Solved papers for RAJASTHAN PMT Rajasthan - PMT Solved Paper-2004

done Rajasthan - PMT Solved Paper-2004 Total Questions - 300

• question_answer1) The power loss in pure inductor in an A.C. circuit will be:
  A)
   \[{{V}_{rms}}\]\[{{I}_{rms}}\]                                  
  done clear
  B)
   more                   
  done clear
  C)
   zero                     
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer2) The potential difference across BC in the following figure will he:
  A)
   1.2 V         
  done clear
  B)
                          2 V                        
  done clear
  C)
   0.8 V                    
  done clear
  D)
          1 V
  done clear
  View Answer play_arrow

• question_answer3) The distance between the ends of wings of an aeroplane is 5 m. The aeroplane is moving with velocity of 200 km/sec in a magnetic field of 10 T. The emf induced across the ends of wings will be:
  A)
   \[{{10}^{7}}\] volt          
  done clear
  B)
          10 volt
  done clear
  C)
   \[{{10}^{6}}\] volt          
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer4) Between the proton and neutron in a nucleus:
  A)
   nuclear force is greater than gravitational force
  done clear
  B)
   gravitational force is greater than nuclear force
  done clear
  C)
   electromagnetic force is lesser than gravitational force
  done clear
  D)
   nuclear force is greater than electromagnetic force
  done clear
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• question_answer5) Potentiometer measures:
  A)
   potential difference
  done clear
  B)
   internal resistance
  done clear
  C)
   current
  done clear
  D)
  external resistance
  done clear
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• question_answer6) The magnetic field \[\vec{B}\] in a circular coil does not depend on:
  A)
   current                               
  done clear
  B)
   radius
  done clear
  C)
   number of turns             
  done clear
  D)
   area
  done clear
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• question_answer7) Results obtained due to eddy currents is:
  A)
   high efficiency between coils of Trans former
  done clear
  B)
   low efficiency between coils of transformer
  done clear
  C)
   loss of heat in core of trans former
  done clear
  D)
   none of these
  done clear
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• question_answer8) The radius of gyration of a hollow spherical shell is 2.5 J. If its frequency of rotation is made 10 times, then new kinetic energy will be:
  A)
   250 J                                    
  done clear
  B)
   0.25 J
  done clear
  C)
   2500 J                  
  done clear
  D)
          2.5 J
  done clear
  View Answer play_arrow

• question_answer9) if a square coil is making an angle \[60{}^\circ \] with electric field E according to figure the electric flux passing through the square coil is (the side of square is 4 cm):
  A)
   853 E                                    
  done clear
  B)
   8 E
  done clear
  C)
   16 E                      
  done clear
  D)
          none of these
  done clear
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• question_answer10) An ideal gas is carried along the cycle ABCA as shown in figure. The net heat given to gas in cycle is 5J. In process\[C\to A,\] the work done by the gas is:
  A)
   -5J                        
  done clear
  B)
   -10 J
  done clear
  C)
   -20 J                     
  done clear
  D)
          -15 J
  done clear
  View Answer play_arrow

• question_answer11) The transition corresponding to first line of Balmer series will be:
  A)
   \[{{n}_{2}}\to {{n}_{1}}\]                            
  done clear
  B)
   \[{{n}_{3}}\to {{n}_{2}}\]
  done clear
  C)
   \[{{n}_{6}}\to {{n}_{2}}\]            
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer12) The moment of inertia of a solid sphere about its tangential axis will be:
  A)
   \[\frac{2}{5}M{{R}^{2}}\]                            
  done clear
  B)
   \[\frac{7}{5}M{{R}^{2}}\]
  done clear
  C)
   \[\frac{5}{3}M{{R}^{2}}\]            
  done clear
  D)
          \[\frac{2}{3}M{{R}^{2}}\]
  done clear
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• question_answer13) The time period of a vibrating spring due to a mass m is T. For twice of its mass, the new time period will be:
  A)
   \[\sqrt{2}T\]                                     
  done clear
  B)
   \[2\sqrt{2}T\]
  done clear
  C)
   \[4T\]                  
  done clear
  D)
          \[5T\]
  done clear
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• question_answer14) On a magnetic needle placed in a uniform magnetic field:
  A)
   \[F\ne 0,\,\,\,\tau \ne 0\]                          
  done clear
  B)
   \[F\ne 0,\,\,\,\tau =0\]
  done clear
  C)
   \[F=0,\,\,\,\tau \ne 0\]                
  done clear
  D)
          \[F=0,\,\,\,\tau =0\]
  done clear
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• question_answer15) The total energy of disc of mass M and velocity v rolling an inclined plane without slipping is:
  A)
   \[\frac{3}{4}M{{\upsilon }^{2}}\]                             
  done clear
  B)
   \[\frac{2}{5}M{{\upsilon }^{2}}\]
  done clear
  C)
   \[\frac{3}{2}M{{\upsilon }^{2}}\]             
  done clear
  D)
          \[1\frac{1}{3}M{{\upsilon }^{2}}\]
  done clear
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• question_answer16) The path of a charged particle entering perpendicularly in a uniform electric field will be:
  A)
   linear                                   
  done clear
  B)
   parabolic
  done clear
  C)
   circular                
  done clear
  D)
          elliptical
  done clear
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• question_answer17) The vector projection of a vector \[3\hat{i}+4\hat{k}\]on y-axis is:
  A)
   5                                            
  done clear
  B)
   4
  done clear
  C)
   3                            
  done clear
  D)
          zero
  done clear
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• question_answer18) In an A.C. circuit containing capacitor:
  A)
   the current leads the potential difference in phase
  done clear
  B)
   the potential difference leads the current in phase
  done clear
  C)
   the potential difference and current are m phase
  done clear
  D)
   none of these
  done clear
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• question_answer19) The work function of a metal is:
  A)
   the energy for the electron to enter into the metal
  done clear
  B)
   the energy for producing X-ray
  done clear
  C)
   the energy for the electron to come out from metal, surface
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer20) In nuclear fission, 0.1% mass is converted into energy. The energy released by the fission of 1 kg mass is:
  A)
   \[2.5\times {{10}^{7}}\,kWh\]
  done clear
  B)
   \[2.5\,\times {{10}^{3}}kWh\]
  done clear
  C)
   \[2.5\,\times {{10}^{6}}kWh\]  
  done clear
  D)
          \[2\times {{10}^{8}}kWh\]
  done clear
  View Answer play_arrow

• question_answer21) The pressure maintained in Coolidge tube is:
  A)
   \[{{10}^{-3}}\,mm\] mm of Hg                 
  done clear
  B)
   \[{{10}^{-7}}\,mm\] of Hg
  done clear
  C)
   10 mm of Hg     
  done clear
  D)
          \[{{10}^{-4}}\,mm\] of Hg
  done clear
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• question_answer22) The resistance of an ideal voltmeter is:
  A)
   very low                             
  done clear
  B)
   infinite
  done clear
  C)
   zero                     
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer23) The amplitude of a particle executing SHM is made three-fourth keeping its lime period constant. Its total energy will be:
  A)
   \[\frac{E}{2}\]                                  
  done clear
  B)
   \[\frac{3}{4}E\]
  done clear
  C)
   \[\frac{9}{16}E\]             
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer24) In the series LCR circuit, the voltmeter and ammeter readings are:
  A)
   2 V, 100 A                          
  done clear
  B)
   100 V, 2A
  done clear
  C)
   100 V, 100 A      
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer25) The average power loss in a resistor in A.C. circuit is:
  A)
   zero                                     
  done clear
  B)
   \[{{P}_{rms}}\]\[{{I}_{rms}}\]
  done clear
  C)
   infinite                
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer26) If in an R-L circuit, \[{{X}_{L}}=100\Omega \] and \[R=100\,\Omega ,\] then in this circuit:
  A)
   current leads the potential difference in phase by \[90{}^\circ \]
  done clear
  B)
   current lags behind the potential difference in phase by \[45{}^\circ \]
  done clear
  C)
   current leads the potential difference in phase by \[45{}^\circ \]
  done clear
  D)
   current and potential difference are in same phase
  done clear
  View Answer play_arrow

• question_answer27) In a p-type semiconductor, there are mainly:
  A)
   free electrons                 
  done clear
  B)
   holes
  done clear
  C)
   both (a) and (b)
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer28) On increasing the temperature of semiconductor, its resistance :
  A)
   decreases
  done clear
  B)
   increases
  done clear
  C)
   depends on pressure
  done clear
  D)
   does not depend on temperature
  done clear
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• question_answer29) In a triode valve, grid is used to control the plate current, because:
  A)
   grid has negative voltage
  done clear
  B)
   grid has no voltage
  done clear
  C)
   grid is nearer to cathode than plate
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer30) When an electron in an hydrogen atom makes a transition from first Bohr orbit to second Bohr orbit, how much energy it absorbs?
  A)
   3.4 eV                                 
  done clear
  B)
   10.2 eV
  done clear
  C)
   13.6 eV               
  done clear
  D)
          1.51 eV
  done clear
  View Answer play_arrow

• question_answer31) If in a diode valve, the plate potential becomes double, then plate current will be:
  A)
   \[2\sqrt{2}\] times                        
  done clear
  B)
   8 times
  done clear
  C)
   \[3\sqrt{3}\] times        
  done clear
  D)
          2 times
  done clear
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• question_answer32) If temperature becomes double, the emitted radiation will be :
  A)
   16 times                             
  done clear
  B)
   8 times
  done clear
  C)
   \[2\sqrt{2}\] times        
  done clear
  D)
          32 times
  done clear
  View Answer play_arrow

• question_answer33) The kinetic energy of one mole gas at 300 K temperature, is E. At 400 K temperature kinetic energy is \[E.\] The value of \[E/E\] is:
  A)
   1.33                      
  done clear
  B)
          \[\sqrt{\left( \frac{4}{3} \right)}\]
  done clear
  C)
   \[\frac{16}{9}\]               
  done clear
  D)
          2
  done clear
  View Answer play_arrow

• question_answer34) The moment of  inertia in rotational motion will be equivalent to ....... as in linear motion:
  A)
   mass                                    
  done clear
  B)
   velocity
  done clear
  C)
   momentum      
  done clear
  D)
          force
  done clear
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• question_answer35) If temperature becomes triple, the root mean square velocity of gas molecules will be:
  A)
   \[\upsilon /2\]                                 
  done clear
  B)
   \[\upsilon \sqrt{3}\]
  done clear
  C)
   \[\sqrt{3}\upsilon \]                     
  done clear
  D)
          same \[[\upsilon \] is the root mean square velocity of gas molecules at temperature T]
  done clear
  View Answer play_arrow

• question_answer36) If a sphere rolling on an inclined plane with velocity v without slipping, the  vertical height of the incline in terms of velocity will be:
  A)
   \[\frac{7\upsilon }{10g}\]                                           
  done clear
  B)
   \[\frac{7{{\upsilon }^{2}}}{10g}\]
  done clear
  C)
   \[\frac{2{{\upsilon }^{2}}}{5g}\]                               
  done clear
  D)
          \[\frac{2\upsilon }{5g}\]
  done clear
  View Answer play_arrow

• question_answer37) Two substances have different atomic masses and same atomic number. They are:
  A)
   isotopes                             
  done clear
  B)
   isobars
  done clear
  C)
   isotones             
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer38) The value of susceptibility of a diamagnetic substance is:
  A)
   small positive                   
  done clear
  B)
   small negative
  done clear
  C)
   positive              
  done clear
  D)
          negligible
  done clear
  View Answer play_arrow

• question_answer39) In isothermal process, the work done in expansion of gas from volume \[{{V}_{1}}\] to \[{{V}_{2}}\] will be:
  A)
   \[nRT\,\ln \left( \frac{{{V}_{2}}}{{{V}_{1}}} \right)\]                       
  done clear
  B)
   \[nRT\,\left( \ln \frac{{{V}_{1}}}{{{V}_{2}}} \right)\]
  done clear
  C)
   \[nRT\]               
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer40) A proton moving with velocity\[\upsilon \]and an \[\text{-}\]particle experience the same force in a magnetic field. The velocity of the \[\alpha \]-particle is:
  A)
   \[\frac{\upsilon }{8}\]                                  
  done clear
  B)
   \[4\upsilon \]
  done clear
  C)
   \[\upsilon \]                     
  done clear
  D)
          \[\frac{\upsilon }{2}\]
  done clear
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• question_answer41) A spaceship of weight 39200 kg-W lands on planet mars whose radius is \[3.4\times {{10}^{6}}m\] and mass is \[6.42\,\times {{10}^{23}}kg\]. The weight of space ship on mars will be (surface   tension   of   water \[=7\times {{10}^{-2}}N/m\]):
  A)
   5000 kg-W                         
  done clear
  B)
   10000 kg-W
  done clear
  C)
   15000 kg-W       
  done clear
  D)
          20000 kg-W
  done clear
  View Answer play_arrow

• question_answer42) The diameter of one drop of water is 0.2 cm. The work done in breaking one drop into 100 droplets will be:
  A)
   \[7.9\times {{10}^{-6}}J\]                           
  done clear
  B)
   \[5.92\times {{10}^{-6}}J\]
  done clear
  C)
   \[2.92\times {{10}^{-6}}J\]         
  done clear
  D)
          \[1.92\times {{10}^{-6}}J\]
  done clear
  View Answer play_arrow

• question_answer43) A geostationary satellite is rotating in circular orbit of radius 36000 km around the earth. A spy satellite which is rotating in circular orbit at a height of some hundred kilometre from earths surface, has time period approximately equal to (Re = 6400 km):
  A)
   1 hour                 
  done clear
  B)
          2 hour
  done clear
  C)
   24 hour               
  done clear
  D)
          36 hour
  done clear
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• question_answer44) The degrees of freedom of a stationary rigid body about its axis will be:
  A)
   one                                      
  done clear
  B)
   two
  done clear
  C)
   three                   
  done clear
  D)
          four
  done clear
  View Answer play_arrow

• question_answer45) The velocity of simple pendulum is maximum at:
  A)
   extremes          
  done clear
  B)
          half displacement
  done clear
  C)
   mean position
  done clear
  D)
          every where
  done clear
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• question_answer46) The separation between the two charges \[+q\]and\[-q\] becomes double. The value of force will be:
  A)
   two fold                             
  done clear
  B)
   half
  done clear
  C)
   four fold            
  done clear
  D)
          one fourth
  done clear
  View Answer play_arrow

• question_answer47) A body is executing SHM. Which of the following properties remains same at each point of its path during motion?
  A)
  Acceleration                      
  done clear
  B)
   Velocity
  done clear
  C)
   Phase                  
  done clear
  D)
          Total energy
  done clear
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• question_answer48) If two coils have self inductance \[{{L}_{1}}\] and\[{{L}_{2}}\] the coefficient of mutual induction will be:
  A)
   \[M\propto \sqrt{{{L}_{1}}{{L}_{2}}}\]                                  
  done clear
  B)
   \[M\propto \sqrt{\left( \frac{{{L}_{1}}}{{{L}_{2}}} \right)}\]
  done clear
  C)
   \[M\propto \sqrt{\left( \frac{{{L}_{2}}}{{{L}_{1}}} \right)}\]        
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer49) When a glass rod is rubbed with silk, the amount of positive charge acquired by glass rod in magnitude is:
  A)
   less than the charge on silk
  done clear
  B)
   greater than the charge on silk
  done clear
  C)
   equal to me charge on silk
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer50) Two sound sources \[{{S}_{1}}\] and\[{{S}_{2}}\]of frequencies 324 Hz and 320 Hz are placed at certain separation. An observer is moving away from\[{{S}_{1}}\] and towards \[{{S}_{2}}\] on line joining them. If he hears no beats then speed of observer is (\[\upsilon \]= 344m/sec):
  A)
   20 m/s
  done clear
  B)
          10 m/s
  done clear
  C)
   5 m/s                   
  done clear
  D)
          2.1 m/s
  done clear
  View Answer play_arrow

• question_answer51) Which of the following statements is not true about reactance of capacitor?
  A)
   It is positive
  done clear
  B)
   It is proportional to capacitance
  done clear
  C)
   It is inversely proportional to capacitance
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer52) The current in pure inductor in an A.C. circuit:
  A)
   leads the potential difference in phase by \[90{}^\circ \]
  done clear
  B)
   lags behind the potential difference in phase by \[90{}^\circ \]
  done clear
  C)
   leads the potential difference in phase by \[45{}^\circ \]
  done clear
  D)
   lags behind the potential difference in phase by \[45{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer53) The hot wire ammeter measures:
  A)
   D.C. current      
  done clear
  B)
          A.C. current
  done clear
  C)
   none of above
  done clear
  D)
          both (a) and (b)
  done clear
  View Answer play_arrow

• question_answer54) In a step-up transformer ratio of number of turns in primary to seconday coil is 1 : 25. If input voltage is 230 volt and load current is 2 amp, then current in primary is :
  A)
   50 A                                     
  done clear
  B)
   25 A
  done clear
  C)
   12.5 A                  
  done clear
  D)
          6.25 A
  done clear
  View Answer play_arrow

• question_answer55) Thermal speed of free electrons is of the order of :
  A)
   \[{{10}^{-5\,}}\,m/s\]                   
  done clear
  B)
          \[{{10}^{2}}\,m/s\]
  done clear
  C)
   \[{{10}^{8}}\,m/s\]        
  done clear
  D)
          \[{{10}^{5}}\,m/s\]
  done clear
  View Answer play_arrow

• question_answer56) At the time of total solar eclipse, the spectrum of solar radiation will have :
  A)
   All Fraunhofer lines changed into bright coloured lines
  done clear
  B)
   no lines at all
  done clear
  C)
   a smaller number of dark Fraunhofer lines
  done clear
  D)
   a large number of dark Fraunhofer lines
  done clear
  View Answer play_arrow

• question_answer57) The displacement equation of a particle is \[x=3\,\sin \,2t+4\,\cos \,2t,\] where \[x\] is in metre and t in second. The amplitude and maximum velocity will be respectively:
  A)
   5m, 10 m/s                        
  done clear
  B)
   3m, 2 m/s
  done clear
  C)
   4m, 2 m/s          
  done clear
  D)
          3m, 4 m/s
  done clear
  View Answer play_arrow

• question_answer58) The radius of first Bohr orbit is \[0.5\,\overset{\text{o}}{\mathop{\text{A}}}\,,\] then radius of fourth Bohr orbit will be:
  A)
   \[0.03\,\overset{\text{o}}{\mathop{\text{A}}}\,\]                         
  done clear
  B)
   \[0.12\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
   \[2.0\,\overset{\text{o}}{\mathop{\text{A}}}\,\]           
  done clear
  D)
          \[8.0\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer59) In order that a thin film of oil floating on die surface of water shows colours due to interference, the thickness of the oil film should be of the order of:
  A)
   \[10000\,\overset{\text{o}}{\mathop{\text{A}}}\,\]                      
  done clear
  B)
   \[50000\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
   \[10\,\overset{\text{o}}{\mathop{\text{A}}}\,\]                             
  done clear
  D)
          \[1\, \ cm\]
  done clear
  View Answer play_arrow

• question_answer60) The temperature of an ideal gas at atmospheric pressure is 300K and volume1m3.If temperature and volume become double, then pressure will be:
  A)
   \[{{10}^{5}}N/{{m}^{2}}\]                                         
  done clear
  B)
   \[2\times {{10}^{5}}N/{{m}^{2}}\]
  done clear
  C)
   \[0.5\times {{10}^{5}}N/{{m}^{2}}\]
  done clear
  D)
   \[4\times {{10}^{5}}N/{{m}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer61) The system of three charges is shown in figure. If charge B is displaced slightly towards A, then:
  A)
   it will displace more towards A
  done clear
  B)
   it will displace towards C
  done clear
  C)
   its path will be parabolic
  done clear
  D)
   its motion will be SHM
  done clear
  View Answer play_arrow

• question_answer62) It will displace more towards A it will displace towards C its path will be parabolic its motion will be SHM The lengths of two closed organ pipes are 0.750 m and 0.770 m. If they are sounded together, 3 beats per second are produced. The velocity of sound will be:
  A)
   330.5 m/sec                      
  done clear
  B)
   340.5 m/sec
  done clear
  C)
   346.5 m/sec      
  done clear
  D)
          None of these
  done clear
  View Answer play_arrow

• question_answer63) A traveller is running towards a stationary train. If the train sounds a horn of frequency n, the apparent frequency heard by the traveller will be:
  A)
   \[n=n\left( \frac{\upsilon +{{\upsilon }_{0}}}{\upsilon } \right)\]              
  done clear
  B)
   \[n=n\left( \frac{\upsilon -{{\upsilon }_{0}}}{\upsilon +{{\upsilon }_{s}}} \right)\]
  done clear
  C)
   \[n=n\left( \frac{\upsilon +{{\upsilon }_{0}}}{\upsilon } \right)\]
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer64) The susceptibility of ferromagnetic and paramagnetic substances are respectively:
  A)
   positive, positive            
  done clear
  B)
   positive, negative
  done clear
  C)
   negative, positive
  done clear
  D)
         negative, negative
  done clear
  View Answer play_arrow

• question_answer65) On increasing the temperature of a gas contained in a closed vessel by \[1{}^\circ C\], the pressure increases by 0.4%. The initial temperature of gas is:
  A)
   25 K                                      
  done clear
  B)
   250 K
  done clear
  C)
   \[2500{}^\circ C\]           
  done clear
  D)
          \[250{}^\circ C\]
  done clear
  View Answer play_arrow

• question_answer66) The graphs given below depict the dependence of two reactive impedances\[{{X}_{1}}\]and\[{{X}_{2}}\] on the frequency of the alternating emf applied individually to them. We can then say that:           
  A)
    \[{{X}_{1}}\] is an inductor and \[{{X}_{2}}\] is a capacitor
  done clear
  B)
   \[{{X}_{1}}\] is a resistor and \[{{X}_{2}}\] is a capacitor
  done clear
  C)
   \[{{X}_{1}}\] is a capacitor and \[{{X}_{2}}\] is an inductor
  done clear
  D)
   \[{{X}_{1}}\] is an inductor and \[{{X}_{2}}\] is a resistor
  done clear
  View Answer play_arrow

• question_answer67) A mass m is moving with constant velocity along a line parallel to \[x-\]axis beyond origin. Its angular momentum about die origin:
  A)
   remains constant           
  done clear
  B)
   is zero
  done clear
  C)
   increases           
  done clear
  D)
          decreases
  done clear
  View Answer play_arrow

• question_answer68) A particle executes SUM with frequency The frequency of its kinetic energy is:
  A)
   \[f\]                                                     
  done clear
  B)
   \[2f\]
  done clear
  C)
   \[f/2\]                 
  done clear
  D)
          \[4f\]
  done clear
  View Answer play_arrow

• question_answer69) Three spheres have radii 7.5 cm, 8.5 cm and 9.5 cm respectively. Which sphere exerts maximum pressure on earth?
  A)
   First                                     
  done clear
  B)
   Second
  done clear
  C)
   Third                    
  done clear
  D)
          All same
  done clear
  View Answer play_arrow

• question_answer70) In an ideal transformer:
  A)
   \[{{P}_{output}}<{{P}_{input}}\]             
  done clear
  B)
          \[{{P}_{output}}>{{P}_{input}}\]
  done clear
  C)
   \[{{P}_{output}}><{{P}_{input}}\]          
  done clear
  D)
          \[{{P}_{output}}={{P}_{input}}\]
  done clear
  View Answer play_arrow

• question_answer71) What will be the angular width of central maximum in Fraunhofer diffraction when light of wavelength \[6000\overset{\text{o}}{\mathop{\text{A}}}\,\] is used and slit width is \[12\times {{10}^{-5}}cm\]?
  A)
   2 rad                                    
  done clear
  B)
   3 rad
  done clear
  C)
   1 rad                    
  done clear
  D)
          8 rad
  done clear
  View Answer play_arrow

• question_answer72) A spring executes SHM with mass of 10 kg attached to it. The force constant of spring is 10Nm. If at any instant its velocity is 40 cm/sec, the displacement will be (where amplitude is 0.5m):
  A)
   0.09 m                                 
  done clear
  B)
   0.3 m
  done clear
  C)
   0.03 m                 
  done clear
  D)
          0.9 m
  done clear
  View Answer play_arrow

• question_answer73) A train moving with 20 m/s towards a stationary observer produces frequency of 440 Hz. The apparent frequency heard will be (\[\upsilon \] = 330 m/s):
  A)
   448 Hz
  done clear
  B)
                         455 Hz
  done clear
  C)
   440 Hz
  done clear
  D)
          468 Hz
  done clear
  View Answer play_arrow

• question_answer74) A thin prism P of angle \[4{}^\circ \] made of glass of refractive index 1.54 is combined to a thin prism Q made of glass of refractive index 1.72 to produce dispersion without deviation. The angle of prism Q is:
  A)
  \[4{}^\circ \]                                      
  done clear
  B)
  \[3{}^\circ \]
  done clear
  C)
  \[2.6{}^\circ \]                  
  done clear
  D)
         \[5.3{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer75) The de-Broglie wavelength\[\lambda \]:
  A)
   is proportional to mass
  done clear
  B)
   is proportional to impulse
  done clear
  C)
   inversely proportional to impulse
  done clear
  D)
   does not depend on impulse
  done clear
  View Answer play_arrow

• question_answer76) In an LCR (parallel) A.C. circuit, the impedance in state of resonance is:
  A)
   equal to resistance
  done clear
  B)
   zero
  done clear
  C)
   infinite
  done clear
  D)
   depending on L and C
  done clear
  View Answer play_arrow

• question_answer77) The average power lost in pure capacitor in an A.C. circuit:
  A)
   is zero
  done clear
  B)
   depends on V
  done clear
  C)
   depends on C
  done clear
  D)
   depends on insulator placed in parallel plate capacitor
  done clear
  View Answer play_arrow

• question_answer78) 78.      The plate resistance of triode valve is \[30k\Omega \] and trans conductance is 2x10-3 mho. The amplification factor is:
  A)
   60                                         
  done clear
  B)
   50
  done clear
  C)
   1.5                        
  done clear
  D)
          0.67
  done clear
  View Answer play_arrow

• question_answer79) For making p-n junction diode forward biased:
  A)
   same potential is applied
  done clear
  B)
   greater potential is given to n compared to p             
  done clear
  C)
   greater potential is given to p compared to n
  done clear
  D)
   unbalanced concentration
  done clear
  View Answer play_arrow

• question_answer80) The half life of radioactive substance is 4 days. Its 100 g is kept for 16 days. After this period, the amount of substance remained is:
  A)
                       25g                                                       
  done clear
  B)
               15 g            
  done clear
  C)
               10 g                      
  done clear
  D)
                                          6.25g
  done clear
  View Answer play_arrow

• question_answer81) Hysteresis property is shown by:            
  A)
                           ferromagnetic substances
  done clear
  B)
               paramagnetic substances            
  done clear
  C)
               both above            
  done clear
  D)
               none of these
  done clear
  View Answer play_arrow

• question_answer82) A nucleus of mass number 232 and atomic number 90 after many disintegrations of \[\alpha \] and \[\] radiations, decays into other nucleus whose mass number is 220 and atomic number is 86. The numbers of \[\alpha \] and \[\beta \] radiations will be:
  A)
   4, 0                       
  done clear
  B)
   3, 6
  done clear
  C)
   3, 2       
  done clear
  D)
          2, 1
  done clear
  View Answer play_arrow

• question_answer83) If at temperature \[{{T}_{1}}=1000K,\] the wavelength is \[1.4\times {{10}^{-6}}m,\] then at what temperature the wavelength will be \[2.8\times {{10}^{-6}}m\]?            
  A)
               2000 K                                                 
  done clear
  B)
               500 K
  done clear
  C)
               250 K                  
  done clear
  D)
                                          None of these
  done clear
  View Answer play_arrow

• question_answer84) The minimum wavelength of photon is \[5000\overset{\text{o}}{\mathop{\text{A}}}\,\]its energy will be:            
  A)
               2.5 eV      
  done clear
  B)
               50 V            
  done clear
  C)
               5.48 eV                 
  done clear
  D)
                                         7.48 eV
  done clear
  View Answer play_arrow

• question_answer85) The potential of dipole at its axial position is proportional to distance r as:            
  A)
               \[{{r}^{-2}}\]  
  done clear
  B)
               \[{{r}^{-1}}\]
  done clear
  C)
               r            
  done clear
  D)
                                      \[{{r}^{o}}\]
  done clear
  View Answer play_arrow

• question_answer86) The \[\beta \]-particles are emitted by:            
  A)
               atom                       
  done clear
  B)
               orbit
  done clear
  C)
               nucleus     
  done clear
  D)
                                      none of these
  done clear
  View Answer play_arrow

• question_answer87) If in a Youngs double slit experiment, the slit width is 3 cm, the separation between slits and screen is 7 cm and wavelength of light is \[1000\overset{\text{o}}{\mathop{\text{A}}}\,,\]then fringe width will be (\[\alpha =1{}^\circ \],\[\mu \] = 1.5):            
  A)
               \[2\times {{10}^{-5\,}}\,m\]                          
  done clear
  B)
               \[2\times {{10}^{-3\,}}\,m\]
  done clear
  C)
               \[0.2\times {{10}^{-5\,}}\,m\]                      
  done clear
  D)
               none of these
  done clear
  View Answer play_arrow

• question_answer88) The direction of Lorentz force can be found by:            
  A)
               Flemings right hand rule
  done clear
  B)
               Flemings left hand rule
  done clear
  C)
               Maxwells screw law
  done clear
  D)
               none of these
  done clear
  View Answer play_arrow

• question_answer89) The dielectric constant K of an insulator can be:            
  A)
               5            
  done clear
  B)
               0.5
  done clear
  C)
               -1           
  done clear
  D)
                                      zero
  done clear
  View Answer play_arrow

• question_answer90) Four equal charges q are placed at centre of a conducting hollow sphere. If they are displaced 1.5 cm from centre, the change in flux will be:            
  A)
               doubled   
  done clear
  B)
                                     tripled
  done clear
  C)
               same       
  done clear
  D)
                                      none of these
  done clear
  View Answer play_arrow

• question_answer91) How is the time period of simple pendulum vary with its amplitude?            
  A)
               \[T\propto a\]                     
  done clear
  B)
               \[T\propto {{a}^{2}}\]
  done clear
  C)
               Does not depend on its amplitude
  done clear
  D)
               None of these
  done clear
  View Answer play_arrow

• question_answer92) If length of wire is 2m and the mass is 80 kg, the tension in wire will be if frequency is \[\frac{1}{4}\]Hz:            
  A)
               400 N                       
  done clear
  B)
               80 N
  done clear
  C)
               4 N                           
  done clear
  D)
               4000 N
  done clear
  View Answer play_arrow

• question_answer93) The value of heat produced by the water if \[\mu =100,\] \[{{C}_{p}}=1.5\] and temperature difference is \[20{}^\circ C\], is:            
  A)
               3000 J     
  done clear
  B)
               300 J
  done clear
  C)
               7.5 J        
  done clear
  D)
                                      none of these
  done clear
  View Answer play_arrow

• question_answer94) When charge is given to a soap bubble, it             shows:            
  A)
               an increase in size
  done clear
  B)
               sometimes an increase and sometimes a decrease in size
  done clear
  C)
               no change in size
  done clear
  D)
               none of these
  done clear
  View Answer play_arrow

• question_answer95) When temperature of a gas is increased then which of the following statements is always true?            
  A)
                           Work is done on the gas
  done clear
  B)
               Heat is supplied to gas
  done clear
  C)
               Energy of gas is increased
  done clear
  D)
               Pressure of gas remains unchanged.
  done clear
  View Answer play_arrow

• question_answer96) An increase in pressure required to decrease the 200 litres volume of a liquid by 0.004% in pipa is (Bulk modulus of the liquid = 2100 Mpa)            
  A)
                           188 kPa                                   
  done clear
  B)
               8.4 kPa
  done clear
  C)
               18.8 kPa   
  done clear
  D)
                                     84 kPa
  done clear
  View Answer play_arrow

• question_answer97) The number of bullets are fired in all possible directions with the same initial velocity n. The maximum area of ground covered by bullets is:            
  A)
                           \[\pi {{\left( \frac{2{{\mu }^{2}}}{g} \right)}^{2}}\]                              
  done clear
  B)
               \[2\pi {{\left( \frac{u}{g} \right)}^{2}}\]
  done clear
  C)
               \[\pi {{\left( \frac{u}{2g} \right)}^{2}}\]
  done clear
  D)
                                      \[\pi {{\left( \frac{{{u}^{2}}}{g} \right)}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer98) If on heating liquid through \[80{}^\circ C\],the mass expelled is (1/100) the of mass still remaining,         the coefficient of apparent expansion of liquid is:            
  A)
               \[1.25\times {{10}^{-4}}/{}^\circ C\]          
  done clear
  B)
               \[12.5\times {{10}^{-4}}/{}^\circ C\]
  done clear
  C)
               \[152\times {{10}^{-5}}/{}^\circ C\]            
  done clear
  D)
               none of these
  done clear
  View Answer play_arrow

• question_answer99) If 2g of helium is enclosed in a vessel at NTP, how much heat should be added to it to double the pressure?            
  A)
                           1638 J
  done clear
  B)
               1019 J
  done clear
  C)
               1568 J      
  done clear
  D)
                                      836 J
  done clear
  View Answer play_arrow

• question_answer100) Angular velocity of minute hand of a clock is:            
  A)
               \[\frac{\pi }{30\,}\,rad/s\]
  done clear
  B)
                                      \[\pi \,rad/s\]
  done clear
  C)
               \[2\pi \,rad/s\]
  done clear
  D)
                     \[\frac{\pi }{1800}\,rad/s\]
  done clear
  View Answer play_arrow

• question_answer101) The correct IUPAC name of the following compound is: \[{{C}_{2}}{{H}_{5}}.\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,=\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,.{{C}_{2}}{{H}_{5}}\]
  A)
   3, 4-dimethyul-3-hyexne
  done clear
  B)
   3, 5-dimethyul-3-hyexne
  done clear
  C)
   3, 4-dimethyul-2-hyexne
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer102) Which of the following compound yield\[2,5-dimethyl\text{ }hexan-1,\text{ }6-dial\]?
  A)
   3, 6-dimethyl cyclohexene
  done clear
  B)
   3, 4-dimethyl cyclohexene
  done clear
  C)
   4, 6-dimethyl cyclohexene
  done clear
  D)
   3, 5-dimethyl cyclohexene
  done clear
  View Answer play_arrow

• question_answer103) Which of these are isomers?
  A)
   Dimethyl ether and ethanol
  done clear
  B)
   Acetic acid and acetone
  done clear
  C)
   Acetic acid and acetaldehyde
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer104) Compound X \[({{C}_{3}}{{H}_{8}}O)\] on oxidation gives compound Y \[({{C}_{3}}{{H}_{6}}O)\]. What is compound X?
  A)
   \[{{1}^{o}}\text{ }alcohol\]  
  done clear
  B)
   \[{{2}^{o}}\,alcohol\]
  done clear
  C)
   \[{{3}^{o}}\text{ }alcohol~\]
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer105) Which of the following easily accept proton?
  A)
   \[{{F}^{-}}\]                                      
  done clear
  B)
   \[B{{r}^{-}}\]
  done clear
  C)
   \[O{{H}^{-}}\]                  
  done clear
  D)
          \[N{{H}_{2}}^{-}\]
  done clear
  View Answer play_arrow

• question_answer106) The bond angle in \[R-OR\]is:
  A)
   \[{{110}^{o}}\]                                
  done clear
  B)
   \[{{109}^{o}}\]
  done clear
  C)
   \[108{}^\circ \]                
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer107) \[C-O\] bond in ether can be broken by:
  A)
   \[HI\]                                  
  done clear
  B)
   \[HCl\]
  done clear
  C)
   \[HBr\]               
  done clear
  D)
          \[HF\]
  done clear
  View Answer play_arrow

• question_answer108) Strongest \[C-H\] bond is present in:
  A)
   ethane 
  done clear
  B)
                          ethane
  done clear
  C)
   ethyne               
  done clear
  D)
          \[C{{H}_{3}}OH\]
  done clear
  View Answer play_arrow

• question_answer109) In which of the following reactions, ethyl chloride is obtained in good yield?
  A)
   \[Ethane+C{{l}_{2}}\xrightarrow{h\omega }\]
  done clear
  B)
   \[Ethane+C{{l}_{2}}(excess)\xrightarrow{h\omega }\]
  done clear
  C)
   \[Ethane+C{{l}_{2}}\xrightarrow{in\,dark}\]
  done clear
  D)
   \[Benzene+C{{l}_{2}}\xrightarrow{{}}\]
  done clear
  View Answer play_arrow

• question_answer110) Which of the following yield 2 mole of formaldehyde on ozonolysis?
  A)
   \[CH\equiv CH\]             
  done clear
  B)
   \[C{{H}_{2}}=C{{H}_{2}}\]
  done clear
  C)
   \[C{{H}_{3}}-CH=C{{H}_{2}}\]
  done clear
  D)
   \[{{C}_{6}}{{H}_{6}}\]
  done clear
  View Answer play_arrow

• question_answer111) Acetylene on treating with \[C{{u}_{2}}C{{l}_{2}}\]gives:
  A)
   \[C{{u}_{2}}{{C}_{2}}\]
  done clear
  B)
   \[CuCHCl\]
  done clear
  C)
   \[~C{{H}_{4}}\]
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer112) What will be obtained when acetylene is treated with arsenic chloride?
  A)
   Lewisite    
  done clear
  B)
   Mustard gas
  done clear
  C)
   Westron     
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer113) Phenol on treatment with formaldehyde in dilute alkaline solution, gives:
  A)
   bakelite     
  done clear
  B)
   terylene
  done clear
  C)
   nylon       
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer114) Bradys reagent is:
  A)
   \[2,4-DNP\]
  done clear
  B)
   \[cone.\text{ }HCl+ZnC{{l}_{2}}\]
  done clear
  C)
   \[DMSO\]    
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer115) Hinsbergs reagent is used to distinguish between:
  A)
   \[{{1}^{o}}\] and \[{{2}^{o}}\] amines
  done clear
  B)
   \[{{2}^{o}}\] and \[{{3}^{o}}\] amines
  done clear
  C)
  (a) & (b)
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer116) The reaction of \[{{H}_{2}}\] on ethene in presence of catalyst is called :
  A)
   Sabatier Sanderens reaction
  done clear
  B)
   Darzen reaction
  done clear
  C)
   Rosenmund reduction
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer117) Propene on addition with \[HI,\] gives:
  A)
   \[C{{H}_{3}}-CHI-C{{H}_{3}}\]
  done clear
  B)
   \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{3}}I\]
  done clear
  C)
   \[C{{H}_{3}}-CHI-C{{H}_{2}}I\]
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer118) Which of the following reacts with both acetaldehyde and acetone?
  A)
   F.S         
  done clear
  B)
   \[C{{H}_{3}}MgBr\]
  done clear
  C)
   T.R         
  done clear
  D)
   Benedict solution
  done clear
  View Answer play_arrow

• question_answer119) Schiffs solution B is obtained when:
  A)
   sulphurous acid is passed through magenta dye
  done clear
  B)
   chlorine is passed through magenta dye
  done clear
  C)
   both (a) & (b)
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer120) Fentons reagent is:
  A)
   \[FeS{{O}_{4}}+{{H}_{2}}{{O}_{2}}\]
  done clear
  B)
   \[HgS{{O}_{4}}+{{H}_{2}}{{O}_{2}}\]
  done clear
  C)
   \[FeS{{O}_{4}}+{{H}_{2}}O\]
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer121) Compound used in Rosenmunds reduction is:
  A)
   \[RCOCl\]    
  done clear
  B)
   \[RCON{{H}_{2}}\]
  done clear
  C)
  \[RCOOR\]    
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer122) Which of the following shows chloroform reaction?
  A)
   \[C{{H}_{3}}CHOHC{{H}_{3}}\]
  done clear
  B)
   Methanol
  done clear
  C)
   n-butanol
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer123) Which on reduction does not give primary amines?
  A)
   \[{{C}_{2}}{{H}_{3}}NC\]
  done clear
  B)
   \[C{{H}_{3}}CN\]
  done clear
  C)
   \[C{{H}_{3}}CON{{H}_{2}}\]
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer124) Primary amine \[+\text{ }aldehyde\xrightarrow{{}}X,\]X is:
  A)
   amino                 
  done clear
  B)
          imino
  done clear
  C)
   nitro                    
  done clear
  D)
          nitrito
  done clear
  View Answer play_arrow

• question_answer125) The reactivity order of acid derivatives is:
  A)
   \[RCOCl>RCOOCOR>RCON{{H}_{2}}\]
  done clear
  B)
   \[RCOCl<RCOOCOR<RCON{{H}_{2}}\]
  done clear
  C)
   \[RCOCl>RCOOCOR<RCON{{H}_{2}}\]
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer126) \[Aniline+NaN{{O}_{2}}\text{+ }HCl\xrightarrow{{}}X,\]X is:
  A)
   diazo salt   
  done clear
  B)
   dye
  done clear
  C)
   polymer    
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer127) Which of the following reacts fastly with \[Na\]?
  A)
   \[{{1}^{o}}\text{ }alcohol\]
  done clear
  B)
   \[{{2}^{o}}\text{ }alcohol\]
  done clear
  C)
   \[{{3}^{o}}\text{ }alcohol\]
  done clear
  D)
   The reactivity of all is equal
  done clear
  View Answer play_arrow

• question_answer128) Which of the following is the strongest base?
  A)
   \[{{({{C}_{2}}{{H}_{5}})}_{2}}NH\]
  done clear
  B)
   \[{{(C{{H}_{3}})}_{3}}N\]
  done clear
  C)
   \[{{(C{{H}_{3}})}_{2}}NH\]
  done clear
  D)
   \[C{{H}_{3}}N{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer129) \[Phenol+CC{{l}_{4}}+KOH\xrightarrow{{}}\text{ }X,\]X is:
  A)
   salicyclic acid
  done clear
  B)
   salicaldehyde
  done clear
  C)
   benzoic acid
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer130) Toluene \[\xrightarrow{Cr{{O}_{2}}C{{l}_{2}}}A\xrightarrow{anhydride}B,\]B is:
  A)
   cinnamic acid
  done clear
  B)
   cinnamaldehyde
  done clear
  C)
   salicyclic acid
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer131) \[{{C}_{6}}{{H}_{6}}+C{{H}_{3}}COC1\xrightarrow{AlC{{l}_{3}}}P,\]the product P is:
  A)
   acetophenone
  done clear
  B)
   benzophenone
  done clear
  C)
   toluene     
  done clear
  D)
   all the above
  done clear
  View Answer play_arrow

• question_answer132) \[C{{H}_{3}}C{{H}_{2}}COOH\xrightarrow{SOC{{l}_{2}}}A\] \[\xrightarrow{LiAl{{H}_{4}}\,(ter.\,but.\,oxide)}B\xrightarrow{\underset{C{{H}_{2}}OH}{\overset{C{{H}_{2}}OH}{\mathop{|}}}\,}C.\] C is:
  A)
   
  done clear
  B)
   \[C{{H}_{3}}C{{H}_{2}}COCl\]
  done clear
  C)
   \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}N{{H}_{2}}\]
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer133) Lucas reagent is:
  A)
   \[Conc.HCl+ZnC{{l}_{2}}\]
  done clear
  B)
   \[N{{H}_{2}}\text{ }N{{H}_{2}}/{{C}_{2}}{{H}_{5}}ONa\]
  done clear
  C)
   \[Zn-Hg/HCl\]
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer134) Which of the following can distinguish between carbonyl compounds and carboxylic acids?
  A)
   \[NaHC{{O}_{3}}\]   
  done clear
  B)
   \[NaHS{{O}_{4}}\]
  done clear
  C)
   \[Cone.\text{ }HCl\]
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer135) The last traces of water from alcohol can be removed by:
  A)
   passing dry \[HCl\]
  done clear
  B)
   ether
  done clear
  C)
   \[Mg\]
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer136) Aniline and benzene can be distinguished by:
  A)
   \[HCl\]
  done clear
  B)
   \[NaOH\]
  done clear
  C)
   \[{{H}_{2}}O\]
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer137) Ethyl alcohol cannot be purified more than 95% by distillation, because:
  A)
   it forms H-bonds with water
  done clear
  B)
   it is lighter than water
  done clear
  C)
   it forms azeotropic solution
  done clear
  D)
   all the above are correct
  done clear
  View Answer play_arrow

• question_answer138) Which of the following shows cis-trans isomerism?
  A)
   \[2-butyne\]
  done clear
  B)
   \[1-butyne\]
  done clear
  C)
   \[2-butene\]
  done clear
  D)
   \[1-butene\]
  done clear
  View Answer play_arrow

• question_answer139) Why ethyl iodide becomes coloured when it is exposed to air?
  A)
   Iodine flows out
  done clear
  B)
   Iodine is liberated
  done clear
  C)
   lodoform is formed
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer140) The compound, which decolorize bromine water but does not react with Tollens reagent is:
  A)
   ethene                               
  done clear
  B)
   ethyne
  done clear
  C)
   propane             
  done clear
  D)
          ethane
  done clear
  View Answer play_arrow

• question_answer141) The compound which reacts with hydroxyl amine but does not react with Tollens reagent is:
  A)
   \[C{{H}_{3}}CHO\]         
  done clear
  B)
          \[HCHO\]
  done clear
  C)
  \[{{C}_{2}}{{H}_{5}}OH\]              
  done clear
  D)
          \[C{{H}_{3}}COC{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer142) Marsh gas is:
  A)
   \[C{{H}_{4}}\]                  
  done clear
  B)
          \[{{C}_{2}}{{H}_{6}}\]
  done clear
  C)
  \[{{C}_{3}}{{H}_{8}}\]                    
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer143) Natural gas is:
  A)
   \[C{{H}_{4}}\]
  done clear
  B)
   \[CO+{{H}_{2}}+C{{H}_{4}}\]
  done clear
  C)
   \[C{{H}_{4}}+{{C}_{2}}{{H}_{6}}+{{C}_{3}}{{H}_{8}}\]
  done clear
  D)
   all the above
  done clear
  View Answer play_arrow

• question_answer144) \[CHC{{l}_{3}}\]is tested prior to its use as anaesthetic, by:
  A)
   \[AgN{{O}_{3}}+HCl\]
  done clear
  B)
   \[HCl\]
  done clear
  C)
   \[AgN{{O}_{3}}\]
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer145) Which is used to get ethyl alcohol from acetic acid?
  A)
   Acetobacter acetii
  done clear
  B)
   Zymase
  done clear
  C)
   Maltase
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer146) Which of the following does not give carbylamine test?
  A)
   \[\phi -N{{H}_{2}}\]
  done clear
  B)
   \[C{{H}_{3}}N{{H}_{2}}\]
  done clear
  C)
   \[{{(C{{H}_{3}})}_{2}}NH\]
  done clear
  D)
   all die above give this test
  done clear
  View Answer play_arrow

• question_answer147) Westrosol is:
  A)
   trichloro ethylene
  done clear
  B)
   tetrachloro ethane
  done clear
  C)
   tetrachloro ethylene
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer148) Possible isomers of \[{{C}_{3}}{{H}_{7}}Cl\] are:
  A)
   \[2\]                    
  done clear
  B)
          \[5\] 
  done clear
  C)
   \[3\]                    
  done clear
  D)
          \[6\]
  done clear
  View Answer play_arrow

• question_answer149) \[CH\equiv CH+HgS{{O}_{4}}\xrightarrow{{{H}_{2}}O}A,\] A is:
  A)
   \[C{{H}_{2}}=C{{H}_{2}}~\]
  done clear
  B)
   \[{{C}_{2}}{{H}_{5}}OH\]
  done clear
  C)
   \[HCHO\]     
  done clear
  D)
   acetaldehyde
  done clear
  View Answer play_arrow

• question_answer150) Bohrs model is:
  A)
   successful in calculating energy of helium like atoms
  done clear
  B)
   successful in calculating energy of hydrogen like atoms
  done clear
  C)
   successful in calculating energy of lithium like atoms
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer151) The energy of zero point in terms of principal quantum numbers is:
  A)
   \[0\]                    
  done clear
  B)
          \[1\]    
  done clear
  C)
   \[2\]                    
  done clear
  D)
          \[3\]
  done clear
  View Answer play_arrow

• question_answer152) Which of the following statements is not true?
  A)
   The most appropriate level for electron in zero level is nucleus
  done clear
  B)
   The wave function of electron in an atom is related to its spinning speed
  done clear
  C)
   The electron does not have magnetic moment while spinning
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer153) Electronegativity is maximum of:
  A)
   \[N\]                   
  done clear
  B)
          \[Cl\]  
  done clear
  C)
   \[C\]                    
  done clear
  D)
          \[0\]
  done clear
  View Answer play_arrow

• question_answer154) Which of the following has maximum charge density?
  A)
    \[S{{c}^{2-}}\]                 
  done clear
  B)
          \[{{S}^{2-}}\]
  done clear
  C)
   \[{{O}^{2-}}\]                   
  done clear
  D)
          \[T{{e}^{2-}}\]
  done clear
  View Answer play_arrow

• question_answer155) Lewis acid is:
  A)
   \[{{C}_{2}}{{H}_{4}}\]                                   
  done clear
  B)
   \[C{{H}_{4}}\]
  done clear
  C)
   \[CO\]                 
  done clear
  D)
          \[GaC{{l}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer156) pH of \[N/100\text{ }\] \[HCl\]will be:
  A)
   \[1\]                                    
  done clear
  B)
   \[4\]
  done clear
  C)
   \[0.2\]                 
  done clear
  D)
          \[2\]
  done clear
  View Answer play_arrow

• question_answer157) In a buffer, if the ratio of salt and acid is increased 10 times, then pH will:
  A)
   increase by 10
  done clear
  B)
   decrease by 10
  done clear
  C)
   increase by one
  done clear
  D)
   decrease by one
  done clear
  View Answer play_arrow

• question_answer158) The solution of \[N{{a}_{2}}C{{O}_{3}}\] will be:
  A)
   weakly basic
  done clear
  B)
   strongly basic
  done clear
  C)
   weakly acidic
  done clear
  D)
   strongly acidic
  done clear
  View Answer play_arrow

• question_answer159) The correct statement for isotonic solution is:
  A)
   both have equal pH on taking equal moles
  done clear
  B)
   both have equal \[pKa\]on taking equal moles
  done clear
  C)
   both have equal molar solubility
  done clear
  D)
   all the above
  done clear
  View Answer play_arrow

• question_answer160) \[{{N}_{2}}+{{O}_{2}}2NO.\]. For this reaction \[{{K}_{a}}=100,\] then \[{{K}_{a}}\] for reaction, \[2NO{{N}_{2}}+{{O}_{2}}\]will be:
  A)
   \[0.01\]                              
  done clear
  B)
   \[0.1\]
  done clear
  C)
   \[10\]                  
  done clear
  D)
          \[100\]
  done clear
  View Answer play_arrow

• question_answer161) Which reaction will proceed in forward direction on increasing pressure?
  A)
   \[C(s)+{{O}_{2}}\xrightarrow{{}}C{{O}_{2}}\]
  done clear
  B)
   \[S{{O}_{2}}(s)+0.5{{O}_{2}}\xrightarrow{{}}S{{O}_{3}}\]
  done clear
  C)
   \[{{N}_{2}}+3{{H}_{2}}\xrightarrow{{}}2N{{H}_{3}}\]
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer162) The nature of the solution of potash alum is:
  A)
   acidic                                   
  done clear
  B)
   basic
  done clear
  C)
   neutral               
  done clear
  D)
          amphoteric
  done clear
  View Answer play_arrow

• question_answer163) Lattice energy is calculated by :
  A)
   Born-Haber cycle
  done clear
  B)
   Mullikens equation
  done clear
  C)
   both (a) and (b)
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer164) Which element is not found in nature?
  A)
   \[Tc\]                                  
  done clear
  B)
   \[Y\]
  done clear
  C)
   \[Sr\]                   
  done clear
  D)
          \[Pt\]
  done clear
  View Answer play_arrow

• question_answer165) In which of the following methods, \[Mg\] is used to reduce titanium chloride?
  A)
   IMI process
  done clear
  B)
   Haber process
  done clear
  C)
   Krolls method
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer166) In which of the following, there are 3 bp and 2 Ip?
  A)
   \[N{{H}_{3}}\]                 
  done clear
  B)
          \[P{{H}_{3}}\]
  done clear
  C)
   \[Cl{{F}_{3}}\]                  
  done clear
  D)
          \[AlC{{l}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer167)  Which is the coordinating solvent in the following reaction? \[B{{F}_{3}}+HF+{{H}_{2}}O\xrightarrow{{}}{{H}_{3}}{{O}^{+}}+BF_{4}^{-}\]
  A)
   \[HF\]                 
  done clear
  B)
          \[{{H}_{2}}O\]
  done clear
  C)
   \[N{{H}_{3}}\]                 
  done clear
  D)
          \[B{{F}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer168) Which change is involved in the extraction of metal from metal oxide?
  A)
   Free energy change and pressure
  done clear
  B)
   Free energy change and temperature
  done clear
  C)
   Free energy change and concentration
  done clear
  D)
   Free energy change and volume
  done clear
  View Answer play_arrow

• question_answer169) Maximum paramagnetism is in:
  A)
   \[C{{r}^{3+}}\]                 
  done clear
  B)
          \[M{{n}^{2+}}\]
  done clear
  C)
   \[M{{n}^{3+}}\]              
  done clear
  D)
          \[N{{i}^{2+}}\]
  done clear
  View Answer play_arrow

• question_answer170) Which of the following is wrong electronic configuration?
  A)
   \[Sc=3{{d}^{1}}{{s}^{2}}\]
  done clear
  B)
   \[Ti=3{{d}^{2}}{{s}^{2}}\]
  done clear
  C)
   \[Cr=3{{d}^{5}}{{s}^{1}}\]     
  done clear
  D)
   \[V=3{{s}^{2}}{{d}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer171) Which of the following give red-violet colour in flame-test?
  A)
   \[Li\]                    
  done clear
  B)
          \[Na\]
  done clear
  C)
   \[Cs\]                  
  done clear
  D)
          \[Rb\]
  done clear
  View Answer play_arrow

• question_answer172) The reason for the light yellow colour of \[AgBr\]is:
  A)
   \[AgBr\] is more covalent due to more polarizing power of \[A{{g}^{+}}\]
  done clear
  B)
   \[AgBr\]is less covalent
  done clear
  C)
   both (a) and (b)
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer173) Which of the following reaction is balanced?
  A)
   \[AsO_{4}^{2-}+MnO_{4}^{-}\xrightarrow{{}}AsO_{4}^{3-}+Mn{{O}_{2}}+2{{H}_{2}}O\]
  done clear
  B)
   \[MnO_{4}^{-}+{{C}_{2}}O_{4}^{2-}\xrightarrow{{}}M{{n}^{2+}}+C{{O}_{2}}\]
  done clear
  C)
   \[Cu+4HN{{O}_{3}}\xrightarrow{{}}Cu{{(N{{O}_{3}})}_{2}}+2N{{O}_{2}}+2{{H}_{2}}O\]
  done clear
  D)
   \[{{H}_{2}}S+HN{{O}_{3}}\to {{H}_{2}}O+NO+S\]
  done clear
  View Answer play_arrow

• question_answer174) Which of the following oxide is acidic?
  A)
   \[{{B}_{2}}{{O}_{3}}\]       
  done clear
  B)
   \[Be{{O}_{2}}\]
  done clear
  C)
   \[A{{l}_{2}}{{O}_{3}}\]      
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer175) In the electrolysis of alumina, cryolite and \[Ca{{F}_{2}}\]are added to:
  A)
   increase the emf of cell
  done clear
  B)
   decrease the emf of cell
  done clear
  C)
   decrease the melting point
  done clear
  D)
   both (b) and (c)
  done clear
  View Answer play_arrow

• question_answer176) Maximum unpaired electrons are in:
  A)
   \[C{{r}^{2+}}\]                 
  done clear
  B)
          \[M{{n}^{3+}}\]
  done clear
  C)
   \[M{{n}^{2+}}\]              
  done clear
  D)
          \[C{{o}^{2+}}\]
  done clear
  View Answer play_arrow

• question_answer177) The ionization energy will be maximum for:
  A)
   \[H\]                    
  done clear
  B)
          \[Li\]
  done clear
  C)
   \[Be\]                 
  done clear
  D)
          \[B\]
  done clear
  View Answer play_arrow

• question_answer178) Which oxidation state is the most common among lanthanides?
  A)
   \[+2\]                  
  done clear
  B)
          \[+3\]  
  done clear
  C)
   \[+1\]                                  
  done clear
  D)
          \[+4\]
  done clear
  View Answer play_arrow

• question_answer179) The correct quantum numbers of 3p-electrons, are:
  A)
   \[n=3,l=2,m=+2,s=+\frac{1}{2}\]
  done clear
  B)
   \[n=3,l=1,m=-1,s=-\frac{1}{2}\]
  done clear
  C)
   \[n=3,l=-2,m=-2,s=+\frac{1}{2}\]
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer180) The equilibrium constant \[{{K}_{C}}\] is affected by:
  A)
   temperature
  done clear
  B)
   pressure
  done clear
  C)
   initial concentration of reactants
  done clear
  D)
   catalyst
  done clear
  View Answer play_arrow

• question_answer181) Which of the following reaction is an acid-base reaction?
  A)
   \[Ca{{C}_{2}}{{O}_{4}}+{{H}^{+}}\to C{{a}^{2+}}+H{{C}_{2}}O_{4}^{-}\]
  done clear
  B)
   \[Al+{{H}_{2}}O+O{{H}^{-}}\to Al{{O}_{2}}+\frac{3}{4}{{H}_{2}}\]
  done clear
  C)
   \[HgS+NO_{3}^{-}+{{H}^{+}}\to H{{g}^{2+}}+{{H}_{2}}O+....\]
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer182) Which of the following reaction is disproportionation?
  A)
   \[2{{H}_{2}}S+S{{O}_{2}}\to 2{{H}_{2}}O+3S\]
  done clear
  B)
   \[Ca+{{H}_{2}}\to Ca{{H}_{2}}\]
  done clear
  C)
   \[4P+3NaOH+3{{H}_{2}}O\to P{{H}_{3}}\]\[+3Na{{H}_{2}}P{{O}_{2}}\]
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer183) How many \[\sigma \] and \[\pi \]-bonds are in \[SO_{4}^{2-}\]?
  A)
   \[4,2\]        
  done clear
  B)
   \[3,2\]
  done clear
  C)
   \[4,3\]       
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer184) Which of the following is square planar?
  A)
   \[Cl{{F}_{3}}\]      
  done clear
  B)
   \[S{{O}_{3}}\]
  done clear
  C)
   \[{{[Pt{{(Cl)}_{4}}]}^{2-}}\]  
  done clear
  D)
   \[HgC{{l}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer185) The wrong match is:
  A)
    \[P{{F}_{3}}-\]trigonal bipyramidal
  done clear
  B)
   \[S{{O}_{2}}-\]angular
  done clear
  C)
   \[Cl{{F}_{3}}-\]tetrahedral
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer186) In a basic buffer \[0.0025\text{ }mole\]of \[N{{H}_{4}}Cl\] and \[0.15\text{ }mole\]of \[N{{H}_{4}}OH\]are present. The pH of the solution will be: \[{{(}_{P}}{{K}_{b}}=4.74)\]
  A)
   \[11.04\]            
  done clear
  B)
          \[10.24\]
  done clear
  C)
   \[6.62\]              
  done clear
  D)
          \[5.48\]
  done clear
  View Answer play_arrow

• question_answer187) Whose electron affinity will be less than zero?    
  A)
   \[{{O}^{2-}}\]
  done clear
  B)
   \[{{S}^{2-}}\]
  done clear
  C)
   both (a) and (b)
  done clear
  D)
   \[{{O}^{+}}\]
  done clear
  View Answer play_arrow

• question_answer188) Which of the following transition is correct for Balmer series?
  A)
   \[3\xrightarrow{{}}1\]
  done clear
  B)
   \[1\xrightarrow{{}}2\]
  done clear
  C)
   \[4\xrightarrow{{}}2\]
  done clear
  D)
   \[2\xrightarrow{{}}4\]
  done clear
  View Answer play_arrow

• question_answer189) \[{{K}_{C}}=9\] for the reaction,\[A+BC+D\]. If A and B are taken in equal amounts, then amount of C in equilibrium is:
  A)
   \[1\]                    
  done clear
  B)
          \[0.25\]
  done clear
  C)
   \[0.75\]              
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer190) Nylon is not a:
  A)
   condensation polymer
  done clear
  B)
   poly amide
  done clear
  C)
   copolymer
  done clear
  D)
   homopolymer
  done clear
  View Answer play_arrow

• question_answer191) When amonia is heated with dry alkali metal in presence of \[Fe,\] the product obtained is:
  A)
   \[Fe,\] complex, \[{{H}_{2}}\]
  done clear
  B)
   metal amide, \[{{H}_{2}}\]
  done clear
  C)
   alkaline complex, \[{{H}_{2}}\]
  done clear
  D)
   alkaline complex
  done clear
  View Answer play_arrow

• question_answer192) \[Mn{{O}_{2}}\xrightarrow{{}}M{{n}^{3+}}\] The oxidation state of \[Mn\] changes from:
  A)
   \[+4\xrightarrow{{}}+3\]
  done clear
  B)
   \[+4\xrightarrow{{}}+2\]
  done clear
  C)
   \[+2\xrightarrow{{}}+1\]
  done clear
  D)
   \[+3\xrightarrow{{}}+1\]
  done clear
  View Answer play_arrow

• question_answer193) \[_{p}{{K}_{a}}\] will be maximum for:
  A)
   \[HCl{{O}_{4}}\]              
  done clear
  B)
          \[HCl{{O}_{3}}\]
  done clear
  C)
   \[HCl{{O}_{2}}\]              
  done clear
  D)
          \[HClO\]
  done clear
  View Answer play_arrow

• question_answer194) The energy of first shell in hydrogen is \[13.6\text{ }eV,\]the energy of second shell will be:
  A)
   \[3.4eV\]           
  done clear
  B)
          \[10.2\text{ }eV\]
  done clear
  C)
   \[1\,eV\]           
  done clear
  D)
          \[3.02\text{ }eV\]
  done clear
  View Answer play_arrow

• question_answer195) The method used to prepare steel is:
  A)
   Bessemers converter method
  done clear
  B)
   Seimens Martin process
  done clear
  C)
   Von-Arkel method
  done clear
  D)
   L.D. process
  done clear
  View Answer play_arrow

• question_answer196) The number of \[\alpha -\] and \[\beta -\]particles lost when \[_{92}{{U}^{238}}\] changes to  \[_{82}P{{b}^{206}}\] :
  A)
   \[8\alpha ,\,6\beta \]                   
  done clear
  B)
          \[6\alpha ,\,6\beta \]
  done clear
  C)
   \[6\alpha ,\,6\beta \]                   
  done clear
  D)
          \[4\alpha ,\,4\beta \]
  done clear
  View Answer play_arrow

• question_answer197) Zeises salt is:
  A)
   \[[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]
  done clear
  B)
   \[K[PtC{{l}_{3}}\,({{C}_{2}}{{H}_{4}})]\]
  done clear
  C)
   \[Fe{{({{C}_{5}}{{H}_{5}})}_{2}}\]
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer198) How many Faradays are required to reduce one mole of \[MnO_{4}^{-}\] to \[M{{n}^{2+}}\]?
  A)
   \[1\]                    
  done clear
  B)
          \[2\]
  done clear
  C)
   \[3\]                    
  done clear
  D)
          \[5\]
  done clear
  View Answer play_arrow

• question_answer199) If a process is both endothennic and spontaneous, then:
  A)
   \[\Delta S>0\]                  
  done clear
  B)
          \[\Delta S<0\]
  done clear
  C)
   \[\Delta G>0\]                 
  done clear
  D)
          \[\Delta E=0\]
  done clear
  View Answer play_arrow

• question_answer200) Number of chiral carbon atoms in                     
  A)
  \[3\]     
  done clear
  B)
  \[4\]
  done clear
  C)
   \[1\]
  done clear
  D)
  \[2\]
  done clear
  View Answer play_arrow

• question_answer201) Golgi complex works for:
  A)
   excretion                           
  done clear
  B)
   respiration
  done clear
  C)
               secretion               
  done clear
  D)
                      reduction
  done clear
  View Answer play_arrow

• question_answer202) The number of chromosomes becomes half in:
  A)
               anaphase\[\text{-I}\] 
  done clear
  B)
               anaphase\[\text{-II}\]
  done clear
  C)
               telophase\[\text{-I}\]
  done clear
  D)
                  telophase\[\text{-II}\]
  done clear
  View Answer play_arrow

• question_answer203) Lipid bilayer is present in:            
  A)
               plasma membrane            
  done clear
  B)
               ribosome
  done clear
  C)
               chromosome                       
  done clear
  D)
               nucleolus
  done clear
  View Answer play_arrow

• question_answer204) Hydrolases are found in:
  A)
               lysosomes                             
  done clear
  B)
               ribosomes
  done clear
  C)
               mesosomes                         
  done clear
  D)
               peroxisomes
  done clear
  View Answer play_arrow

• question_answer205) Chiasmata are formed:
  A)
               due to crossing over of some part between homologous chromosomes
  done clear
  B)
               due to crossing over of some part between  non   homologous chromosomes
  done clear
  C)
               due to duplication of homologous and non-homologous chromosomes
  done clear
  D)
               due to loss of some part of chromosomes
  done clear
  View Answer play_arrow

• question_answer206) Acrosome is formed by:
  A)
               mitochondria                       
  done clear
  B)
               golgi body
  done clear
  C)
               ribosomes                             
  done clear
  D)
               lysosome
  done clear
  View Answer play_arrow

• question_answer207) In protoplasm fat store in the form of :
  A)
               polypeptide                         
  done clear
  B)
               triglyceride
  done clear
  C)
               polysaccharide    
  done clear
  D)
               nucleosides
  done clear
  View Answer play_arrow

• question_answer208) Antibody is formed by :            
  A)
               protein     
  done clear
  B)
                                     carbohydrate
  done clear
  C)
               nucleic acid                           
  done clear
  D)
               lipid
  done clear
  View Answer play_arrow

• question_answer209) Food store as oil in:            
  A)
               Chlamydomonas               
  done clear
  B)
               Oedogonium
  done clear
  C)
               Vaucheria                             
  done clear
  D)
               Chara
  done clear
  View Answer play_arrow

• question_answer210) BOD increased by:
  A)
               algae                                       
  done clear
  B)
               moss
  done clear
  C)
               ferns       
  done clear
  D)
                                      distilated wastes
  done clear
  View Answer play_arrow

• question_answer211) Lowest number of chromosomes are found in:
  A)
               Haplopappus                       
  done clear
  B)
               Cyprus
  done clear
  C)
               Salix        
  done clear
  D)
                                      None of these
  done clear
  View Answer play_arrow

• question_answer212) Peat moss is :
  A)
               Funeria     
  done clear
  B)
               ferns
  done clear
  C)
               algae       
  done clear
  D)
                                      Sphagnum
  done clear
  View Answer play_arrow

• question_answer213) Difference between algae and bryophyte is:
  A)
               terrestrial habitat
  done clear
  B)
               sterile jacket
  done clear
  C)
               biflagellate gametes
  done clear
  D)
               none of these
  done clear
  View Answer play_arrow

• question_answer214) Which have great importance in genetics?
  A)
                       Penicillium                             
  done clear
  B)
   Clewceps
  done clear
  C)
               Neurospora                          
  done clear
  D)
   None of these             
  done clear
  View Answer play_arrow

• question_answer215) The protein toxin producing bacteria, which used to control biological pest is :
  A)
               E. coli                                       
  done clear
  B)
   Agrobacterium
  done clear
  C)
               Mycobacterium sp.           
  done clear
  D)
   B. thuringiensis
  done clear
  View Answer play_arrow

• question_answer216) Bacteria with single flagella at one end is called :
  A)
               monotrichous                      
  done clear
  B)
   lophotrichous
  done clear
  C)
               amphitrichous                     
  done clear
  D)
   peritrichous
  done clear
  View Answer play_arrow

• question_answer217) Bacteria causing disease of citrus is:
  A)
               citrus leaf spot
  done clear
  B)
               stunt disease
  done clear
  C)
               citrus canker
  done clear
  D)
               citrus greening leaf disease
  done clear
  View Answer play_arrow

• question_answer218) \[{{O}_{2}}\] does not evolved in photosynthesis of:
  A)
               BGA                         
  done clear
  B)
   green algae
  done clear
  C)
               bacteria                  
  done clear
  D)
          autotrophic plant
  done clear
  View Answer play_arrow

• question_answer219) Photosynthetic pigment of bacteria is:
  A)
               chromoplast                         
  done clear
  B)
   chloroplast
  done clear
  C)
               leucoplast             
  done clear
  D)
          chromatophore
  done clear
  View Answer play_arrow

• question_answer220) Virus have :
  A)
               RNA
  done clear
  B)
               DNA
  done clear
  C)
               Either RNA or DNA
  done clear
  D)
               Neither DNA nor RNA
  done clear
  View Answer play_arrow

• question_answer221) Which group is evolutionary modern?            
  A)
               Gymnosperms    
  done clear
  B)
   Grasses
  done clear
  C)
               Pteridophytes                     
  done clear
  D)
   Algae
  done clear
  View Answer play_arrow

• question_answer222) Absence of which is cause of naked seeds?
  A)
               Integument                          
  done clear
  B)
   Nucellus
  done clear
  C)
               Ovary wall             
  done clear
  D)
          Perianth
  done clear
  View Answer play_arrow

• question_answer223) Genes for haemophilia disease is located on:
  A)
               autosomes
  done clear
  B)
                          mitochondria
  done clear
  C)
               chloroplasts                          
  done clear
  D)
   sex chromosomes
  done clear
  View Answer play_arrow

• question_answer224) Most stable ecosystem is:
  A)
               desert                     
  done clear
  B)
          marine
  done clear
  C)
               mountain 
  done clear
  D)
                          forest
  done clear
  View Answer play_arrow

• question_answer225) Stratification occurs in:
  A)
               desert                     
  done clear
  B)
   tropical forest
  done clear
  C)
               deciduous forest                
  done clear
  D)
   tundra
  done clear
  View Answer play_arrow

• question_answer226) Ecological pyramids were discovered by?
  A)
               Eiton                        
  done clear
  B)
   Odum
  done clear
  C)
               Reiter                      
  done clear
  D)
          None of these
  done clear
  View Answer play_arrow

• question_answer227) Haptonastic movement is found in:
  A)
               Drosera                                  
  done clear
  B)
   Oxalis
  done clear
  C)
               Mimosa                                 
  done clear
  D)
   Cucurbita
  done clear
  View Answer play_arrow

• question_answer228) Which one of the following was rediscoverer of Mendels work:
  A)
               Muller                                     
  done clear
  B)
   Morgan
  done clear
  C)
               Correns                  
  done clear
  D)
          Bridge
  done clear
  View Answer play_arrow

• question_answer229) In yeast during anaerobic respiration how many glucose molecules are required for production of 38 ATP?
  A)
               1                                
  done clear
  B)
   2
  done clear
  C)
               19             
  done clear
  D)
          38
  done clear
  View Answer play_arrow

• question_answer230) Krebs cycle is completed by:
  A)
               hydrogenation    
  done clear
  B)
   oxidation
  done clear
  C)
               nitrification           
  done clear
  D)
          reduction
  done clear
  View Answer play_arrow

• question_answer231) Tulip belong to family:
  A)
               Asteraceae                           
  done clear
  B)
   Liliaceae
  done clear
  C)
               Brassicaceae        
  done clear
  D)
          Malvaceae
  done clear
  View Answer play_arrow

• question_answer232) Tetradynamous stamens are found in:
  A)
               Cruciferae                             
  done clear
  B)
   Amaryllidaceae
  done clear
  C)
               Mimoseae                            
  done clear
  D)
   Compositae
  done clear
  View Answer play_arrow

• question_answer233) Bicarpellary, syncarpus and with pseudoseptum fruit is:
  A)
               siliqua                                     
  done clear
  B)
   akene
  done clear
  C)
               capsule                   
  done clear
  D)
          all of these
  done clear
  View Answer play_arrow

• question_answer234) Heroin is:            
  A)
               diacetyl morphine             
  done clear
  B)
               triacetyl morphine
  done clear
  C)
               tetra acetyl morphine      
  done clear
  D)
               mono acetyl morphine
  done clear
  View Answer play_arrow

• question_answer235) Conditions helpful in photo respiration are:            
  A)
               more \[{{O}_{2}}\] and less \[C{{O}_{2}}\]
  done clear
  B)
               less \[{{O}_{2}}\] and more \[C{{O}_{2}}\]
  done clear
  C)
               more temperature and less \[{{O}_{2}}\]
  done clear
  D)
               more humidity and less temperature
  done clear
  View Answer play_arrow

• question_answer236) Bicollateral bundles are found in:
  A)
               Cucurbitaceae                     
  done clear
  B)
               Malvaceae
  done clear
  C)
               Cruciferae
  done clear
  D)
                                      None of these
  done clear
  View Answer play_arrow

• question_answer237) Vascular bundle with cambium is called:
  A)
               closed                                     
  done clear
  B)
   open
  done clear
  C)
               exarch                    
  done clear
  D)
          endarch
  done clear
  View Answer play_arrow

• question_answer238) When phloem is surrounded completely by xylem the vascular bundle is called:            
  A)
               amphicribral                         
  done clear
  B)
               amphivasal
  done clear
  C)
               conjoint    
  done clear
  D)
                         collateral
  done clear
  View Answer play_arrow

• question_answer239) Lignification is associated with:            
  A)
               xylem                                      
  done clear
  B)
   phloem
  done clear
  C)
               parenchyma         
  done clear
  D)
                      chlorenchyma
  done clear
  View Answer play_arrow

• question_answer240) Periderm included:
  A)
               Phellum, Phelloderm, Plerome
  done clear
  B)
               Phellum, Phellogen, Dermatogen
  done clear
  C)
               Phellum, Phellogen, Phelloderm
  done clear
  D)
               Phellum, Phellogen, Cortex
  done clear
  View Answer play_arrow

• question_answer241) Which of the following is the result of double fertilization?
  A)
               Cotyledon                             
  done clear
  B)
   Nucellus
  done clear
  C)
               Endosperm                           
  done clear
  D)
               None of these
  done clear
  View Answer play_arrow

• question_answer242) Embryo sac is:
  A)
               megagametophyte           
  done clear
  B)
               megasporophyte
  done clear
  C)
               megasporophyll
  done clear
  D)
   endosperm
  done clear
  View Answer play_arrow

• question_answer243) Pollen tube entered through micropyle in :
  A)
               porogamy                             
  done clear
  B)
               chalazogamy
  done clear
  C)
               syngamy   
  done clear
  D)
                                      misogamy
  done clear
  View Answer play_arrow

• question_answer244) Which formed in oxidative phosphorylation?
  A)
               ATP in photosynthesis
  done clear
  B)
               ATP in respiration
  done clear
  C)
               \[NADP{{H}_{2}}\] in photosynthesis
  done clear
  D)
               \[NADP{{H}_{2}}\] in respiration
  done clear
  View Answer play_arrow

• question_answer245) Which of the following is the region of cell division?
  A)
               Root cap                
  done clear
  B)
               meristematic region
  done clear
  C)
               Root hair zone
  done clear
  D)
               None of these
  done clear
  View Answer play_arrow

• question_answer246) Natural auxin is :
  A)
               NAA                                         
  done clear
  B)
               \[\text{IAA}\]
  done clear
  C)
               2, 4-D       
  done clear
  D)
                                      Aviton
  done clear
  View Answer play_arrow

• question_answer247) How many letters used in genetic code?
  A)
               1                                
  done clear
  B)
               2
  done clear
  C)
               3           
  done clear
  D)
                          4
  done clear
  View Answer play_arrow

• question_answer248) Correct name is :
  A)
               Brassica indica
  done clear
  B)
               Mengifera Indica
  done clear
  C)
               SOLANUM MELONGINA
  done clear
  D)
               Mimosa Pudica
  done clear
  View Answer play_arrow

• question_answer249) Two stamens as exception in Cruciferae are found in:
  A)
               Nastrnsium                          
  done clear
  B)
               Senebiera
  done clear
  C)
               Raphanus                             
  done clear
  D)
               Brassica
  done clear
  View Answer play_arrow

• question_answer250) Difference between prokaryote and eukaryote is :
  A)
               in cell size                              
  done clear
  B)
               in cell shape
  done clear
  C)
               in chemical composition of protoplasm
  done clear
  D)
               in organization of nuclear material
  done clear
  View Answer play_arrow

• question_answer251) Stomata are also called as:
  A)
               stomates                               
  done clear
  B)
               lenticels
  done clear
  C)
               hydathods
  done clear
  D)
                                      bark
  done clear
  View Answer play_arrow

• question_answer252) In soil water available for plants is:            
  A)
               capillary water
  done clear
  B)
               chemically bound water
  done clear
  C)
               gravitational water
  done clear
  D)
               hygroscopic water
  done clear
  View Answer play_arrow

• question_answer253) Who discovered the super bugs?
  A)
               H.G. Khorana
  done clear
  B)
               Dilip Sah
  done clear
  C)
               Anand Mohan Chakrawarty
  done clear
  D)
               Robert
  done clear
  View Answer play_arrow

• question_answer254) Genes are located in:
  A)
               chromosomes                     
  done clear
  B)
   ribosomes
  done clear
  C)
               lysosomes             
  done clear
  D)
          sphaerosomes
  done clear
  View Answer play_arrow

• question_answer255) In Amoeba, osmoregulation takes place by:
  A)
               vontractile vacuole            
  done clear
  B)
   ectoplasm
  done clear
  C)
               pseudopodia                       
  done clear
  D)
   hyaloplasm
  done clear
  View Answer play_arrow

• question_answer256) The infective stage of Plasmodium in humans is:
  A)
               sporozoite                            
  done clear
  B)
   trophozoite
  done clear
  C)
               gametocyte          
  done clear
  D)
          merozoite
  done clear
  View Answer play_arrow

• question_answer257) In Plasmodium ookinete is formed by:
  A)
               trophozoite                          
  done clear
  B)
   zygote
  done clear
  C)
               sporozoite            
  done clear
  D)
          merozoite
  done clear
  View Answer play_arrow

• question_answer258) In Plsmodium signet ring stage is formed during:
  A)
               exo-erythrocytic schizogony
  done clear
  B)
               erythrocytic schizogony
  done clear
  C)
               sporogony
  done clear
  D)
               gamogony
  done clear
  View Answer play_arrow

• question_answer259) During unfavourable conditions Amoeba              reproduces through:
  A)
               binary fission                       
  done clear
  B)
   sporulation
  done clear
  C)
               multiple fission   
  done clear
  D)
   conjugation
  done clear
  View Answer play_arrow

• question_answer260) Radial symmetry is found in:
  A)
               frog                          
  done clear
  B)
   starfish
  done clear
  C)
               humans                                  
  done clear
  D)
   Pheretima
  done clear
  View Answer play_arrow

• question_answer261) In Hydra reproduction occurs in favorable conditions :
  A)
               by budding                           
  done clear
  B)
   by gametes
  done clear
  C)
               by gemmules                       
  done clear
  D)
   binary fission
  done clear
  View Answer play_arrow

• question_answer262) Haemocoel is present in:
  A)
               Pheretima                             
  done clear
  B)
               Periplaneta
  done clear
  C)
               Sponge                                   
  done clear
  D)
               Ascaris
  done clear
  View Answer play_arrow

• question_answer263) Chitin as exoskeleton found in:
  A)
               Periplaneta                           
  done clear
  B)
   Ascaris
  done clear
  C)
               Pheretima             
  done clear
  D)
                      Hydra
  done clear
  View Answer play_arrow

• question_answer264) Pseudocoel is present in:
  A)
               Periplaneta                           
  done clear
  B)
               Ascaris
  done clear
  C)
               Pheretima
  done clear
  D)
                         Hydra
  done clear
  View Answer play_arrow

• question_answer265) Ascaris is found in:
  A)
               body cavity                           
  done clear
  B)
   lymph nodes
  done clear
  C)
               tissue                      
  done clear
  D)
          alimentary canal
  done clear
  View Answer play_arrow

• question_answer266) Ascaris is:            
  A)
               a parasite
  done clear
  B)
               a autotroph
  done clear
  C)
               facultative autotroph
  done clear
  D)
               facultative heterotrophy
  done clear
  View Answer play_arrow

• question_answer267) Alimentary canal is absent in:            
  A)
               Cestoda    
  done clear
  B)
                                      Gastropoda
  done clear
  C)
               Nematoda                            
  done clear
  D)
   Pelecypoda
  done clear
  View Answer play_arrow

• question_answer268) Metameric segmentation is the main feature of:            
  A)
               Annelida  
  done clear
  B)
                         Echinodermata
  done clear
  C)
               Arthropoda                          
  done clear
  D)
               Coelenterata
  done clear
  View Answer play_arrow

• question_answer269) Naked DNA without histones is found in:
  A)
               prokaryotes                                         
  done clear
  B)
   eukaryotes
  done clear
  C)
               protozoa                                
  done clear
  D)
   coelenterate
  done clear
  View Answer play_arrow

• question_answer270) Nematoblasts are formed by :
  A)
               interstitial cells    
  done clear
  B)
   gland cells
  done clear
  C)
               mesoepithelial cells          
  done clear
  D)
   nerve cells
  done clear
  View Answer play_arrow

• question_answer271) Yellow spot is found in :
  A)
               muscles                                  
  done clear
  B)
   nerves
  done clear
  C)
               kidney                    
  done clear
  D)
                      eyes
  done clear
  View Answer play_arrow

• question_answer272) Spindles are formed by:
  A)
               microtubules
  done clear
  B)
               endoplasmic reticulum
  done clear
  C)
               golgi body                             
  done clear
  D)
   peroxisomes
  done clear
  View Answer play_arrow

• question_answer273) Scales are found in :
  A)
               pisces                                      
  done clear
  B)
   rabbit
  done clear
  C)
               human                                    
  done clear
  D)
   rat
  done clear
  View Answer play_arrow

• question_answer274) Which is not correct for birds?
  A)
                       Exothermic                           
  done clear
  B)
               Pneumatic bones
  done clear
  C)
               Lungs with air sacs             
  done clear
  D)
   Amniotes
  done clear
  View Answer play_arrow

• question_answer275) Which is not a part of hindbrain?
  A)
               Thalamus                               
  done clear
  B)
               Cerebellum
  done clear
  C)
               Pons        
  done clear
  D)
                                      Medulla
  done clear
  View Answer play_arrow

• question_answer276) Types of salivary glands present in rabbit are :            
  A)
               one                                          
  done clear
  B)
               two
  done clear
  C)
               three       
  done clear
  D)
                          four
  done clear
  View Answer play_arrow

• question_answer277) Which is not in pair in rabbit?
  A)
               Azygous vein                       
  done clear
  B)
               Hemizygous vein
  done clear
  C)
               Caudal vein                           
  done clear
  D)
               All of these
  done clear
  View Answer play_arrow

• question_answer278) Canal system is present in phylum :            
  A)
               Annelida                                
  done clear
  B)
               Porifera
  done clear
  C)
               Acanthocephala
  done clear
  D)
               Echinodermata
  done clear
  View Answer play_arrow

• question_answer279) Mitosis occurs in:
  A)
               skin cells                                
  done clear
  B)
   heart cells
  done clear
  C)
               kidney cells                           
  done clear
  D)
               all of these
  done clear
  View Answer play_arrow

• question_answer280) Book lungs are the respiratory organs in:            
  A)
               protozoans                           
  done clear
  B)
   cnidarians
  done clear
  C)
               arthropodes                         
  done clear
  D)
   amphibians
  done clear
  View Answer play_arrow

• question_answer281) Ichthyophis belongs to:
  A)
               Amphibia                               
  done clear
  B)
   Reptilia
  done clear
  C)
               Pisces                      
  done clear
  D)
                      Aves
  done clear
  View Answer play_arrow

• question_answer282) Cleavage found in mesolecithal egg is:
  A)
               holoblastic and equal
  done clear
  B)
               holoblastic and unequal
  done clear
  C)
               meroblastic
  done clear
  D)
               discoidal
  done clear
  View Answer play_arrow

• question_answer283) Egg of frog is:            
  A)
               alecithal                                 
  done clear
  B)
               macrolecithal
  done clear
  C)
               telolecithal                            
  done clear
  D)
               mesolecithal
  done clear
  View Answer play_arrow

• question_answer284) Which is formed in gastrulation?            
  A)
               Archenteron                        
  done clear
  B)
   Heart
  done clear
  C)
               Brain       
  done clear
  D)
                      None of these
  done clear
  View Answer play_arrow

• question_answer285) Which is the function of nor-epinephrin ?            
  A)
               Increase blood pressure
  done clear
  B)
               Urine formation
  done clear
  C)
               Increase secretion of adrenalin
  done clear
  D)
               None of the above
  done clear
  View Answer play_arrow

• question_answer286) Ammonia is converted into urea in :
  A)
               kidney      
  done clear
  B)
                          lungs
  done clear
  C)
               liver        
  done clear
  D)
                      spleen
  done clear
  View Answer play_arrow

• question_answer287) Vitamin C is present as :
  A)
               oxalic acid                              
  done clear
  B)
               glutemic acid
  done clear
  C)
               ascorbic acid                         
  done clear
  D)
               citric acid
  done clear
  View Answer play_arrow

• question_answer288) Cortis organ is present in :
  A)
               Reisners membrane
  done clear
  B)
               Scala vestibule
  done clear
  C)
               Basilars membrane
  done clear
  D)
               Middle lamella
  done clear
  View Answer play_arrow

• question_answer289) Eggs of cockroach give rise to:
  A)
               nymph 
  done clear
  B)
                                      caterpillar
  done clear
  C)
               larva       
  done clear
  D)
                                      pupa
  done clear
  View Answer play_arrow

• question_answer290) Typhlosole is found in:
  A)
               Pheretima
  done clear
  B)
                                      Periplaneta
  done clear
  C)
               Hydra       
  done clear
  D)
                                      Ascaris
  done clear
  View Answer play_arrow

• question_answer291) Which is not an insect?
  A)
                       Spider      
  done clear
  B)
                                      Housefly
  done clear
  C)
               Cockroach
  done clear
  D)
                          Mosquito
  done clear
  View Answer play_arrow

• question_answer292) Echolocation system is found in:
  A)
               Equns       
  done clear
  B)
                                      Amphibia
  done clear
  C)
               Bat         
  done clear
  D)
                                      Oryctolagus
  done clear
  View Answer play_arrow

• question_answer293) Which is a reptile?
  A)
               Salamander                          
  done clear
  B)
   Newt
  done clear
  C)
               Toad       
  done clear
  D)
                      Turtles
  done clear
  View Answer play_arrow

• question_answer294) Covering of vacuoles is formed by :
  A)
               plasma membrane            
  done clear
  B)
   tonoplast
  done clear
  C)
               leucoplast                             
  done clear
  D)
               symplast
  done clear
  View Answer play_arrow

• question_answer295) Phenomenon of industrial melanism demonstrates :
  A)
               reproductive isolation
  done clear
  B)
               genetic isolation
  done clear
  C)
               natural selection
  done clear
  D)
               geographical isolation
  done clear
  View Answer play_arrow

• question_answer296) Which sugar is present in nucleic acid?
  A)
               Pentose    
  done clear
  B)
                                     Hexose
  done clear
  C)
               Fructose                                
  done clear
  D)
   Glucose
  done clear
  View Answer play_arrow

• question_answer297) Which of the following maintain the shape of cell?
  A)
               Osmotic pressure              
  done clear
  B)
   Turgor pressure
  done clear
  C)
               Wall pressure                      
  done clear
  D)
               Osmosis
  done clear
  View Answer play_arrow

• question_answer298) Vivipary is found in :
  A)
               Coelenterata                       
  done clear
  B)
               Protozoa
  done clear
  C)
               Rabbit                                     
  done clear
  D)
               Pisces
  done clear
  View Answer play_arrow

• question_answer299) The ultimate energy source of ecosystem is :
  A)
               solar energy                         
  done clear
  B)
               biomass
  done clear
  C)
               producer  
  done clear
  D)
                                      carbohydrates
  done clear
  View Answer play_arrow

• question_answer300) Testis fail to descend in scrotal sacs, this condition is called as :
  A)
               cryptorchidism    
  done clear
  B)
               hernia
  done clear
  C)
               castrection                            
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow