Solved papers for BCECE Medical BCECE Medical Solved Papers-2014

done BCECE Medical Solved Papers-2014 Total Questions - 150

• question_answer1) Two quantities X and Y have different dimensions. Which mathematical operation given below is physically meaningful?
  A)
   \[X+Y\]               
  done clear
  B)
   \[X-Y\]
  done clear
  C)
   \[\frac{X}{Y}\]                 
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer2) If \[A=3\hat{i}+4\hat{j}\] and \[B=7\hat{i}+24\hat{j}\], then the vector having the same magnitude as Band parallel to A is
  A)
   \[15\hat{i}+20\hat{j}\]         
  done clear
  B)
   \[5\hat{i}-3\hat{j}\]
  done clear
  C)
   \[15\hat{i}+13\hat{j}\]          
  done clear
  D)
   \[5\hat{i}+14\hat{j}\]
  done clear
  View Answer play_arrow

• question_answer3) The gravitational field due to a mass distribution is \[E=\frac{k}{{{x}^{3}}}\] in the \[x\]-direction, where k is a constant. The value of gravitational potential at a distance x is [Taking gravitational potential to be zero at infinity]
  A)
   \[\frac{k}{x}\]                 
  done clear
  B)
   \[\frac{k}{{{x}^{3}}}\]
  done clear
  C)
   \[\frac{k}{2{{x}^{2}}}\]             
  done clear
  D)
   \[\frac{k}{3{{x}^{3}}}\]
  done clear
  View Answer play_arrow

• question_answer4) Two water pipes of diameters 2 cm and 4 cm are connected with the main supply line. If velocity of flow of water in the pipe of 4 cm diameter is X, then velocity in 2 cm diameter is
  A)
   \[2\,X\]
  done clear
  B)
   \[4\,X\]
  done clear
  C)
   \[6\,X\]
  done clear
  D)
   \[8\,X\]
  done clear
  View Answer play_arrow

• question_answer5) Water rises to a height h in a capillary on the surface of the earth in stationary condition. Value of h increases, if this tube is taken
  A)
   on poles
  done clear
  B)
   on sun
  done clear
  C)
   in a lift going upward with acceleration
  done clear
  D)
   in a Sift going downward with acceleration
  done clear
  View Answer play_arrow

• question_answer6) Two sound waves having a phase difference of\[{{60}^{o}}\], have a path difference of
  A)
   \[\frac{\lambda }{3}\]                  
  done clear
  B)
   \[\frac{\lambda }{6}\]
  done clear
  C)
   \[\frac{\lambda }{9}\]                  
  done clear
  D)
   \[\lambda \]
  done clear
  View Answer play_arrow

• question_answer7) Propagation of sound waves in air is an example of
  A)
   isothermal process
  done clear
  B)
   isobaric process
  done clear
  C)
   adiabatic process
  done clear
  D)
   isochoric process
  done clear
  View Answer play_arrow

• question_answer8) A small laboratory telescope has an objective lens of focal length 140 cm and an eye-piece of focal length 6 cm. Then, separation between the objective and eye-piece is
  A)
   140 cm           
  done clear
  B)
   24 cm
  done clear
  C)
   156 cm           
  done clear
  D)
   146 cm
  done clear
  View Answer play_arrow

• question_answer9) The ratio of the peak current through the capacitor and supply is known as
  A)
   resonance current
  done clear
  B)
   dynamic resistance
  done clear
  C)
   Q- factor
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer10) For the given circuit diagram, the equivalent resistance across battery is
  A)
   \[5\,\,\Omega \]               
  done clear
  B)
   \[10\,\,\Omega \]
  done clear
  C)
   \[20\,\Omega \]
  done clear
  D)
   \[15\,\,\Omega \]
  done clear
  View Answer play_arrow

• question_answer11) The specific resistance of a wire is \[\rho \], its volume is \[3{{m}^{3}}\] and its resistance is \[3\,\,\Omega \], then its length will be
  A)
   \[\frac{3}{\sqrt{\rho }}\]                  
  done clear
  B)
   \[\frac{\sqrt{3}}{\rho }\]
  done clear
  C)
   \[\frac{5}{\sqrt{\rho }}\]                   
  done clear
  D)
   \[\frac{\sqrt{5}}{\rho }\]
  done clear
  View Answer play_arrow

• question_answer12) A radio transmitter radiates 1 kW power at a wavelength 198.6 m. How many photons does it emit per second?
  A)
   \[{{10}^{10}}\]
  done clear
  B)
   \[{{10}^{20}}\]
  done clear
  C)
   \[{{10}^{30}}\]
  done clear
  D)
   \[{{10}^{40}}\]
  done clear
  View Answer play_arrow

• question_answer13) For an L-R circuit, the inductive reactance is equal to the resistance R of the circuit. An emf \[E={{E}_{0}}\cos \,\,(\omega \,t)\] is applied to the circuit. Then, the power consumed in the circuit is
  A)
   \[\frac{{{E}_{0}}}{R}\]
  done clear
  B)
   \[\frac{E_{0}^{2}}{4R}\]
  done clear
  C)
   \[\frac{4R}{{{E}_{0}}}\]                  
  done clear
  D)
   \[\frac{R}{{{E}_{0}}}\]
  done clear
  View Answer play_arrow

• question_answer14) The following truth table corresponds to the logic gate

  A	B	Y
  0	0	0
  0	1	1
  1	0	1
  1	1	1

  A)
   NAND
  done clear
  B)
   AND   
  done clear
  C)
   XOR   
  done clear
  D)
   OR
  done clear
  View Answer play_arrow

• question_answer15) The corresponding truth table for the function Z of X and Y represented by given figure is
  A)
    
  done clear
  B)
    
  done clear
  C)
   
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer16) Thermal conductivity of a material in CGS system is 0.4. In steady state, the rate of flow of heat is 10\[cal/s-c{{m}^{2}}\]. The thermal gradient will be
  A)
   \[{{5}^{o}}C/cm\]            
  done clear
  B)
   \[{{15}^{o}}C/cm\]
  done clear
  C)
   \[{{25}^{o}}C/cm\]           
  done clear
  D)
   \[{{50}^{o}}C/cm\]
  done clear
  View Answer play_arrow

• question_answer17) Shape of graph between speed and kinetic energy of the body is
  A)
   hyperbola           
  done clear
  B)
   straight line
  done clear
  C)
   parabola            
  done clear
  D)
   circle
  done clear
  View Answer play_arrow

• question_answer18) For a common emitter circuit amplifier, the load resistance of the output circuit is 500 times the resistance of the input circuit. If \[\alpha =0.98\], then, current gain is
  A)
   0.98   
  done clear
  B)
   50      
  done clear
  C)
   98       
  done clear
  D)
   49
  done clear
  View Answer play_arrow

• question_answer19) A water pump of power 2kW is installed in a home. Then, the amount of water (in litres) it can raise in one minute to a height of 10m is [Take \[g=10\,m/{{s}^{2}}\]]
  A)
   200L            
  done clear
  B)
   1200L
  done clear
  C)
   800L            
  done clear
  D)
   350L
  done clear
  View Answer play_arrow

• question_answer20) For the given circuit of p-n junction, the potential barrier is
  A)
   raised             
  done clear
  B)
   lowered
  done clear
  C)
   remains same      
  done clear
  D)
   data insufficient
  done clear
  View Answer play_arrow

• question_answer21) A man fires a large number of bullets in all directions with same speed \[\upsilon \]. The maximum area on the ground on which these bullets will spread is
  A)
   \[\frac{\pi {{v}^{2}}}{g}\]
  done clear
  B)
   \[\frac{{{v}^{2}}}{{{g}^{2}}}\]     
  done clear
  C)
   \[\frac{\pi {{v}^{4}}}{{{g}^{2}}}\]    
  done clear
  D)
   \[\frac{{{v}^{4}}}{{{g}^{2}}}\]
  done clear
  View Answer play_arrow

• question_answer22) Shaft of a motor rotates at a constant angular velocity of3000rpm. The radians it has turned through in 1 s is
  A)
   \[\pi \]               
  done clear
  B)
   \[10\,\,\pi \]
  done clear
  C)
   \[50\,\,\pi \]
  done clear
  D)
   \[100\,\,\pi \]
  done clear
  View Answer play_arrow

• question_answer23) Motion of planets in solar system is an example of conservation of
  A)
   momentum        
  done clear
  B)
   velocity
  done clear
  C)
   angular momentum
  done clear
  D)
   energy
  done clear
  View Answer play_arrow

• question_answer24) The radii of two planets are respectively \[{{R}_{1}}\] and \[{{R}_{2}}\] and their densities are \[{{\rho }_{1}}\] and \[{{\rho }_{2}}\]. Ratio of the accelerations due to gravity at their surfaces is
  A)
   \[\frac{{{R}_{1}}}{{{R}_{2}}}.\frac{{{\rho }_{1}}}{{{\rho }_{2}}}\]
  done clear
  B)
   \[\frac{{{R}_{2}}}{{{R}_{1}}}.\frac{\rho _{1}^{2}}{{{\rho }_{2}}}\]
  done clear
  C)
   \[\frac{{{R}_{1}}}{{{R}_{2}}}.\frac{{{\rho }_{2}}}{\rho _{1}^{2}}\]
  done clear
  D)
   1 : 1
  done clear
  View Answer play_arrow

• question_answer25) A tank is filled with water. There is a hole in the bottom. At the bottom total pressure is 3 aim (1 aim\[={{10}^{5}}N/{{m}^{2}}\]), then, the velocity of water flowing from hole is
  A)
   10 m/s            
  done clear
  B)
   20 m/s
  done clear
  C)
   15 m/s            
  done clear
  D)
   25 m/s
  done clear
  View Answer play_arrow

• question_answer26) A horizontal overhead power line carries a current of 90A in east to west direction. Magnitude of magnetic field due to the current 1.5 m below the line is
  A)
   \[1.2\,T\]            
  done clear
  B)
   \[1.2\,\times {{10}^{-10}}T\]
  done clear
  C)
   \[0T\]              
  done clear
  D)
   \[1.2\times {{10}^{-5}}T\]
  done clear
  View Answer play_arrow

• question_answer27) Find the difference of air pressure between the inside and outside of a soap bubble 5 mm in diameter, if the surface tension is 1.6 N/m.
  A)
   2560 \[N/{{m}^{2}}\]       
  done clear
  B)
   3720 \[N/{{m}^{2}}\]
  done clear
  C)
   1208 \[N/{{m}^{2}}\]        
  done clear
  D)
   950 \[N/{{m}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer28) Impulse of a force is equal to the change in
  A)
   mass             
  done clear
  B)
   velocity
  done clear
  C)
   momentum        
  done clear
  D)
   energy
  done clear
  View Answer play_arrow

• question_answer29) A particle moves through angular displacement \[\theta \] on a circular path of radius r. The linear displacement will be
  A)
   \[2\,\,r\sin \left( \frac{\theta }{2} \right)\]     
  done clear
  B)
   \[2\,\,r\cos \left( \frac{\theta }{2} \right)\]
  done clear
  C)
   \[2\,\,r\tan \left( \frac{\theta }{2} \right)\]        
  done clear
  D)
   \[2\,\,r\cot \left( \frac{\theta }{2} \right)\]
  done clear
  View Answer play_arrow

• question_answer30) An electron and a photon have equal energy\[{{E}_{K}}\]. Then, the ratio of wavelengths of photon and electron is \[\left( \frac{{{\lambda }_{photon}}}{{{\lambda }_{electron}}} \right)\]
  A)
   \[\frac{\sqrt{{{E}_{K}}}}{2}\]
  done clear
  B)
   \[\frac{1}{\sqrt{2{{E}_{K}}}}\]
  done clear
  C)
   \[\frac{1}{\sqrt{{{E}_{K}}}}\]
  done clear
  D)
   \[\frac{\sqrt{3{{E}_{K}}}}{2}\]
  done clear
  View Answer play_arrow

• question_answer31) In a transistor, forward bias is always smaller than the reverse bias. This is done to
  A)
   maintain constant current supply
  done clear
  B)
   get good output
  done clear
  C)
   avoid excessive heating of transistor
  done clear
  D)
   maintain flow of majority charge carriers
  done clear
  View Answer play_arrow

• question_answer32) Light with an energy flux of 18 \[W/c{{m}^{2}}\] falls on a non-reflecting surface at normal incidence. The surface has an area of 20 \[c{{m}^{2}}\], then the total momentum delivered on the surface during a span of 30 min is
  A)
   \[2.16\times {{10}^{-3}}kg-m/s\]
  done clear
  B)
   \[1.52\times {{10}^{-5}}kg-m/s\]
  done clear
  C)
   \[8.31\times {{10}^{-8}}kg-m/s\]  
  done clear
  D)
   \[18.2\times {{10}^{-6}}kg-m/s\]
  done clear
  View Answer play_arrow

• question_answer33) The Youngs modulus of a wire of length L and radius r is \[Y\,N/{{m}^{2}}\]. The length and radius are reduced to \[\frac{L}{6}\] and \[\frac{r}{6}\], then its Youngs modulus is
  A)
   6 Y               
  done clear
  B)
   \[\frac{Y}{6}\]
  done clear
  C)
   Y                     
  done clear
  D)
   3Y
  done clear
  View Answer play_arrow

• question_answer34) In a circular coil (1) of radius R, current I is flowing and in another coil (2) of radius 2R a current \[2I\] is flowing, then the ratio of the magnetic fields produced by the two coils is
  A)
   1 : 1                
  done clear
  B)
   1 : 2
  done clear
  C)
   2 : 1                 
  done clear
  D)
   3 : 1
  done clear
  View Answer play_arrow

• question_answer35) Which of the following statement is true for relative magnetic permeability?
  A)
   It is dimensionless
  done clear
  B)
   It is unit less
  done clear
  C)
   Its value is greater than 1000 for iron
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer36) When the self-inductance of the primary and secondary coil is doubled, then the mutual inductance of the two coils is
  A)
   halved
  done clear
  B)
   doubled
  done clear
  C)
   quadrupled
  done clear
  D)
   reduced to one-fourth
  done clear
  View Answer play_arrow

• question_answer37) In a semiconductor diode, the forward voltage is changed from 0.5 V to 0.7 V, then the forward current changes by 1mA. The forward resistance of the diode junction is
  A)
   \[100\,\,\Omega \]
  done clear
  B)
   \[50\,\,\Omega \]
  done clear
  C)
   \[200\,\,\Omega \]
  done clear
  D)
   \[250\,\,\Omega \]
  done clear
  View Answer play_arrow

• question_answer38) Moment of inertia of wheel about the axis of rotation is 3 MKS units. Its kinetic energy will be 600 J, if period of rotation is (in seconds)
  A)
   \[\pi \]                   
  done clear
  B)
   \[\frac{\pi }{5}\]
  done clear
  C)
   \[\frac{\pi }{10}\]               
  done clear
  D)
   \[2\pi \]
  done clear
  View Answer play_arrow

• question_answer39) A galvanometer has a coil resistance of 100 Q. It gives a full scale deflection when a current of 1mA is passed through it. The value of resistance which can convert the galvanometer into an ammeter giving full scale deflection for a current of 10 A is
  A)
    \[{{10}^{-4}}\,\Omega \]
  done clear
  B)
   \[{{10}^{-2}}\,\Omega \]
  done clear
  C)
   \[{{10}^{4}}\,\Omega \]
  done clear
  D)
   \[{{10}^{2}}\,\Omega \]
  done clear
  View Answer play_arrow

• question_answer40) A siren emits sound of frequency 1000 Hz, it moves away from the observer towards a cliff with a speed of \[10\,\,m{{s}^{-1}}\]. Then, the frequency of sound heard by observer coming directly from the siren is
  A)
   less than 1000 Hz
  done clear
  B)
   greater than 1000 Hz
  done clear
  C)
   equal to 1000 Hz
  done clear
  D)
   no sound is heard
  done clear
  View Answer play_arrow

• question_answer41) One surface of a lens is convex and the other is concave. If the radii of curvatures are \[{{R}_{1}}\] and \[{{R}_{2}}\] then the lens will be convex, if
  A)
   \[{{R}_{1}}<{{R}_{2}}\]
  done clear
  B)
   \[{{R}_{1}}>{{R}_{2}}\]
  done clear
  C)
   \[{{R}_{1}}={{R}_{2}}\]           
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer42) A convex mirror of radius of curvature 1.6 m has an object placed at a distance of 1m from it. The image is formed at a distance of
  A)
   \[\frac{18}{3}\]m behind the mirror
  done clear
  B)
   \[\frac{18}{3}\] m infront of the mirror
  done clear
  C)
   \[\frac{4}{9}\]m behind the mirror
  done clear
  D)
   \[\frac{4}{9}\]m infront of the mirror
  done clear
  View Answer play_arrow

• question_answer43) When a radioactive isotope \[_{88}{{R}^{228}}\] decays in series by the emission of \[3\alpha \]-particles and \[\beta \]-particles, the mass number of the isotope finally formed is
  A)
   83                
  done clear
  B)
   72
  done clear
  C)
   216             
  done clear
  D)
   228
  done clear
  View Answer play_arrow

• question_answer44) As shown in the experimental setup, two cells with the same emf E and different internal resistance \[{{r}_{1}}\] and \[{{r}_{2}}\] are connected in series to an external resistance R Value of R so that the potential difference across the first cell be zero; is
  A)
   \[{{r}_{1}}+{{r}_{2}}\] 
  done clear
  B)
   \[\frac{{{r}_{1}}}{{{r}_{2}}}\]      
  done clear
  C)
    \[{{r}_{1}}-{{r}_{2}}\]
  done clear
  D)
   \[{{r}_{1}}\,\,{{r}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer45) Two radioactive sources X and Y of half lives 1 h and 2 h respectively initially contain the same number of radioactive atoms. At the end of 2 h, their rates of disintegration are in the ratio of
  A)
   4 : 3  
  done clear
  B)
   3 : 4    
  done clear
  C)
   1 : 2    
  done clear
  D)
   2 : 1
  done clear
  View Answer play_arrow

• question_answer46) A photon will have less energy, if its
  A)
   wavelength is longer
  done clear
  B)
   wavelength is shorter
  done clear
  C)
   amplitude is less    
  done clear
  D)
   data insufficient
  done clear
  View Answer play_arrow

• question_answer47) The current gain of a transistor in a common base arrangement is 0.98. The change in collector current corresponding to a change of 5 mA in emitter current is
  A)
   0.1 mA            
  done clear
  B)
   0.2 mA
  done clear
  C)
   4.9 mA            
  done clear
  D)
   9.2 mA
  done clear
  View Answer play_arrow

• question_answer48) A plano-convex lens has a curved surface of radius of curvature R and refractive index \[\mu \]. If  its plane surface is silvered, then, it behaves as a
  A)
   convex lens        
  done clear
  B)
   convex mirror
  done clear
  C)
   concave lens       
  done clear
  D)
   concave mirror
  done clear
  View Answer play_arrow

• question_answer49) An electric bulb is made of tungsten filament of resistance \[R\,\,\Omega \]. It is marked 100W and 230 V. Then, the value of R is
  A)
   \[300\,\,\Omega \]
  done clear
  B)
   \[529\,\,\Omega \]   
  done clear
  C)
   \[739\,\,\Omega \]   
  done clear
  D)
   \[100\,\,\Omega \]
  done clear
  View Answer play_arrow

• question_answer50) Which of the following are the properties of fuse, wire?
  A)
   Made of alloy of tin 
  done clear
  B)
   Has a low melting point
  done clear
  C)
   Connected in series with main supply
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer51) The site of action of insulin is
  A)
   mitochondria      
  done clear
  B)
   nucleus
  done clear
  C)
   plasma membrane  
  done clear
  D)
   DNA
  done clear
  View Answer play_arrow

• question_answer52) The wave number of the spectral line in the emission spectrum of hydrogen will be equal to \[\frac{8}{9}\] times the Rydbergs constant if the electron jumps from
  A)
   \[n=3\] to \[n=1\]
  done clear
  B)
   \[n=10\] to \[n=1\]
  done clear
  C)
   \[n=9\] to \[n=1\]      
  done clear
  D)
   \[n=2\] to \[n=1\]
  done clear
  View Answer play_arrow

• question_answer53) Which one of the following is an artificial sweetening agent?
  A)
   
  done clear
  B)
    
  done clear
  C)
    
  done clear
  D)
   \[H{{O}_{2}}C-C{{H}_{2}}-\underset{\begin{smallmatrix}  | \\  N{{H}_{2}} \end{smallmatrix}}{\mathop{C}}\,H-\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{C}}\,-\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\mathop{N}}\,-\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}\,H-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-\underset{\begin{smallmatrix}  | \\  N \end{smallmatrix}}{\mathop{N}}\,\]  
  done clear
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• question_answer54) Nitrobenzene on reduction using zinc in alkaline medium results in X. The number of sigma [a] and pi [n] bonds in X is
  A)
   \[24\sigma ,\,7\pi \]          
  done clear
  B)
   \[24\sigma ,\,6\pi \]
  done clear
  C)
   \[27\sigma ,\,7\pi \]
  done clear
  D)
   \[27\sigma ,\,6\pi \]
  done clear
  View Answer play_arrow

• question_answer55) Peroxide ion............

  (i) has five completely filled antibonding molecular orbitals

  (ii) is diamagnetic

  (iii) has bond order one

  (iv) is isoelectronic with neon

  Which one of these is correct?
  A)
   (ii) and (in)          
  done clear
  B)
   (i), (ii) and (iv)
  done clear
  C)
   (i), (ii) and (iii)       
  done clear
  D)
   (i) and (iv)
  done clear
  View Answer play_arrow

• question_answer56) Which one of the following conversions involve change in both hybridisation and shape?
  A)
   \[C{{H}_{4}}\xrightarrow{{}}{{C}_{2}}{{H}_{6}}\]   
  done clear
  B)
   \[N{{H}_{3}}\xrightarrow{{}}NH_{4}^{+}\]
  done clear
  C)
   \[B{{F}_{3}}\xrightarrow{{}}BF_{4}^{-}\]    
  done clear
  D)
   \[{{H}_{2}}O\xrightarrow{{}}{{H}_{3}}{{O}^{+}}\]
  done clear
  View Answer play_arrow

• question_answer57) In chromite ore, the oxidation number of iron, and chromium are respectively
  A)
   +3,+2            
  done clear
  B)
   +3,+6
  done clear
  C)
   +2, + 6            
  done clear
  D)
   +2, + 3
  done clear
  View Answer play_arrow

• question_answer58) Identify A and B in the following reactions
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer59) Compound A \[({{C}_{3}}{{H}_{6}}O)\] undergoes following reactions to form B and C. Identify A, B and C. \[\underset{\begin{smallmatrix}   \\  A \end{smallmatrix}}{\mathop{C\xleftarrow{Zn-Hg/HCl}}}\,\underset{B}{\mathop{{{C}_{3}}\underset{A}{\mathop{{{H}_{6}}}}\,O}}\,\underset{\begin{smallmatrix}   \\  C \end{smallmatrix}}{\mathop{\xrightarrow{{{I}_{2}}/NaOH}V}}\,\]
  A)
   \[{{H}_{3}}C-\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}CH{{l}_{3}}CH-C{{H}_{2}}-C{{H}_{3}}\]
  done clear
  B)
  \[{{H}_{2}}C=\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{2}}OHC{{H}_{3}}l{{H}_{3}}C-C{{H}_{2}}-C{{H}_{2}}-OH\]
  done clear
  C)
   \[{{H}_{3}}C-C{{H}_{2}}-CHO\,\,\,\,\,CH{{l}_{3}}\,\,\,\,\,{{H}_{3}}C-\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{3}}\]
  done clear
  D)
   \[{{H}_{3}}C-\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\,\,\,\,\,CH{{l}_{3}}\,\,\,\,\,\,{{H}_{3}}C-\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer60) Which one of the following equations represents the variation of viscosity coefficient \[(\eta )\] with temperature (T)?
  A)
   \[\eta =A{{e}^{-E/RT}}\]
  done clear
  B)
   \[\eta =A{{e}^{E/RT}}\]
  done clear
  C)
   \[\eta =A{{e}^{-E/kT}}\]
  done clear
  D)
   \[\eta =A{{e}^{-E/T}}\]
  done clear
  View Answer play_arrow

• question_answer61) Which property among the following is same for both hydrogen and deuterium molecules?
  A)
   Bond energy        
  done clear
  B)
   Melting point
  done clear
  C)
   Boiling point       
  done clear
  D)
   Bond length
  done clear
  View Answer play_arrow

• question_answer62) Given that \[dE=TdS-pdV\] and \[H=E+pV\]. Which one of the following relations is true?
  A)
   \[dH=TdS-Vdp\]
  done clear
  B)
   \[dH=SdT+Vdp\]
  done clear
  C)
   \[dH=-SdT-Vdp\]  
  done clear
  D)
   \[dH=dE-pdV\]
  done clear
  View Answer play_arrow

• question_answer63) What is the bond angle in \[Cl{{O}_{2}}(OClO)\]?
  A)
   \[{{90}^{o}}\]   
  done clear
  B)
   \[{{118}^{o}}\]
  done clear
  C)
   \[{{105}^{o}}\]    
  done clear
  D)
   \[{{111}^{o}}\]
  done clear
  View Answer play_arrow

• question_answer64) A system is allowed to move from state A to B following path ACB by absorbing 80 J of heat energy. The work done by the system is 30 J. The work done by the system in reaching state B from A is 10 J through path ADB. Which statements are correct?

  I. Increase in internal energy from state A to state B is 50 J.

  II. If path ADB is followed to reach state B,\[\Delta E=50\,J\].

  III. If work done by the system in path AB is 20 J, the heat absorbed during path AB = 70 J.

  IV. The value \[{{E}_{C}}-{{E}_{A}}\] is equal to \[{{E}_{D}}-{{E}_{B}}\].

  V. Heat absorbed by the system to reach B from A through path ADB is 60 J.

  
  A)
   l, V                 
  done clear
  B)
   l, III, V
  done clear
  C)
   I, II. Ill, V            
  done clear
  D)
   l, IV, V
  done clear
  View Answer play_arrow

• question_answer65) Identify the order in which the spin only magnetic moment (in BM) increases for the following four ions

  I. \[F{{e}^{2+}}\]

  II. \[T{{i}^{2+}}\]

  III. \[C{{u}^{2+}}\]

  IV. \[{{V}^{2+}}\]

  A)
   I. II, IV, III
  done clear
  B)
   IV, 1. II, III -
  done clear
  C)
   III. IV, I, II
  done clear
  D)
   lll, II, IV, I
  done clear
  View Answer play_arrow

• question_answer66) Which one of the following statements is not correct?
  A)
   Moissan boron is amorphous
  done clear
  B)
   The reaction between boron and concentrated \[HN{{O}_{3}}\] gives \[{{N}_{2}}O\]
  done clear
  C)
   Amorphous boron on heating with oxygen forms \[{{B}_{2}}{{O}_{3}}\]
  done clear
  D)
   Boron is a non-conductor of electricity
  done clear
  View Answer play_arrow

• question_answer67) In photoelectric effect, if the energy required to overcome the attractive forces on the electron, (work functions) of Li, Na and Rb are 2.41 eV, 2.30 eV and 2.09 eV respectively, the work function of K could approximately be in eV.
  A)
   2.52             
  done clear
  B)
   2.20
  done clear
  C)
   2.35
  done clear
  D)
   2.01
  done clear
  View Answer play_arrow

• question_answer68) The oxoacid of sulphur which contains two sulphur atoms in different oxidation states is
  A)
   pyrosulphurous acid
  done clear
  B)
   hyposulphurous acid
  done clear
  C)
   pyrosulphuric acid
  done clear
  D)
   persulphuric acid
  done clear
  View Answer play_arrow

• question_answer69) The correct sequence of reactions to convert p-nitrophenol into quinol involves
  A)
   reduction, diazotization and hydrolysis
  done clear
  B)
   hydrolysis, diazotization and reduction
  done clear
  C)
   hydrolysis, reduction and diazotization
  done clear
  D)
   diazotization, reduction and hydrolysis
  done clear
  View Answer play_arrow

• question_answer70) The compound obtained when acetaldehyde reacts with dilute aqueous sodium hydroxide exhibits
  A)
   geometrical isomerism
  done clear
  B)
   optical isomerism
  done clear
  C)
   neither optical nor geometrical isomerism
  done clear
  D)
   both optical and geometrical isomerism
  done clear
  View Answer play_arrow

• question_answer71) An oxygen containing organic compound upon oxidation forms a carboxylic acid as the only organic product with its molecular mass higher by 14 units. The organic compound is
  A)
   an aldehyde       
  done clear
  B)
   a primary alcohol
  done clear
  C)
   a secondary alcohol
  done clear
  D)
   acetone
  done clear
  View Answer play_arrow

• question_answer72) A buffer solution contains 0.1 mole of sodium acetate in \[1000\,\,c{{m}^{3}}\] of 0.1 M acetic acid. To the above buffer solution, 0.1 mole of sodium acetate is further added and dissolved. The pH of the resulting buffer is equal to
  A)
   \[p{{K}_{a}}-\log 2\]
  done clear
  B)
   \[p{{K}_{a}}\]
  done clear
  C)
   \[p{{K}_{a}}+2\]
  done clear
  D)
   \[p{{K}_{a}}+\log 2\]
  done clear
  View Answer play_arrow

• question_answer73) Which one of the following is wrongly matched?
  A)
   \[{{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}}\] - Square planar
  done clear
  B)
   \[[Ni{{(CO)}_{4}}]\] - Neutral ligand
  done clear
  C)
   \[[Fe(CN)_{6}^{3-}]\] - \[s{{p}^{3}}{{d}^{2}}\]
  done clear
  D)
   \[{{[Co{{(en)}_{3}}]}^{3+}}\] - Follows EAN rule
  done clear
  View Answer play_arrow

• question_answer74) The activation energy for a reaction at the temperature T K was found to be\[2.303\,\,RT\,\,J\,mo{{l}^{-1}}\]. The ratio of the rate constant to Arrhenius factor is
  A)
   \[{{10}^{-1}}\]
  done clear
  B)
   \[{{10}^{-2}}\]
  done clear
  C)
   \[2\times {{10}^{-3}}\]
  done clear
  D)
   \[2\times {{10}^{-2}}\]
  done clear
  View Answer play_arrow

• question_answer75) Match the following

  	Column - I		Column - II
  [a]	Potential of hydrogen electrode at pH = 10	(i)	0.76 V
  [b]	\[C{{u}^{2+}}\left| Cu \right.\]	(ii)	0.059
  [c]	\[Zn\left| Z{{n}^{2+}} \right.\]	(iii)	-0.591V
  [d]	\[\frac{2.303\,\,RT}{F}\]	(iv)	0.337 V
  		(v)	-0.76V

  A)
     A- (III)     B-(I)       C-(II)       D- (V)
  done clear
  B)
     A-(II)     B- (V)     C-(I)       D-(IV)
  done clear
  C)
     A-(III)      B-(IV)     C-(I)        D-(II)
  done clear
  D)
     A- (V)     B-(I)        C-(IV)     D-(II)
  done clear
  View Answer play_arrow

• question_answer76) The formal charges of \[{{N}_{(1)}},\,{{N}_{(2)}}\] and O atoms in\[_{\bullet }^{\bullet }\overset{\bullet \,\bullet }{\mathop{\underset{1}{\mathop{N}}\,}}\,=\underset{2}{\mathop{N}}\,=\overset{\bullet \bullet }{\mathop{O}}\,_{\bullet }^{\bullet }\] are respectively
  A)
   +1,-1. 0
  done clear
  B)
   -1,+1, 0
  done clear
  C)
   +1,+1.0
  done clear
  D)
   -1.-1,0 .   
  done clear
  View Answer play_arrow

• question_answer77) 1 g of silver gets distributed between \[10\,\,c{{m}^{3}}\] of molten zinc and \[100\,\,c{{m}^{3}}\] of molten lead at\[{{800}^{o}}C\]. The percentage of silver in the zinc layer is approximately
  A)
   89     
  done clear
  B)
   91       
  done clear
  C)
   97      
  done clear
  D)
   94
  done clear
  View Answer play_arrow

• question_answer78) Carbon can reduce ferric oxide to iron at a temperature above 983 K because
  A)
   carbon monoxide formed is thermodynamically less stable than ferric oxide
  done clear
  B)
   carbon has a higher affinity towards oxidation than iron
  done clear
  C)
   free energy change for the formation of carbon dioxide is less negative than that for ferric oxide
  done clear
  D)
   iron has a higher affinity towards oxygen than carbon
  done clear
  View Answer play_arrow

• question_answer79) Which one of the following is the ratio of the lowering of vapour pressure of 0.1 M aqueous solutions of \[BaC{{l}_{2}},\,\,NaCl\] and \[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\] respectively?
  A)
   3 : 2; 5
  done clear
  B)
   5 : 2 : 3
  done clear
  C)
   5 : 3 : 2
  done clear
  D)
   2 : 3 : 5
  done clear
  View Answer play_arrow

• question_answer80) In which one of the following, does the given amount of chlorine exert the least pressure in a vessel of capacity \[1\,\,d{{m}^{3}}\] at 273 K?
  A)
   0.0355 g            
  done clear
  B)
   0.071 g
  done clear
  C)
   \[6.023\times {{10}^{21}}\] molecules
  done clear
  D)
   0.02 mol
  done clear
  View Answer play_arrow

• question_answer81) 19 g of a mixture containing \[NaHC{{O}_{3}}\] and \[NaC{{O}_{3}}\] on complete heating liberated 1.12 L of \[C{{O}_{2}}\] at STP. The weight of the remaining solid was 15.9 g. What is the weight (in g) of \[N{{a}_{2}}C{{O}_{3}}\] in the mixture before heating?
  A)
  8.4    
  done clear
  B)
  15.9
  done clear
  C)
  4.0      
  done clear
  D)
  10.6
  done clear
  View Answer play_arrow

• question_answer82) Match the following

  	Column - I		Column - II
  [a]	Acetaldehyde, vinyl alcohol	1.	Enantiomers
  [b]	Eclipsed and staggered ethane	2.	Tautomers
  [c]	(+)2-butanol, (-)2-butanol	3.	Chain isomers
  [d]	Methyl-n-propylamine and diethylamine	4.	Conformational isomers
  		5.	Metamers

   
  A)
       A-1      B-4      C-3       D-5
  done clear
  B)
       A-2      B-4      C-1       D-5
  done clear
  C)
       A-5      B-1       C-4        D-2
  done clear
  D)
        A-5     B-1      C-3       D-2
  done clear
  View Answer play_arrow

• question_answer83) With respect to chlorobenzene, which of the following statements is not correct?
  A)
   \[Cl\] is ortho/para directing
  done clear
  B)
   \[Cl\] exhibits +M effect
  done clear
  C)
   \[Cl\] is ring deactivating
  done clear
  D)
   \[Cl\] is meta directing
  done clear
  View Answer play_arrow

• question_answer84) The product(s) formed when \[{{H}_{2}}{{O}_{2}}\] reacts with disodium hydrogen phosphate is
  A)
   \[{{P}_{2}}{{O}_{5}}\,\,.\,N{{a}_{3}}P{{O}_{4}}\]
  done clear
  B)
   \[N{{a}_{2}}HP{{O}_{5}}\,\,.\,{{H}_{2}}{{O}_{2}}\]
  done clear
  C)
   \[Na{{H}_{2}}P{{O}_{4}},\,\,\,{{H}_{2}}O\]
  done clear
  D)
   \[N{{a}_{2}}HP{{O}_{4}}\,\,.\,{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer85) The correct sequence of steps involved in the mechanism of Cannizzaros reaction is
  A)
   nucleophilic attack, transfer of \[{{H}^{-}}\] and transfer of \[{{H}^{+}}\]
  done clear
  B)
   transfer of \[{{H}^{-}}\], transfer of \[{{H}^{+}}\] and nucleophiiic attack
  done clear
  C)
   transfer of\[{{H}^{+}}\], nucleophilic attack and transfer of\[{{H}^{-}}\]
  done clear
  D)
   electrophilic attack by \[O{{H}^{-}}\], transfer of \[{{H}^{+}}\] and transfer of \[{{H}^{-}}\]
  done clear
  View Answer play_arrow

• question_answer86) What is Z in the following reactions? \[BC{{l}_{3}}+{{H}_{2}}\xrightarrow[{{450}^{o}}C]{Cu-Al}X+HCl\] \[X\xrightarrow{methylation}Z\]
  A)
   \[(C{{H}_{3}})B{{H}_{2}}\]         
  done clear
  B)
   \[{{(C{{H}_{3}})}_{4}}{{B}_{2}}{{H}_{2}}\]
  done clear
  C)
   \[{{(C{{H}_{3}})}_{3}}{{B}_{2}}{{H}_{3}}\]
  done clear
  D)
   \[{{(C{{H}_{3}})}_{6}}{{B}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer87) The empirical formula of a non-electrolyte is\[C{{H}_{2}}O\]. A solution containing 6g of the compound exerts the same osmotic pressure as that of 0.05 M glucose solution at the same temperature. The molecular formula of the compound is
  A)
   \[{{C}_{2}}{{H}_{4}}{{O}_{2}}\]
  done clear
  B)
   \[{{C}_{3}}{{H}_{6}}{{O}_{3}}\]
  done clear
  C)
   \[{{C}_{5}}{{H}_{10}}{{O}_{5}}\]
  done clear
  D)
   \[{{C}_{4}}{{H}_{8}}{{O}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer88) \[{{E}_{1}},\,{{E}_{2}},\,{{E}_{3}}\] are the emf values of the three galvanic cells respectively. (i) \[Zn|Zn_{1M}^{2+}||Cu_{0.1M}^{2+}|Cu\] (ii) \[Zn|Zn_{1M}^{2+}||Cu_{1M}^{2+}|Cu\] (iii) \[Zn|Zn_{0.1M}^{2+}||Cu_{1M}^{2+}|Cu\] Which one of the following is true?
  A)
   \[{{E}_{2}}>{{E}_{3}}>{{E}_{1}}\]
  done clear
  B)
   \[{{E}_{3}}>{{E}_{2}}>{{E}_{1}}\]
  done clear
  C)
   \[{{E}_{1}}>{{E}_{2}}>{{E}_{3}}\]
  done clear
  D)
   \[{{E}_{1}}>{{E}_{3}}>{{E}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer89) In Kjeldahls method, ammonia from 5 g of food neutralizes \[30\,\,c{{m}^{3}}\] of 0.1 N acid. The percentage of nitrogen in the food is
  A)
   0.84   
  done clear
  B)
   8.4     
  done clear
  C)
   16.8    
  done clear
  D)
   1.68
  done clear
  View Answer play_arrow

• question_answer90) Which one of the following has the most nucleophilic nitrogen?
  A)
   
  done clear
  B)
    
  done clear
  C)
    
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer91) \[C{{H}_{3}}C{{H}_{2}}Br\xrightarrow[\Delta ]{aq.\,\,KOH}A\xrightarrow[\Delta ]{KMn{{O}_{4}}/{{H}^{+}}}\] \[B\xrightarrow[\Delta ]{N{{H}_{3}}}C\xrightarrow[alkali]{B{{r}_{2}}}D,\,\,D\] is
  A)
   \[C{{H}_{3}}Br\]
  done clear
  B)
   \[C{{H}_{3}}CON{{H}_{2}}\]
  done clear
  C)
   \[C{{H}_{3}}N{{H}_{2}}\]
  done clear
  D)
   \[CHB{{r}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer92) The enthalpy changes for the following processes are listed below

  \[C{{l}_{2}}(g)\xrightarrow{{}}2Cl(g),\,\,242.3\,kJ\,\,mo{{l}^{-1}}\]

  \[{{I}_{2}}(g)\xrightarrow{{}}2I(g),\,\,151.0\,\,kJ\,\,mo{{l}^{-1}}\]

  \[ICI(g)\xrightarrow{{}}I(g)+Cl(g),\,211.3\,\,kJ\,\,mo{{l}^{-1}}\]

  \[{{I}_{2}}(s)\xrightarrow{{}}{{I}_{2}}(g),\,\,62.76\,\,kJ\,\,mo{{l}^{-1}}\]

  Given that the standard states for iodine and chlorine are \[{{I}_{2}}(s)\] and \[C{{l}_{2}}(g)\], the standard enthalpy for the formation of \[ICl(g)\] is
  A)
   \[-14.6\,\,kJ\,\,mo{{l}^{-1}}\]
  done clear
  B)
   \[-16.8\,\,kJ\,\,mo{{l}^{-1}}\]
  done clear
  C)
   \[+16.8\,\,kJ\,\,mo{{l}^{-1}}\]
  done clear
  D)
   \[+244.8\,\,kJ\,\,mo{{l}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer93) 2.5 mL of \[\frac{2}{5}\,M\] weak monoacidic base (\[{{K}_{b}}=1\times {{10}^{-12}}\] at \[{{25}^{o}}C\]) is titrated with \[\frac{2}{15}M\,HCl\] in water at \[{{25}^{o}}C\]. The concentration of \[{{H}^{+}}\]at equivalence point is (\[{{K}_{w}}=1\times {{10}^{-14}}\] at \[{{25}^{o}}C\])
  A)
   \[3.7\times {{10}^{-13}}M\]
  done clear
  B)
   \[3.2\times {{10}^{-7}}M\]
  done clear
  C)
   \[3.2\times {{10}^{-2}}M\]
  done clear
  D)
   \[2.7\times {{10}^{-2}}M\]
  done clear
  View Answer play_arrow

• question_answer94) Three reactions involving \[{{H}_{2}}PO_{4}^{-}\] are given below

  I. \[{{H}_{3}}P{{O}_{4}}+{{H}_{2}}O\xrightarrow{{}}{{H}_{3}}{{O}^{+}}+{{H}_{2}}PO_{4}^{-}\]

  II. \[{{H}_{3}}PO_{4}^{-}+{{H}_{2}}O\xrightarrow{{}}HPO_{4}^{2-}+{{H}_{3}}{{O}^{+}}\]

  III. \[{{H}_{3}}PO_{4}^{-}+O{{H}^{-}}\xrightarrow{{}}{{H}_{3}}P{{O}_{4}}+{{O}^{2-}}\]

  In which of the above does \[{{H}_{2}}PO_{4}^{-}\] act as an acid?
  A)
  II only   
  done clear
  B)
  I and II   
  done clear
  C)
  III only   
  done clear
  D)
  I only
  done clear
  View Answer play_arrow

• question_answer95) The correct IUPAC name of tartaric acid is
  A)
   1, 4-dicarboxy-2, 3-dihydroxyethane
  done clear
  B)
   \[\alpha ,\,\,\alpha \]-dihydroxybutane-1, 4-dioic acid
  done clear
  C)
   1, 4-dihydroxybutane-2, 3-dioic acid
  done clear
  D)
   2, 3-dihydroxybutane-1, 4-dioic acid
  done clear
  View Answer play_arrow

• question_answer96) .

  I. \[\phi -\overset{\oplus }{\mathop{\underset{\begin{smallmatrix}  | \\  \phi  \end{smallmatrix}}{\mathop{C}}\,}}\,-\phi \]

  II. \[\phi -\overset{\oplus }{\mathop{C}}\,{{H}_{2}}\]

  III. \[C{{H}_{2}}=CH-\overset{\oplus }{\mathop{C}}\,{{H}_{2}}\]

  IV.

  Correct order of stability is
  A)
   I > IV > II > III      
  done clear
  B)
   I > II > III > IV
  done clear
  C)
   I > II > IV > III         
  done clear
  D)
   I > III > IV > II
  done clear
  View Answer play_arrow

• question_answer97) Match the Column I and II and pick the correct matching from the codes given below.

  	Column - I		Column - II
  [a]	Polycyclic aromatic hydrocarbons	1.	Global warming
  [b]	Dioxins	2.	Photochemical
  [c]	IR active molecules	3.	Carcinogens
  [d]	Peroxy acetyl nitrate Codes	4.	Waste incineration

  A)
        A- 3       B-4         C-1     D-2
  done clear
  B)
          A-4       B-3      C- 2       D-1
  done clear
  C)
         A- 3        B-4      C- 2       D-1
  done clear
  D)
          A-1      B-2         C-3       D-4
  done clear
  View Answer play_arrow

• question_answer98) Consider the following statements.

  I. \[La{{(OH)}_{3}}\] is the least basic among hydroxides of lanthanides.

  II. \[Z{{r}^{4+}}\] and \[H{{f}^{4+}}\] possess almost the same ionic radii.

  III. \[C{{e}^{4+}}\] can act as an oxidising agent.

  Which of the above is/are true?
  A)
   I and III
  done clear
  B)
   II and III
  done clear
  C)
   II only
  done clear
  D)
   I and II
  done clear
  View Answer play_arrow

• question_answer99) Concentrated hydrochloric acid when kept in open air sometimes produces a cloud of white fumes. The explanation for it is that
  A)
   concentrated hydrochloric acid emits strongly smelling \[HCl\] gas all the time
  done clear
  B)
   oxygen in air reacts with the emitted \[HCl\]gas to form a could of chlorine gas
  done clear
  C)
   strong affinity of \[HCl\] gas for moisture in air results in forming of droplets of liquid solution which appears like a cloudy smoke
  done clear
  D)
   due to strong affinity for water, concentrated hydrochloric acid pulls moisture of air towards itself. This moisture forms droplets of water and hence, the cloud.
  done clear
  View Answer play_arrow

• question_answer100)  Compartments A and B have the following combinations solution

  	A	B
  I.	\[0.1\text{ }M\,KCl\]	\[0.2\text{ }M\,KCl\]
  II.	\[~0.1%\,(m/V)\,NaCl\]	\[10%\,(m/V)\,NaCl\]
  III.	\[18\,g{{L}^{-1}}glucose\]	\[34.2\text{ }g{{L}^{-1}}\text{ }sucrose\]
  IV.	\[20%\text{ (}m/V)\,glucose\]	\[10%\text{ (}m/V)\,glucose\]

  Indicate the number of solutions which is/are isotonic
  A)
   I only                 
  done clear
  B)
   III only
  done clear
  C)
   IV only               
  done clear
  D)
   II only
  done clear
  View Answer play_arrow

• question_answer101) Giant chromosomes are found inside
  A)
   nucleus of man
  done clear
  B)
   oocytes of frog
  done clear
  C)
   salivary glands of silk moth
  done clear
  D)
   salivary glands of Drosophila
  done clear
  View Answer play_arrow

• question_answer102) Hormone that promotes cell division, protein synthesis and bone growth is
  A)
   ADH          
  done clear
  B)
     ACTH
  done clear
  C)
   PTH            
  done clear
  D)
   GH
  done clear
  View Answer play_arrow

• question_answer103) Blastula of frog has
  A)
   blastopore          
  done clear
  B)
   blastocoel
  done clear
  C)
   archenteron         
  done clear
  D)
   gastropore
  done clear
  View Answer play_arrow

• question_answer104) Haemocoel is found in
  A)
   Hydra and Aurelia
  done clear
  B)
   Taenia and Ascaris
  done clear
  C)
   Cockroach and Pila
  done clear
  D)
   Balanoglossus and Herdmania
  done clear
  View Answer play_arrow

• question_answer105) The excretory material of bony fish is
  A)
   urea              
  done clear
  B)
   protein
  done clear
  C)
   ammonia       
  done clear
  D)
   amino acid
  done clear
  View Answer play_arrow

• question_answer106) RNA and proteins are formed in
  A)
   \[{{G}_{1}}\]-phase          
  done clear
  B)
   \[{{G}_{2}}\]-phase
  done clear
  C)
   S-phase           
  done clear
  D)
   \[{{G}_{0}}\]-phase
  done clear
  View Answer play_arrow

• question_answer107) Growth promoting hormone is
  A)
   IAA              
  done clear
  B)
   Gibberellin
  done clear
  C)
   2,4-D            
  done clear
  D)
   ABA
  done clear
  View Answer play_arrow

• question_answer108) Transduction in bacteria was discovered by
  A)
   0Zinder and Lederberg
  done clear
  B)
   Wallace and Jacob
  done clear
  C)
   Herelle and Twort
  done clear
  D)
   Lederberg and Tatum
  done clear
  View Answer play_arrow

• question_answer109) Fermentation is
  A)
   anaerobic respiration
  done clear
  B)
   incomplete oxidation of carbohydrate
  done clear
  C)
   complete oxidation of carbohydrate
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer110) Both sickle cell anaemia and Huntingtons chorea are
  A)
   bacteria related diseases
  done clear
  B)
   congenital disorders
  done clear
  C)
   pollutant induced disorders
  done clear
  D)
   virus related diseases
  done clear
  View Answer play_arrow

• question_answer111) In the case of humans, the placenta comprises which of the following?
  A)
   Endothelium of maternal blood capillaries
  done clear
  B)
   Endothelium of foetal blood capillaries
  done clear
  C)
   Foetal epithelium
  done clear
  D)
   Connective tissue surrounding foetal blood capillaries
  done clear
  View Answer play_arrow

• question_answer112) Golgi apparatus is absent in
  A)
   higher plant
  done clear
  B)
   yeast
  done clear
  C)
   bacteria and blue-green algae
  done clear
  D)
   liver cells
  done clear
  View Answer play_arrow

• question_answer113) A chemical substance produced by a microorganism for inhibiting the growth of another is
  A)
   antibody
  done clear
  B)
   antibiotic
  done clear
  C)
   aflatoxin
  done clear
  D)
   antiallergic
  done clear
  View Answer play_arrow

• question_answer114) The largest phase of meiosis-I is
  A)
   prophase-1         
  done clear
  B)
   metaphase-1
  done clear
  C)
   anaphase-1         
  done clear
  D)
   telophase-1
  done clear
  View Answer play_arrow

• question_answer115) Active transport
  A)
   releases energy
  done clear
  B)
   requires energy
  done clear
  C)
   produces ATP                        .
  done clear
  D)
   produces a toxic substance
  done clear
  View Answer play_arrow

• question_answer116) Replication of centriole occurs during
  A)
   interphase          
  done clear
  B)
   prophase
  done clear
  C)
   late prophase       
  done clear
  D)
   late telophase
  done clear
  View Answer play_arrow

• question_answer117) Bowmans glands are found in
  A)
   olfactory epithelium
  done clear
  B)
   external auditory canal
  done clear
  C)
   cortical nephrons only
  done clear
  D)
   juxtamedullary nephrons
  done clear
  View Answer play_arrow

• question_answer118) Theory of pangenesis was given by
  A)
   Darwin            
  done clear
  B)
   Lamarck
  done clear
  C)
   Hugo de Vries      
  done clear
  D)
   Oparin.
  done clear
  View Answer play_arrow

• question_answer119) Which of the following is the most primitive ancestor of man?
  A)
   Homo neanderthalensis
  done clear
  B)
   Homo habilis
  done clear
  C)
   Ramapithecus
  done clear
  D)
   Australopithecus
  done clear
  View Answer play_arrow

• question_answer120) Placenta present in mammals acts as an endocrine tissue and produces
  A)
   human chorionic gonadotropin
  done clear
  B)
   oestrogen
  done clear
  C)
   progesterone
  done clear
  D)
   testosterone
  done clear
  View Answer play_arrow

• question_answer121) Rabbit is
  A)
   carnivore            
  done clear
  B)
   herbivore
  done clear
  C)
   Both [a] and [b]
  done clear
  D)
   sanguirore
  done clear
  View Answer play_arrow

• question_answer122) Which of the following is an algal parasite?
  A)
   Volvox             
  done clear
  B)
   Ulothrix
  done clear
  C)
   Porphyra            
  done clear
  D)
   Cephaleuros
  done clear
  View Answer play_arrow

• question_answer123) Mast cells secrete
  A)
   hippurin           
  done clear
  B)
   myoglobin
  done clear
  C)
   histamine          
  done clear
  D)
   haemoglobin
  done clear
  View Answer play_arrow

• question_answer124) The leucocytes contain which of the following in large quantity?
  A)
   Basophils          
  done clear
  B)
   Neutrophils
  done clear
  C)
   Eosinophils         
  done clear
  D)
   Monocytes
  done clear
  View Answer play_arrow

• question_answer125) People living at sea level have around 5 million RBC per cubic millimetre of their blood whereas those living at an altitude of 5400 m have around 8 million. This is because at high altitude
  A)
   people get pollution free air to breathe and more oxygen is available
  done clear
  B)
   atmospheric oxygen level is less and hence, more RBCs are needed to absorb the required amount 3 of oxygen to survive
  done clear
  C)
   there is more UV radiation which enhances RBC production
  done clear
  D)
   people eat more nutritive food, therefore more RBCs are formed
  done clear
  View Answer play_arrow

• question_answer126) Pneumatophores are present in
  A)
   xerophytes         
  done clear
  B)
   hygrophytes
  done clear
  C)
   mesophytes        
  done clear
  D)
   halophytes
  done clear
  View Answer play_arrow

• question_answer127) DNA element with ability to change its position is called
  A)
   cistron
  done clear
  B)
   transposon
  done clear
  C)
   intron
  done clear
  D)
   recon
  done clear
  View Answer play_arrow

• question_answer128) Which is always present in photochemical smog?
  A)
   \[{{O}_{3}}\]
  done clear
  B)
   \[C{{O}_{2}}\]
  done clear
  C)
   \[S{{O}_{2}}\]
  done clear
  D)
   \[C{{H}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer129) Programmed cell death is scientifically termed as
  A)
   autotomy           
  done clear
  B)
   cell lysis
  done clear
  C)
   apoptosis          
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer130) Which is the major crop in Asia?
  A)
   Rice         
  done clear
  B)
   Sugarcane
  done clear
  C)
   Jowar              
  done clear
  D)
   Millet
  done clear
  View Answer play_arrow

• question_answer131) Areolar connective tissue joins
  A)
   fat body with muscles
  done clear
  B)
   integument with muscles
  done clear
  C)
   bones with muscles
  done clear
  D)
   bones with bones
  done clear
  View Answer play_arrow

• question_answer132) Nerve cell do not divide because they do not have
  A)
   nucleus           
  done clear
  B)
   centrosome
  done clear
  C)
   Golgi body        
  done clear
  D)
   mitochondria
  done clear
  View Answer play_arrow

• question_answer133) Heparin is synthesised in
  A)
   liver                
  done clear
  B)
   kidney
  done clear
  C)
   saliva                
  done clear
  D)
   pancreas
  done clear
  View Answer play_arrow

• question_answer134) B-lymphocytes are
  A)
   formed in bone marrow
  done clear
  B)
   pre-processed in bone marrow
  done clear
  C)
   pre-processed in liver
  done clear
  D)
   formed in thymus
  done clear
  View Answer play_arrow

• question_answer135) Human ancestors, who left cave paintings were
  A)
   Neanderthal man  
  done clear
  B)
   Cro-magnon man
  done clear
  C)
   Java ape man      
  done clear
  D)
   Peking man
  done clear
  View Answer play_arrow

• question_answer136) Which of the following are tiger reserves under the project tiger?
  A)
   Bandipur Wildlife Sanctuary
  done clear
  B)
   Manas Wildlife Sanctuary
  done clear
  C)
   Simlipal Wildlife Sanctuary
  done clear
  D)
   Keibaul Lamjao National Park
  done clear
  View Answer play_arrow

• question_answer137) Which of the following statements are correct?
  A)
   Mitochondria contain its own DNA
  done clear
  B)
   70 S ribosomes occur in eukaryotes
  done clear
  C)
   0Ribosomes are made up of phospholipids and oligosaccharide
  done clear
  D)
   Ribosomes are not found in Protista and Monera
  done clear
  View Answer play_arrow

• question_answer138) Blood is a kind of
  A)
   areolar tissue
  done clear
  B)
   connective tissue
  done clear
  C)
   fluid connective tissue
  done clear
  D)
   reticular connective tissue
  done clear
  View Answer play_arrow

• question_answer139) Correctly matched set of phylum, class and example is
  A)
   Protozoa-Mastigophora-Entamoeba
  done clear
  B)
   Mollusca-Bivalvia-Pinctata
  done clear
  C)
   Arthropoda-Diplopoda-Scolopendra
  done clear
  D)
   Chordata-Cyclostomata-Phrynosoma
  done clear
  View Answer play_arrow

• question_answer140) Menstruation is due to sudden
  A)
   reduction of FSH
  done clear
  B)
   increase of LH
  done clear
  C)
   reduction in estrogen and progesterone
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer141) Largest tiger population is found in
  A)
   Sunderban National Park
  done clear
  B)
   Corbett National Park
  done clear
  C)
   Ranthambhor National Park
  done clear
  D)
   Kanha National Park
  done clear
  View Answer play_arrow

• question_answer142) Which of the following floral parts forms pericarp after fertilization?
  A)
   Nucellus
  done clear
  B)
   Outer integument
  done clear
  C)
   Ovary wall
  done clear
  D)
   Inner integument
  done clear
  View Answer play_arrow

• question_answer143) The thickness of unit membrane is
  A)
   20\[\overset{o}{\mathop{A}}\,\]             
  done clear
  B)
   35 \[\overset{o}{\mathop{A}}\,\]
  done clear
  C)
   55 \[\overset{o}{\mathop{A}}\,\]
  done clear
  D)
   75 \[\overset{o}{\mathop{A}}\,\]
  done clear
  View Answer play_arrow

• question_answer144) Real product of apiculture is
  A)
   honey             
  done clear
  B)
   bee wax
  done clear
  C)
   Both [a] and [b]     
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer145) Which of the following characters is related with telophase?
  A)
   Formation of nuclear membrane
  done clear
  B)
   Formation of nucleolus
  done clear
  C)
   Elongation of chromosome
  done clear
  D)
   Formation of two daughter nuclei
  done clear
  View Answer play_arrow

• question_answer146) The site of photosynthesis in blue-green algae
  A)
   chromatophores   
  done clear
  B)
   mitochondria
  done clear
  C)
   chloroplast     
  done clear
  D)
   root hair
  done clear
  View Answer play_arrow

• question_answer147) Genes exhibiting multiple effects are known as
  A)
   complementary genes
  done clear
  B)
   pleiotropic genes
  done clear
  C)
   cistrons            
  done clear
  D)
   pseudogenes
  done clear
  View Answer play_arrow

• question_answer148) LH in human female is
  A)
   fascilitates luteinisation of granulosa cells of ovulated follicle
  done clear
  B)
   called ovulation hormone
  done clear
  C)
   helps in milk eyection
  done clear
  D)
   activates Leydigs cell to secrete androgen
  done clear
  View Answer play_arrow

• question_answer149) Linkage groups
  A)
   have genes, which were linked together in a single chromosomes
  done clear
  B)
   show independent assortment.
  done clear
  C)
   do not show independent assortment
  done clear
  D)
   in prokaryotes are more than one
  done clear
  View Answer play_arrow

• question_answer150) Glomerular filterate is 
  A)
   formed continuously by the process of ultrafiltration occurring at Malpighian corpuscles, in which the blood cells and the colloidal macromolecules are not allowed to pass across the filtering surface
  done clear
  B)
   the lipid free fluid collected within the human of Bowmans capsule
  done clear
  C)
   the protein free fluid collects within the lumen of Bowmans capsule
  done clear
  D)
   Formed by the process of selective reabsorption
  done clear
  View Answer play_arrow