Solved papers for BCECE Medical BCECE Medical Solved Papers-2015

done BCECE Medical Solved Papers-2015 Total Questions - 150

• question_answer1) A ball is thrown from the ground to clear a wall 3 m high at a distance of 6 m and falls 18 m away from the wall, the angle of projection of ball is
  A)
  \[{{\tan }^{-1}}\left( \frac{3}{2} \right)\]
  done clear
  B)
  \[{{\tan }^{-1}}\left( \frac{2}{3} \right)\]
  done clear
  C)
   \[{{\tan }^{-1}}\left( \frac{1}{2} \right)\]
  done clear
  D)
   \[{{\tan }^{-1}}\left( \frac{3}{4} \right)\]
  done clear
  View Answer play_arrow

• question_answer2) Consider if the electric flux entering and leaving an enclosed surface respectively are \[{{\phi }_{1}}\] and \[{{\phi }_{2}}\], the electric charge inside the surface will be
  A)
   \[{{\varepsilon }_{0}}({{\phi }_{1}}+{{\phi }_{2}})\]        
  done clear
  B)
   \[\frac{{{\phi }_{2}}+{{\phi }_{1}}}{{{\varepsilon }_{0}}}\]
  done clear
  C)
   \[\frac{{{\phi }_{1}}-{{\phi }_{2}}}{{{\varepsilon }_{0}}}\]
  done clear
  D)
   \[\frac{{{\phi }_{1}}+{{\phi }_{2}}}{{{\varepsilon }_{0}}}\]
  done clear
  View Answer play_arrow

• question_answer3) If the escape speed of a projectile on Earths surface is 11.2 \[km{{s}^{-1}}\] and a body is projected out with thrice this speed, then determine the speed of the body far away from the Earth.
  A)
   56.63 \[km{{s}^{-1}}\]        
  done clear
  B)
   33 \[km{{s}^{-1}}\]
  done clear
  C)
   39 \[km{{s}^{-1}}\]    
  done clear
  D)
   31.7 \[km{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer4) Determine the potential drop between the points A and C in the following circuit. Resistances \[1\,\,\Omega \] and \[2\,\,\Omega \] are representing the internal resistances of the respective cells.
  A)
   \[\frac{4}{5}V\]    
  done clear
  B)
   1.75 V  
  done clear
  C)
   2.25 V  
  done clear
  D)
   5 V
  done clear
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• question_answer5) A tank is filled with a liquid upto a height H. A small hole is made at the bottom of this tank. Consider \[{{t}_{1}}\] be the time taken to empty first half of the tank and \[{{t}_{2}}\] be the time taken to empty rest half of the tank. Then, determine the ratio \[\frac{{{t}_{1}}}{{{t}_{2}}}\].
  A)
   1.33                
  done clear
  B)
   1.5
  done clear
  C)
   2                  
  done clear
  D)
   0.414
  done clear
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• question_answer6) An electron and a proton enter a magnetic field perpendicularly both have same kinetic energy. Which of the following statements are true?
  A)
   Trajectory of proton is less curved
  done clear
  B)
   Trajectory of electron is less curved
  done clear
  C)
   Both trajectories are equally curved
  done clear
  D)
   Both move on straight line path
  done clear
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• question_answer7) The coefficient of volume expansion of glycerine is \[49\times {{10}^{-5}}{{K}^{-1}}\]. What is the fractional change in its density for a \[{{30}^{o}}C\] rise in temperature?
  A)
   \[1.5\times {{10}^{-2}}\]         
  done clear
  B)
   \[2\times {{10}^{-4}}\]
  done clear
  C)
   \[3.5\times {{10}^{-3}}\]         
  done clear
  D)
   \[2.5\times {{10}^{-2}}\]
  done clear
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• question_answer8) If a conducting rod of length 4 \[l\] is rotated about at point O in a uniform magnetzic field B directed into the paper and \[DE=l,\,EA=3l\], then
  A)
   \[{{v}_{A}}-{{v}_{E}}=\frac{9}{2}B\omega \,{{i}^{2}}\]
  done clear
  B)
   \[{{v}_{E}}-{{v}_{A}}=\frac{9}{2}B\omega \,{{i}^{2}}\]
  done clear
  C)
   \[{{v}_{D}}-{{v}_{E}}=\frac{B\omega \,{{i}^{2}}}{2}\]
  done clear
  D)
   \[{{v}_{A}}-{{v}_{E}}=4B\omega \,{{i}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer9) An open organ pipe has a fundamental frequency of 300 Hz. The first overtone of a closed organ pipe has the same frequency as the first overtone of organ pipe. How long is each pipe?
  A)
   41.25 cm          
  done clear
  B)
   42.3 cm
  done clear
  C)
   49.5 cm           
  done clear
  D)
   40.5 cm
  done clear
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• question_answer10) In L-C-R circuit, \[f=\frac{50}{\pi }\,Hz\], V = 50 V, R = 300 \[\Omega \] If L = 1 H and C = 20 \[\mu C\], then the voltage across capacitor is
  A)
   50V               
  done clear
  B)
   20V
  done clear
  C)
   zero               
  done clear
  D)
   30 V
  done clear
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• question_answer11) In a car race, car A takes a time t less than car B at the finish and passes the finishing point with speed v more than that of the car B. Assuming that both the cars starts from rest and travel with constant accelerations \[{{a}_{1}}\] and \[{{a}_{2}}\] respectively. So, the value of v will be
  A)
   \[(\sqrt{{{a}_{1}}/{{a}_{2}}}\,)t\]          
  done clear
  B)
   \[(\sqrt{{{a}_{2}}/{{a}_{1}}})\,t\]
  done clear
  C)
   \[({{a}_{1}}\sqrt{{{a}^{2}}})\,t\]        
  done clear
  D)
   \[(\sqrt{{{a}_{1}}{{a}_{2}}})\,t\]
  done clear
  View Answer play_arrow

• question_answer12) If an equiconvex lens is cut into two halves along (i) XOX and (ii) YOY as shown in the figure. Let \[f,f,f\] be the focal lengths of complete lens of each, in case (i) and of each half in case (ii) respectively. Choose the correct statement from the following?
  A)
   \[f=f,\,f=f\]
  done clear
  B)
   \[f=2f,\,f=2f\]
  done clear
  C)
   \[f=f,\,f=2f\]
  done clear
  D)
   \[f=2f,\,f=f\]
  done clear
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• question_answer13) The bob of a pendulum is released from < horizontal position A as shown in the figure If the length of the pendulum is 1.5 m, what is the speed with which the bob arrives at the lower most point B, given that it dissipated 5% of its initial energy against air resistance?
  A)
   5 m/s                
  done clear
  B)
   5-5 m/s
  done clear
  C)
   5.3 m/s              
  done clear
  D)
   4.4 m/s
  done clear
  View Answer play_arrow

• question_answer14) In a photoemissive cell with executing wavelength \[\lambda \], the fastest electron has speed v. If the exciting wavelength is changed to \[\frac{3\lambda }{4}\]the speed of fastest emitted electron will be
  A)
   greater than\[v{{\left( \frac{4}{3} \right)}^{1/2}}\]
  done clear
  B)
   \[v{{\left( \frac{3}{4} \right)}^{1/2}}\]
  done clear
  C)
   \[v{{\left( \frac{4}{3} \right)}^{1/2}}\]                  
  done clear
  D)
   less than \[v{{\left( \frac{4}{3} \right)}^{1/2}}\]
  done clear
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• question_answer15) A ball of mass m moving at a speed v makes a head on collision with an identical ball at rest. The kinetic energy at the balls after the collision is 3/4th of the original. What is the coefficient of restitution?
  A)
   \[1/\sqrt{3}\]               
  done clear
  B)
   \[1/\sqrt{2}\]
  done clear
  C)
   \[\sqrt{2}\]
  done clear
  D)
   \[\sqrt{3}\]
  done clear
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• question_answer16) A radioactive material decays by simultaneous emission of two particles with half-lives 1620 yr and 810 yr respectively. The time in years after which one-fourth of material remains, is
  A)
   1080 yr          
  done clear
  B)
   2340 yr
  done clear
  C)
   4860 yr          
  done clear
  D)
   3240 yr
  done clear
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• question_answer17) A cylinder rolls up an inclined plane at an angle of \[{{30}^{o}}\]. At the bottom of the inclined plane, the centre of mass of the cylinder has speed of 5 m/s. How long will it take to return to the bottom?
  A)
   2s             
  done clear
  B)
   3 s
  done clear
  C)
   1.5 s            
  done clear
  D)
   4 s
  done clear
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• question_answer18) The current gain in the common emitter amplifier mode of a transistor is 10. The input impedance is 20 \[k\Omega \] and load of resistance is 100 \[k\Omega \]. The power gain is
  A)
   300               
  done clear
  B)
   500
  done clear
  C)
   200               
  done clear
  D)
   100
  done clear
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• question_answer19) What will be the displacement equation of the simple harmonic motion obtained by combining the motions? \[{{x}_{1}}=2\,\sin \omega \,t\], \[{{x}_{2}}=4\,\sin \left( \omega \,t+\frac{\pi }{6} \right)\] and\[{{x}_{3}}=6\,\sin \left( \omega \,t+\frac{\pi }{3} \right)\]
  A)
   \[x=10.25\sin \,(\omega \,t+\phi )\]
  done clear
  B)
   \[x=10.25\sin \,(\omega \,t-\phi )\]
  done clear
  C)
   \[x=11.25\sin \,(\omega \,t+\phi )\]
  done clear
  D)
   \[x=11.25\sin \,(\omega \,t-\phi )\]
  done clear
  View Answer play_arrow

• question_answer20) An ammeter A reads 2 A and the voltmeter V reads 20 V. The value of resistance R is (assuming finite resistaneces of ammeter and voltmeter)
  A)
   exactly 10 \[\Omega \].        
  done clear
  B)
   less than 10 \[\Omega \].
  done clear
  C)
   more than 10 \[\Omega \].
  done clear
  D)
   we cannot definitely say
  done clear
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• question_answer21) A stream of water flowing horizontally with the speed of 15 \[m{{s}^{-1}}\] gushes out of a tube of cross-sectional area \[{{10}^{-2}}{{m}^{-2}}\] and hits a vertical wall nearby. What is the force exerted on the wall by the impact or water? Assuming it does not rebound.
  A)
   2250 N            
  done clear
  B)
   2000 N
  done clear
  C)
   1500N            
  done clear
  D)
   1000N
  done clear
  View Answer play_arrow

• question_answer22) Two charges \[+6\,\,\mu C\] and \[-4\,\,\mu C\] are placed 15 cm apart as shown. At what distances from A to its right, the electrostatic potential is zero?
  A)
   4, 9, 60              
  done clear
  B)
   9. 15, 45
  done clear
  C)
   20, 30, 40           
  done clear
  D)
   9, 45, infinity
  done clear
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• question_answer23) A shell of mass 0.020 kg is fired by a gun of mass 100 kg. If the muzzle speed of the shell is 80 \[m{{s}^{-1}}\]. What is the recoil speed of the gun?
  A)
   1.6 \[cm{{s}^{-1}}\]         
  done clear
  B)
   0.5 \[cm{{s}^{-1}}\]
  done clear
  C)
   2 \[cm{{s}^{-1}}\]           
  done clear
  D)
   3 \[cm{{s}^{-1}}\]
  done clear
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• question_answer24) If \[E=100\sin (100\,t)\] volt and \[I=100\sin \left( 100\,t+\frac{\pi }{3} \right)mA\] are the instantaneous voltage and current, then the rms values of voltage and current are respectively;
  A)
   70.7 V, 70.7 mA     
  done clear
  B)
   60.9 V, 69.3 mA
  done clear
  C)
   90.6 V,-141.4 mA    
  done clear
  D)
   60 V, 70 mA
  done clear
  View Answer play_arrow

• question_answer25) If torques of equal magnitudes are applied to a hollow cylinder and a solid sphere both having the same mass and radius. The cylinder is free to rotate about its standard axis of symmetry and the sphere is free to rotate about an axis passing through its centre. Which of the two will acquire a greater angular speed after a given time?
  A)
   \[{{\omega }_{1}}>{{\omega }_{2}}\]           
  done clear
  B)
   \[{{\omega }_{1}}={{\omega }_{2}}\]
  done clear
  C)
   \[{{\omega }_{2}}>{{\omega }_{1}}\]       
  done clear
  D)
   None of these
  done clear
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• question_answer26) . The threshold frequency for certain metal is\[3.3\times {{10}^{14}}Hz\]. If light of \[8.2\times {{10}^{14}}Hz\] frequency is incident on the metal, then the cut-off voltage of the photoelectric current will be
  A)
   3V                
  done clear
  B)
   4V
  done clear
  C)
   2V                
  done clear
  D)
   2.5V
  done clear
  View Answer play_arrow

• question_answer27) If two simple pendulums first of bob mass \[{{M}_{1}}\]and length \[{{l}_{1}}\] second of bob mass \[{{M}_{2}}\] and length \[{{l}_{2}}\]. Given \[{{M}_{1}}={{M}_{2}}\] and \[{{l}_{1}}=2{{l}_{2}}\]. If the vibrational energies of both are same, then which of the following is correct?
  A)
   Amplitude of B is smaller than A
  done clear
  B)
   Amplitude of B is greater than B
  done clear
  C)
   Amplitude will be same
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer28) A thin film of soap solution \[({{\mu }_{s}}=1.4)\] lies on the top of a glass plate \[({{\mu }_{g}}=1.5)\]. When visible light is incident almost normal to the plate, two adjacent reflection maxima are observed at two wavelengths 420 nm and 630 nm. The minimum thickness of the soap solution are
  A)
   420 nm          
  done clear
  B)
   500 nm
  done clear
  C)
   450 nm           
  done clear
  D)
   490 nm
  done clear
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• question_answer29) An air bubble stats rising from the bottom of a lake. Its diameter is 3.6 mm at the bottom and 4 mm at the surface. The depth of the lake is 250 cm and the temperature at surface is\[{{40}^{o}}C\]. What is the temperature at the bottom of the lake? Given atmpospheric pressure = 76 cm of Hg and \[g=980\,\,cm/{{s}^{2}}\].
  A)
   \[{{11}^{o}}C\]   
  done clear
  B)
   \[{{12.36}^{o}}C\]
  done clear
  C)
   \[{{13}^{o}}C\]  
  done clear
  D)
   \[{{10.37}^{o}}C\]
  done clear
  View Answer play_arrow

• question_answer30) If four atoms of hydrogen combine to form an 2 He atom, then the amount of energy released is
  A)
   26.7 MeV          
  done clear
  B)
   25.3 MeV
  done clear
  C)
   22 MeV    
  done clear
  D)
   24.5 MeV
  done clear
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• question_answer31) A simple harmonic wave of amplitude 8 unit travels along positive x-axis. At any given instant of time, for a particle at a distance of 10 cm from the origin, the displacement is + 6 unit and for a particle at a distance of 25 cm from the origin, the displacement is + 4 unit. Calculate the wavelength,
  A)
   200 cm
  done clear
  B)
   230 cm
  done clear
  C)
   210 cm
  done clear
  D)
   250 cm
  done clear
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• question_answer32) When a battery of emf 8 V with internal resistance \[0.5\,\,\Omega \] is charged by a 120 V DC supply using a series resistance of \[15.5\,\,\Omega \], then the terminal voltage of the battery is
  A)
   11.5 V  
  done clear
  B)
   20 V   
  done clear
  C)
   21.5 V  
  done clear
  D)
   12,3 V
  done clear
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• question_answer33) A rigid bar of mass 15 kg is supported symmetrically by three wires each 2 m long. Those at each end are of copper and the middle one is of iron. Determine the ratio of their diameters if each is to have the tension.
  A)
   12.6 : 2          
  done clear
  B)
   1.31 : 1
  done clear
  C)
   4.65 : 3          
  done clear
  D)
   2.69 : 4
  done clear
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• question_answer34) Figure given below shows a network of four capacitors of capacitance equal to \[{{C}_{1}}=C\], \[{{C}_{2}}=2C,\,\,{{C}_{3}}=3C,\,\,{{C}_{4}}=4C\] are connected to a battery. The ratio of charges on \[{{C}_{2}}\] and \[{{C}_{4}}\] is
  A)
   7/4    
  done clear
  B)
   7/22   
  done clear
  C)
   3/22    
  done clear
  D)
   4/7
  done clear
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• question_answer35) Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 \[km{{h}^{-1}}\]m the same direction, with A head of speed B. The driver of B decides to overtake A and accelerates by \[1\,m/{{s}^{-2}}\]. If after 50 s, the guard of B just brushes past the driver of A, what was the original distance between them?
  A)
   100 m  
  done clear
  B)
   1150 m
  done clear
  C)
   1300 m
  done clear
  D)
   1250 m
  done clear
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• question_answer36) If a fully charged capacitor C with initial charge \[{{q}_{0}}\] is connected to a coil of self inductance L at\[t=0\]. The time at which the energy is stored equally between the electric field and magnetic field is
  A)
    \[\pi \sqrt{LC}\]
  done clear
  B)
   \[\frac{\pi }{4}\sqrt{LC}\]
  done clear
  C)
   \[\frac{\pi }{2}\sqrt{LC}\] 
  done clear
  D)
   \[\frac{\pi }{6}\sqrt{LC}\]
  done clear
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• question_answer37) A rocket is fired from the Earth towards the Sun. At what distance from the Earths centre, the gravitational force on the rocket is zero? Mass of the Sun \[=2\times {{10}^{30}}kg\] and mass of the Earth \[=6\times {{10}^{24}}kg\].
  A)
  \[2.6\times {{10}^{8}}m\]         
  done clear
  B)
   \[3.2\times {{10}^{8}}m\]
  done clear
  C)
   \[3.9\times {{10}^{9}}m\]
  done clear
  D)
   \[2.3\times {{10}^{9}}m\]
  done clear
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• question_answer38) In the figure given below, for an angle of incidence \[{{45}^{o}}\] at the top surface, what is the minimum refractive index need- to total internal reflection at vertical face?
  A)
   \[\frac{\sqrt{2}+1}{2}\]
  done clear
  B)
   \[\sqrt{\frac{1}{2}}\]  
  done clear
  C)
   \[\sqrt{\frac{3}{2}}\]
  done clear
  D)
   \[\sqrt{2}+1\]
  done clear
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• question_answer39) A solid cylinder of mass 20 kg rotates about its axis with angular speed 100 rad \[{{s}^{-1}}\]. The radius of the cylinder is 0.25 m. What is the kinetic energy associated with the rotation of cylinder? What is the magnitude of angular momentum of cylinder about its axis?
  A)
   62.5 T-s
  done clear
  B)
   70.4 T-s
  done clear
  C)
   79.6 T-s
  done clear
  D)
   60.5 T-s
  done clear
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• question_answer40) A change of 8.0 mA in the emitter current 1} rings a change of 7.9 mA in the correct collector current. The values of a and p are
  A)
   0.99, 90
  done clear
  B)
   0.96, 79
  done clear
  C)
   0.97, 99
  done clear
  D)
   0.99, 79
  done clear
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• question_answer41) A stone of mass 0.25 kg tied to the end of a string is whirled round in a circle of radius 1.5 m with speed 40 rev/min in a horizontal plane. What is the tension in the string and what is the maximum speed with which the stone can be whirled around, if the string can withstand a maximum tension of 200 N?
  A)
   6.6 N, 35 \[m{{s}^{-1}}\]      
  done clear
  B)
   6 N, 37 \[m{{s}^{-1}}\]
  done clear
  C)
   7.5 N, 46 \[m{{s}^{-1}}\]      
  done clear
  D)
   8 N, 38 \[m{{s}^{-1}}\]
  done clear
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• question_answer42) A straight wire of mass 200 g and length 1.5 m carries a current of 2 A. It is suspended in mid air by a uniform horizontal magnetic field B. The magnitude of B (in tesla) is
  A)
   0.65    
  done clear
  B)
   0.55    
  done clear
  C)
   0.75    
  done clear
  D)
   0.45
  done clear
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• question_answer43) A U -shaped wire is dipped in a soap solution and removed. The thin soap film formed between the wire and light slider supports a weight of \[1.5\times {{10}^{2}}N\]. The length of the slider is 30 cm. What is the surface tension of the film?
  A)
   \[3\times {{10}^{-3}}N{{m}^{-1}}\]      
  done clear
  B)
   \[2\times {{10}^{-5}}N{{m}^{-1}}\]
  done clear
  C)
   \[4\times {{10}^{-4}}N{{m}^{-1}}\]      
  done clear
  D)
   \[2.5\times {{10}^{-2}}N{{m}^{-1}}\]  
  done clear
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• question_answer44) At constant pressure, the ratio of increase in volume of an ideal gas per degree rise in kelvin temperature to its original volume is
  A)
   \[{{7}^{2}}\]      
  done clear
  B)
   \[\frac{1}{T}\]
  done clear
  C)
   \[{{T}^{3}}\]
  done clear
  D)
   T
  done clear
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• question_answer45) The length of a magnet is large compared to its width and breadth. The time period of its oscillation in vibration magnetometer is 2 s. The magnet is cut along its length into three equal parts and three parts are then palced on each other with their like poles together. The lime period of this combination will be
  A)
   \[\frac{2}{3}s\]     
  done clear
  B)
  \[\sqrt{\frac{2}{3}}s\]  
  done clear
  C)
   \[\frac{3}{2}s\]
  done clear
  D)
   \[\sqrt{\frac{3}{2}}s\]
  done clear
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• question_answer46) A body of mass 1 kg is moving in a vertical. circular path of radius 1 m. The difference between the kinetic energies at its highest and lowest positions is
  A)
   \[4\sqrt{5}\,\,J\]
  done clear
  B)
   20 J   
  done clear
  C)
   10 J       
  done clear
  D)
   30 J
  done clear
  View Answer play_arrow

• question_answer47) If electrical force between two charges is 200 N and we increase 10% charge on one of the charges and decrease 10% charge on the other, then electrical force between them for the same distance becomes
  A)
   200 N 
  done clear
  B)
   202 N 
  done clear
  C)
   198 N  
  done clear
  D)
   199 N
  done clear
  View Answer play_arrow

• question_answer48) The acceleration due to gravity on the planet is 9 times the acceleration due to gravity on planet B. A man jumps to a height of 2 m on the surface of A. What is the height of jump by the same on the planet B7
  A)
   6 m   
  done clear
  B)
   2/3 m  
  done clear
  C)
   2/9 m  
  done clear
  D)
   18 m
  done clear
  View Answer play_arrow

• question_answer49) In hydrogen atom spectrum, frequency of \[2.7\times {{10}^{15}}Hz\] of EM wave is emitted when transmission takes place from 2 to 1. If it- moves from 3 to 1, the frequency emitted will be
  A)
   \[3.2\times {{10}^{15}}Hz\]       
  done clear
  B)
  \[32\times {{10}^{15}}Hz\]
  done clear
  C)
  \[1.6\times {{10}^{15}}Hz\]       
  done clear
  D)
  \[16\times {{10}^{15}}Hz\]
  done clear
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• question_answer50) If a ray of light in a denser medium strikes a rarer medium at an angle of incidence 2, the angles of reflection and refraction are respectively r and r. If the reflected and refracted rays are at right angles to each other, the critical angle for the given pair of media is
  A)
  \[{{\sin }^{-1}}(\tan r)\]
  done clear
  B)
  \[{{\sin }^{-1}}(\tan r)\]
  done clear
  C)
  \[{{\tan }^{-1}}(\sin i)\]
  done clear
  D)
  \[{{\cot }^{-1}}(\tan i)\]
  done clear
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• question_answer51) Consider the following reaction sequence of alkene \[C{{H}_{3}}CH=CHC{{H}_{3}}\xrightarrow{{{O}_{3}}}A\xrightarrow[Zn]{{{H}_{2}}O}B\] The product B is
  A)
   \[C{{H}_{2}}C{{H}_{2}}COC{{H}_{3}}\]
  done clear
  B)
   \[C{{H}_{3}}COC{{H}_{3}}\]
  done clear
  C)
   \[C{{H}_{3}}CHO\]
  done clear
  D)
   \[C{{H}_{3}}C{{H}_{2}}CHO\]
  done clear
  View Answer play_arrow

• question_answer52) Choose the correct statement about the industrial preparation of hydrogen from water gas \[(CO+{{H}_{2}})\],
  A)
   \[{{H}_{2}}\] is removed through occlusion with Pd
  done clear
  B)
   CO and \[{{H}_{2}}\] are fractionally separated using differences in their densities
  done clear
  C)
   CO is removed by absorption in aq. \[C{{u}_{2}}C{{l}_{2}}\]solution
  done clear
  D)
   CO is oxidised to \[C{{O}_{2}}\] with steam in the presence of a catalyst followed by absorption of \[C{{O}_{2}}\] in alkali
  done clear
  View Answer play_arrow

• question_answer53) The energy required to excite the electron in the atom from \[n=1\] to \[n=2\], when the ionization enthalpy of hydrogen atom is \[1.312\times {{10}^{6}}J/mol\] will be (in the unit of \[{{10}^{5}}\]).
  A)
   8.53               
  done clear
  B)
   7.51
  done clear
  C)
   8.92               
  done clear
  D)
   9.86
  done clear
  View Answer play_arrow

• question_answer54) An ideal mono-atomic gas follows the path ABCD. Then, the work done during the complete cycle is
  A)
   zero             
  done clear
  B)
   \[-\frac{1}{2}\,pV\]
  done clear
  C)
   \[-pV\]
  done clear
  D)
   \[-2\,\,pV\]
  done clear
  View Answer play_arrow

• question_answer55) From the following which pairs give the faster \[{{S}_{N}}2\] reaction?
  A)
   
  done clear
  B)
    
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer56) The reactivity order of halogenation of alkanes is \[{{F}_{2}}>C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}\]. Choose the correct statements.

  I. Lower the activation energy for the chain initiation step, more reactive is the halogen.

  II. Lower the activation energy for the first chain propagation step, more reactive is the halogen.

  III. Lower the activation energy for the, second chain propagation step, more reactive is the halogen.

  IV. More negative is the overall heat of the reaction (\[\Delta H_{r}^{o}\] of halogenation of alkane) more reactive is the halogen.

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

• question_answer57) What is the bond angle between \[Cl-O-Cl\]in\[C{{l}_{2}}{{O}_{7}}\]?
  A)
   \[{{109}^{o}}\]
  done clear
  B)
   \[{{119}^{o}}\]
  done clear
  C)
   \[{{108}^{o}}25\]
  done clear
  D)
   \[{{120}^{o}}\]
  done clear
  View Answer play_arrow

• question_answer58) The solubility of fluorides of alkali metals in  water is
  A)
   LiF > NaF > KF > RbF > CsF
  done clear
  B)
   CsF > RbF > KF > NaF > LiF
  done clear
  C)
   LiF > KF > NaF > CsF > RbF
  done clear
  D)
   CsF > KF > NaF > RbF > LiF
  done clear
  View Answer play_arrow

• question_answer59) Which of the following relation is correct for gaseous and reversible reactions?
  A)
   \[\frac{{{K}_{C}}}{{{K}_{P}}}={{(RT)}^{\Delta {{n}_{g}}}}\]
  done clear
  B)
   \[\frac{{{K}_{p}}}{{{K}_{x}}}={{(p)}^{\Delta {{n}_{g}}}}\]
  done clear
  C)
   \[\frac{{{K}_{C}}}{{{K}_{X}}}={{(p)}^{-\Delta {{n}_{g}}}}\]
  done clear
  D)
   \[\frac{{{K}_{C}}}{{{K}_{X}}}={{\left( \frac{p}{RT} \right)}^{\Delta {{n}_{g}}}}\]
  done clear
  View Answer play_arrow

• question_answer60) Consider the following sequence of reactions,
  A)
    
  done clear
  B)
    
  done clear
  C)
   
  done clear
  D)
    
  done clear
  View Answer play_arrow

• question_answer61) If the  dipole moment of HBr is \[2.60\times {{10}^{-30}}Cm\]and the interatomic spacing is 1.41 \[\overset{o}{\mathop{A}}\,\], then the per cent ionic character of HBr is
  A)
   16.23%            
  done clear
  B)
   13.21%
  done clear
  C)
   11.50%            
  done clear
  D)
   15.81%
  done clear
  View Answer play_arrow

• question_answer62) Consider the following reaction, \[CC{{l}_{3}}CH=C{{H}_{2}}\xrightarrow[{{H}_{2}}O/HOCl]{NaB{{O}_{4}}}\] Product (P) is
  A)
   \[CC{{l}_{3}}\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{C}}\,HC{{H}_{2}}Cl\]
  done clear
  B)
   \[CC{{l}_{3}}\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{C}}\,H\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{C}}\,{{H}_{2}}\]
  done clear
  C)
   \[CC{{l}_{3}}\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{2}}OH\]
  done clear
  D)
   \[CC{{l}_{3}}\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,H-\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer63) Among \[{{[Ni{{(CN)}_{4}}]}^{2-}},\,{{[NiC{{l}_{4}}]}^{2-}}\] and \[[Ni\,\,{{(CO)}_{4}}]\]
  A)
   \[{{[NiC{{l}_{4}}]}^{2-}}\] is square planar and \[{{[Ni{{(CN)}_{4}}]}^{2-}},\,Ni{{(CO)}_{4}}\] are tetrahedral
  done clear
  B)
   \[Ni\,{{(CO)}_{4}}\] is square planar and \[{{[Ni\,{{(CN)}_{4}}]}^{2-}},\,{{[NiC{{l}_{4}}]}^{2-}}\] are tetrahedral
  done clear
  C)
   \[{{[Ni\,{{(CN)}_{4}}]}^{2-}}\] is square planar and \[[Ni\,{{(C{{l}_{4}}]}^{2-}},Ni{{(CO)}_{4}}\] are tetrahedral
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer64) Match the following Column I with Column II.

  	Column - I		Column - II
  [a]	Acetic acid and methyl formate	1.	Ring chain tautomerism
  [b]	Maleic and fumaric acid	2.	Functional isomers
  [c]		3.	Geometrical isomers
  [d]		4.	Metamerism

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

• question_answer65) Beryllium gives a compound X with the following percentage composition: Be-6.1%, N-37.8%, Cl-48%, H-8.1%. Molecular weight of X is \[148\,\,g\,mo{{l}^{-1}}\] and that of Be is \[9\,\,g\,mo{{l}^{-1}}\]. The molecular formula of the compound is
  A)
   \[Be{{N}_{4}}C{{l}_{2}}{{H}_{12}}\]
  done clear
  B)
   \[Be{{N}_{2}}Cl{{H}_{6}}\]
  done clear
  C)
   \[Be{{N}_{4}}C{{l}_{2}}{{H}_{6}}\]
  done clear
  D)
   \[Be{{N}_{4}}Cl{{H}_{8}}\]
  done clear
  View Answer play_arrow

• question_answer66) The increasing dipole moments of the following compounds is
  A)
  I < III < IV < II        
  done clear
  B)
  II = IV < III < I
  done clear
  C)
  II = I < IV < III         
  done clear
  D)
   III < I < II < IV
  done clear
  View Answer play_arrow

• question_answer67) Compound A undergoes following reactions to form B and C Black coloured solid [A] \[\xrightarrow{KN{{O}_{3}}+KOH}\] Green coloured solution [B] Green coloured \[\xrightarrow{C{{O}_{2}}}\] Pink solution[C] + [A] Solution [B] [C] decolourised by \[F{{e}^{3+}}\] Identify A, B and C respectively
  A)
   \[Mn{{O}_{2}},\,KMn{{O}_{4}}\] and \[{{K}_{2}}Mn{{O}_{4}}\]
  done clear
  B)
   \[Mn{{O}_{2}},\,{{K}_{2}}Mn{{O}_{4}}\] and \[KMn{{O}_{4}}\]
  done clear
  C)
   \[KMn{{O}_{4}},\,Mn{{O}_{2}}\] and \[{{K}_{2}}Mn{{O}_{4}}\]
  done clear
  D)
   \[KMn{{O}_{4}},\,{{K}_{2}}Mn{{O}_{4}}\] and \[Mn{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer68) The reaction between nitric oxide (NO) and oxygen to form nitrogen dioxide \[(N{{O}_{2}})\] is a key step in photochemical smog formation \[2NO(g)+{{O}_{2}}(g)\xrightarrow{{}}2N{{O}_{2}}(g)\] The grams of \[N{{O}_{2}}\] are formed by complete by reaction of 1.20 g of NO is
  A)
   7.2g  
  done clear
  B)
   2:3 g  
  done clear
  C)
   1.8g   
  done clear
  D)
   4.1 g
  done clear
  View Answer play_arrow

• question_answer69)  \[2HC\equiv CH\,\,\xrightarrow[+N{{H}_{4}}Cl]{C{{H}_{2}}C{{l}_{2}}}\,A\,\,\xrightarrow[HCl]{1\,\,mol}\,\,B\] Identify the compounds A and B.
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer70) At \[{{80}^{o}}C\], the vapour pressure of pure liquid A is 520 mm Hg and that of pure liquid B is 1000 mm Hg. If a mixture solution of A and B boils at \[{{80}^{o}}C\]and 1 atm pressure, the amount of A in the mixture is
  A)
   50 mol per cent    
  done clear
  B)
   54 mol per cent
  done clear
  C)
   32 mol per cent     
  done clear
  D)
   44 mol per cent
  done clear
  View Answer play_arrow

• question_answer71) The correct increasing order of solubility of the sulphates in water is
  A)
  \[BeS{{O}_{4}}>MgS{{O}_{4}}>CaS{{O}_{4}}>SrS{{O}_{4}}>BaS{{O}_{4}}\]
  done clear
  B)
  \[BeS{{O}_{4}}>SrS{{O}_{4}}>CaS{{O}_{4}}>MgS{{O}_{4}}>BeS{{O}_{4}}\]
  done clear
  C)
  \[BeS{{O}_{4}}>CaS{{O}_{4}}>SrS{{O}_{4}}>BeS{{O}_{4}}>MgS{{O}_{4}}\]
  done clear
  D)
  \[BaS{{O}_{4}}>SrS{{O}_{4}}>MgS{{O}_{4}}>CaS{{O}_{4}}>BeS{{O}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer72) Consider the following reaction, \[ZnC{{l}_{2}}+NaOH\xrightarrow{{}}\underset{White\text{ }ppt.}{\mathop{B}}\,\xrightarrow{NaOH}\underset{Soluble}{\mathop{C}}\,\] Then, the final product C is
  A)
   \[N{{a}_{2}}Zn{{O}_{2}}\]   
  done clear
  B)
   \[Zn{{(OH)}_{2}}\]
  done clear
  C)
   ZnO             
  done clear
  D)
   \[ZnS{{O}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer73) The vapour pressure of pure water is 23.5 mm Hg. Then, the vapour pressure of an aqueous solution which contains 5 mass percent of urea is (Molar mass of urea is 60).
  A)
   23 mm Hg         
  done clear
  B)
   18 mm Hg
  done clear
  C)
   31 mm Hg         
  done clear
  D)
   35 mm Hg
  done clear
  View Answer play_arrow

• question_answer74) Which of the following organic chloro compound shows stereochemical inversion during a \[{{S}_{N}}2\] reaction?
  A)
   \[{{(C{{H}_{3}})}_{3}}CCl\]
  done clear
  B)
   \[{{(C{{H}_{3}})}_{2}}CHCl\]
  done clear
  C)
   \[{{({{C}_{2}}{{H}_{5}})}_{2}}CHCl\]
  done clear
  D)
   \[C{{H}_{3}}Cl\]
  done clear
  View Answer play_arrow

• question_answer75) Consider the following reactions, \[C\,(s)+{{O}_{2}}(g)\xrightarrow{{}}C{{O}_{2}}(g),\,\Delta H=-94\,kcal\] \[2CO\,(g)+{{O}_{2}}\xrightarrow{{}}2C{{O}_{2}}(g),\,\Delta H=-135.2\,kcal\] Then, the heat of formation of CO (g) is
  A)
   26.4 kcal           
  done clear
  B)
   -26.4 kcal
  done clear
  C)
   41.2 kcal           
  done clear
  D)
   -41.2 kcal
  done clear
  View Answer play_arrow

• question_answer76) If the \[p{{K}_{a}}\] of a weak acid HA is 4.80 and the\[p{{K}_{b}}\] , of a weak base BOH is 4.78. Then, the pH of an aqueous solution of the corresponding salt, BA will be
  A)
   8.23    
  done clear
  B)
   9.41    
  done clear
  C)
   7.01    
  done clear
  D)
   5.91
  done clear
  View Answer play_arrow

• question_answer77) Which one of the following is the correct statement?
  A)
   \[{{B}_{3}}{{N}_{3}}{{H}_{6}}\] is known as inorganic benzene
  done clear
  B)
   Chlorides of both beryllium and aluminium have bridged chloride structure in gas phase
  done clear
  C)
   Boric acid is a protonic acid
  done clear
  D)
   Beryllium exhibits coordination number of six
  done clear
  View Answer play_arrow

• question_answer78) A nitrogenous substance A is treated with\[HN{{O}_{2}}\] and the product formed is further treated with \[NaOH\] solution which produces blue colouration. Then, A will be
  A)
   \[C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}\]
  done clear
  B)
   \[{{(C{{H}_{3}})}_{2}}CHN{{O}_{2}}\]
  done clear
  C)
   \[C{{H}_{3}}C{{H}_{2}}N{{O}_{2}}\]
  done clear
  D)
   \[C{{H}_{3}}C{{H}_{2}}ONO\]
  done clear
  View Answer play_arrow

• question_answer79) Argon crystallises in fee arrangement and the density of solid and liquid Ar is \[1.59\,\,g/c{{m}^{3}}\] and \[1.42\,\,g/c{{m}^{3}}\], respectively. The percentage of empty space in liquid Ar is
  A)
   34.84%
  done clear
  B)
   43.8% 
  done clear
  C)
   23.4% 
  done clear
  D)
   21.6%
  done clear
  View Answer play_arrow

• question_answer80) Which one of the following is an exothermic reaction?
  A)
   \[{{N}_{2}}(g)+{{O}_{2}}(g)+180.8\,kJ\xrightarrow{{}}2NO\,(g)\]
  done clear
  B)
   \[C\,(graphite)+2S\,(s)\xrightarrow{{}}C{{S}_{2}}(l)-91.9\,kJ\]
  done clear
  C)
   \[{{N}_{2}}\,(g)+3{{H}_{2}}(g)-92\,kJ\xrightarrow{{}}2N{{H}_{3}}(g)\]
  done clear
  D)
  \[C\,(g)+{{H}_{2}}O(g)\xrightarrow{{}}CO\,(g)+{{H}_{2}}(g)-131.1\,kJ\]
  done clear
  View Answer play_arrow

• question_answer81) When 4A of current is passed through a 1.0 L, 0.10 M \[F{{e}^{3+}}(aq)\] solution for 1 h, it is partly reduced to Fe(s) and partly of \[F{{e}^{2+}}(aq)\]. Identify the incorrect statement.
  A)
   0.10 mole of electrons are required to convert all \[F{{e}^{3+}}\] to \[F{{e}^{2+}}\]
  done clear
  B)
   0.025 mol of Fe(s) will be deposited
  done clear
  C)
   0.075 mol of iron remains as \[F{{e}^{2+}}\]
  done clear
  D)
   0.050 mol of iron remains as \[F{{e}^{2+}}\]
  done clear
  View Answer play_arrow

• question_answer82) Which of the following statement are correct?
  A)
   \[C{{O}_{2}}\] and \[Si{{O}_{2}}\] both are gases
  done clear
  B)
   \[C{{O}_{2}}\] is gas and \[Si{{O}_{2}}\] is a liquid
  done clear
  C)
   \[C{{O}_{2}}\] is a gas but \[Si{{O}_{2}}\] is a solid
  done clear
  D)
   Carbon and Si both form oxides of similar properties
  done clear
  View Answer play_arrow

• question_answer83) Identify the product B of the following reactions
  A)
   
  done clear
  B)
   
  done clear
  C)
      
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer84) Given that, \[E_{F{{e}^{2+}}/Fe}^{o}=-0.44\,\,V\], \[E_{F{{e}^{2+}}/F{{e}^{3+}}}^{o}=-0.77\,\,V\]. If \[F{{e}^{2+}},F{{e}^{3+}}\] and Fe solid are kept together, then
  A)
   \[F{{e}^{3+}}\] decreases
  done clear
  B)
   \[F{{e}^{3+}}\] increases
  done clear
  C)
   \[F{{e}^{2+}}\] decreases
  done clear
  D)
   \[F{{e}^{2+}},F{{e}^{3+}}\] remain unchanged
  done clear
  View Answer play_arrow

• question_answer85) Which of the following compound in its anionic form is aromatic?
  A)
   
  done clear
  B)
   
  done clear
  C)
    
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer86) In terms of Arrhenius equation, \[k=A{{e}^{-{{E}_{a}}RT}}\]the temperature dependence of rate constant (k) of a chemical reaction is written. Then, the activation energy \[({{E}_{a}})\] of the reaction can be calculated by plotting.
  A)
   \[\log \,k\,vs\frac{1}{\log \,T}\]
  done clear
  B)
   \[\log \,k\,vs\frac{1}{T}\]
  done clear
  C)
   \[k\,vs\,\,T\]
  done clear
  D)
   \[k\,vs\,\,\frac{1}{\log \,T}\]
  done clear
  View Answer play_arrow

• question_answer87) Which one of the following electrolytes is most effective for the coagulation of \[Fe{{(OH)}_{3}}\]?
  A)
   NaCI  
  done clear
  B)
   \[N{{a}_{2}}S{{O}_{4}}\]
  done clear
  C)
   \[N{{a}_{3}}P{{O}_{4}}\]
  done clear
  D)
   \[A{{s}_{2}}{{S}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer88) \[PhC{{H}_{2}}C{{H}_{3}}\xrightarrow[(ii)\,{{H}_{3}}{{O}^{+}}]{(i)\,Cr{{O}_{2}}C{{l}_{2}}/CC{{l}_{4}}}PhC{{H}_{2}}CHO\] The above reaction is an example of which, name reaction?
  A)
   Rossenmund reduction
  done clear
  B)
   Birch reduction
  done clear
  C)
   Mendius reduction
  done clear
  D)
   Etard reduction
  done clear
  View Answer play_arrow

• question_answer89) Which of the following statement is applicable for Tyndall effect?
  A)
   The diameter of the dispersed particle is much smaller than the wavelength of the light used
  done clear
  B)
  The diameter of the dispersed phase is much smaller than the wavelength of the light used
  done clear
  C)
   The refractive indices of the dispersed phase and the dispersion medium must be same
  done clear
  D)
   The refractive indices of the dispersed phase and the dispersion medium must differ greatly in magnitude
  done clear
  View Answer play_arrow

• question_answer90) Match the following and choose the correct option.

  	Column I		Column II
  A.	Ribose	1.	Ninhydrin
  B.	Biotin	2.	Nucleic acid
  C.	Enzyme	3.	Vitamin
  D.	Glycine	4.	GIobular protein

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

• question_answer91) On reduction of glycolic acid with HI, the product formed is
  A)
  acetic acid          
  done clear
  B)
   iodo acetic acid
  done clear
  C)
   formic acid          
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer92) Consider the following reaction, Identify the product B.
  A)
   
  done clear
  B)
   
  done clear
  C)
     
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer93) Arrange the following compounds in the increasing order of their reactivity towards HCN.

  I. Acetaldehyde

  II. Acetone

  III. Di-tert-butylketone

  IV. Methyl-tert-butyl ketone

  A)
   III < II < IV < I
  done clear
  B)
   II <1 < IV < II
  done clear
  C)
   IV < III < II < I
  done clear
  D)
   II < IV < I < III
  done clear
  View Answer play_arrow

• question_answer94) The enolic form of acetone contains
  A)
   10 \[\sigma \]-bonds, \[2\pi \] -bonds and 1 lone pair
  done clear
  B)
   9 \[\sigma \]-bonds, \[2\pi \]-bonds and 2 lone pairs
  done clear
  C)
   8 \[\sigma \]-bonds, \[2\pi \]-b0nds and 2 lone pairs
  done clear
  D)
   9 \[\sigma \]-bonds, \[2\pi \]-bond and 2 lone pairs
  done clear
  View Answer play_arrow

• question_answer95) The magnetic moment of \[{{M}^{x\,+}}\] (atomic number = 25) is \[\sqrt{15}\,BM\]. Then, the oxidation number \[x\] of M is
  A)
   3               
  done clear
  B)
   4
  done clear
  C)
   2              
  done clear
  D)
   1
  done clear
  View Answer play_arrow

• question_answer96) When 0.1 M NaOH is titrated with 0.1 M, 20 mL HA till the end point, \[{{K}_{a}}(HA)=6\times {{10}^{-6}}\] and degree of dissociation of HA is small as compared to unity. What is the pH of the resulting solution at the end point?
  A)
   6.23              
  done clear
  B)
   9.22
  done clear
  C)
   7.21              
  done clear
  D)
   8.95
  done clear
  View Answer play_arrow

• question_answer97) Arrange the following in the decreasing order of basic character.

  I. p-toluidine

  II. N, N-dimethyl-p-toluidine

  III. p-nitroaniline

  IV. Aniline

  A)
   II > III > I > IV
  done clear
  B)
   I > II > III > IV
  done clear
  C)
   II > I > IV > III
  done clear
  D)
   IV > III > I > II
  done clear
  View Answer play_arrow

• question_answer98) What is the enthalpy of the disproportionation of \[MgCl\] if the enthalpy of formation of hypothetical \[MgCl\] is \[-125\,kJ/mol\] and the \[MgC{{l}_{2}}\] is \[-642\,kJ/mol\]?
  A)
   - 767 kJ/mol
  done clear
  B)
   767 kJ/mol
  done clear
  C)
   -392 kJ/mol
  done clear
  D)
   392 kJ/mol
  done clear
  View Answer play_arrow

• question_answer99) The decreasing order of reactivity towards electrophilic addition of the following is

  I. \[CH=CH\]

  II. \[C{{H}_{2}}=C{{H}_{2}}\]

  III. \[{{H}_{2}}C=CH=Cl\]

  IV. \[H\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,=\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,H\]

  A)
   I > II > 111 > IV      
  done clear
  B)
   ll > 1 > 111 > IV
  done clear
  C)
   IV > III > I > II      
  done clear
  D)
   IV > III > I! > I
  done clear
  View Answer play_arrow

• question_answer100) Given the following bond dissociation enthalpies \[(kJ\,\,mo{{l}^{-1}})\]. \[P\equiv P-490,\,P-P=209,\,N\equiv N-946,N-N-160\]Compare the enthalpy changes for the process (i) \[2{{P}_{2}}(g)\xrightarrow{{}}{{P}_{4}}(g)\] (ii) \[2{{N}_{2}}(g)\xrightarrow{{}}{{N}_{4}}(g)\] Choose the correct option.
  A)
   \[{{P}_{4}}\] is feasible but \[{{N}_{4}}\]is hot feasible
  done clear
  B)
   \[{{P}_{4}}\] is not feasible but \[{{N}_{4}}\] is feasible
  done clear
  C)
   Both \[{{P}_{4}}\] and \[{{N}_{4}}\] are feasible
  done clear
  D)
   Both \[{{P}_{4}}\] and \[{{N}_{4}}\]are not feasible
  done clear
  View Answer play_arrow

• question_answer101) Stelar tissues like xylem and phloem, etc, arise from which of the following
  A)
   protpderm
  done clear
  B)
   cambium
  done clear
  C)
   procambium
  done clear
  D)
   lateral meristem
  done clear
  View Answer play_arrow

• question_answer102) Chlamydomonas and Chlorella, earlier placed in algae within plants (both having cell wall) are now placed together in which new kingdom. Choose the correct option.
  A)
   Fungi              
  done clear
  B)
   Animalia
  done clear
  C)
   Protista             
  done clear
  D)
   Monera
  done clear
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• question_answer103) Which of the following statement is incorrect about chordates?
  A)
   Chordates are bilaterally symmetrical.
  done clear
  B)
   Notochord is present at some stage of life.
  done clear
  C)
   Non-segmented, false segmented or true metamerically segmented animals.
  done clear
  D)
   Gill clefts present at some stage of life.
  done clear
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• question_answer104) Out of the following scientific names given below, identify the option written incorrectly.
  A)
   Mangifera.indica
  done clear
  B)
   Trypanosoma gambiense
  done clear
  C)
   Apis indica
  done clear
  D)
   Leo panther
  done clear
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• question_answer105) The most commonly occurring species of an earthworm in India is
  A)
   Pheretima communissima
  done clear
  B)
   Eutyphacus
  done clear
  C)
   Pheretima posthuma
  done clear
  D)
   Lumbricus
  done clear
  View Answer play_arrow

• question_answer106) Which type of ribosomal subunit are found in prokaryotic cells?
  A)
   80 S (60 S + 40 S)
  done clear
  B)
   80 S (30 S + 50 S)
  done clear
  C)
   70 S (35 S + 35 S)
  done clear
  D)
   70 S (50 S + 30 S)
  done clear
  View Answer play_arrow

• question_answer107) Identify the correct statement about the fluid mosaic model of cell membrane.
  A)
   It was proposed by J David Robertson in 1972.
  done clear
  B)
   Model resembles the iceberg (as proteins) floating in the sea (of phospholipids).
  done clear
  C)
   Hydrophilic phosphate head of phospholipids face inwards.
  done clear
  D)
   Hydrocarbon tails face outward.
  done clear
  View Answer play_arrow

• question_answer108) If more than one nucleoli are seen in the nucleus of cell. What does it corresponds to?
  A)
   Presence of false nucleoli
  done clear
  B)
   Absence of true nucleoli
  done clear
  C)
   Breakage in nucleolus
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer109) Polytene or salivary gland chromosome (giant chromosomes) were first observed by
  A)
   Du Praw           
  done clear
  B)
   Balbiani
  done clear
  C)
   Hemming         
  done clear
  D)
   Ruckert
  done clear
  View Answer play_arrow

• question_answer110) Synaptonemal complex is a structure of
  A)
   cytokinesis
  done clear
  B)
   terminalisation
  done clear
  C)
   chromosomal disfunction
  done clear
  D)
   chromosomal pairing
  done clear
  View Answer play_arrow

• question_answer111) Addition of 4-sphingosine instead of glycerol in addition to fatty acids and choline lead to formation of
  A)
   sphingosine        
  done clear
  B)
   sphingomyelins
  done clear
  C)
   sphingbphospholipids
  done clear
  D)
   cerebroside
  done clear
  View Answer play_arrow

• question_answer112) Which of the following acts as an isomerase enzyme?
  A)
   Phosphoglucomutase
  done clear
  B)
   Fumerases
  done clear
  C)
   Transphosphorylases
  done clear
  D)
   Nitrate reductase
  done clear
  View Answer play_arrow

• question_answer113) Addition of a competitive inhibitor to any reaction mixture will
  A)
   decrease km       
  done clear
  B)
   decrease \[{{V}_{\max }}\]
  done clear
  C)
   increase km        
  done clear
  D)
   increase \[{{V}_{\max }}\]
  done clear
  View Answer play_arrow

• question_answer114) The value of water potential for any given solute is always
  A)
   insignificant         
  done clear
  B)
   negative
  done clear
  C)
   slightly negative     
  done clear
  D)
   positive
  done clear
  View Answer play_arrow

• question_answer115) Radioactive \[C{{O}_{2}}{{(}^{14}}C{{O}_{2}})\] is added to the suspension of a photosynthesising green algae. Which compound of the following will be labelled first with \[^{14}C{{O}_{2}}\]?
  A)
   Glucose           
  done clear
  B)
   RuBP
  done clear
  C)
   GP(PGA)          
  done clear
  D)
   Triose phosphate
  done clear
  View Answer play_arrow

• question_answer116) ATP is the most important molecule released during all the respiratory cycles. Which one of the following is true about ATP?
  A)
   ATP is prosthetic part of an enzyme
  done clear
  B)
   ATP is an enzyme
  done clear
  C)
   ATP is an organic Jon of an enzyme
  done clear
  D)
   ATP is a coenzyme
  done clear
  View Answer play_arrow

• question_answer117) Morphogenesis inducing hormone used in plant tissue culture is
  A)
   abscisic acid        
  done clear
  B)
   gibberellins
  done clear
  C)
   cytokinins           
  done clear
  D)
   2, 4-D
  done clear
  View Answer play_arrow

• question_answer118) Specialised phagocytic cells of liver present in sinusoidal wall are
  A)
   macrophages       
  done clear
  B)
   nematocytes
  done clear
  C)
   kupffer cells       
  done clear
  D)
   oxyntic cells
  done clear
  View Answer play_arrow

• question_answer119) Bundle of His comprises a network of
  A)
   nerve fibres distributed throughout ventricles
  done clear
  B)
   nerve fibres present in ventricles
  done clear
  C)
   muscle fibres present throughout the heart walls
  done clear
  D)
   muscle fibres distributed in ventricle wall only
  done clear
  View Answer play_arrow

• question_answer120) Trigohe in excretory system is
  A)
   a urine filled cavity within the kidney
  done clear
  B)
   a muscular sphincter at the neck of the urinary bladder
  done clear
  C)
   a smooth connective tissue region in the urinary bladder
  done clear
  D)
   a tunic of the ureter
  done clear
  View Answer play_arrow

• question_answer121) A fractured coracoid process would involve the
  A)
   clavicle              
  done clear
  B)
   scapula
  done clear
  C)
   ulna                 
  done clear
  D)
   radius
  done clear
  View Answer play_arrow

• question_answer122) A hormone which also acts as a neurotransmitter is
  A)
   vasopressin
  done clear
  B)
   epinephrine
  done clear
  C)
   thyroxine            
  done clear
  D)
   insulin
  done clear
  View Answer play_arrow

• question_answer123) In which phase of cell division will you observe the phenomenon of congression?
  A)
   Prophase          
  done clear
  B)
   Metaphase
  done clear
  C)
   Anaphase        
  done clear
  D)
   Telophase
  done clear
  View Answer play_arrow

• question_answer124) A person met with an accident and was diagonsed with memory loss. Choose the correct option for the part of brain injured in the accident.
  A)
   Hippocampus      
  done clear
  B)
   Diencephalon
  done clear
  C)
   Cerebrum       
  done clear
  D)
   Amygdala
  done clear
  View Answer play_arrow

• question_answer125) The inactive form of the gastric enzymes is
  A)
   argentaffin         
  done clear
  B)
   zymogens
  done clear
  C)
   oxyntic             
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer126) Native people of plain areas moves to hilly areas, after a few months will have
  A)
   physically unfit to indulge in high energy games
  done clear
  B)
   have normal blood (RBC) count with Hb having high binding affinity to \[{{O}_{2}}\]
  done clear
  C)
   have increased count of RBC, Hb shows decreased affinity to \[{{O}_{2}}\]
  done clear
  D)
   suffer from nausea, fatigue and other symptoms of altitude sickness
  done clear
  View Answer play_arrow

• question_answer127) Eggs having yolk sac in their centre and cytoplasm in peripheral layer are called
  A)
   homolecithai
  done clear
  B)
   meioiecithal
  done clear
  C)
   centrolecithal
  done clear
  D)
   telolecithal
  done clear
  View Answer play_arrow

• question_answer128) Which of the following is a diploid cell?
  A)
   Spermatid
  done clear
  B)
   Secondary spermatocyte
  done clear
  C)
   Spermatogonium
  done clear
  D)
   Spermatozoa
  done clear
  View Answer play_arrow

• question_answer129) Given below are few comments regarding Medical Termination of Pregnancy (MTP). Identify the true statement.
  A)
   Government of India legalised MTP in 1970.
  done clear
  B)
   MTPs, are considered relatively safe up to 12 weeks of pregnancy.
  done clear
  C)
   Majority of MTPs are legally performed by qualified doctors to an abort healthy child.
  done clear
  D)
   Amniocentesis demotivates people to carry on MTP.
  done clear
  View Answer play_arrow

• question_answer130) Pasteurs experiment to refute the theory of spontaneous generation was successful spontaneous generation did not occur in his set up because
  A)
   he did not boil the flask for long
  done clear
  B)
   the S-shaped flask used by Pasteur prevented the contamination of broth by air
  done clear
  C)
   extreme precautions were used by him to kept his flask covered
  done clear
  D)
   he used fine muslin cloths to cover his experimental set up
  done clear
  View Answer play_arrow

• question_answer131) A connecting link between the Annelida and Arthropoda is
  A)
   Proterospongia      
  done clear
  B)
   Neopilina
  done clear
  C)
   Archaeopteryx      
  done clear
  D)
   Penpatus
  done clear
  View Answer play_arrow

• question_answer132) Dihybrid test-cross results in ratio of
  A)
   9 : 3 : 3 : 1        
  done clear
  B)
   1 : 2 : 4 : 1
  done clear
  C)
   3 : 1 : 1 :3        
  done clear
  D)
   1 : 2
  done clear
  View Answer play_arrow

• question_answer133) The direct ancestor of living modern man is
  A)
   Cro-magnon man
  done clear
  B)
   Neanderthal .man
  done clear
  C)
   Heidelberg man
  done clear
  D)
   Homo habilis
  done clear
  View Answer play_arrow

• question_answer134) To identify the genotype of one of the parents, which cross is most appropriate?
  A)
   Test cross          
  done clear
  B)
   Back cross
  done clear
  C)
   Either [a] or [b]      
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer135) The flow of genetic information is correctly indicated by
  A)
   DNA \[\to \]mRNA \[\to \] RNA \[\to \] proteins
  done clear
  B)
   DNA \[\to \] mRNA \[\to \] proteins
  done clear
  C)
   RNA \[\to \] DNA \[\to \] proteins
  done clear
  D)
   mRNA \[\to \] DNA \[\to \] proteins
  done clear
  View Answer play_arrow

• question_answer136) Who among the following is not involved in the formation of a eukaryotic transcription initiation complex?
  A)
   Transcription factors
  done clear
  B)
   SnRNA
  done clear
  C)
   RNA polymerase-11
  done clear
  D)
   Promoter
  done clear
  View Answer play_arrow

• question_answer137) An individual contracted an allergic substance and started wheezing and sneezing. In response the bodys cell secrete some chemicals against allergens, which among those given below are?
  A)
   Melatonin         
  done clear
  B)
   Histamine
  done clear
  C)
   Sebum           
  done clear
  D)
   Threonine
  done clear
  View Answer play_arrow

• question_answer138) Malignant cancer cells can cross the cellular barriers and spread themselves, causing cancer in any part of the body, this property of cancer cells is
  A)
   contact inhibition   
  done clear
  B)
   metastasis
  done clear
  C)
   malignancy         
  done clear
  D)
   cellular adherence
  done clear
  View Answer play_arrow

• question_answer139) LSD, morphine and bhang are derived from
  A)
   Theobroma, Papaver and Cannabis
  done clear
  B)
   Claviceps, Papaver and Cannabis
  done clear
  C)
   Cannabis, Erythroxylon and Theobroma
  done clear
  D)
   Rauwolfia, Cannabis and Papaver
  done clear
  View Answer play_arrow

• question_answer140) Splenic fever occurs in catties, goats, camel and sheep etc., and is caused by
  A)
   Corynebactehum pyogenes
  done clear
  B)
   Cowpox virus
  done clear
  C)
   Klebsiella pneumoniae
  done clear
  D)
   Bacillus anthracis
  done clear
  View Answer play_arrow

• question_answer141) Triticale the first man made cereal is a cross between
  A)
   wheat and millet
  done clear
  B)
   wheat and Sorghum
  done clear
  C)
   wheat and Brassica
  done clear
  D)
   wheat and rye
  done clear
  View Answer play_arrow

• question_answer142) After an organ transplant operation, a doctor prescribed an immuno suppressant drug to the patient. Which of the following would thus be included in for this purpose?
  A)
   Streptokinase       
  done clear
  B)
   Cyclosporin-A
  done clear
  C)
   Statins             
  done clear
  D)
   Cephalosporins
  done clear
  View Answer play_arrow

• question_answer143) The antisense construct of ACC synthase gene (RNA) was used in production of
  A)
   Bt maize            
  done clear
  B)
   Bt cotton
  done clear
  C)
   Golden rice         
  done clear
  D)
   Flavr savr (tomato)
  done clear
  View Answer play_arrow

• question_answer144) T-DNA, extensively used in genetic engineering procedures in extracted from
  A)
   Bacillus thermus aquaticus
  done clear
  B)
   Caenorhabditis elegans
  done clear
  C)
   Agrobacterium tumefaciens
  done clear
  D)
   Bacillus thuringiensis
  done clear
  View Answer play_arrow

• question_answer145) Persistent notochord is the feature of which among the following?
  A)
   Chondrichthyes     
  done clear
  B)
   Cyclostomata
  done clear
  C)
   Loa loa            
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer146) The most productive ecosystem is
  A)
   ocean             
  done clear
  B)
   desert
  done clear
  C)
   grasslands         
  done clear
  D)
   temperate forests
  done clear
  View Answer play_arrow

• question_answer147) Critically Endangered (CR) species are
  A)
   whose last individual has died
  done clear
  B)
   liable to become extinct if not allowed to realise their full biotic potential
  done clear
  C)
   those facing an extremely high risk of extinction in immediate future
  done clear
  D)
   low risk species
  done clear
  View Answer play_arrow

• question_answer148) Indias first national park was established in which year and known as?
  A)
   1970. Hailey National Park
  done clear
  B)
   1974, Bandipur National Park
  done clear
  C)
   1975, Gir National Park
  done clear
  D)
   1935. Jim Corbett National Park
  done clear
  View Answer play_arrow

• question_answer149) In which zone of the biosphere, no human activity is permitted?
  A)
   Buffer zone       
  done clear
  B)
   Core zone
  done clear
  C)
   Manipulation zone  
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer150) The thinning of egg shell and their premature breaking is causing a decline in bird population in certain areas. The probable reason for this could be
  A)
   biomagnification of DDT  
  done clear
  B)
   eutrophication by fertilisers
  done clear
  C)
   excessive use of organic manures
  done clear
  D)
   faulty calcium metabolism in birds
  done clear
  View Answer play_arrow