Solved papers for BHU PMT BHU PMT (Mains) Solved Paper-2008

done BHU PMT (Mains) Solved Paper-2008 Total Questions - 200

• question_answer1) If force (F), work (W) and velocity (v) are taken as fundamental quantities, then the dimensional formula of time (T) is
  A)
   \[[WFv]\]                          
  done clear
  B)
   \[[WF{{v}^{-1}}]\]
  done clear
  C)
   \[[{{W}^{-1}}{{F}^{-1}}v]\]                         
  done clear
  D)
   \[[W{{F}^{-1}}{{v}^{-1}}]\]
  done clear
  View Answer play_arrow

• question_answer2) A body is thrown vertically up with certain initial velocity. The potential and kinetic energies of the body are equal at a point P in its path. If the same body is thrown with double the velocity upwards, the ratio of potential and kinetic energies of the body when it crosses the same point, is
  A)
   1 : 1                                      
  done clear
  B)
   1 : 4
  done clear
  C)
   1 : 7                                      
  done clear
  D)
   1 : 8
  done clear
  View Answer play_arrow

• question_answer3) The apparent weight of a person inside a lift is \[{{w}_{1}}\]when lift moves up with a certain acceleration and is\[{{w}_{2}}\]when lift moves down with same acceleration. The weight of the person when lift moves up with constant speed is
  A)
   \[\frac{{{w}_{1}}+{{w}_{2}}}{2}\]                            
  done clear
  B)
   \[\frac{{{w}_{1}}-{{w}_{2}}}{2}\]
  done clear
  C)
   \[2{{w}_{1}}\]                                  
  done clear
  D)
   \[2{{w}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer4) In the figure, pendulum bob on left side is pulled aside to a height h from its initial position. After it is released it collides with the right pendulum bob at rest, which is of same mass.   After   the collision the two bobs stick together and raise to a height
  A)
   \[\frac{3h}{4}\]                                               
  done clear
  B)
   \[\frac{2h}{3}\]
  done clear
  C)
   \[\frac{h}{2}\]                                 
  done clear
  D)
   \[\frac{h}{4}\]
  done clear
  View Answer play_arrow

• question_answer5) The radius of gyration of a rod of length L and mass M about an axis perpendicular to its length and passing through a point at a distance L/3 from one of its ends is
  A)
   \[\frac{\sqrt{7}}{6}L\]                  
  done clear
  B)
   \[\frac{{{L}^{2}}}{9}\]
  done clear
  C)
   \[\frac{L}{3}\]                                  
  done clear
  D)
   \[\frac{\sqrt{5}}{2}L\]
  done clear
  View Answer play_arrow

• question_answer6) A ball of mass 0.6 kg attached to a light inextensible string rotates in a vertical circle of radius 0.75 m such that it has a speed of \[5\text{ }m{{s}^{-1}}\]when the string is horizontal. Tension in string when it is horizontal on other side is \[(g=10\,m{{s}^{-2}})\]
  A)
   30 N                                     
  done clear
  B)
   26 N
  done clear
  C)
   20 N                                     
  done clear
  D)
   6N
  done clear
  View Answer play_arrow

• question_answer7) A body of mass m is raised from the surface of the earth to a height nR (R = radius of earth). Magnitude of the change in the gravitational potential energy of the body is (g = acceleration due to gravity on the surface of earth)
  A)
   \[\left( \frac{n}{n+1} \right)mgR\]                         
  done clear
  B)
   \[\left( \frac{n-1}{n} \right)mgR\]
  done clear
  C)
   \[\left( \frac{mgR}{n} \right)\]                 
  done clear
  D)
   \[\frac{mgR}{(n-1)}\]
  done clear
  View Answer play_arrow

• question_answer8) The displacement of a particle of mass 3 g executing simple harmonic motion is given by \[Y=3\sin (0.2t)\]in SI units. The kinetic energy of the particle at a point which is at a distance equal to\[\frac{1}{3}\]of its amplitude from its mean position is
  A)
   \[12\times {{10}^{3}}J\]                              
  done clear
  B)
   \[25\times {{10}^{-3}}J\]
  done clear
  C)
   \[4.8\times {{10}^{-3}}J\]                           
  done clear
  D)
   \[0.24\times {{10}^{-3}}J\]
  done clear
  View Answer play_arrow

• question_answer9) A liquid drop of radius R breaks into 64 tiny drops each of radius r. If the surface tension of the liquid is. T, then the gain in energy is
  A)
  \[48\pi {{R}^{2}}T\]        
  done clear
  B)
  \[12\pi {{r}^{2}}T\]
  done clear
  C)
  \[96\pi {{R}^{2}}T\]                        
  done clear
  D)
  \[192\pi {{r}^{2}}T\]
  done clear
  View Answer play_arrow

• question_answer10) Two rods of different materials with coefficients of linear thermal expansion\[{{\alpha }_{1}},{{\alpha }_{2}}\] and Young's moduli\[{{Y}_{1}}\]and\[{{Y}_{2}}\]respectively are fixed between two rigid walls. They are heated to have the same increase in temperature. If the rods do not bend and if then the thermal stresses developed in the two rods will be equal when\[{{Y}_{1}}:{{Y}_{2}}\]is equal to
  A)
   2 : 3                                      
  done clear
  B)
   2 : 5
  done clear
  C)
   3 : 2                                      
  done clear
  D)
   5 : 2
  done clear
  View Answer play_arrow

• question_answer11) For an adiabatic process, the relation between V and T is given by
  A)
   \[T{{V}^{\gamma }}=\]constant              
  done clear
  B)
  \[{{T}^{\gamma }}V=\]constant
  done clear
  C)
   \[T{{V}^{1-\gamma }}=\]constant          
  done clear
  D)
  \[T{{V}^{\gamma -1}}=\]constant
  done clear
  View Answer play_arrow

• question_answer12) The power of a black body at temperature 200 K is 544 W. Its surface area is \[(\sigma =5.67\times {{10}^{-8}}W{{m}^{-2}}{{K}^{-4}})\]
  A)
   \[6\times {{10}^{-2}}{{m}^{2}}\]              
  done clear
  B)
   \[6{{m}^{2}}\]
  done clear
  C)
   \[6\times {{10}^{-6}}{{m}^{2}}\]              
  done clear
  D)
   \[6\times {{10}^{2}}{{m}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer13) A uniform wire of linear density\[0.004\text{ }kg-{{m}^{-1}}\]when stretched between two rigid supports with a tension \[3.6\times {{10}^{2}}N,\] resonates with a frequency of 420 Hz. The next harmonic frequency with which the wire resonates is 490 Hz. The length of the wire in metres is
  A)
   1.41                                      
  done clear
  B)
   2.14
  done clear
  C)
    2.41                                     
  done clear
  D)
   3.14
  done clear
  View Answer play_arrow

• question_answer14) The velocities of light in two different mediums are\[2\times {{10}^{8}}m{{s}^{-1}}\]and\[2.5\times {{10}^{8}}m{{s}^{-1}}\]respectively. The critical angle for these mediums is
  A)
   \[{{\sin }^{-1}}\left( \frac{1}{5} \right)\]                               
  done clear
  B)
   \[{{\sin }^{-1}}\left( \frac{4}{5} \right)\]
  done clear
  C)
    \[{{\sin }^{-1}}\left( \frac{1}{2} \right)\]                              
  done clear
  D)
   \[{{\sin }^{-1}}\left( \frac{1}{4} \right)\]
  done clear
  View Answer play_arrow

• question_answer15) A diverging meniscus lens of 1.5 refractive index has concave surfaces of radii 3 and 4 cm. The position of the image, if an object is placed 12 cm in front of the lens, is
  A)
   7cm                                      
  done clear
  B)
  \[-8cm\]
  done clear
  C)
    9cm                                     
  done clear
  D)
   10cm
  done clear
  View Answer play_arrow

• question_answer16) A bar magnet suspended freely in a uniform magnetic field is vibrating with a time period of 3 s. If the field strength is increased to 4 times of the earlier field strength, the time period will be (in seconds)
  A)
   12                                         
  done clear
  B)
   6
  done clear
  C)
   1.5                                        
  done clear
  D)
   0.75
  done clear
  View Answer play_arrow

• question_answer17) The equivalent capacity between the points\[X\]and Y in the circuit with\[C=1\text{ }\mu F\]is
  A)
   \[2\mu F\]                        
  done clear
  B)
   \[3\mu F\]
  done clear
  C)
   \[1\mu F\]                                        
  done clear
  D)
   \[0.5\mu F\]
  done clear
  View Answer play_arrow

• question_answer18) Three charges\[1\mu C,1\mu C\]and\[2\mu C\]are kept at the vertices A, B and C of an equilateral triangle force on the charge at C is
  A)
   0.9 N                                    
  done clear
  B)
   1.8 N
  done clear
  C)
   2.72 N                 
  done clear
  D)
   3.6 N
  done clear
  View Answer play_arrow

• question_answer19) Two unknown resistances\[X\]and Y are connected to left and right gaps of a metre bridge and the balancing point is obtained at 80 cm from left. When a\[10\,\Omega \]resistance is connected in parallel to\[X\]the balancing point is 50 cm from left. The values of\[X\]and Y respectively are
  A)
   400, 90                                
  done clear
  B)
   300, 7.50
  done clear
  C)
   200, 60                                
  done clear
  D)
   100, 30
  done clear
  View Answer play_arrow

• question_answer20) The current in a circuit containing a battery connected to 20 resistance is 0.9 A. When a resistance of 70 is connected to the same battery, the current observed in the circuit is 0.3 A. Then the internal resistance of the battery is
  A)
   0.10                                      
  done clear
  B)
   0.50
  done clear
  C)
   10                                         
  done clear
  D)
   Zero
  done clear
  View Answer play_arrow

• question_answer21) The emf induced in a secondary coil is 20000 V when the current breaks in the primary coil. The mutual inductance is 5 H and the current reaches to zero in\[{{10}^{-4}}s\]in the primary. The maximum current in the primary before it breaks is
  A)
   0.1 A                    
  done clear
  B)
   0.4 A
  done clear
  C)
   0.6 A                                    
  done clear
  D)
   0.8 A
  done clear
  View Answer play_arrow

• question_answer22) Two coils are wound on the same iron rod so that the flux generated by one passes through the other. The primary coil has\[{{N}_{p}}\]turns in it and when a current 2 A flows through it the flux in it is\[2.5\times {{10}^{-4}}Wb\]. If the secondary coil has 12 turns the mutual inductance of the coils is (assume the secondary coil is in open circuit)
  A)
   \[10\times {{10}^{-4}}H\]           
  done clear
  B)
   \[15\times {{10}^{-4}}H\]
  done clear
  C)
   \[20\times {{10}^{-4}}H\]           
  done clear
  D)
   \[25\times {{10}^{-4}}H\]
  done clear
  View Answer play_arrow

• question_answer23) The velocity of the most energetic electrons emitted from a metallic surface is doubled when the frequency v of the incident radiation is doubled. The work function of this metal is
  A)
   \[\frac{hv}{4}\]                                               
  done clear
  B)
   \[\frac{hv}{3}\]
  done clear
  C)
   \[\frac{hv}{2}\]                                               
  done clear
  D)
   \[\frac{2hv}{3}\]
  done clear
  View Answer play_arrow

• question_answer24) A proton and an alpha particle are accelerated through the same potential difference. The ratio of the wavelengths associated with proton and alpha particle respectively is
  A)
   \[1:2\sqrt{2}\]                 
  done clear
  B)
   2 : 1
  done clear
  C)
   \[2\sqrt{2}:1\]                 
  done clear
  D)
   4 : 1
  done clear
  View Answer play_arrow

• question_answer25) In a transistor circuit the base current changes from\[30\text{ }\mu A\]to\[90\text{ }\mu A\]. If the current gain of the transistor is 30, the change in the collector current is
  A)
   4mA                                     
  done clear
  B)
   2 mA
  done clear
  C)
   3.6mA                                 
  done clear
  D)
   1.8mA
  done clear
  View Answer play_arrow

• question_answer26) In Young's double slit experiment, white light is used. The separation between the slits is b. The screen is at a distance\[d(d>>b)\]from the slits. Some wavelengths are missing exactly in front of one slit. These wavelengths are (1) \[\frac{{{b}^{2}}}{d}\]                                             (2) \[\frac{2{{b}^{2}}}{d}\] (3) \[\frac{{{b}^{3}}}{3d}\]                                           (4) \[\frac{2{{b}^{2}}}{3d}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer27) A plane mirror reflecting a ray of incident light is rotated through an-abgle\[\theta \]about an axis through the point of incidence in the plane of the mirror perpendicular to the plane of incidence, then (1) the reflected ray does not rotate (2) the reflected ray rotates through angle\[2\theta \] (3) the reflected ray rotates through an angle\[\theta \] (4) the incident ray is fixed
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer28) An X-ray tube is operating at 50 kV and 20 mA. The target material of the tube has a mass of\[1.0\,kg\]and specific hea\[495\,Jk{{g}^{-10}}{{C}^{-1}}\]. One percent of the supplied electric power is converted into X-rays and the entire remaining energy goes into heating the target. Then (1) a suitable target material must have a high melting temperature (2) the average rate of rise of temperature of target would be\[2{}^\circ C/s\] (3) the minimum wavelength of the X-rays emittled is about\[0.25\times {{10}^{-10}}m\] (4) a suitable target material must have low thermal conductivity
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer29) In an AC circuit the power factor (1) is unity when the circuit contains as ideal resistance only (2) is zero when the circuit contains an ideal inductance only (3) is zero when the circuit contains an ideal resistance only (4) is unity when the circuit contains an ideal inductance only
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer30) Two different coils have self-inductance\[{{L}_{1}}=8\] \[mH,\text{ }{{L}_{2}}=2\text{ }mH\]. The current in one coil is increased at a constant rate. The current in the second coil is also increased at the same rate. At a certain instant of time the power given to the coil is same. At that time the current, the induced voltage and the energy stored in the first coil are\[{{i}_{1}},{{v}_{1}}\]and\[{{w}_{1}}\]respectively. Corresponding values for the second coil at the same instant are\[{{i}_{1}},{{v}_{2}}\]and \[{{w}_{2}}\].Then (1) \[\frac{{{i}_{1}}}{{{i}_{2}}}=\frac{1}{4}\]                          (2) \[\frac{{{w}_{2}}}{{{w}_{1}}}=4\] (3) \[\frac{{{v}_{2}}}{{{v}_{1}}}=\frac{1}{4}\]                       (4) \[\frac{{{i}_{1}}}{{{i}_{2}}}=48\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer31) Which of the following statements are true about the magnetic susceptibility\[{{\chi }_{m}}\]of paramagnetic substance? (1) Value of\[{{\chi }_{m}}\]is inversely proportional to the absolute temperature of the sample (2)\[{{\chi }_{m}}\]is positive at all temperature (3)\[{{\chi }_{m}}\]is negative at all temperature (4)\[{{\chi }_{m}}\]does not depend on the temperature of the sample
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer32) \[{{H}^{+}},H{{e}^{+}}\]and\[{{O}^{++}}\]ions having same kinetic energy pass through a region of space filled with uniform magnetic field B directed perpendicular to the velocity of ions. The mass of the ions\[{{H}^{+}},H{{e}^{+}}\]are\[{{O}^{++}}\]respectively in the ratio 1: 4:16. As a result (1) \[{{H}^{+}}\]ion will be deflected most (2)\[{{O}^{++}}\]ions will be deflected least (3)\[H{{e}^{+}}\]and\[{{O}^{++}}\]ions will suffer same deflection (4) All ions will suffer the same deflection
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer33) A steel wire has a resistance twice that of an aluminium wire. Both of them are connected with a constant voltage supply. More that will be dissipated in (1) steel wire when both are connected in parallel (2) steel wire when both are connected in series (3) aluminium wire when both are connected in series (4) aluminium wire when both are connected in parallel
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer34) Five equal resistances each of value R are connected in a form shown. The equivalent resistance of the network (1) between the points B and D is\[\frac{R}{2}\] (2) between the points A and C is R (3) between the points B and D is R (4) between the points A and C is \[\frac{R}{2}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer35) Consider the points lying on a straight line joining two fixed opposite charges. Between the charges there is (1) no point where electric field is zero (2) only one point where electric field is zero (3) only one point where potential is zero (4) no point where potential is zero
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer36) A transverse sinusoidal wave of amplitude a, wavelength\[\lambda \]and frequency v is travelling on a streched string. The maximum speed of any point on the string is v/10, where v is the speed of the propagation of the wave. If \[a={{10}^{-3}}m\]and\[v=10\text{ }m{{s}^{-1}},\]then\[\lambda \]and v are given by (1) \[\lambda =2\pi \times {{10}^{-2}}m\]             (2) \[\lambda ={{10}^{-3}}m\] (3) \[v=\frac{{{10}^{3}}}{2\pi }Hz\]                           (4) \[v={{10}^{4}}Hz\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer37) Three simple harmonic motions in the same direction having the same amplitude a and same period are superposed. If each differs in phase from the next by\[45{}^\circ ,\] then (1) the resultant amplitude is\[(1+\sqrt{2})a\] (2) the phase of the resultant motion relative to the first is\[90{}^\circ \] (3) the energy associated with the resulting motion is\[(3+2\sqrt{2})\]times the energy associated with any single motion (4) the resulting motion is not simple harmonic
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer38) A gas in container A is in thermal equilibrium with another gas in container B both contains equal masses of the two gases in the respective containers. Which of the following can be true? (1) \[{{p}_{A}}{{V}_{A}}={{p}_{B}}{{V}_{B}}\] (2) \[{{p}_{A}}={{p}_{B}},{{V}_{A}}\ne {{V}_{B}}\] (3) \[\frac{{{p}_{A}}}{{{V}_{A}}}=\frac{{{p}_{B}}}{{{V}_{B}}}\] (4) \[{{p}_{A}}\ne {{p}_{B}},{{V}_{A}}={{V}_{B}}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer39) The tank is filled upto a height h with a liquid and is placed on a platform of height h from the ground. To get maximum range\[{{x}_{m}}a\]small hole is punched at a distance of y from the free surface of the liquid. Then (1) \[{{x}_{m}}=2h\]                       (2) \[{{x}_{m}}=1.5h\] (3) \[y=h\]                          (4)\[y=0.75\,h\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer40) An air bubble in a water tank rises from the bottom to the top. Which of the following statements are true? (1) Bubble rises upwards because pressure at the bottom in less than that at the top (2) Bubble rises upwords because pressure at the bottom is greater than that at the top (3) As the bubble rises its size decreases (4) As the bubble rises its size increases
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer41) The radius and mass of earth are increased by 0.5%.Which of the following are true at the surface of earth?  g will decrease  Escape velocity will remain unchanged  Potential energy will remain unchanged  g will increase
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer42) One solid sphere and a disc of same radius are falling along an inclined plane without slip. One reaches earlier than the other due (1) different size (2) different radius of gyration (3) different friction (4) different moment of inertia
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer43) A ball hits a floor and rebounds after an inelastic collision. In this case (1) the total momentum of the ball and the earth is conserved (2) the total energy of the ball and the earth is conserved (3) the momentum of the ball just after the collision is same as that just before the collision (4) the machanical energy of the ball remains the same during the collision
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer44) Trajectories of two projectiles are shown in figure. Let\[{{T}_{1}}\]and\[{{T}_{2}}\]be the time periods and\[{{u}_{1}}\] and\[{{u}_{2}}\]their speeds of projection. Then (1) \[{{T}_{2}}>{{T}_{1}}\]                             (2) \[{{T}_{1}}={{T}_{2}}\] (3) \[{{u}_{1}}>{{u}_{2}}\]                            (4) \[{{u}_{1}}<{{u}_{2}}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer45) When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts (1) in the backward direction on the front wheel and in the forward direction on the rear wheel (2) in the forward direction on the front wheel and in the backward direction on the rear wheel (3) in the backward direction on both front and rear wheels (4) in the forward direction on both front and rear wheels
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer46) Figure shows the displacement of a particle going along the X-axis as a function of time. The force acting on the particle is zero in the region (1) AB                                    (2) BC (3) CD                                    (4) DE
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer47) Which of the following pairs have same dimensions? (1) Angular momentum and work (2) Torque and work (3) Energy and Young's modulus (4) Light year and wavelength
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer48) The motion of a body is given by equation \[\frac{d\,v(t)}{dt}=6.0-3v(t),\]where\[v(t)\]is the speed in m/s and t in sec. If body was at rest at\[t=0\] (1) the terminal speed is 2.0 m/s (2) the speed varies with the time as \[v(t)=2(1-{{e}^{-3t}})m/s\] (3) the magnitude of initial acceleration is\[6.0\text{ }m/{{s}^{2}}\] (4) the speed is 0.1 m/s when the acceleration if half the initial value
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer49) Holes are charge carriers in (1) intrinsic semiconductor (2) ionic solids (3) P-type semiconductors (4) metals
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer50) A radioactive substance emits (1) electromagnetic radiations (2) electron revolving around the nucleous (3) charged particles (4) neutral particles
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
    2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer51) When mercuric iodide is added to the aqueous solution of potassium iodide
  A)
   freezing point is raised
  done clear
  B)
   freezing point is lowered
  done clear
  C)
   freezing point does not change
  done clear
  D)
   boiling point is raised
  done clear
  View Answer play_arrow

• question_answer52) In which of the following nuclear reaction X and Y are isotopes?
  A)
  \[X(\alpha ,\text{ }p)Y\]               
  done clear
  B)
  \[X(\alpha ,\text{ n})Y\]
  done clear
  C)
   \[X(p,\text{ n})Y\]         
  done clear
  D)
  \[X(d,\text{ p})Y\]
  done clear
  View Answer play_arrow

• question_answer53) Which one of the following elements does not form the compound,\[{{M}_{4}}{{O}_{10}}\](M = element)?
  A)
   P                                           
  done clear
  B)
   Sb
  done clear
  C)
   Bi                                          
  done clear
  D)
   As
  done clear
  View Answer play_arrow

• question_answer54) The ions\[{{N}^{3-}},{{O}^{2-}},{{F}^{-}},N{{a}^{+}}M{{g}^{2+}}\]are isoelectronic. Their ionic radii show
  A)
   an increase from\[{{N}^{3-}}\]to\[{{F}^{-}}\]and then decrease from\[N{{a}^{+}}\]to\[M{{g}^{2+}}\]
  done clear
  B)
   a decrease from\[{{N}^{3-}}\]to\[{{F}^{-}}\]and then increase from\[N{{a}^{+}}\]to\[M{{g}^{2+}}\]
  done clear
  C)
   a significant increase from\[{{N}^{3-}}\]to\[M{{g}^{2+}}\]
  done clear
  D)
   a significant decrease from\[{{N}^{3-}}\]to\[M{{g}^{2+}}\]
  done clear
  View Answer play_arrow

• question_answer55) The value of Planck's constant is\[6.63\times {{10}^{-34}}\] Js. The velocity of light is\[3.0\times {{10}^{8}}m{{s}^{-1}}\]. Which value is closest to the wavelength (in nm) of a quantum of light with frequency of\[8\times {{10}^{-1}}{{s}^{-1}}\]?
  A)
  \[4\times {{10}^{1}}\]                                   
  done clear
  B)
  \[3\times {{10}^{7}}\]
  done clear
  C)
  \[2\times {{10}^{-25}}\]                               
  done clear
  D)
  \[5\times {{10}^{-18}}\]  
  done clear
  View Answer play_arrow

• question_answer56) Which of the following compounds yields acetone on ozonolysis followed by hydrolysis?
  A)
   2-methyl-2-butene
  done clear
  B)
   3-methyl-1-butene
  done clear
  C)
   Cyclopentane
  done clear
  D)
   2-methyl-1-butene
  done clear
  View Answer play_arrow

• question_answer57) The number of\[\sigma \]and\[\pi \]bonds in tetrocyano ethylene, are respectively
  A)
   8, 9                                       
  done clear
  B)
   9, 1
  done clear
  C)
    5, 1                                      
  done clear
  D)
   9, 9
  done clear
  View Answer play_arrow

• question_answer58) When nitrobenzene reacts with\[HCl\]in presence of Sn, the product obtained, is
  A)
   \[{{C}_{6}}{{H}_{5}}N=N{{C}_{6}}{{H}_{5}}\]
  done clear
  B)
   \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]
  done clear
  C)
   \[{{C}_{6}}{{H}_{5}}NH-NH{{C}_{6}}{{H}_{5}}\]
  done clear
  D)
   \[{{C}_{6}}{{H}_{5}}NHOH\]
  done clear
  View Answer play_arrow

• question_answer59) 250 mL of a\[N{{a}_{2}}C{{O}_{3}}\]solution contains 2.65 g of\[N{{a}_{2}}CO\text{ }3.10\text{ }mL\]of this solution is added to \[x\text{ }mL\]of water to obtain\[0.001\text{ }M\text{ }N{{a}_{2}}C{{O}_{3}}\]solution. The value of\[x\]is (molecular weight of \[N{{a}_{2}}C{{O}_{3}}={{10}^{6}}\])
  A)
   1000                                     
  done clear
  B)
   990
  done clear
  C)
    9990                                    
  done clear
  D)
   90
  done clear
  View Answer play_arrow

• question_answer60) Which one of the following is a chain growth polymer?
  A)
   Starch                 
  done clear
  B)
   Nucleic acid
  done clear
  C)
   Polystyrene                      
  done clear
  D)
   Protein
  done clear
  View Answer play_arrow

• question_answer61) Which one contains both iron and copper?
  A)
   Cuprite               
  done clear
  B)
   Chalcocite
  done clear
  C)
   Chalcopyrite                     
  done clear
  D)
   Malachite
  done clear
  View Answer play_arrow

• question_answer62) Which of the following pairs of a chemical reaction is certain to result in a spontaneous reaction?
  A)
   Exothermic and decreasing disorder
  done clear
  B)
   Endothermic and increasing disorder
  done clear
  C)
   Exothermic and increasing disorder
  done clear
  D)
   Endothermic and decreasing disorder
  done clear
  View Answer play_arrow

• question_answer63) Froth floatation process is used to concentrate sulphide ore. The sulphide ore which is not concentrated by this process, is
  A)
   argentite           
  done clear
  B)
   galena
  done clear
  C)
   copper pyrite                   
  done clear
  D)
   sphalerite
  done clear
  View Answer play_arrow

• question_answer64) Reduction of aldehydes and ketones into hydrocarbons using hydraiene and sodium ethoxide is called
  A)
   Clemmensen reduction
  done clear
  B)
   Cope reduction
  done clear
  C)
    Dow reduction
  done clear
  D)
   Wolff-Kishner reduction
  done clear
  View Answer play_arrow

• question_answer65) Which one of the following is a diamagnetic ion?
  A)
   \[C{{o}^{2+}}\]                                
  done clear
  B)
  \[C{{u}^{2+}}\]
  done clear
  C)
    \[M{{n}^{2+}}\]                             
  done clear
  D)
  \[S{{c}^{3+}}\]
  done clear
  View Answer play_arrow

• question_answer66) How many moles of acidified\[FeS{{O}_{4}}\]can be completely oxidised by one mole of\[KMn{{O}_{4}}\]?
  A)
   10                                         
  done clear
  B)
   5
  done clear
  C)
   6                                            
  done clear
  D)
   2
  done clear
  View Answer play_arrow

• question_answer67) Hybridisation of nitrogen atom in pyridine
  A)
  \[s{{p}^{3}}\]                                    
  done clear
  B)
   \[s{{p}^{2}}\]
  done clear
  C)
  \[sp\]                                   
  done clear
  D)
   \[s{{p}^{3}}d\]
  done clear
  View Answer play_arrow

• question_answer68) The IUPAC name of Weston is
  A)
   1, 1, 2, 2-tetrachloroethane
  done clear
  B)
   1, 1,-2, 2-tetrachloroethene
  done clear
  C)
   1, 2-dichloroethyne
  done clear
  D)
   1, 3, 3, 3, -tetrachloroprop-1-yne
  done clear
  View Answer play_arrow

• question_answer69) The solubility in water of a sparingly soluble salt\[A{{B}_{2}}\]is\[1.0\times {{10}^{-5}}mol\text{ }{{L}^{-1}}\]. Its solubility product will be
  A)
  \[4\times {{10}^{-15}}\]               
  done clear
  B)
  \[4\times {{10}^{-10}}\]
  done clear
  C)
   \[1\times {{10}^{-15}}\]              
  done clear
  D)
  \[1\times {{10}^{-10}}\]
  done clear
  View Answer play_arrow

• question_answer70) The standard emf of a cell, involving one electron change is found to be 0.591 V at\[\,25{}^\circ C\]. The equilibrium constant of the reaction is (\[F=96500\text{ }C\text{ }mo{{l}^{-1}}\])
  A)
  \[1.0\times {{10}^{1}}\]                
  done clear
  B)
  \[1.0\times {{10}^{5}}\]
  done clear
  C)
   \[1.0\times g{{10}^{10}}\]          
  done clear
  D)
  \[1.0\times {{10}^{30}}\]
  done clear
  View Answer play_arrow

• question_answer71) End product of the following reaction sequence is \[C{{H}_{3}}C{{H}_{2}}COOH\xrightarrow[red\,P]{C{{l}_{2}}}X\xrightarrow[KOH]{Alcoholic}Y\]
  A)
   \[C{{H}_{3}}\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{CH}}\,COOH\]       
  done clear
  B)
   \[\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{C{{H}_{2}}}}\,C{{H}_{2}}COOH\]
  done clear
  C)
  \[C{{H}_{2}}=CHCOOH\]              
  done clear
  D)
  \[\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C{{H}_{2}}}}\,\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{CH}}\,COOH\]
  done clear
  View Answer play_arrow

• question_answer72) Consider following two reactions \[A\xrightarrow[{}]{{}}Product,-\frac{d[A]}{dt}={{k}_{1}}{{[A]}^{0}}\] \[B\xrightarrow[{}]{{}}Product,-\frac{d[B]}{dt}={{k}_{2}}{{[B]}^{0}}\] \[{{k}_{1}}\]and\[{{k}_{2}}\]are expressed in terms of molarity\[(mol\text{ }{{L}^{-1}})\]and time\[({{s}^{-1}})\]as
  A)
   \[{{s}^{-1}},\text{ }M{{s}^{-1}}\text{ }{{L}^{-1}}\]            
  done clear
  B)
  \[M{{s}^{-1}},\text{ }M{{s}^{-1}}\]
  done clear
  C)
   \[{{s}^{-1}},\text{ }{{M}^{-1}}\text{ }{{s}^{-1}}\]              
  done clear
  D)
  \[M{{s}^{-1}},\text{ }{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer73) Which of the following is not is structural with\[SiC{{l}_{4}}\]?
  A)
  \[SC{{l}_{4}}\]                                   
  done clear
  B)
   \[SO_{4}^{2-}\]
  done clear
  C)
    \[PO_{4}^{3-}\]                             
  done clear
  D)
   \[NH_{4}^{+}\]
  done clear
  View Answer play_arrow

• question_answer74) Which one of the following processes will produce hard water?
  A)
   Saturation of water with\[CaC{{O}_{3}}\]
  done clear
  B)
   Saturation of water with\[MgC{{O}_{3}}\]
  done clear
  C)
   Saturation of water with\[CaS{{O}_{4}}\]
  done clear
  D)
   Addition of\[N{{a}_{2}}S{{O}_{4}}\]to water
  done clear
  View Answer play_arrow

• question_answer75) At same temperature, the ratio of average velocity of\[S{{O}_{3}}\]to\[C{{H}_{4}}\]is
  A)
   2 : 3                                      
  done clear
  B)
   3 : 4
  done clear
  C)
   1 : 2                                      
  done clear
  D)
   1 : 6
  done clear
  View Answer play_arrow

• question_answer76) For the reaction \[{{C}_{6}}{{H}_{4}}(g)+{{H}_{2}}{{C}_{2}}{{H}_{6}};\]\[\Delta H=-32.7\,k\,cal\] The equilibrium concentration of\[{{C}_{2}}{{H}_{4}}\]can be increased by (1) decreasing the temperature (2) decreasing the pressure (3) removing some \[{{C}_{2}}{{H}_{6}}\] (4) removing some\[{{H}_{2}}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer77) The reagents,\[N{{H}_{4}}Cl\]and aqueous\[N{{H}_{3}}\]will precipitate (1) \[F{{e}^{3+}}\]                                           (2) \[A{{l}^{3+}}\] (3) \[M{{g}^{2+}}\]                                          (4)\[Z{{n}^{2+}}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer78) The species having bond order three are (1) \[C{{N}^{-}}\]                              (2) \[O_{2}^{-}\] (3) \[N{{O}^{+}}\]                                            (4) \[C{{N}^{+}}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer79) A solution containing components A and B exhibits positive deviation from Raoult?s law only when (1) \[\Delta {{V}_{mixing}}=+ve\] (2) \[\Delta {{H}_{mixing}}=-ve\] (3)\[A-B\]attraction forces\[<A-A\]and\[B-B\] attraction forces. (4)\[A-B\]attraction forces\[>A-A\]and\[B-B\] attraction forces.
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer80) Which of the following compounds will give a yellow precipitate with iodine and alkali? (1) 2-hydroxy propane (2) Acetophenone (3) Methyl acetate          (4) Acetamide
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer81) Geometrical isomerism is exhibited by (1) 2-chloro but-2-ene (2) but-2-ene (3) 3-methyl pent-2-ene (4) 2-methyl but-2-ene
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer82) Diethyl ether is obtained by the reaction of (1) sodium ethoxide with methyl iodide (2) sodium ethoxide with ethyl chloride (3) ethanol with red phosphorus (4) ethanol with cone.\[{{H}_{2}}S{{O}_{4}}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer83) If\[C{{l}_{2}}\]is passed into hot\[NaOH\]solution, oxidation number of chlorine changes from (1) 0 to + 5         (2) 0 to -1 (3) 0 to +1          (4) 0 to +7
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer84) Which of the following statements are true for hydrophilic solution? (1) They do not require electrolytes for stability. (2) Their coagulation is irreversible. (3) Their surface tension is usually lower than that of dispersion medium. (4) Their viscosity is of the order of that of water.
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer85) \[{{H}^{+}},{{D}^{+}}\] and\[{{T}^{+}}\] differ in all except in (1) number of electrons (2) number of neutrons (3) electronic configuration (4) ionic mass
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer86) Following reaction (s) is/are involved in thermite process. (1) \[3M{{n}_{3}}{{O}_{4}}+8Al\xrightarrow[{}]{{}}9Mn+4A{{l}_{2}}{{O}_{3}}\] (2) \[C{{r}_{2}}{{O}_{3}}+2Al\xrightarrow{{}}A{{l}_{2}}{{O}_{3}}+2Cr\] (3) \[{{B}_{2}}{{O}_{3}}+2Al\xrightarrow{{}}2B+A{{l}_{2}}{{O}_{3}}\] (4) \[2Fe+A{{l}_{2}}{{O}_{3}}\xrightarrow{{}}2Al+F{{e}_{2}}{{O}_{3}}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer87) Phosphine is obtained by (1) \[C{{a}_{3}}{{P}_{2}}+{{H}_{2}}O\xrightarrow{{}}\] (2) \[{{P}_{4}}+NaOH\xrightarrow{{}}\] (3) \[CHC{{l}_{3}}+{{O}_{2}}\xrightarrow{{}}\] (4) \[CC{{l}_{4}}+{{O}_{2}}\xrightarrow{{}}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer88) Which will not give metal on heating? (1)\[A{{g}_{2}}C{{O}_{3}}\]         (2)\[ZnC{{O}_{3}}\] (3)\[HgO\]                                          (4)\[CuO\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer89) A new\[CC\]bond formation is possible in (1) Cannizaro's reaction (2) Friedel-Craft's reaction (3) Clemmensen reduction (4) Reimer-Tiemann reaction
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer90) Number of atoms in 560 g of Fe (atomic mass\[56\text{ }g\text{ }mo{{l}^{-1}}\]) is (1) twice that of 70 g N (2) half that of 20 gH (3) half that of 70 gC (4) twice that of 40 g N
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer91) On mixing a certain alkane with chlorine and irradiating it with ultraviolet light, it forms two monochloro derivatives. The alkane could be (1) propane                        (2) pentane (3) iso-butane                   (4) neo-pentane
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer92) Which of the following can show coordination isomerism? (1) \[[Cu{{(N{{H}_{3}})}_{4}}][PtC{{l}_{4}}]\] (2) \[{{[Fe{{(N{{H}_{3}})}_{6}}]}_{2}}{{[Pt{{(CN)}_{6}}]}_{3}}\] (3) \[[Co{{(N{{H}_{3}})}_{6}}][Cr{{({{C}_{2}}{{O}_{4}})}_{3}}]\] (4) \[[Pt{{(en)}_{3}}]{{(S{{O}_{4}})}_{2}}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer93) Following conversion can be carried out by using (1)\[KMn{{O}_{4}}\]in alcohol (2)\[NaClO\] in a buffer (3)\[A{{g}_{2}}O/NaOH,\text{ }HCl\] (4)\[FeC{{l}_{3}}\]in a buffer
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer94) Which of the following properties are related to physical adsorption? (1) Reversible (2) Formation of unimolecular layer (3) Low heat of adsorption (4) Occurs at high temperature
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer95) The drugs used to kill the organisms in the body (bactericidal drugs) are (1) serotonin                      (2) of loxacin (3) aspirin           (4) penicillin
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer96) The base present in both DNA and RNA are (1) thymine                        (2) cytosine (3) uracil                               (4) adenine
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer97) In a cell\[Zn||Z{{n}^{2+}}||Pt\,{{H}^{+}}|{{H}_{2}},\]the addition of\[{{H}_{2}}S{{O}_{4}}\]to cathode compartment, will (1) decrease the E (2) increase the E (3) shift equilibrium to left (4) shift equilibrium to right
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer98) Which of the following compounds contain chiral carbon atom? (1) 2-chloropentane (2) 1-chloro-2-methylpentane (3) 3-chloro-2-methylpentane (4) 1-chloropentane
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer99) Excess of\[KI\]reacts with\[CuS{{O}_{4}}\]solution and then\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\]solution is added to it. The correct statements for this reaction are (1) \[C{{u}_{2}}{{I}_{2}}\]is formed (2)\[Cu{{I}_{2}}\]is formed (3)\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\]is oxidised (4) evolved\[{{I}_{2}}\]is oxidised.
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer100) Select the correct statement (s). (1)\[Ar,Kr\]and\[Xe\]form clathrate. (2)\[Xe{{O}_{3}}\]has four\[\sigma \]and four\[\pi \]bonds. (3) In white phosphorus four lone pairs of electrons are present. (4) In diborane boron is\[s{{p}^{2}}\]hybridised.
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer101) 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_answer102) During strenous exercise, glucose is converted into
  A)
   glycogen                            
  done clear
  B)
   pyruvic acid
  done clear
  C)
   starch                                  
  done clear
  D)
   lactic add
  done clear
  View Answer play_arrow

• question_answer103) 'AIDS' is due to
  A)
   destruction of killer-T-cells
  done clear
  B)
   destruction of helper-T-cells
  done clear
  C)
   lack of mrerferons
  done clear
  D)
   autoimmunity
  done clear
  View Answer play_arrow

• question_answer104) Adaptation of eyes in dark is due to
  A)
   depletion of vision pigment in rods
  done clear
  B)
   depletion of vision pigment in cones
  done clear
  C)
   repletion of vision pigment in rods
  done clear
  D)
   repletion of vision pigments in cones
  done clear
  View Answer play_arrow

• question_answer105) Which of the following is important for muscle contraction and nerve impulse transmission ?
  A)
   \[C{{a}^{2+}}\]ions                        
  done clear
  B)
   \[M{{g}^{2+}}\]ions
  done clear
  C)
   Both  and           
  done clear
  D)
   \[F{{e}^{2+}}\]ions
  done clear
  View Answer play_arrow

• question_answer106) Which of the following is a respiratory disease?
  A)
   Polio                                    
  done clear
  B)
   Arithrids
  done clear
  C)
    Asthma                             
  done clear
  D)
   Cancer
  done clear
  View Answer play_arrow

• question_answer107) The extra structure that provides nutrition to the embryo is
  A)
   umbilicus -                        
  done clear
  B)
   amnion
  done clear
  C)
    chorion                              
  done clear
  D)
   placenta
  done clear
  View Answer play_arrow

• question_answer108) Heparin is synthesized in
  A)
   liver                                     
  done clear
  B)
   kidney
  done clear
  C)
   saliva                                   
  done clear
  D)
   pancreas
  done clear
  View Answer play_arrow

• question_answer109) First National park developed in India is
  A)
   Gir                                        
  done clear
  B)
   Kaziranga
  done clear
  C)
   Jim Corbett      
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer110) Polymerase chain reaction is most useful in
  A)
   DNA synthesis
  done clear
  B)
   DNA amplification
  done clear
  C)
   protein synthesis
  done clear
  D)
   amino acid synthesis
  done clear
  View Answer play_arrow

• question_answer111) 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_answer112) Entamoeba histolytica differs from Amoeba in absence of
  A)
   pseudopodia                   
  done clear
  B)
   contractile vacuole
  done clear
  C)
    nucleus                             
  done clear
  D)
    ectoplasm
  done clear
  View Answer play_arrow

• question_answer113) The biogenetic law of Haeckel is
  A)
   Omins vivum-e-vivum
  done clear
  B)
   Omnis cellula-e-cellula                      
  done clear
  C)
   ontogeny repeats phylogeny
  done clear
  D)
   phylogeny repeats ontogeny           
  done clear
  View Answer play_arrow

• question_answer114) In cockroach, larval and nymphal characters are maintained by
  A)
   ecdysone                          
  done clear
  B)
   salivary glands
  done clear
  C)
   parotid gland                   
  done clear
  D)
   juvenile hormone
  done clear
  View Answer play_arrow

• question_answer115) Which of the following is a transparent tissue ?
  A)
   Tendon                              
  done clear
  B)
   Fibrous cartilage
  done clear
  C)
   Hyaline cartilage             
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer116) Most widely used bioweapon is
  A)
   Bacillus subtilis
  done clear
  B)
   Pseudomonas putida
  done clear
  C)
   Bacillus anthracis
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer117) The vitamin which is essential for blood clotting is
  A)
   vitamin-A                          
  done clear
  B)
   vitamin-B
  done clear
  C)
   vitamin-C                           
  done clear
  D)
   vitamin-K
  done clear
  View Answer play_arrow

• question_answer118) The female genital pore of Pheretima posthuma located upon the segment?
  A)
   14th                                       
  done clear
  B)
   16th
  done clear
  C)
    18th                                      
  done clear
  D)
   15th
  done clear
  View Answer play_arrow

• question_answer119) Polyp phase is absent in
  A)
   Hydra                                  
  done clear
  B)
   Amelia
  done clear
  C)
   Physalia                              
  done clear
  D)
   Obelia
  done clear
  View Answer play_arrow

• question_answer120) Which is correctly matched ?
  A)
   Apiculture          ? Honeybee
  done clear
  B)
   Pisciculture        ? Silk moth
  done clear
  C)
   Sericulture         ? Fish
  done clear
  D)
   Aquaculture      ? Mosquito
  done clear
  View Answer play_arrow

• question_answer121) Changes that allow the conversion of larva into adult, is called
  A)
   metagenesis                    
  done clear
  B)
   alternation
  done clear
  C)
   metamorphosis              
  done clear
  D)
   metastasis
  done clear
  View Answer play_arrow

• question_answer122) Who is known as "father of Endocrinology"?
  A)
   RH Whittaker  
  done clear
  B)
   Pasteur
  done clear
  C)
   Einthoven                         
  done clear
  D)
   Thomas Addison
  done clear
  View Answer play_arrow

• question_answer123) Which of the following provides most evident proof of evolution ?
  A)
   Fossils                                 
  done clear
  B)
   Morphology
  done clear
  C)
   Embryo                              
  done clear
  D)
   Vestigial organs
  done clear
  View Answer play_arrow

• question_answer124) In Mollusca, eye is present over a stalk, called
  A)
   ostradium                         
  done clear
  B)
   operculum
  done clear
  C)
    ommatophores             
  done clear
  D)
   osphradium
  done clear
  View Answer play_arrow

• question_answer125) Among the following, colonial insects are
  A)
   locusts                                
  done clear
  B)
   mosquitoes
  done clear
  C)
    white ants                        
  done clear
  D)
   bug
  done clear
  View Answer play_arrow

• question_answer126) Haemoglobin is (1) oligomeric protein    (2) chromoprotein (3) monomeric protein (4) keratin
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer127) Cytoplasmic inheritance is due to (1) mitochondria (2) cilia (3) cytoplasmic particles (4) cell wall
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer128) Genetic code consists of (1) r RNA (2) adenine and guanine (3) lysosome (4) cytosine and uracil
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer129) Which of the following statements are correct ? (1) Mitochondria contain DNA (2) 70S ribosomes occur in prokaryote (3) Ribosomes are made up of phospholipids and oligosaccharide (4) Ribosomes are not found in Protista and Monera
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer130) Cells regulate their activity through (1) flow of energy            (2) flow of material (3) flow of information (4) flow of smoke
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer131) Synovial joint is (1) ball and socket joint                 (2) pivot joint (3) hinge joint                    (4) cartilaginous joint
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer132) Body co-ordination is maintained by (1) nervous system         (2) circulatory system (3) endocrine system     (4) excretory system
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer133) Broca area controls (1) breathing (2) movement of vocal cords (3) movement of teeth (4)  movement of tongue
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer134) Menstrual cycle is controlled by (1) estrogen and progesterone of ovary (2) FSH of pituitary (3) FSH and LH of pituitaiy (4) oxytocin hormone
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer135) B-lymphocytes are                     (1) formed in bone marrow (2) preprocessed in bone marrow (3) preprocessed in liver (4) formed in thymus
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer136) An important function of progesterone is (1) prepare uterus for pregnancy (2) implantation of embryo (3) maintenance of pregnancy (4) stimulate ADH
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer137) Adrenalin hormone increases (1) blood pressure           (2) heartbeat (3) blood glucose level   (4) arteriosclerosis
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer138) Mammalian palate is (1) primary structure (2) parallel to original roof of mouth cavity (3) tertiary structure (4) secondary structure
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer139) Excessive secretion of somatotropin leads to a disorder called (1) giantism                                        (2) acromegaly (3) cretinism                                       (4) Addison's disease
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer140) LH in human female is (1) fascilitates luteinization of granulosa cells of ovulated follicle (2) called ovulation hormone (3) helps in milk eyection (4) activates Leydig's cell to secrete androgen
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer141) Correctly matched pairs are (1) Clitoris-Erectile    body    in   female homologous to glans penis of male (2) Sexual inter course-Coirtus (3) Colostrum-Secreiion found in seminal fluid (4) Areola-Pigmented circular area around the nipple
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer142) The organs which have duel origin from embryonic layers (1) hypophysis                  (2) adrenal gland (3) sense organs               (4) pancreas
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer143) Amniocentesis is a method to (1) detect genetic disorder in an unborn baby (2) prenatal sex-determination (3) medical termination of pregnancy (4) fertilize the egg
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer144) Biomedical techniques commonly used are (1)\[\text{MRI}\]?Study of brain in health and encephalography disease (2) PET imaging?Measurement of cerebral blood volume and flow rate (3) Nuclear induction method?Discovered by Banding and Best (4) Tomography?Treatment by radiation
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer145) Identify the correctly matched pair (1) Uremia?Excessive amount of urea in blood (2) Hyperglycemia?Excess glucose in blood (3) Absence of factor \[\text{VIII}\]?haemophilia (4) \[\text{X}\]-linked disorder?glycosuria
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer146) Match list-\[\text{I}\] and list-\[\text{II}\] and select the correct answer using the codes

  List\[\text{-I}\](Phase of meiosis)	List\[\text{-II}\](Event that occur)
  Prophase\[\text{-I}\]	Crossing over occurs
  Metaphase\[\text{-II}\]	Sister chromatids migrate to opposite poles
  Anaphase\[\text{-I}\]	Homologous line up at equator in pairs

  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer147)  Match list\[\text{-I}\] and list\[\text{-II}\] and select the answer using the codes

  List\[\text{-I}\] (Scientist)	List\[\text{-II}\] (Discovery)
  Frederick Griffith	Phenomenon  of  transformation
  Gamow	A sequence of 3 nucleotide codes for a single amino acid
  Frederick Miescher	isolated DNA for the first time

  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer148) Linkage groups (1) have genes, which were linked together in a single chromosomes (2) show independent assortment (3) do not show independent assortment (4) in prokaryotes are more than one
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer149) Glomerular filterate is (1) formed continuously by the process of ultrafiltration occurring at Malpighian corpuscles, in which the blood cells and the colloidal macromolecues are not allowed to pass across the filtering surface (2) the lipid free fluid collected within the human of Bowman's capsule (3) the protein free fluid collects within the lumen of Bowman's capsule (4) formed by the process of selective reabsorption
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer150) Blood does not clot inside the vessels because (1)constant speedy flow of blood prevents accumulation of fibrin threads, if at all formed (2) absence of heparin, an anticoagulant having an tithrombin activity, in blood (3) smoothness of the endothelial lining prevents rupture by platelets and formation of thromboplastin from them (4) presence of monomolecular layer of negatively charged protein adsorbed to the inner surface of endothelium, which attracts the clotting factors
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer151) Coralloid root is the feature of
  A)
   Cycas                                   
  done clear
  B)
   Mosses
  done clear
  C)
   Pinus                                   
  done clear
  D)
   Selaginella
  done clear
  View Answer play_arrow

• question_answer152) Which of the following is an edible 'fungi'?
  A)
   Mucor                                 
  done clear
  B)
   Penidllium
  done clear
  C)
   Agaricus                             
  done clear
  D)
   Rhizopus
  done clear
  View Answer play_arrow

• question_answer153) Solarization is
  A)
   formation of chlorophyll
  done clear
  B)
   destruction of chlorophyll
  done clear
  C)
   utilization of sunlight
  done clear
  D)
   effects of solar light
  done clear
  View Answer play_arrow

• question_answer154) Bacteria are considered plant because they
  A)
   are green in colour
  done clear
  B)
   have rigid cell wall
  done clear
  C)
   have chlorophyll
  done clear
  D)
   have stomata
  done clear
  View Answer play_arrow

• question_answer155) 'Pneumatophores' are present/common in
  A)
   xerophytes      
  done clear
  B)
   hygrophytes
  done clear
  C)
   mesophytes                     
  done clear
  D)
   halophytes
  done clear
  View Answer play_arrow

• question_answer156) Trimerous flower, superior ovary and axile placentation is characteristics of
  A)
   Liliaceae                             
  done clear
  B)
   Cucurbitaceae .
  done clear
  C)
   Solanaceae      
  done clear
  D)
   Compositae
  done clear
  View Answer play_arrow

• question_answer157) Viruses possess
  A)
   DNA only
  done clear
  B)
   nucleic acid, DNA or RNA
  done clear
  C)
   protein only
  done clear
  D)
   nucleic acid and protein
  done clear
  View Answer play_arrow

• question_answer158) What differentiates leaf of dicots from monocots?
  A)
   Parallel venation
  done clear
  B)
   Differentiation of palisade and spongy parenchyma
  done clear
  C)
   Stomata only on upper side
  done clear
  D)
   Stomata both on upper and lower sides
  done clear
  View Answer play_arrow

• question_answer159) The presence of diversity at the junction of territories of two different habitats is known as
  A)
   bottle neck effect          
  done clear
  B)
   edge effect
  done clear
  C)
   junction effect                
  done clear
  D)
   Pasteur effect
  done clear
  View Answer play_arrow

• question_answer160) Which of the following is man made?
  A)
   Secale                                 
  done clear
  B)
   Triticale
  done clear
  C)
   Triticum                              
  done clear
  D)
   Cicer arietinum
  done clear
  View Answer play_arrow

• question_answer161) Botanical name of 'gram' is
  A)
   Cicer arietinum               
  done clear
  B)
   Phaseolus aurens
  done clear
  C)
   Lablab purpureus           
  done clear
  D)
   Dolichos
  done clear
  View Answer play_arrow

• question_answer162) Which of the following is a true nut ?
  A)
   Walnut                               
  done clear
  B)
   Cashewnut
  done clear
  C)
   Groundnut                       
  done clear
  D)
   Pistachio
  done clear
  View Answer play_arrow

• question_answer163) Effect of pollution is observed first on
  A)
   micro-organisms            
  done clear
  B)
   food crop
  done clear
  C)
   green vegetation           
  done clear
  D)
   herbivores
  done clear
  View Answer play_arrow

• question_answer164) 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_answer165) Initiation codon is
  A)
   \[\text{UUU}\]                               
  done clear
  B)
   \[\text{UGA}\]
  done clear
  C)
   \[\text{AUG}\]                               
  done clear
  D)
   \[\text{UAG}\]
  done clear
  View Answer play_arrow

• question_answer166) 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_answer167) In Funaria, stomata are present on the
  A)
   stem                                    
  done clear
  B)
   leaves
  done clear
  C)
   capsule                               
  done clear
  D)
   apophysis
  done clear
  View Answer play_arrow

• question_answer168) 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_answer169) Spindle fibre is made up of
  A)
   tubulin
  done clear
  B)
   humulin
  done clear
  C)
   intermediate filament
  done clear
  D)
   flagellin
  done clear
  View Answer play_arrow

• question_answer170) The yielding of rice is increased by
  A)
   Azolla                                  
  done clear
  B)
   Nostoc
  done clear
  C)
   Anabaena        
  done clear
  D)
   Clostridium
  done clear
  View Answer play_arrow

• question_answer171) Induction of flowering by low temperature? treatment is
  A)
   vernalization                    
  done clear
  B)
   cryobiology
  done clear
  C)
   photoperiodism             
  done clear
  D)
   pruning
  done clear
  View Answer play_arrow

• question_answer172) Decomposers are
  A)
   autotrophs      
  done clear
  B)
   autoheterotrophs
  done clear
  C)
   organotrophs                  
  done clear
  D)
   heterotrophs
  done clear
  View Answer play_arrow

• question_answer173) 'Club moss' belongs to
  A)
   Algae                                   
  done clear
  B)
   Pteridophyta
  done clear
  C)
   Fungi                                   
  done clear
  D)
   Bryophyta
  done clear
  View Answer play_arrow

• question_answer174) Cleavage polyembryony occurs in
  A)
   Pinus                                   
  done clear
  B)
   Mini Cycas
  done clear
  C)
   Cycas                                   
  done clear
  D)
   Ephedra
  done clear
  View Answer play_arrow

• question_answer175) 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_answer176) DNA can be (1) \[\text{A-DNA}\]                                      (2) \[\text{B-DNA}\] (3) \[\text{Z-DNA}\]                       (4) \[\text{Y-DNA}\]
  A)
   1, 2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer177) Mitosis is (1) reduction in chromosome number (2) karyokinesis (3) formation of four daughter nuclei (4) cytokinesis
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer178) Variations appear during meiosis due to (1) independent assortment (2) crossing over (3) linkage (4) glycolysis
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer179) Raticide poisons are obtained from (1) Dracaena                                      (2) Scilla (3) Colchicum                                     (4) Urginea
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer180) Edible oil is obtained from seeds of (1) Helianthus annuus (2) Helianthus tuberosus (3) Carthamus tinctorius               (4) Bellis perennis
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer181) Micropyle occurs in (1) seeds                                             (2) ovule (3) ovary                                              (4) stigma
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer182) A seeds, which do not require oxygen for germination? (1) Pea                                  (2) Rice (3) Onion                             (4) Typha
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer183) Primary root is (1) positively geotropic  (2) positive hydrotropic (3) negative geotropic (4) negative hydrotropic
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer184) Cholodny-Went theory is connected with (1) Photomorphogenesis             (2) Phototropism (3) Nastic movement     (4) Geotropism
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer185) Hairy styles help in the dispersal of fruits in (1) Clematis                                        (2) Aristolochia (3) Naravelia                                      (4) Mango
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer186) Which one is a colligative property? (1) Osmotic pressure      (2) Vapour pressure (3) Cohesion force                           (4) Surface tension
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer187) Idioblast is (1) plant cell different from others (2) animal cell different from others (3) plant cell having cell inclusions (4) animal cell having cell inclusions
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer188) The seeds, which have separate endosperm (1) maize                             (2) onion (2) rice                                  (4) bean
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer189) Which of the following statement is correct? (1) The causal organism for foolish seedling disease is the source of gibberellin (2) Abscisic acid is a growth promoter (3) The ratio of auxin to cytokinin control cell differentiation (4) Bolting of cabbage can be induced by treatment with \[\text{IAA}\]
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer190) With reference to plant tissue culture select the matching pair (1) Sterile tiploid?Banana and seedless fruit (2) Somaclonal      variations?Differences appearing (3) Embryoids?Non zygotic embryo produced from somatic cells (4) Pulses?Belong to Cruciferae
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer191) Consider the following statement (1) In plant cells, Cytokinesis start with the formation of the phragmoplast (2) Phragmoplast comprises intrazonal microtubules and Golgi vesicles (3) Primary cell wall is produced by microtubules (4) Phragmoplast is formed by nucleus
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer192) Consider the following statement " The genetic code said to be degenerate and universal, which means that, (1) amino acids may have more than one codon (2) all amino acids have more than one codon (3) codons are common for higher and lower organism (4) codons are not found in bacteria
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer193) Consider the following statements (1) the seed of pea is exalbuminous (2) the fruit of peach is drupe (3) the seed of tomato is albuminous (4) the fruit of coconut is berry
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer194) Consider the following statements (1) Cutin is a fatty acid polymer (2) Starch is a fatty acid polymer (3) Sucrose is monosaccharide (4) Maltose is polymer of fructose
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer195) Match list\[\text{-I}\] and list\[\text{-II}\] and select the correct answer using the code

  \[\text{List-I}\] (Enzyme)	\[\text{List-II}\] (Enzyme function)
  Ligase	Joins short segment of DNA together
  DNA Polymerase	Cuts DNA at specific DNA sequence
  Helicase	Breaks the hydrogen bonds between complementary pairs during DNA replication

  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer196) 46. Consider the following statements (1) Copper is present in cytochrome oxidase (2) Pantothenic acid is the precursor of Co-A (3) Thiamine pyrophosphate is the prosthetic group in decarboxylases (4) Zinc is present in RNA and DNA polymerases
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer197) Which of the following pairs are correctly matched? (1) Fertile spike                 ? Ophioglossum (2) Sporangiobphore      ? Equisetum (3) Synangium                   ? Psilotum (4) Apophysis                    ? Spirogyra
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer198) Consider the following statements (1)Marchantia polymorpha is dioecius (2) possesses antheridiophores and archegoniophores (3) lacks foot and seta in its sporophyte (4) is heterosporous
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer199) Which of the following are true archaebacteria' (1) Extreme halophiles (2) Extreme thermophyles (3) Methanogens (4) Presence of peptidoglycan cell wall
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow

• question_answer200) Consider the following statements associated with the germination of an angiospermous seed (1) as the seed gets hydrated and germinaas, enzymatic activity is increased (2) the respiration rate of the germinal- seeds increases along with the increased enzymatic activity (3) the increase in the respiratory  rate continues till senescence (4) rate of enzymatic activity decreases
  A)
   1,2 and 3 are correct.
  done clear
  B)
   1 and 2 are correct.
  done clear
  C)
   2 and 4 are correct.
  done clear
  D)
   1 and 3 are correct.
  done clear
  View Answer play_arrow