Solved papers for VMMC VMMC Medical Solved Paper-2015

done VMMC Medical Solved Paper-2015 Total Questions - 200

  • question_answer1) The dimensional formula for resistivity is

    A)
    \[[M{{L}^{3}}{{T}^{-3}}{{A}^{-2}}]\]        

    B)
    [\[{{M}^{-1}}{{L}^{2}}{{T}^{-3}}{{A}^{-2}}\]]

    C)
    [\[{{M}^{3}}{{L}^{-2}}{{T}^{-1}}\]]           

    D)
    [\[M{{L}^{3}}{{T}^{-4}}{{A}^{-3}}\]]

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  • question_answer2) The minimum intensity of light perceived by the normal human eye is \[{{10}^{-9}}\text{Wb}{{\text{m}}^{-2}}.\]If the wavelength of light is 600 nm, then determine the number of photons entering the pupil in Is to see the object [area of \[\alpha \text{-}\]section of the pupil is \[{{10}^{-5}}{{\text{m}}^{2}}\]]

    A)
    \[4.2\times {{10}^{4}}\]                

    B)
    \[4.2\times {{10}^{8}}\]

    C)
    \[3.0\times {{10}^{5}}\]                

    D)
    \[2.6\times {{10}^{6}}\]

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  • question_answer3) The minimum distance between the parallel planes of a crystal is 0.3 nm For the Bragg's scattering of X-ray of  \[0.3\overset{o}{\mathop{A}}\,\], would be given by

    A)
    \[\sin \theta =0.05\]rad

    B)
    \[\cos \theta =0.02\]rad

    C)
    \[\sin \theta =0.7\]rad  

    D)
    \[\tan \theta =0.7\]rad

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  • question_answer4) For the circuit shown in the figure, determine the charge of capacitor in steady state.

    A)
    \[4\mu C\]                                         

    B)
    \[6\mu C\]

    C)
    \[1\mu C\]                                         

    D)
     Zero

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  • question_answer5) A particle is moving along X-axis, whose acceleration is given by a = 3x -1, where x is the location of the particle. At t = 0, if the particle is at rest \[x=\frac{2}{3}\]the distance covered by the particle in 4s is

    A)
    zero                                      

    B)
    40 m

    C)
     37 m                    

    D)
     infinite

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  • question_answer6) There are two hollow spherical conductors A and B are given below. Points M and N can be connected by conductor wire. Initially (before the connection of points M and N) conductor B is neutral, while charge appeared on conductor A is q. After connecting the spheres, the potential of sphere B is

    A)
    \[\frac{q}{4\pi {{\varepsilon }_{0}}(r+R)}\]          

    B)
    \[\frac{q}{4\pi {{\varepsilon }_{0}}R}\]

    C)
    \[\frac{q}{4\pi {{\varepsilon }_{0}}(r+R)}\]          

    D)
     Zero

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  • question_answer7) A body of mass 2 kg moving with a velocity of 6 m/s strikes in elastically another body of same mass at rest. The amount of heat evolved is

    A)
     36 J                       

    B)
    18 J  

    C)
    9 J                                          

    D)
     3 J

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  • question_answer8) In pure rolling velocity of contact point is

    A)
    \[\omega r\]                                     

    B)
    \[>\omega r\]

    C)
    \[<\omega r\]                  

    D)
     zero

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  • question_answer9) Two solenoids A and B are coaxially place as shown in figure below. The radius of inner and outer solenoids are \[{{R}_{1}}\]and \[{{R}_{2}}\] respectively and the numbers of turns per unit length are \[{{N}_{1}}\] and \[{{N}_{2}}\] respectively. Consider a length \[l\]of each solenoids, calculate the mutual inductance between them.

    A)
    \[M={{\mu }_{0}}{{N}_{1}}{{N}_{2}}\pi R_{1}^{2}l\]

    B)
    \[M={{\mu }_{0}}{{N}_{1}}{{N}_{2}}\pi /{{R}_{1}}{{R}_{2}}\]

    C)
    \[M={{\mu }_{0}}{{N}_{1}}{{N}_{2}}\pi R_{1}^{2}R_{2}^{2}{{l}^{2}}\]

    D)
    \[M={{\mu }_{0}}{{N}_{1}}{{N}_{2}}\pi \frac{R_{1}^{2}}{R_{2}^{2}}l\]

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  • question_answer10) Four particles of mass 2 kg, 3 kg, 4 kg and 8 k) are situated at the corners of a square of side length 2m, the centre of mass may be given as

    A)
    \[\left( \frac{30}{18},\frac{28}{18} \right)\]                         

    B)
    \[\left( \frac{20\sqrt{2}}{18},\frac{24\sqrt{2}}{18} \right)\]

    C)
    \[\left( \frac{14}{17},\frac{24}{17} \right)\]                         

    D)
    \[\left( \frac{34}{18},\frac{34}{18} \right)\]         

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  • question_answer11) For the bob of a pendulum having length, the minimum horizontal speed at the bottom point of the circle, so that the particle completes the verticle circle, is

    A)
    \[\sqrt{g/}\]    

    B)
    \[\sqrt{4g/}\]

    C)
    \[\sqrt{5g/}\]   

    D)
    \[\sqrt{3g/}\]

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  • question_answer12) In order to balance a see-saw of total length 10.0 m, two kids weighing 20 kg and 40 kg are 'sitting at an end and at a distance x from the fulcrum at the centre, respectively. The value x (in cm) is

    A)
    125

    B)
    250    

    C)
    450    

    D)
    350

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  • question_answer13) At what distance from the centre of the moon, the intensity of gravitational field will be zero? Take masses of earth and moon as \[5.98\times {{10}^{2r}}kg\] and \[7.35\times {{10}^{22}}kg\]respectively and distance between moon and earth is  \[3.85\times {{10}^{8}}m.\]

    A)
    Zero                                      

    B)
    \[3.85\times {{10}^{7}}m\]

    C)
    \[8\times {{10}^{8}}m\]                

    D)
    \[3.46\times {{10}^{8}}m\]

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  • question_answer14) A particle is executing SHM .with amplitude A, along X-axis. Initially the particle is at \[x=\frac{A}{2}\], while moves along + X-direction. If the equation for the oscillation is given by \[x=A\sin \]\[(\omega t+\delta ),\]then \[\delta \]is

    A)
    \[\frac{5\pi }{6}\]                                            

    B)
    \[\frac{2\pi }{3}\]

    C)
    \[\frac{\pi }{6}\]                                              

    D)
    \[\frac{2\pi }{5}\]

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  • question_answer15) While study about fluid mechanics, the of    equations postulates stands for the fluids Which are

    A)
    non - viscous only

    B)
    incompressible only

    C)
    non-viscous and incompressible

    D)
    liquid only

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  • question_answer16) The liquid arms of an U-tube is shown in figure below. The shaded part represents the mercury (specific gravity 13.6) and other liquid is water. If the difference between height of mercury in either column is 2 cm, then height of water column is            

    A)
    27 cm                   

    B)
    23 cm

    C)
    25 cm                   

    D)
    29 cm

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  • question_answer17) A uniform rod weighing w, cross-sectional area are a and length l is hanging from the ceiling of a room. The Young's modules of material is V. The elongation of the rod is

    A)
    \[\frac{wl}{2aY}\]                            

    B)
    \[\frac{2wl}{aY}\]

    C)
    \[\frac{3wl}{2aY}\]                         

    D)
    \[\frac{2wl}{3aY}\]

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  • question_answer18) The average of power transmitted through a given point on a string supporting sine wave is 0.2 W, while the amplitude of wave is \[2\times {{10}^{3}}m.\] If the amplitude of wave is \[3\times {{10}^{-3}}m,\]then average power transmitted will be

    A)
    0.45 W                 

    B)
    1.32W

    C)
    0.66 W                 

    D)
    0.22W

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  • question_answer19) The speed of a transverse wave going on a wire having length 50 cm and mass 5.0 g is 80 \[m{{s}^{-1}}\]The tension developed in the wire will be (approx)

    A)
    60 N                      

    B)
    40 N

    C)
    50 N                                      

    D)
    30 N

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  • question_answer20) If the intensity level of a sound wave is increased by factor 20 the corresponding change in decibels level of the sound would be

    A)
    13 dB                    

    B)
    7 dB   

    C)
    19 dB                    

    D)
    27 dB

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  • question_answer21) A parallel beam of a monochromatic light of wavelength 900 nm passes through a long slit of width 0.4 mm. The angular divergence in which most of the light is diffracted, is

    A)
    \[4.5\times {{10}^{-3}}\]rad       

    B)
    \[9.0\times {{10}^{-3}}\]rad

    C)
    \[2.25\times {{10}^{-3}}\]rad     

    D)
    None of these

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  • question_answer22) A glass cube having edge 4 cm is kept on a printed page. If the refractive index of glass material is 1.5, then by what amount will the printed letters appear to be shifted, while viewed from the top?

    A)
    1.33 cm                

    B)
    2.33 cm

    C)
    0.6 cm                  

    D)
    1.66 cm

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  • question_answer23) Two light emitting sources of wavelength 500 nm are separated   by a distance 2.2 x \[{{10}^{2}}\] cm. A detector can be moved on the line \[{{S}_{1}}{{S}_{2}}\] is perpendicular to \[{{S}_{1}}{{S}_{2}}\] as shown in figure below. The minimum and maximum path difference at the detector as it is moved along the line\[{{S}_{1}}P\]are (respectively)                     

    A)
    zero,\[2.2\times {{10}^{-2}}cm\]              

    B)
    zero,\[1.1\times {{10}^{-2}}cm\]

    C)
    zero, zero                           

    D)
    \[2.2\times {{10}^{-2}}cm,2.2\times {{10}^{-2}}cm\]

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  • question_answer24) The figure shows a thin lens with point \[{{C}_{1}}\]and \[{{C}_{2}}\] as the centres of curvature. The focal length of lens will be (refractive index = 1.5)

    A)
    60 cm                   

    B)
    45 cm 

    C)
    120 cm                 

    D)
    75 cm

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  • question_answer25) A magnifier (lens) has the focal length 4.0 cm. If a small object is placed at a distance 3.6 cm from the magnifier the lens and angular magnifications will respectively be

    A)
    10 and 7              

    B)
    9 and 6

    C)
    3 and 4                 

    D)
     4 and 3

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  • question_answer26) The reading of a barometer on a steel scale is 75 cm, while the room temperature is 30°C. The linear and volumetric expensions for steel and mercury are \[1.2\times {{10}^{-5}}^{o}{{C}^{-1}}\]and \[1.8\times {{10}^{-4}}^{o}{{C}^{-1}}\]\[(\gamma ),\] respectively. The atmospheric pressure can be obtained as

    A)
    74.89 cm             

    B)
     67.62 cm

    C)
    88.67 cm             

    D)
    42.70 cm

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  • question_answer27) A crown glass prism is combined with flintone to produce a hybrid optical appratus in such a way that the mean by passes undeviated. If crown prism is of angle 5°, then angle of the flint glass prism will be (for crown and flint glasses the refractive indices are 1.517 and 1.620, respectively).

    A)
    5°                           

    B)
    4°    

    C)
    7°                           

    D)

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  • question_answer28) What will be the mass of water vapour per cubic metre of air at temperature 300 K and relative humidity 25%? The saturation vapour pressure at 300 K is 3.6 kPa and gas constant is \[R=8.3J{{K}^{-1}}\]

    A)
    13g                                        

    B)
    26g

    C)
    6.5 g                                      

    D)
    None of these

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  • question_answer29) A vessel containing 100 g water is thermally isolated at 0°C. The air above the water is pumped out, some of the water freezes and some evaporates at 0°C itself. Mass is left inside the vessel is. [latent heat of vaporisation of water at 0°C \[=2.1\times {{10}^{6}}J\,k{{g}^{-1}}\] latent heat of fusion of ice\[=3.36\times {{10}^{5}}J\,k{{g}^{-1}}\]]

    A)
    86g                                        

    B)
    103g

    C)
    77g                                        

    D)
     63g

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  • question_answer30) The mechanical equivalent of heat

    A)
    has the same dimension as heat

    B)
    has the same dimension as power

    C)
    has the same dimension as energy

    D)
    is dimensionless

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  • question_answer31) If\[{{I}_{1}}\]and \[{{I}_{2}}\]be the moment of inertia of two bodies of identical geometrical shape, the first is made of aluminium and second of iron, then

    A)
    \[{{l}_{1}}<{{l}_{2}}\]                     

    B)
    \[{{l}_{1}}={{l}_{2}}\]

    C)
    \[{{l}_{1}}>{{l}_{2}}\]

    D)
    relation between \[{{l}_{1}}\] and \[{{l}_{2}}\] depends on the centrashapes of the bodies

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  • question_answer32) A heat engine operates between a cold reservoir at temperature\[{{T}_{2}}\] = 250 K and hot reservoir at temperature \[{{T}_{1}}\] It takes 150 J of heat from the hot reservoir and delivers 100 J of heat to cold reservoir in a cycle. The minimum temperature of the reservoir would be

    A)
    378 K                    

    B)
    310 K  

    C)
    404 K                    

    D)
    296 K

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  • question_answer33) In a Young's double slit experiment width of one slit is doubled that for another. If the amplitude of light coming from a slit is proportional to the width of the slit, then what will be the ratio of maximum to minimum intensity in the interference pattern?

    A)
     9                                            

    B)
    7     

    C)
    8                                             

    D)
    11

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  • question_answer34) If the symbols V and E represents the gravitational potential and gravitational fieldat a point. It is possible to have

    A)
    V = 0 and E = 0                  

    B)
    \[V\ne 0\] and \[E\ne 0\]

    C)
    V= 0 and \[E\ne 0\]        

    D)
    \[V\ne 0\]and E =0

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  • question_answer35) A partly hanging unifom chain of lenght L is resting on a rough horizontal table. I is the maximum possible length that can hung in equilibrium. The coefficient of friction between the chain and table is

    A)
    \[\frac{l}{L-l}\]                  

    B)
    \[\frac{L}{l}\]

    C)
    \[\frac{l}{L}\]                                    

    D)
    \[\frac{lL}{L+l}\]

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  • question_answer36) Each of the resistance in the network shown in the figure is equal to R. the resistance between the terminals A and B is

    A)
    R                                            

    B)
    2R

    C)
    \[\frac{3R}{5}\]                                

    D)
    4R

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  • question_answer37) A spherical portion is removed from a solid sphere having a charge distribution uniformly in its volume. The electric field inside the emptied space is

    A)
    zero everywhere

    B)
    non-zero and uniform

    C)
    non-uniform

    D)
    zero, only at the centre

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  • question_answer38) A concave mirror of focal length and produces an image n times the size of the object. If the image is real one, then the distance of the object from the mirror is

    A)
    \[({{n}^{2}}+1)f\]                            

    B)
    \[\left( \frac{n+1}{n} \right)f\]

    C)
    \[\left( \frac{{{n}^{2}}}{{{n}^{2}}+1} \right)\times \frac{1}{f}\]   

    D)
     None of these

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  • question_answer39) In photoelectric effect, the photocurrent

    A)
    increases with increase in frequency of incident photon

    B)
    decreases with increase in frequency of incident photon

    C)
    does not depend on the frequency of photon but depends only on the intensity of incident light

    D)
    depends both on intensity and frequency of the incident photon

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  • question_answer40) Change of 8.0 mA in the emitter current brings a change of 7.9 mA in the collector current. The value of \[\beta \]will be

    A)
    89                          

    B)
    96     

    C)
    79                          

    D)
    99

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  • question_answer41) The electric potential energy due to electric repulsion between two nuclei of C-12 when they touch each other at the surface, is

    A)
    8.7 MeV              

    B)
    11.4 MeV

    C)
    10,2 MeV            

    D)
    9.3 MeV

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  • question_answer42) If 5% of the energy supplied to a bulb is radiated as visible light, how many quanta are emitted per second by a 100 W lamp? Suppose, visible light is of wavelength \[5.6\times {{10}^{-5}}cm.\]

    A)
    \[1.4\times {{10}^{19}}\]                             

    B)
    \[3.2\times {{10}^{17}}\]

    C)
    \[3.4\times {{10}^{19}}\]                             

    D)
    \[4.9\times {{10}^{-15}}\]

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  • question_answer43) In the nuclear reaction\[_{6}{{C}^{11}}{{\xrightarrow[{}]{{}}}_{5}}{{B}^{11}}+{{\beta }^{+}}+X,\]what dose X stand for?

    A)
    Electron              

    B)
    Proton

    C)
    Neutron             

    D)
    Neutrino

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  • question_answer44) A diatomic gas does 100 J of work when it is expanded isobaric ally. The heat given to the gas during this process is

    A)
    700 J                                     

    B)
    350 J

    C)
    175 J                                     

    D)
    1050 J

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  • question_answer45) There are n bullets fired in 1 s by a gun. The mass of each of the bullets is m. If the speed of each of the bullets is v the average force of the recoil is

    A)
    \[\frac{mv}{n}\]                                              

    B)
    \[\frac{mv}{ng}\]

    C)
    \[\frac{{{m}^{2}}{{v}^{2}}}{{{n}^{2}}}\]                 

    D)
    nmv

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  • question_answer46) The specific resistivity p of a circular wire of radius r, resistance R and length l is given by \[\rho \frac{\pi {{r}^{2}}R}{l}\]Given, \[r=(324\pm 0.02)cm\] \[R=(30\pm 1)\Omega \]and\[l=(4.80\pm 0.01)cm\] The percentage error in \[\rho \] is nearly

    A)
    7%                                         

    B)
    20%

    C)
    18%                                       

    D)
    None of these

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  • question_answer47) An electric kettle boils some water in 16 min. Due to some defect, it becomes necessary to remove 10% turns of heating coil of the kettle. Now, how much time will it take to boil the same amount of water?

    A)
    19.6 min                              

    B)
    12.7 min

    C)
    14.4 min                              

    D)
    15.0 min

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  • question_answer48) A particle having charge q and mass m starts moving from the origin under the action of an electric field \[E={{E}_{0}}L\]and \[B={{B}_{0}}I\]with a velocity\[v={{v}_{0}}\hat{j}.\]The speed of particle will becomes \[\frac{\sqrt{5}}{2}{{v}_{0}}\]after a time

    A)
    \[\frac{m{{v}_{0}}}{qE}\]                                             

    B)
    \[\frac{m{{v}_{0}}}{2qE}\]

    C)
    \[\frac{\sqrt{3}m{{v}_{0}}}{2qE}\]                           

    D)
    \[\frac{\sqrt{5}m{{v}_{0}}}{2qE}\]

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  • question_answer49) A galvanometer of resistance \[20\Omega \]shows a deflection of 10 divisions. When current of 1 mA is passed through it. If a shunt of \[4\Omega \] is connected and there are 50 divisions on the scale, the range of the galvanometer is

    A)
     35 mA                 

    B)
    40 mA

    C)
    30 mA                  

    D)
    25 mA

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  • question_answer50) Two short bar magnets with magnetic moments 400 Wb-A \[c{{m}^{2}}\]and 800 Wb-A\[c{{m}^{2}}\]are placed with their axis in the same straight line with similar poles facing each other and with their centres at 20 cm from each other. Then, the force of repulsion is

    A)
    0.2T                                       

    B)
    0.7T

    C)
    0.4T   

    D)
    0.9T

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  • question_answer51) The molar internal energy of a gas at temperature T is\[{{U}_{m}}\]  [T]. The molar internal energy at T = 0 is\[{{U}_{m}}\] (0). The correct expression that relates these two with appropriate contributions is

    A)
     \[{{U}_{m}}(T)={{U}_{m}}(0)+3RT\][Linear molecule, translation only]

    B)
    \[{{U}_{m}}(T)={{U}_{m}}(0)+\frac{5}{2}RT\][Linear molecule translation and rotation only]

    C)
    \[{{U}_{m}}(T)={{U}_{m}}(0)+\frac{3}{2}RT\][Non-linear  molecule, translation and rotation only]

    D)
    \[{{U}_{m}}(T)={{U}_{m}}(0)+RT\] [Non-linear molecule, translation only]

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  • question_answer52) Choose the correct order of reactivity for dehydration of the given alcohols using concentrated sulfuric acid

    A)
    2- methylpropan-2-ol > 2- butanol> 1- butanol

    B)
    2- methylpropan-2-ol > 1 - butanol> 2- butanol

    C)
    2- butanol> 2- methylpropan -2-ol > 1- butanol

    D)
    1 -butanol> 2-butanol > 2- methylpropan -2-ol

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  • question_answer53) The value of 'n' for the following molecule according to Huckel's rule is

    A)
    16                          

    B)
    4     

    C)
    3                                             

    D)
    14

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  • question_answer54) Addition of 1.0 g of a compound to 10 g of water .increases the boiling point by 0.3°C. The amount of compound needed to prepare a 500 mL of 0.1 solution is [Given: assume negligible dissociation or association of the compound, boiling point constant \[{{k}_{b}}\] of water\[=0.513kg\,mo{{l}^{-1}}\]]

    A)
    0.855 g                 

    B)
    17.1 g

    C)
    8.55 g                   

    D)
     85.5 g

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  • question_answer55) The major product obtained in the reaction given below is

    A)
                     

    B)

    C)
                                           

    D)

    View Answer play_arrow
  • question_answer56) The    d-electron    configuration    of\[C{{r}^{2+}},M{{n}^{2+}},F{{e}^{2+}}\] and\[C{{o}^{2+}}\] are \[{{d}^{4}},{{d}^{5}},{{d}^{6}}\]and\[{{d}^{7}}\] respectively. Which one of the following will exhibit minimum paramagnetic behaviour? \[\left[ At.no.Cr=24,Mn=25,Fe=26,Co=27 \right]\]

    A)
    \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{2+}}\]      

    B)
    \[{{[Co{{({{H}_{2}}O)}_{6}}]}^{2+}}\]

    C)
    \[{{[Cr{{({{H}_{2}}O)}_{6}}]}^{2+}}\]       

    D)
    \[{{[Mn{{({{H}_{2}}O)}_{6}}]}^{2+}}\]

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  • question_answer57) Equivalent conductance of\[BaC{{1}_{2,}}{{H}_{2}}S{{O}_{4}}\], and \[HCl\] are \[{{x}_{1,}}{{x}_{2}}\] and \[{{x}_{3}}\]\[Sc{{m}^{2}}\]\[equi{{v}^{-2}}\] at infinite dilution, if specific conductance of saturated \[BaS{{O}_{4}}\] solution is \[y\,S\,c{{m}^{-1}}\]then \[{{K}_{sp}}\] of\[BaS{{O}_{4}}\] is

    A)
    \[\frac{10_{y}^{3}}{2({{x}_{1}}+{{x}_{2}}-2{{x}_{3}})}\]  

    B)
    \[\frac{{{10}^{6}}{{y}^{2}}}{{{(x+{{x}_{2}}-2{{x}_{3}})}^{2}}}\]

    C)
    \[\frac{{{10}^{6}}{{y}^{2}}}{4{{({{x}_{1}}+{{x}_{2}}-2{{x}_{3}})}^{2}}}\]   

    D)
    \[\frac{{{x}_{1}}+{{x}_{2}}-2{{x}_{3}}}{{{10}^{6}}{{y}^{2}}}\]

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  • question_answer58) The IUPAC name of the following compound is

    A)
    2-cyano -3- chlorobutane

    B)
    2- chloro-3-cyanobutane

    C)
    2-methyl-3- chlorobutanenitrile

    D)
    3-chtoro-2-methylbutaneniti"ile

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  • question_answer59) Among the following, the correct statement concerning the optical activity is

    A)
    a molecule containing two or more chiral centres is always optically active

    B)
    a molecule containing just one chiral centre is always optically active

    C)
    a molecule possessing alternating axis of symmetry is optically active

    D)
    an optically active molecule should have at least one chiral centre

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  • question_answer60) Determine the de-Broglie wavelength (A) associated with He-atom at 500 K.

    A)
    0.565                    

    B)
    0.435

    C)
    0.223                    

    D)
    0.195

    View Answer play_arrow
  • question_answer61) Identify the incorrect statement among the following.

    A)
    There is a decrease in the radii of the atoms or ions as one proceeds from La or Lu

    B)
    Lanthanide contraction is the accumulation of successive shrinkages                   

    C)
    As a result of lanthanide contraction, the properties of 3d series of the transition element have no similarities with 5d series of elements

    D)
    Shielding power of 4f electrons is quite weak

    View Answer play_arrow
  • question_answer62) An electric current of 0.965 ampere is passed for 2000 s through a solution containing \[{{[Cu{{(C{{H}_{3}}CN)}_{4}}]}^{+}}\] and metallic copper is deposits d at the cathode. The amount of Cu deposited is

    A)
    0.005 mol                            

    B)
    0.01 mol

    C)
    0.02 mol                             

    D)
    0.04 mol

    View Answer play_arrow
  • question_answer63) On controlled hydrolysis and condensation, \[{{R}_{3}}SiCl\] yields

    A)
    \[{{R}_{3}}Si-O-Si{{R}_{3}}\]       

    B)
    \[{{(-{{R}_{3}}Si-O-Si{{R}_{3}}-)}_{n}}\]

    C)
    \[{{R}_{3}}SiOH\]                            

    D)
    \[-\underset{\underset{-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{Si}}}}\,-\text{O}}{\overset{|}{\mathop{\text{O}}}}\,}{\overset{\begin{smallmatrix}  \text{R} \\  | \end{smallmatrix}}{\mathop{\text{Si}}}}\,-\text{O}-\underset{\underset{-\underset{|}{\overset{|}{\mathop{\text{Si}}}}\,-}{\overset{|}{\mathop{\text{O}}}}\,}{\overset{\begin{smallmatrix}  \text{R} \\  | \end{smallmatrix}}{\mathop{\text{Si}}}}\,-\]

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  • question_answer64) The soldiers of Napolean army while at Alps during freezing winter suffered a serious problem as regards to the tin buttons of their uniforms. White metallic tin buttons got converted   to   grey   powder.   This transformation is related to

    A)
    a change in the crystalline structure of tin

    B)
    an interaction with nitrogen of the air at very low temperature

    C)
    a change in the partial pressure of oxygen in the air

    D)
    an interaction with water vapour contained in the humid air

    View Answer play_arrow
  • question_answer65) In a fee arrangement or P and Q, where f atoms are at the corners of the unit cell, Q atoms at the face centres and two atoms are missing from two corners in each unit cell, then the formula of the compound is

    A)
                                                                                           \[{{P}_{2}}{{Q}_{3}}\]                                

    B)
                                                                                                  \[{{P}_{4}}Q\]

    C)
                                                                                           \[{{P}_{4}}{{Q}_{5}}\]                                

    D)
                                                                                                  \[P{{Q}_{4}}\]

    View Answer play_arrow
  • question_answer66) A system undergoes two cyclic processes I and II. Process I is reversible and process II is irreversible. The correct statement relating to the two processes is

    A)
                                                                                                     \[\Delta S\] (for process I) = 0, while                                                                                                  \[\Delta S\] (for process II)                                                                                                    \[\ne 0\]

    B)
                                                                                              \[{{q}_{cycle}}=0\]  for process I and                                                                                        \[{{q}_{cycle}}\ne 0\] for process II

    C)
    more heat can be converted to work in process I than in process II

    D)
    more work can be converted to heat in process I than in process II

    View Answer play_arrow
  • question_answer67) In the extraction of metals from their ores, which one of the following reduction methods can bring about a non-spontaneous reduction?

    A)
    Electrolytic reduction

    B)
    Reduction by carbon

    C)
    Reduction by another metal

    D)
    Reduction by hydrogen

    View Answer play_arrow
  • question_answer68) The molar conductivity of 0.009 M aqueous solution of a weak acid (HA) is \[\text{0}\text{.005}\,\text{S}\,{{\text{m}}^{\text{2}}}\,\text{mo}{{\text{l}}^{\text{-1}}}\]and the limiting molar conductivity of HA is \[\text{0}\text{.005}\,\text{S}\,{{\text{m}}^{\text{2}}}\,\text{mo}{{\text{l}}^{\text{-1}}}\]at 298 K. Assuming activity coefficients to be unity, the acid dissociation constant \[({{K}_{a}})\] of HA at this temperature is

    A)
    \[1\times {{10}^{-4}}\]                  

    B)
    \[0.1\]

    C)
    \[9\times {{10}^{-4}}\]                  

    D)
    \[1.1\times {{10}^{-5}}\]

    View Answer play_arrow
  • question_answer69) The reactivity order of the indicated. functional groups towards the attacked of nucleophile, is

    A)
    P > Q > R             

    B)
     0 > P > R

    C)
     Q > R > p                            

    D)
    R > P > Q

    View Answer play_arrow
  • question_answer70) The work done during the free expension of  1 mole of an ideal gas at 27°C is twice of its original volume is Given \[RT=2494\,\text{J mo}{{\text{l}}^{\text{-1}}}\text{(ln}2=0.7,\log 2=0.3)\]

    A)
    \[1746\,\text{J mo}{{\text{l}}^{\text{-1}}}\]                       

    B)
    \[-1746\,\text{J mo}{{\text{l}}^{\text{-1}}}\]

    C)
    zero                                      

    D)
    \[748.2\,\text{J mo}{{\text{l}}^{\text{-1}}}\]

    View Answer play_arrow
  • question_answer71) Which of the following compounds is optically active?

    A)
                   

    B)

    C)
                                                                  

    D)

    View Answer play_arrow
  • question_answer72) The     emf     of     the     cell,\[Pt|C{{e}^{4+}}(90%),C{{e}^{3+}}(10%)|\]normal calomel electrode is 1.464 V at 25°C. Find the value of equilibrium constant of the reaction: \[2C{{e}^{3+}}+2{{H}^{+}}\xrightarrow[{}]{{}}2C{{e}^{4+}}+{{H}_{2}}\] The electrode potential of the normal calomel electrode is 0.28 V.

    A)
    \[2.38\times {{10}^{38}}\]                           

    B)
    \[1.08\times {{10}^{42}}\]

    C)
    \[1.67\times {{10}^{39}}\]                           

    D)
    \[3.24\times {{10}^{44}}\]

    View Answer play_arrow
  • question_answer73) The correct order of dipole moments \[(\mu )\]of the following compounds, is 1.\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CHO\] 2.\[C{{H}_{3}}CH=CH-CHO\] 3.\[C{{H}_{3}}C{{H}_{2}}CH=C{{H}_{2}}\]

    A)
    \[{{\mu }_{1}}>{{\mu }_{2}}>{{\mu }_{3}}\]        

    B)
    \[{{\mu }_{2}}>{{\mu }_{3}}>{{\mu }_{1}}\]

    C)
    \[{{\mu }_{3}}>{{\mu }_{1}}>{{\mu }_{2}}\]        

    D)
    \[{{\mu }_{2}}>{{\mu }_{1}}>{{\mu }_{3}}\]

    View Answer play_arrow
  • question_answer74) The major product obtained in the following reaction is

    A)
                            

    B)

    C)
                                         

    D)
                   

    View Answer play_arrow
  • question_answer75) The complementary stand of DNA for the following single standed DNA sequence, 5'?A?T?C?A?T?G?-C?3' is

    A)
    5'?A?T?C?A?T?G?C?3'

    B)
    5?T?A?G?T?A?C?G?3'

    C)
     5?G?C?A?T?-G?A?-T?3'

    D)
     5?C?G?T?A?C?T?A?3'

    View Answer play_arrow
  • question_answer76) Which chemical test will distinguish the compounds shown below?

    A)
    Beilstein's flame test

    B)
    Ethanoic silver nitrate

    C)
    Sodium fusion test

    D)
    Refiling's test

    View Answer play_arrow
  • question_answer77) The maximum number of stereo isomers possible for 4-phenyl but-3-en-2-ol is

    A)
    1                                             

    B)
    2

    C)
    3                                             

    D)
    4

    View Answer play_arrow
  • question_answer78) In which of following C?H bond has highest 's' character?

    A)
    Acetylene          

    B)
    Methane

    C)
    Ethene                                

    D)
    Propane

    View Answer play_arrow
  • question_answer79) The ionic radii of \[C{{a}^{2+}}\] and \[{{F}^{-}}\]are 100 pm and 133 pm respectively. The coordination number of \[C{{a}^{2+}}\] in the ionic solid will be

    A)
    8                                             

    B)
    6

    C)
    4                                             

    D)
    2

    View Answer play_arrow
  • question_answer80) The correct statement describing the relationship between

    A)
    X and Y are resonance structures and Z is a tautomer

    B)
    X and Y are tautomers and Z is a resonance structures

    C)
    X, Y and Z are all resonance structure

    D)
    X, Y and Z are all tautomers

    View Answer play_arrow
  • question_answer81) The correct order of acidity among

    A)
    l < ll < III < IV       

    B)
     IV < I < III < II

    C)
    III < I < III < IV      

    D)
    ll < IV < I < III

    View Answer play_arrow
  • question_answer82) Among lithium, nitrogen, carbon, oxygen, which element has the highest first ionisation potential?

    A)
    Lithium                

    B)
    Nitrogen

    C)
    Carbon                

    D)
    Oxygen

    View Answer play_arrow
  • question_answer83)  The given compounds I and II are

    A)
    indentical                           

    B)
    diastereomeric

    C)
    enantiomeric

    D)
    constitutionally isomeric

    View Answer play_arrow
  • question_answer84) If uncertainty in position and momentum are equal then uncertainty in velocity is

    A)
    \[\sqrt{\frac{h}{2\pi }}\]                              

    B)
    \[\frac{1}{m}\sqrt{\frac{h}{\pi }}\]

    C)
    \[\sqrt{\frac{h}{\pi }}\]                                 

    D)
    \[\frac{1}{2m}\sqrt{\frac{h}{\pi }}\]

    View Answer play_arrow
  • question_answer85) Which of the following are aromatic?

    A)
    P and Q                               

    B)
    Q and R

    C)
    R and S                

    D)
    Q and S

    View Answer play_arrow
  • question_answer86) Which one of the following is electron-deficient molecule according to the octet rule?

    A)
    \[C{{H}_{4}}\]                   

    B)
    \[{{H}_{3}}N:B{{H}_{3}}\]

    C)
    \[Al{{H}_{3}}\]                  

    D)
    \[Ge{{H}_{4}}\]

    View Answer play_arrow
  • question_answer87) An aqueous solution containing 1 g of urea boils at 100.25°C. The aqueous solution containing 3 g of glucose in the same volume will boil at

    A)
    100.75°C              

    B)
    100.5°C

    C)
    100°C                    

    D)
    100.25°C

    View Answer play_arrow
  • question_answer88) The most durable metal plating on iron to protect against corrosion is

    A)
    nickel plating                     

    B)
    tin plating

    C)
    copper plating                  

    D)
    zinc plating

    View Answer play_arrow
  • question_answer89) For a first order reaction involving decomposition   of\[{{N}_{2}}{{O}_{5}},\]following information is available \[2{{N}_{2}}{{O}_{5}}(g)\xrightarrow[{}]{{}}4N{{O}_{2}}(g)+{{O}_{2}}(g),\] Rate\[=k[{{N}_{2}}{{O}_{5}}]\] \[{{N}_{2}}{{O}_{5}}(g)\xrightarrow[{}]{{}}2N{{O}_{2}}(g)+\frac{1}{2}{{O}_{2}}(g),\] Rate\[=k[{{N}_{2}}{{O}_{5}}]\] Which of following expression is true?

    A)
    \[k=k'\]               

    B)
    \[k'=2k\]

    C)
    \[k'=\frac{1}{2}k\]                          

    D)
    \[k>k'\]

    View Answer play_arrow
  • question_answer90) In the cyanide extraction process of silver from argentite ore, the oxidising and reducing agents used are

    A)
    \[{{O}_{2}}\] and CO respectively

    B)
    \[{{O}_{2}}\] and Zn dust respectively

    C)
    \[HN{{O}_{3}}\]and Zn dust respectively

    D)
    \[HN{{O}_{3}}\] and CO respectively

    View Answer play_arrow
  • question_answer91) For adsorption of a gas on a solid, the plot of log x/m vs log p is linear with a slope equal to (n being a whole number)

    A)
     R                           

    B)
    log R  

    C)
    n                            

    D)
    \[\frac{1}{n}\]

    View Answer play_arrow
  • question_answer92) In the thermite process, iron oxide is reduced to molten iron by aluminium powder because

    A)
    the melting point of iron is low

    B)
    the reaction is highly endothermic

    C)
    large amount of heat is liberated in the formation of \[A{{l}_{2}}{{O}_{3}}\]

    D)
    aluminium is an amphoteric element

    View Answer play_arrow
  • question_answer93) Volume of a colloidal particle, \[{{V}_{c}}\]as compared to the volume of a solute particle in a true solution, \[{{V}_{s}}\] could be

    A)
    \[\frac{{{V}_{c}}}{{{V}_{s}}}\approx 1\]                

    B)
    \[\frac{{{V}_{c}}}{{{V}_{s}}}\approx 1\]

    C)
    \[\frac{{{V}_{c}}}{{{V}_{s}}}\approx {{10}^{-13}}\]                           

    D)
    \[\frac{{{V}_{c}}}{{{V}_{s}}}\approx {{10}^{3}}\]

    View Answer play_arrow
  • question_answer94) The shape of\[CH_{3}^{-}\] ion is

    A)
    trigonal planar                  

    B)
    tetradral

    C)
    trigonal pyramidal           

    D)
    linear

    View Answer play_arrow
  • question_answer95) The pH of \[1\times {{10}^{-8}}\]M HCl solution is close to

    A)
    8.0         

    B)
    7.1    

    C)
    6.9                         

    D)
    6.0

    View Answer play_arrow
  • question_answer96) Oxidation    number    of    P    in \[{{H}_{4}}{{P}_{2}}{{O}_{5}},{{H}_{4}}{{P}_{2}}{{O}_{6}},{{H}_{4}}{{P}_{2}}{{O}_{7}}\]respectively are

    A)
    + 3, + 5, + 4                        

    B)
    + 4, + 3, + 5

    C)
    + 3, + 4, + 5                        

    D)
     + 5, + 3, + 4

    View Answer play_arrow
  • question_answer97) One mole of an ideal gas with \[{{C}_{v}}=\frac{3}{2}R\]is heated at a constant presure of 1 atm from 25°C to 100°C. The \[\Delta E\] and \[\Delta H\]respectively are

    A)
    300,225                

    B)
    225,375

    C)
    375, 225               

    D)
    225, 300

    View Answer play_arrow
  • question_answer98) In which of the following molecules are all the bonds not equal?

    A)
    \[Al{{F}_{3}}\]                  

    B)
    \[N{{F}_{3}}\]

    C)
    \[Cl{{F}_{3}}\]                                   

    D)
    \[B{{F}_{3}}\]

    View Answer play_arrow
  • question_answer99) 0.3 g of an oxalate salt was dissolved in 100 ml solution. The solution requires 90 mL of \[\frac{N}{2}KMn{{O}_{4}}\]for complete oxidation. The % of oxalate ion in salt is

    A)
    33%                       

    B)
     66%   

    C)
    70%                       

    D)
    40%

    View Answer play_arrow
  • question_answer100) The counting rate observed from a radioactive source at t = 0 second was 1600 counts/s and ( = 8 s it was 100 counts/s. The counting rate observed as count per second at t = 6 s will be

    A)
    400                        

    B)
    300   

    C)
    200                        

    D)
    150

    View Answer play_arrow
  • question_answer101) As compared to blood, lymph contains

    A)
    more protein, same number of leucocytes many lymphocytes and few erythrocytes

    B)
    less   protein,   more   leucocytes   chiefly granulocytes and few erythrocytes

    C)
    less protein, large number of leucocytes mainly lymphocytes and a few granulocytes and no erythrocytes

    D)
    less protein, same number of leucocytes mainly lymphocytes and a few erythrocytes 

    View Answer play_arrow
  • question_answer102) Stratified and non-keratinised squamous epithelium occurs in

    A)
    epidermis of skin            

    B)
    vagina and cervix

    C)
    buccal cavity                      

    D)
    Both (b) and (c)

    View Answer play_arrow
  • question_answer103) Homeostasis is used to describe

    A)
    tendency of the biological system to change with the slightest change in the environment

    B)
    disturbance of the self-regulatory system

    C)
    tendency of the biological- system to resist change

    D)
    None of the above

    View Answer play_arrow
  • question_answer104) Auer Bach?s plexus is present between

    A)
    longitudinal and oblique muscles in stomach

    B)
    oblique and sub mucosal muscles

    C)
    circular and longitudinal muscles of stomach

    D)
    sub mucosa and mucosa

    View Answer play_arrow
  • question_answer105) Glisson's capsule, the thin sheet of connective tissue covers the

    A)
    liver                      

    B)
    stomach

    C)
    pancreas             

    D)
    kidney

    View Answer play_arrow
  • question_answer106) Mammalian    liver    is    histologically characterised by the presence of

    A)
    glandular cells + leucocytes

    B)
    glandular cells + bite canaliculi

    C)
    Kupffer's cells + Glisson's capsule

    D)
    bile canaliculi, +arterioles +venules

    View Answer play_arrow
  • question_answer107) Hair cells are present in skin they are

    A)
    epidermal in origin and made of dead cells

    B)
    epidermal in origin and made of living cells

    C)
    dermal in origin and made of living cells

    D)
    dermal in origin and made of dead cells

    View Answer play_arrow
  • question_answer108) Stratum luciderm has a shiny substance called

    A)
    luciferin              

    B)
    eleidin

    C)
    cardiolipin                          

    D)
    cerumen

    View Answer play_arrow
  • question_answer109) Creator omentum is

    A)
    prominence in humerus

    B)
    prominence in femur

    C)
    fold of peritoneum suspending stomach and colon

    D)
    fold of peritoneum suspending ovaries

    View Answer play_arrow
  • question_answer110) Bile salts are

    A)
    sodium bicarbonate and sodium taurocholate

    B)
    sodium glycocholate and sodium bicarbonate

    C)
    inorganic salts and sodium glycocholate

    D)
    sodium glycocholate and sodium taurocholate

    View Answer play_arrow
  • question_answer111) Tenia coli are constituents of

    A)
    ileum                    

    B)
    caecum

    C)
    rectum                

    D)
    colon

    View Answer play_arrow
  • question_answer112) Dental formula of a child is

    A)
    \[\frac{2102}{2102}\]                     

    B)
    \[\frac{2120}{2120}\]

    C)
    \[\frac{2123}{2123}\]                     

    D)
    \[\frac{2111}{2111}\]

    View Answer play_arrow
  • question_answer113) Enzyme maltase of human gut acts on food at

    A)
    pH less than 7, converting maltose of fructose

    B)
    pH more than 7, converting maltose to glucose

    C)
    pH less than 7, changes starch to maltose

    D)
    pH more than 7, changes starch to maltose

    View Answer play_arrow
  • question_answer114) Mental retardation in children suffering from galactosemia can be avoided by

    A)
    giving them more milk

    B)
    giving them milk free diet

    C)
    giving them milk fortified with vitamins

    D)
    giving them more protein in diet

    View Answer play_arrow
  • question_answer115) Which of the following hormones cause inhibition of gastric secretions and promotion of pancreatic, bile secretions?

    A)
    Gastrin, secretin, enterokinin and cholecystokinin

    B)
    Enterogastrone, pancreozymin and cholecystokinin

    C)
    Gastrin, enterogastrone, pancreozymin and cholecystokinin

    D)
    Secretin, enterogastrone, gastrin and enterokinin

    View Answer play_arrow
  • question_answer116) Balanced diet should have

    A)
    protein 1/5, fat 3/5 and carbohydrate 1/5

    B)
    protein 3/5, fat 1/5 and carbohydrate 1/5

    C)
    protein 1/2, fat 1/4 and carbohydrate 1/4

    D)
    protein 1/5, fat 1/5 and carbohydrate 3/5

    View Answer play_arrow
  • question_answer117) Diastema is toothless area between

    A)
    right and left incisors

    B)
    incisors and premolars

    C)
    premolars and molars

    D)
    behind molars

    View Answer play_arrow
  • question_answer118) Lathyrism due to the consumption of kheseri dal is characterised by

    A)
    skeletal deformation and thinning of collagen fibres

    B)
    skeletal abnormalities, diabetes mellitus and reproductive failure

    C)
    retarded growth, precious pubery and renal dysfunction

    D)
    cardiovascular abnormalities, mental retardation and delayed puberty

    View Answer play_arrow
  • question_answer119) Asphyxia occurs due to the

    A)
    rise in level of\[C{{O}_{2}}\]   

    B)
    fall in level of \[C{{O}_{2}}\]

    C)
    rise in level of     

    D)
    fall in level of\[{{O}_{2}}\]

    View Answer play_arrow
  • question_answer120) Partial pressure of oxygen in the inspired and the expired air is respectively

    A)
    158 and 116mmHg

    B)
    158 and 40 mm Hg

    C)
    100 and 95 mm Hg

    D)
    40 and 95 mm Hg

    View Answer play_arrow
  • question_answer121) Common feature of human and insect tracheae is

    A)
    non-collapsible wall 

    B)
    supporting rings

    C)
    ectodermal origin   

    D)
    endodermal origin

    View Answer play_arrow
  • question_answer122) Compound soluble in water which does not impede oxygen transport is

    A)
    \[S{{O}_{2}}\]                                   

    B)
    \[S{{O}_{3}}\]

    C)
    NO                                        

    D)
    CO

    View Answer play_arrow
  • question_answer123) Exchange of gases in lung alveoli occurs through

    A)
    active transport               

    B)
    osmosis

    C)
    simple diffusion               

    D)
    passive transport

    View Answer play_arrow
  • question_answer124) Stretch   receptors   of   bronchi   send information to inspiratory centre through

    A)
    vagus

    B)
    glossopharyngeal

    C)
    sympathetic nerve

    D)
    parasympathetic nerve

    View Answer play_arrow
  • question_answer125) 100 mL of blood can carry \[C{{O}_{2}}\]equal to

    A)
    20 mL                   

    B)
    0.3 mL

    C)
    3.7 mL                  

    D)
    6.3 mL

    View Answer play_arrow
  • question_answer126) Leukopenia is the condition in which

    A)
    the total number of leucocytes decreases below 5000/cu mm

    B)
    the total number of leucocytes increases above 6000/cu mm

    C)
    bone marrow is destroyed

    D)
    formation of leucocytes stops

    View Answer play_arrow
  • question_answer127) ESR (Erythrocyte Sedimentation Rate) is meant for knowing

    A)
    degree of a disease

    B)
    erythrocyte count

    C)
    study of plasma

    D)
    calculation of haemoglobin

    View Answer play_arrow
  • question_answer128) Husband and wife should know their Rh factor because the situation can be serious as in one of the following cases

    A)
    \[\text{R}{{\text{h}}^{\text{+}}}\] husband and \[\text{R}{{\text{h}}^{+}}\] wife

    B)
    \[\text{R}{{\text{h}}^{\text{-}}}\] husband and \[\text{R}{{\text{h}}^{+}}\] wife

    C)
    \[\text{R}{{\text{h}}^{-}}\]husband and \[\text{R}{{\text{h}}^{-}}\]wife

    D)
    \[\text{R}{{\text{h}}^{+}}\] husband and\[\text{R}{{\text{h}}^{-}}\] wife

    View Answer play_arrow
  • question_answer129) Haematocrit is

    A)
    haemoglobin/100 mL of blood

    B)
    number of RBCs per mm3

    C)
    oxygen carrying capacity of blood

    D)
    cell volume of blood when packed

    View Answer play_arrow
  • question_answer130) The ratio of RBCs to WBCs in human is

    A)
     6 : 1                      

    B)
    60 : 1   

    C)
    600 : 1                  

    D)
    6000 : 1

    View Answer play_arrow
  • question_answer131) A, B, and C are the three forms of DNA, in which

    A)
    A and B are right-handed and C is left-handed

    B)
    A is right-handed and B and C are left-handed

    C)
    All three are right-handed, but the number of bases per turn in the three are different

    D)
    All three are left-handed, but the number of base pairs per turn in the three are different

    View Answer play_arrow
  • question_answer132) Fussion of ever multiplying myeloma cells with an active B cell is done in presence of PEG to form

    A)
    statins                  

    B)
    cyclosporins

    C)
    monoclonal antibodies

    D)
    antibody for myeloma

    View Answer play_arrow
  • question_answer133) Myasthenia gravis is a disease occurring due to the auto antigens produced against acetyl choline  receptors.   This   phenomenon represents

    A)
    SCID                      

    B)
    autoimmunity

    C)
    hypersensitivity               

    D)
    None of the above

    View Answer play_arrow
  • question_answer134) Changing moods, errant behaviour, thoughts and perceptions as seen in psychosis, powerful imagination, dream-like state with disorientation and   loss of contact with reality, all of these are the effects of

    A)
    opiates                

    B)
    stimulants

    C)
    hallucinogens                   

    D)
    sedatives

    View Answer play_arrow
  • question_answer135) Rinderpest is a disease occurring in

    A)
    poultry                

    B)
    catties       

    C)
    humans               

    D)
    pigs

    View Answer play_arrow
  • question_answer136) Which one of the following is a primary character of phylum-Chordata?

    A)
    Solid ventral nerve cord

    B)
    Dorsal tubular nerve cord

    C)
    Paired nerve cord

    D)
    Ganglionated nerve cord

    View Answer play_arrow
  • question_answer137) An individual is suffering from urogenital tract infection during micturtion, a burning feeling and yellow discharge occurs. It is accompanied by fever, headache and feeling uneasy. He is suffering from which disease?

    A)
    Syphillis

    B)
    Trichomoniasis

    C)
    Chlamydia infection

    D)
    Gonorrhoea

    View Answer play_arrow
  • question_answer138) If a sickle-cell anaemia carrier marries another carrier. What is the probability of having a normal child?

    A)
    1             

    B)
    2

    C)
    0

    D)
    All children will be normal

    View Answer play_arrow
  • question_answer139) At which stage of AIDS, the symptoms starts to manifest in humans, indicating onset of HIV infection?

    A)
    During production of viral DNA by reverse transcriptase

    B)
    During HIV replication in helper T-cells, thus lowering the immune capacity of patient

    C)
    After 2 weeks of sexual contact with an infected patient

    D)
    When retro viral DNA starts using host machinery for its propagation

    View Answer play_arrow
  • question_answer140) A connecting link demonstrates characteristics of more than one groups. What will be the connecting  link between reptiles  and mammals from those given below?

    A)
    Chimaera            

    B)
    Balanoglossus

    C)
    Neopilina            

    D)
    Echidna

    View Answer play_arrow
  • question_answer141) Pot-belly and pigeon-chest with protruding tongue are the symptoms of

    A)
    cretinism           

    B)
    Gave's disease

    C)
    cushing's syndrome

    D)
    simmond's disease

    View Answer play_arrow
  • question_answer142) If the proximal centriole of the mature sperm is destroyed, which of the following is likely to be affected

    A)
    motility                

    B)
    fertilisation

    C)
    cleavage            

    D)
    None of these

    View Answer play_arrow
  • question_answer143) The Advanced Glycation Endproducts (AGEs) in aging are related to

    A)
    weakening of immune system

    B)
    cross-linking of proteins

    C)
    free oxygen redicals

    D)
    endocrine hyposecretion

    View Answer play_arrow
  • question_answer144) Christmas disease is also called as

    A)
    haemophilia-A

    B)
    haemophilia-B

    C)
    juvenile muscular dystrophy

    D)
    colour blindness

    View Answer play_arrow
  • question_answer145) In human, which of the following is not vestigial in structure

    A)
    panniculus carnosis        

    B)
    segmental muscles

    C)
    plica circularis                    

    D)
    auricular muscles

    View Answer play_arrow
  • question_answer146) 'Competitive Exclusion Principle, of Hardin is also known as

    A)
    Cause's law                        

    B)
    Alien's law

    C)
    Bergeman's rule              

    D)
    Golger's rule

    View Answer play_arrow
  • question_answer147) Which of the following ancestors of man was the last to disappear?

    A)
    Homo erectus

    B)
    Homo sapiens fossilis

    C)
    Homo habilis

    D)
    Homo neanderthalensis

    View Answer play_arrow
  • question_answer148) The protein content is maximum in

    A)
    human's milk                    

    B)
    buffalo's milk

    C)
    colopturm                          

    D)
    cow's milk

    View Answer play_arrow
  • question_answer149) Anti malarial drugs and sulphonamides can produce

    A)
    thalassemia

    B)
    G-6-PD deficiency anaemia

    C)
    sickle-cell anaemia

    D)
    All of the above

    View Answer play_arrow
  • question_answer150) Which of the following techniques are 'invasive?

    A)
    Endoscope         

    B)
    CT

    C)
    MRI                                       

    D)
    Ultrasound

    View Answer play_arrow
  • question_answer151) Mitosis can be inhibited by

    A)
    auxin                    

    B)
    colchicine

    C)
    cyclins                  

    D)
    insulin

    View Answer play_arrow
  • question_answer152) The chromosomal basis of sex determination was discovered in the plant

    A)
    Rumex                 

    B)
    Coccinia

    C)
    Melandrin                          

    D)
    Sphaerocarpus

    View Answer play_arrow
  • question_answer153) Ligases or synthesises enzymes

    A)
    transfer hydrogen atom from one molecule to another

    B)
    transfer specific group from one kind of molecule to another

    C)
    forms new molecules by rearrangement of molecular structure

    D)
    forms bonds and join the molecule together using energy from breakdown of ATP

    View Answer play_arrow
  • question_answer154) Which one is correct?

    A)
    The maximum RNA formation occurs in nucleotide

    B)
    DNA synthesis can be measured by the incorporation of radioactive thymidine

    C)
    Two Okazaki fragments are joined by gyrase

    D)
    The carriers of amino acid is RNA?

    View Answer play_arrow
  • question_answer155) During a tissue culture process the student added a chemical X to the set up. After a few days, new green shoots are observed to be appearing on the callus. What was added in the form of X to this set up?

    A)
    Auxin                                   

    B)
    Cytokinin

    C)
    Gibberellins                       

    D)
    Terpenes

    View Answer play_arrow
  • question_answer156) In \[{{C}_{3}}\]plants, the carbon dioxide acceptor is

    A)
    PEP carboxylase

    B)
    phosphoglyceric acid

    C)
    ribulose-1 -5 biphosphate

    D)
    \[NADP{{H}_{2}}\]

    View Answer play_arrow
  • question_answer157) When the body of the ovule, embryo sac and microcpyle lie at right angles to the funicle, the ovule will be identified as

    A)
    hemi anatropous            

    B)
    amphitropous

    C)
    campylotropous              

    D)
    anatroprous

    View Answer play_arrow
  • question_answer158) If a heterozygous tall plant is crossed with a homozygous dwarf plant, the percentage of progeny with dwarf feature will be

    A)
    25%                                       

    B)
    50%

    C)
    75%                                       

    D)
    100%

    View Answer play_arrow
  • question_answer159) A sequence is given to a student was CAG TAG CAG TAG CAG TAG. The student rewrite the sequence as CAG ATA GCA GTA GCA GTA G. What has happened in this sequence?

    A)
    Deletion              

    B)
    Insertion

    C)
    Frame shift                        

    D)
    Point mutation

    View Answer play_arrow
  • question_answer160) As proved by the experiment conducted by Meselson and Stahl in 1958, the process of DNA replication includes

    A)
    two daughter DNAs, one is completely new and other is completely old

    B)
    Both DNAs with one old and one new strands

    C)
    Both DNAs with patches of new material in older DNA helixes

    D)
    Only (b) and (c)

    View Answer play_arrow
  • question_answer161) A DNA molecule is formed by purine and pyrimidine bases interactions with sugar. Always A = T and G = C. This relationship is given by

    A)
    Le-Chatehers principle

    B)
    Vant Hoff plot

    C)
    Wobble hypothesis

    D)
    Chargaff's rule

    View Answer play_arrow
  • question_answer162) In Darwin's theory of natural selection, the fitness corresponds to

    A)
    fovourable traits             

    B)
    dominance

    C)
    reproductive potential

    D)
    strategies for survival

    View Answer play_arrow
  • question_answer163) LSD is obtained from

    A)
    dried latex of unripe fruits of Papaver somniferum

    B)
    fruiting bodies of Claviceps purpurea

    C)
    leaves and young twigs of Erythroxylon coca

    D)
    acetylation of morphine

    View Answer play_arrow
  • question_answer164) Match the microorganisms in column I with the antibiotics they produce in column II.
    Column I Column II
    A. Penicillium notatum 1. Gentamycin
    B. S. aureofaciens 2. Streptomycin
    C. Micromonospora 3. Chlorotetracyline
    D. S. griseus 4. Penicillin
     

    A)
    A-2      B-3      C-4      D-1

    B)
     A-4      B-3      C-1      D-2

    C)
    A-1      B-4      C-2      D-3

    D)
    A-4      B-1      C-3      D-2

    View Answer play_arrow
  • question_answer165) Which of the following tools of recombinant DNA technology is wrongly paired with its  use?

    A)
    Restriction endonuclease ? Production of DNA fragments from gene cloning.

    B)
    DNA ligase ? Enzyme that cuts DNA producing sticky ends

    C)
    DNA polymerase ? Copies DNA sequences in the PCR

    D)
    Reverse transcriptase ? Production of c DNA from mRNA

    View Answer play_arrow
  • question_answer166) A flower which can be divided into two equal halves by using only plane is

    A)
    actionmorphic                  

    B)
    complete

    C)
    incomplete                        

    D)
    zygomorphic

    View Answer play_arrow
  • question_answer167) Annular and spirally thickened conducting elements generally develop in protoxylem when root or stem is

    A)
    differentiating                  

    B)
    maturing

    C)
    elongating                          

    D)
    widening

    View Answer play_arrow
  • question_answer168) During unfavourable conditions, some organisms and some lower plants produce various kind of thick walled spores, which germinates   in   presence   of  suitable conditions. This mechanism is known as

    A)
    migrate               

    B)
    conform

    C)
    suspend              

    D)
    regulate

    View Answer play_arrow
  • question_answer169) At which tropic level of the food chain, greatest amount of energy is present

    A)
    carnivores         

    B)
    herbiveres

    C)
    omnivores         

    D)
    autotrophs

    View Answer play_arrow
  • question_answer170) If the names of the genus and species in a binomial name are same then they are called as

    A)
    polytypic

    B)
    binomial nomenclature

    C)
    cladistics                             

    D)
    tautonym

    View Answer play_arrow
  • question_answer171) In the experiment ot MeseIson and Stahl, the heavy DNA (15N DNA) was allowed to undergo two rounds of replication in 14 N medium, the isolated DNA would show

    A)
    two bands is CsCI            

    B)
    one bands is CsCI

    C)
    three bands is CsCI         

    D)
    four bands is CsCI

    View Answer play_arrow
  • question_answer172) What is the update on the Central Dogma?

    A)
     RNA can be used as the template for DNA

    B)
    DNA can be made the template for RNA

    C)
    Protein can be made the template for RNA

    D)
    All proteins are enzymes

    View Answer play_arrow
  • question_answer173) Match the following column I with column II.
    Column I Column II
    A. Linkage group 1. Total number of chromosome
    B. Coupling and repulsion 2. Morgan
    C. Chromosomal theory of inheritance 3. Bateson and Punett
    D. Gene map 4. Walter Sutton
     

    A)
    A-2             B-1             C-3             D-4

    B)
    A-2             B-1             C-3             D-4

    C)
    A-4             B-3             C-2             D-1

    D)
    A-1             B-3             C-4             D-2

    View Answer play_arrow
  • question_answer174) A virus can replicate its genome without killing the host cell. This is done when the viral genome is integrated into the host genome. As the latter replicates, the former (viral genome) is also replicated. This viral genes DNA is called

    A)
    prophage           

    B)
    lytic virus

    C)
    virion                    

    D)
    retrovirus

    View Answer play_arrow
  • question_answer175) When secondary growth in thickness is initiated in a dicot root

    A)
    pericycle starels outside the primary xylem divide

    B)
    anticlinal initials between xylem and phloem divide

    C)
    cambial initials between  xylem and phloem divide

    D)
    Parenchyma cells between xylem and phloem become meristematic

    View Answer play_arrow
  • question_answer176) For the successful graft the adhesion between the Scion and Stock is essential. In your view, which of the following is the earliest event towards a good graft? I. Production of plasmodermata in the cell at the interface of Scion and Stock. II. Coordinated differentiation of vascular tissue between the Stock and Scion. III. Regeneration of cortex and epidermis over the union of Stock and Scion. IV. Production of callus tissue between the cells of Scion and Stock.

    A)
    I and II                 

    B)
    II and III

    C)
    II and IV             

    D)
    Only IV

    View Answer play_arrow
  • question_answer177) Vertically elongated cells in the lateral meristem producing axial system in the secondary xylem and phloem are known as I. fusiform initials II. combium cells III. phellogen cells

    A)
    Only I                   

    B)
    I and II

    C)
    II and III              

    D)
    l, II, and III

    View Answer play_arrow
  • question_answer178) Some structures share embryonic origin and basic structure which may not perform similar functions like leaf modified into thorns and tendrils. Such structures are called as

    A)
    analogous         

    B)
    homologous

    C)
    paralogous        

    D)
    convergent

    View Answer play_arrow
  • question_answer179) Find the incorrect pair(s) from the following I. Diplanetism: Production of two kinds of spores, e.g. Seprolegnia. II. Aflatoxin : Toxin    produced by Aspergillus flevus. III. Witches broom : Caused by ascomyctes in Taphrina in fruit trees. IV. Phytophthom: Irish famine 1,45 infestance. V. Tundu disease in wheat : Caused by nematode.

    A)
    I and II                 

    B)
    II and III

    C)
    III and IV            

    D)
    IV and V

    View Answer play_arrow
  • question_answer180) Which of the following statement is wrong in relation to coacervates?

    A)
    Large organic molecules synthesised abiotically on primitive earth

    B)
    They are protein aggregrates

    C)
    They were unstable and distintegated with time

    D)
    They are protobionts with polysaccharides, proteins and water

    View Answer play_arrow
  • question_answer181) Match the following column I with column II.
    Column I (Vascular bundles) Column II (Arrangement of vascular tissue)
    A. Radial 1. Scattered in pith
    B. Collatoral 2. Side by side
    C. Medullary 3. Secernate radi
    D. Cortical 4. Situated in cortex
     

    A)
    A-3             B-2             C-1             D-4

    B)
    A-1             B-3             C-4             D-2

    C)
    A-4             B-1            C-2             D-3

    D)
    A-2             B-4             C-3             D-1

    View Answer play_arrow
  • question_answer182) Exogenous application of gibberellins induce male flower formation on genetically female plant in

    A)
    Carica                   

    B)
    Cocinia

    C)
    Cumumis                            

    D)
    Cucurbita

    View Answer play_arrow
  • question_answer183) Match the following and choose the correct option.
    Column I Column II
    A. \[C{{O}_{2}}\] 1. 282 ppt
    B. \[C{{H}_{4}}\] 2. 316 ppb
    C. \[{{N}_{2}}O\] 3. 368 ppm
    D. \[CFC+HFC\] 4. 1750 ppb
     

    A)
    A-3             B-4             C-2             D-1

    B)
    A-4             B-3             C-2             D-1

    C)
    A-2             B-3             C-4             D-1

    D)
    A-1             B-4             C-2             D-3

    View Answer play_arrow
  • question_answer184) 13 celled male gametophyte of Selaginella consists of

    A)
    prothallial  cell, 8 jacket cells and 4 primary androgonial cells

    B)
    1 prothallial cell, 5 jacket cells and 7 primary androgonial cells

    C)
    1 prothallial cell, 4 jacket cells and 8 primary androgonial cells

    D)
    1 prothallial cell, 8 jacket cells and 4 primary androgonial cells

    View Answer play_arrow
  • question_answer185) Auxospores are produced in

    A)
    diatoms     

    B)
    green algae

    C)
    brown algae                      

    D)
    red algae

    View Answer play_arrow
  • question_answer186) \[{{N}_{2}}+8{{e}^{-}}+8{{H}^{+}}+16ATP\xrightarrow[{}]{{}}2N{{H}_{4}}+\]\[{{H}_{2}}+16ADP+16Pi\] The above equation refers to

    A)
    ammonification               

    B)
    nitrification

    C)
    nitrogen fixation             

    D)
    denitrification

    E)
    reductive amination

    View Answer play_arrow
  • question_answer187) Identify the incorrect statements regarding post fertilisation development. I. The ovary wall develops into pericarp. II. The outer integument of ovule develops into tegmen. III. The fusion nucleus (triple nucleus) develops into endosperm. IV. The ovule develops into fruits. V. The ovary develops into seed.

    A)
    II,IV and V                          

    B)
    I, III and IV

    C)
    I, II and V                            

    D)
    I, II and III

    View Answer play_arrow
  • question_answer188) Match the following column I with column II.
    Column I Column II
    A. Abscisic acid (ABA) 1. Malt yield in barley grains.
    B. Cytokinin 2. Excised radish cotyledon expansion test.
    C. Gibberellin 3. Anena coleoptiles curuatuse test.
    D. Auxin 4. Horizontal stem growth induction.
    E Ethylene 5. Rice seeding growth inhibition test.
     

    A)
    A-1          B-2           C-3            D-4             E-5

    B)
    A-5          B-1           C-2            D-3             E-4

    C)
    A-5          B-2           C-1            D-3             E-4

    D)
    A-2          B-1           C-4            D-3             E-5

    View Answer play_arrow
  • question_answer189) Read the following statements choose the correct option. I. Hydrolysis of starch produce malic acid in guard cells of stomata. II. Malic acid accumulation results into closure of guard cells. III. Breakdown of malic acid from potassium malate. IV. This opens the stomata.

    A)
    These sequence of events I to IV are formed in CAM plants

    B)
    These sequence of events are normal mechanism of stomatal apparatus

    C)
    The events are characteristics of \[{{C}_{3}}\] and \[{{C}_{4}}\]  plants.

    D)
    All statements are wrong

    View Answer play_arrow
  • question_answer190) Match the compounds given in column I with the number of carbon atoms present in them which are listed under column II. Choose the answer which gives the correct combination on of alphabets of the two columns.
    Column I Column II
    A. Oxaloacetate 1. 6-C compound
    B. Phosphoglyceraldehyde 2. 5-C compound
    C. Isocitrate 3. 4-C compound
    D. \[\text{ }\!\!\alpha\!\!\text{ -}\]ketoglutarate 4. 3-C compound
        5. 2-C compound
     

    A)
    A-4          B-5           C-2            D-3

    B)
    A-3          B-4           C-1            D-2

    C)
    A-3          B-5           C-1            D-2

    D)
    A-2          B-4           C-1            D-5

    View Answer play_arrow
  • question_answer191) Match the names of economically important plants (or their products) listed in column I with the families to which they belong given in column II. Choose the answer which gives the correct combinatoion of alphabets of the two columns.__________________
    Column I Column II
    A. Sunflower 1. Acanthaceae
    B. Tulsi 2. Compositae
    C. Coffee 3. Labiatae
    D. Vstaka 4. Pubiaceae
        5. Euphorbiaceae
     

    A)
    A-3         B-5        C-4        D-2          

    B)
    A-2         B-3        C-4        D-1

    C)
    A-2         B-4        C-1        D-5

    D)
    A-4         B-3        C-1        D-2

    View Answer play_arrow
  • question_answer192) Germination of the pollen grain on the stigma is

    A)
    in situ germination   

    B)
    in vitro germination

    C)
    in vivo germination  

    D)
    autogamy

    View Answer play_arrow
  • question_answer193) Match the following column I with column II.
    Column I Column II
    A. Sigma factor 1. \[5'\to 3'\]
    B. Capping 2. Initiation
    C. Tailing 3. Termination
    D. Coding strand 4. 5' end
        5. 3' end
     

    A)
    A-2         B-4       C-5         D-1

    B)
    A-1         B-2       C-3         D-4

    C)
    A-4         B-3       C-1         D-2

    D)
    A-5         B-3       C-2         D-1

    View Answer play_arrow
  • question_answer194) Winged fruits are found in

    A)
    Moringa              

    B)
    Pinus

    C)
    Dioscorea          

    D)
    Argemone

    View Answer play_arrow
  • question_answer195) Which of the following is incorrect for cyclic phosphorylation?

    A)
    \[{{N}_{O}}{{O}_{2}}\] given off

    B)
    No water consumed

    C)
    No \[NADP{{H}_{2}}\] synthesised

    D)
    PS-I and PS-II are involved

    View Answer play_arrow
  • question_answer196) A chromatographic separation of the leaf pigments showed that colour in leaves is due to four pigments which are

    A)
    chlorophyll-a-blue-green, chlorophyll-b-yellow green, xanthopyll-yellow, carotene-yellow orange

    B)
    chlorophyll-a-6/ue   green,   chlorophyll-b-red, xanthophyll-orange, carotene-yellow

    C)
    chlorophylt-a-yellow    green,    chlorophyllb- blue-green xanthophyll-yellow, carotene-yellow orange

    D)
    chlorophyll-a   -yellow   green   chlorophyll-b- blue-green xanthoplyll-yellow, carotene-orange

    View Answer play_arrow
  • question_answer197) Match the column and choose the correct option.
    Column I Column II
    A. Escherichia coli 1. Nif gene
    B. Rhizobium meliloti 2. Digest hydrocarbons of crude oil
    C. Bacillus thuringiensis 3. Human insulin production
    D. Pseudomonas putida 4. Bio control of fungal disease
        5. Bio and degradable insecticide
     

    A)
    A-3            B-1            C-5             D-2

    B)
    A-1            B-5            C-2             D-4

    C)
    A-2            B-3            C-4             D-1

    D)
    A-1            B-2            C-3             D-4

    View Answer play_arrow
  • question_answer198) The divisions in 'Tunica' are

    A)
    only periclinal   

    B)
    only anticlinal

    C)
    Both (a) and                      

    D)
    None of the above

    View Answer play_arrow
  • question_answer199) Source of Santonin is

    A)
    aloe                      

    B)
    artemesia

    C)
    afropa                  

    D)
    colchicum

    View Answer play_arrow
  • question_answer200)  Cells capable of division. \[\square \]= Cells lose capacity of divide. A and B are two different types of growth choose the correct match for A and B.

    A)
    A = Geometric growth and sigmoid linear curne curve B = Aithmetic growtid and      

    B)
    A = Aithmetic growth and linear curve B = Geometric growth and sigmoid curve

    C)
    A = Arithmetic growth and Sigmoid curve B = Geomtrie growth and sigmoid curve

    D)
    A = Geometric growth and linear curve B = Arithmetic growth and sigmoid curve

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