Solved papers for WB JEE Medical WB JEE Medical Solved Paper-2012

done WB JEE Medical Solved Paper-2012 Total Questions - 160

• question_answer1) In a mercury thermometer, the ice point (lower fixed point) is marked as \[{{10}^{o}}\] and the steam point (upper fixed point) is. Marked as\[{{130}^{o}}\]. At \[{{40}^{o}}\]temperature, what will this thermometer read?
  A)
   \[{{78}^{o}}\]
  done clear
  B)
  \[{{66}^{o}}\]
  done clear
  C)
  \[{{62}^{o}}\]
  done clear
  D)
   \[{{58}^{o}}\]
  done clear
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• question_answer2) The magnetic flux linked with a coil satisfies the relation \[\text{o }\!\!|\!\!\text{ =}\,\text{4}{{\text{t}}^{2}}+6t+9\,Wb,\] where t is the time in second. The emf induced in the coil at \[t=2s\] is
  A)
   22V             
  done clear
  B)
   18V
  done clear
  C)
   16V           
  done clear
  D)
   40V
  done clear
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• question_answer3) Water is flowing through a very narrow tube. The velocity of water below which the flow remains a streamline flow is known as
  A)
   relative velocity   
  done clear
  B)
   terminal velocity
  done clear
  C)
   critical velocity   
  done clear
  D)
   particle velocity
  done clear
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• question_answer4) If the velocity of light in vacuum is \[3\times {{10}^{8}}m{{s}^{-1}},\] the time taken (in nanosecond) to travel through a glass plate of thickness \[10\,cm\]and refractive index 1.5 is
  A)
   0.5               
  done clear
  B)
   1.0
  done clear
  C)
   2.0               
  done clear
  D)
   3.0
  done clear
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• question_answer5) A charge +q is placed at the origin 0 of \[x-y\]axes as shown in the figure. The work done in   taking  a charge Q from A to B along the straight line AB  is
  A)
   \[\frac{qQ}{4\pi {{\varepsilon }_{0}}}\left( \frac{a-b}{ab} \right)\]
  done clear
  B)
   \[\frac{qQ}{4\pi {{\varepsilon }_{0}}}\left( \frac{b-a}{ab} \right)\]
  done clear
  C)
   \[\frac{qQ}{4\pi {{\varepsilon }_{0}}}\left( \frac{b}{{{a}^{2}}}-\frac{1}{b} \right)\]
  done clear
  D)
    \[\frac{qQ}{4\pi {{\varepsilon }_{0}}}\left( \frac{a}{{{b}^{2}}}-\frac{1}{b} \right)\]
  done clear
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• question_answer6) What current will flow through the \[2\,k\Omega \] resistor in the circuit shown in the figure?
  A)
   3 mA 
  done clear
  B)
   6 mA
  done clear
  C)
   12 mA
  done clear
  D)
   36 Ma
  done clear
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• question_answer7) In a region, the intensity of an electric field is given by \[E=2i+3j+k\]in \[N{{C}^{-1}}.\]The electric flux through a surface \[S=10i\,{{m}^{2}}\]in the region  is
  A)
   \[5\,N{{m}^{2}}{{C}^{-1}}\]
  done clear
  B)
   \[10\,N{{m}^{2}}{{C}^{-1}}\]
  done clear
  C)
   \[15\,N{{m}^{2}}{{C}^{-1}}\]
  done clear
  D)
   \[20\,N{{m}^{2}}{{C}^{-1}}\]
  done clear
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• question_answer8) A train approaching a railway platform with a speed of \[20\,m{{s}^{-1}}\] starts blowing the whistle. Speed of sound in air is \[340\,m{{s}^{-1}}.\] If the frequency of the emitted sound from the  whistle is 640 Hz, the frequency of sound to a person standing on the platform will appear to be
  A)
   600 Hz          
  done clear
  B)
   640 Hz
  done clear
  C)
   680 Hz          
  done clear
  D)
   720 Hz
  done clear
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• question_answer9) A straight wire of length 2 m carries a current of 10 A. If this wire is placed in a uniform magnetic field of 0.15 T making an angle of \[{{45}^{o}}\] with the magnetic field, the applied force on the-wire will be
  A)
   1.5 N             
  done clear
  B)
   3N
  done clear
  C)
   \[3\sqrt{2}\,N\]
  done clear
  D)
   \[\frac{3}{\sqrt{2}}N\]
  done clear
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• question_answer10)  What is the phase difference between two simple harmonic motions represented by \[{{x}_{1}}=A\sin \left( \omega t+\frac{\pi }{6} \right)\]and \[{{x}_{2}}=A\cos (\omega t)\]?
  A)
   \[\frac{\pi }{6}\]
  done clear
  B)
   \[\frac{\pi }{3}\]
  done clear
  C)
   \[\frac{\pi }{2}\]
  done clear
  D)
   \[\frac{2\pi }{3}\]
  done clear
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• question_answer11) Heat is produced at a rate given by H in a resistor when it is connected across a supply of voltage V. If now the resistance of the resistor is doubled and the supply voltage is made V/3, then the rate of production of heat in the resistor will be
  A)
   H/18           
  done clear
  B)
   H/9
  done clear
  C)
   6H             
  done clear
  D)
   18H
  done clear
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• question_answer12) Two elements A and B with atomic numbers \[{{Z}_{A}}\]and \[{{Z}_{B}}\]are used to produce characteristic X-rays with frequencies \[{{v}_{A}}\]and \[{{v}_{B}}\]respectively. If \[{{Z}_{A}}:{{Z}_{B}}=1:2,\] then \[{{v}_{A}}:{{v}_{B}}\]will be
  A)
  \[1:\sqrt{2}\]            
  done clear
  B)
   1: 8
  done clear
  C)
   4:1             
  done clear
  D)
   1: 4
  done clear
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• question_answer13) The de-Broglie wavelength of an electron moving with a velocity c/2 (c = velocity of light in vacuum) is equal to the wavelength of a photon. The ratio of the kinetic energies of electron and photon is
  A)
   1:4   
  done clear
  B)
   1:2 
  done clear
  C)
   1:1   
  done clear
  D)
   2:1
  done clear
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• question_answer14) Two infinite parallel metal planes, contain electric charges with charge densities \[+\sigma \]and \[-\sigma \] respectively and they are separated by a small distance in air. If the permittivity of air is \[{{\varepsilon }_{0}},\]then the magnitude of the field between the two planes with its direction will be
  A)
   \[\sigma /{{\varepsilon }_{0}}\]towards the positively charged plane
  done clear
  B)
   \[\sigma /{{\varepsilon }_{0}}\]towards the negatively charged plane
  done clear
  C)
   \[\sigma /(2{{\varepsilon }_{0}})\]towards the positively charged plane
  done clear
  D)
   0 and towards any direction
  done clear
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• question_answer15) A box of mass 2 kg is placed on the roof of a car. The box would remain stationary until the carattains a maximum acceleration. Coefficient of static friction between the box and the roof of the car is 0.2 and \[g=10\,m{{s}^{-2}}.\] This maximum acceleration of the car, for the box to remain stationary, is
  A)
   \[8\,m{{s}^{-2}}\]
  done clear
  B)
   \[6\,m{{s}^{-2}}\]
  done clear
  C)
   \[4\,m{{s}^{-2}}\]
  done clear
  D)
   \[2\,m{{s}^{-2}}\]
  done clear
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• question_answer16) The dimension of angular momentum is
  A)
   \[[{{M}^{0}}{{L}^{1}}{{T}^{-1}}]\]
  done clear
  B)
   \[[{{M}^{1}}{{L}^{2}}{{T}^{-2}}]\]
  done clear
  C)
   \[[{{M}^{1}}{{L}^{2}}{{T}^{1}}]\]
  done clear
  D)
  \[[{{M}^{2}}{{L}^{1}}{{T}^{-2}}]\]
  done clear
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• question_answer17) If \[A=B+C\]have scalar magnitudes of 5, 4 3 units respectively, then the angle between A and C is
  A)
  \[{{\cos }^{-1}}(3/5)\]
  done clear
  B)
   \[{{\cos }^{-1}}(4/5)\]
  done clear
  C)
   \[\pi /2\]
  done clear
  D)
   \[{{\sin }^{-1}}(3/4)\]
  done clear
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• question_answer18) A particle is travelling along a straight line OX. The distance \[x\] (in metre) of the particle from O at a time t is given by \[x=37+27t-{{t}^{3}},\]whem is time in seconds. The distance of the particle from O when it comes to rest is
  A)
   81 m            
  done clear
  B)
   91m
  done clear
  C)
   101m           
  done clear
  D)
   111m
  done clear
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• question_answer19) A particle is projected from the ground with a kinetic energy E at an angle of \[{{60}^{o}}\] with the horizontal. Its kinetic energy at the highest point of its motion will be
  A)
   \[E/\sqrt{2}\]
  done clear
  B)
   \[E/2\]
  done clear
  C)
   \[E/4\]
  done clear
  D)
  \[E/8\]
  done clear
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• question_answer20) A bullet on penetrating 30 cm into its target loses its velocity by 50%. What additional distance will it penetrate into the target before comes to rest?
  A)
   30 cm          
  done clear
  B)
   20 cm
  done clear
  C)
   10 cm          
  done clear
  D)
   5 cm
  done clear
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• question_answer21) When a spring is stretched by 10 cm, the potential energy stored is E. When the spring is stretched by 10 cm more, the potential energy stored in the spring becomes
  A)
   2E              
  done clear
  B)
   4 E
  done clear
  C)
   6E              
  done clear
  D)
   10 E
  done clear
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• question_answer22) Average distance of the Earth from the Sun is \[{{L}_{1}}.\] If one year of the Earth = D days, one year of another planet whose average distance from the Sun is \[{{L}_{2}}\] will be
  A)
   \[D{{\left( \frac{{{L}_{2}}}{{{L}_{1}}} \right)}^{\frac{1}{2}}}days\]
  done clear
  B)
    \[D{{\left( \frac{{{L}_{2}}}{{{L}_{1}}} \right)}^{\frac{3}{2}}}days\]
  done clear
  C)
   \[D{{\left( \frac{{{L}_{2}}}{{{L}_{1}}} \right)}^{\frac{2}{3}}}days\]
  done clear
  D)
   \[D\left( \frac{{{L}_{2}}}{{{L}_{1}}} \right)days\]
  done clear
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• question_answer23) A spherical ball A of mass 4 kg, moving along a straight line strikes another spherical ball B of mass 1 kg at rest. After the collision, A and B move with velocities \[{{v}_{1}}\,m{{s}^{-1}}\]and \[{{v}_{2}}\,m{{s}^{-1}}\] respectively making angles of \[{{30}^{o}}\] and \[{{60}^{o}}\] with respect to the original direction of motion of A. The ratio \[\frac{{{v}_{1}}}{{{v}_{2}}}\] will be
  A)
   \[\frac{\sqrt{3}}{4}\]
  done clear
  B)
   \[\frac{4}{\sqrt{3}}\]
  done clear
  C)
   \[\frac{1}{\sqrt{3}}\]
  done clear
  D)
   \[\sqrt{3}\]
  done clear
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• question_answer24) The decimal number equivalent to a binary number 1011001 is
  A)
   13             
  done clear
  B)
   17
  done clear
  C)
   89              
  done clear
  D)
   178
  done clear
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• question_answer25) The frequency of the first overtone of a closed pipe of length \[{{l}_{1}}\]is equal to that of the first overtone of an open pipe of length \[{{l}_{2}}.\]The  ratio of their lengths \[({{l}_{1}}:{{l}_{2}})\] is
  A)
   2: 3             
  done clear
  B)
   4:5
  done clear
  C)
   3:5              
  done clear
  D)
   3:4
  done clear
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• question_answer26) The \[I-V\]characteristics of a metal wire at two different temperatures (\[{{T}_{1}}\]and\[{{T}_{2}}\]) are given in the adjoining figure. Here, we can conclude that
  A)
  \[{{T}_{1}}>{{T}_{2}}\]
  done clear
  B)
   \[{{T}_{1}}<{{T}_{2}}\]
  done clear
  C)
   \[{{T}_{1}}={{T}_{2}}\]
  done clear
  D)
   \[{{T}_{1}}=2{{T}_{2}}\]
  done clear
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• question_answer27) In a slide caliper, \[(m+1)\]number of vernier divisions is equal to m number of smallest main scale divisions. If d unit is the magnitude of the smallest main scale division, then the magnitude of the vernier constant is
  A)
   \[d/(m+1)unit\]
  done clear
  B)
   \[d/munit\]
  done clear
  C)
   \[md/(m+1)unit\]
  done clear
  D)
   \[(m+1)d/m\,\text{unit}\]
  done clear
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• question_answer28) From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of \[8\,m{{s}^{-1}}.\]The stone reaches the ground after a time t and falls at a distance of d from the foot of the tower. Assuming \[=10m/{{s}^{2}},\] the time t and distance d are given respectively by
  A)
   6 s, 64 m        
  done clear
  B)
   6 s, 48 m
  done clear
  C)
   4s, 32m          
  done clear
  D)
   4s, 16m
  done clear
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• question_answer29) A Wheatstone bridge has the resistances \[10\,\Omega ,\,10\,\Omega ,\,\] and \[30\Omega \] in its four arms. What resistance joined in parallel to the \[30\Omega \] resistance will bring it to the balanced condition?
  A)
   \[2\,\Omega \]
  done clear
  B)
   \[5\,\Omega \]
  done clear
  C)
   \[10\,\Omega \]
  done clear
  D)
   \[15\,\Omega \]
  done clear
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• question_answer30) An electric bulb marked as \[50\,W-200\,V\]is connected across a 100 V supply. The present power of the bulb is
  A)
   37.5 W          
  done clear
  B)
   25 W
  done clear
  C)
   12.5 W          
  done clear
  D)
   10 W
  done clear
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• question_answer31) A magnetic needle is placed in a uniform magnetic field and is aligned with the field. The needle is now rotated by an angle of \[{{60}^{o}}\] and the work done is W. The torque on the magnetic needle at this position is
  A)
   \[2\sqrt{3}\,W\]
  done clear
  B)
   \[\sqrt{3}\,W\]
  done clear
  C)
   \[\frac{\sqrt{3}}{2}W\]
  done clear
  D)
   \[\frac{\sqrt{3}}{4}W\]
  done clear
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• question_answer32) In the adjoining figure, the potential difference between X and Y is 60 V. The potential difference between the points M and N will be
  A)
   10 V  
  done clear
  B)
   15 V
  done clear
  C)
   20 V  
  done clear
  D)
   30 V
  done clear
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• question_answer33) A body when fully immersed in a liquid of specific gravity 1.2 weighs 44 gwt. The same body when fully immersed in water weighs 50 gwt. The mass of the body is
  A)
   36g            
  done clear
  B)
   48g
  done clear
  C)
   64g             
  done clear
  D)
   80g
  done clear
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• question_answer34) When a certain metal surface is illuminated with light of frequency v, the stopping potential for photoelectric current is \[{{V}_{0}}.\] When the same surface is illuminated by light of frequency \[\frac{v}{2},\]the stopping potential is \[\frac{{{V}_{0}}}{4}.\]The threshold frequency for photoelectric, emission is
  A)
   \[\frac{v}{6}\]
  done clear
  B)
   \[\frac{v}{3}\]
  done clear
  C)
   \[\frac{2v}{3}\]
  done clear
  D)
   \[\frac{4v}{3}\]
  done clear
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• question_answer35) Three blocks of masses 4 kg, 2 kg, 1 kg respectively are in contact on a frictionless table as shown in the figure. If a force of 14 N is applied on the 4 kg block, the contact force between the 4 kg and the 2 kg block will be
  A)
   2N               
  done clear
  B)
   6N
  done clear
  C)
   8N               
  done clear
  D)
   14N
  done clear
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• question_answer36) Let L be the length and d be the diameter of cross-section of a wire. Wires of the same material with different L and d are subjected to the same tension along the length of the wire. In which of the following cases, the extension of wire will be the maximum?
  A)
   = 200 cm, d = 0.5 mm
  done clear
  B)
   L = 300 cm, d = 1.0 mm
  done clear
  C)
   L = 50 cm, d = 0.05 mm
  done clear
  D)
   L = 100 cm, d = 0.2mm
  done clear
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• question_answer37) An object placed in front of a concave mirror  at a distance of \[x\,cm\]from the pole gives a 3 times magnified real image. If it is moved to a distance of \[(x+5)\,cm,\] the magnification of the image becomes 2. The focal length of the mirror is
  A)
   15 cm           
  done clear
  B)
   20 cm
  done clear
  C)
   25 cm           
  done clear
  D)
   30 cm
  done clear
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• question_answer38) 22320 cal of heat is supplied to 100 g of ice at \[0{{\,}^{o}}C.\] If the latent heat of fusion of ice is \[80\,\text{cal}\,{{g}^{-1}}\] and latent heat of vaporization of water is \[540\,\text{cal}\,{{g}^{-1}},\] the final amount of water thus obtained and its temperature respectively are
  A)
  \[8\text{ }g,\text{ }100{{\,}^{o}}C\]        
  done clear
  B)
   \[100\text{ }g,\text{ }90{{\,}^{o}}C\]
  done clear
  C)
  \[92\text{ }g,\text{ }100{{\,}^{o}}C\]       
  done clear
  D)
   \[82\text{ }g,\text{ }100{{\,}^{o}}C\]
  done clear
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• question_answer39) A progressive wave moving along \[x-\]axis is represented by y\[y=A\,\sin \left[ \frac{2\pi }{\lambda }(vt-x) \right].\] The wavelength \[(\lambda )\] at which the maximum particle velocity is 3 times the wave velocity is
  A)
   \[A/3\]
  done clear
  B)
   \[2A/(3\pi )\]
  done clear
  C)
   \[\left( \frac{3}{4} \right)\pi A\]
  done clear
  D)
   \[(2/3)\pi A\]
  done clear
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• question_answer40) Two radioactive substances A and B have decay constants \[5\lambda \] and\[\lambda \] respectively. At \[t=0,\]they have the same number of nuclei. The ratio of number of nuclei of A to that of B will be \[{{(1/e)}^{2}}\] after a time interval of
  A)
   \[\frac{1}{\lambda }\]
  done clear
  B)
   \[\frac{1}{2\lambda }\]
  done clear
  C)
   \[\frac{1}{3\lambda }\]
  done clear
  D)
   \[\frac{1}{4\lambda }\]
  done clear
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• question_answer41) Li-occupies   higher   position   in   the electrochemical series of metals as compared to Cu since
  A)
  The standard reduction potential of \[L{{i}^{+}}Li\]is lower than that of \[C{{u}^{2+}}/Cu\]
  done clear
  B)
   the standard reduction potential of \[C{{u}^{2+}}/Cu\]is lower than that of \[Li/Li\]
  done clear
  C)
   the standard oxidation potential of \[Li/L{{i}^{+}}\]is lower than that of \[Cu/C{{u}^{2+}}\]
  done clear
  D)
   Li is smaller in size as compared to Cu
  done clear
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• question_answer42) \[{{\,}_{11}}N{{a}^{24}}\]is radioactive and it decays to
  A)
   \[{{\,}_{8}}{{F}^{20}}\]and a-particles
  done clear
  B)
   \[{{\,}_{13}}A{{l}^{24}}\]and positron
  done clear
  C)
   \[{{\,}_{11}}N{{a}^{23}}\]and neutron
  done clear
  D)
   \[{{\,}_{12}}M{{g}^{24}}\]and \[\beta -\]particles
  done clear
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• question_answer43) The paramagnetic behaviour of \[{{B}_{2}}\] is due to the presence of
  A)
   two unpaired electrons in \[{{\pi }_{b}}\,MO\]
  done clear
  B)
   two unpaired electrons in \[\overset{*}{\mathop{\pi }}\,\,MO\]
  done clear
  C)
   two unpaired electrons in \[\overset{*}{\mathop{\sigma }}\,MO\]
  done clear
  D)
   two unpaired electrons in \[{{\sigma }_{b}}MO\]
  done clear
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• question_answer44) A 100 mL \[0.1=(M)\] solution of ammonium acetate is diluted by adding 100 mL of water. The pH of the resulting solution will be (\[p{{K}_{a}}\] acetic acid is nearly equal to\[p{{K}_{b}}\]of\[N{{H}_{4}}OH\])
  A)
   4.9              
  done clear
  B)
   5.0
  done clear
  C)
   7.0              
  done clear
  D)
   10.0
  done clear
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• question_answer45)  which one of the following statements is true?
  A)
  \[{{C}_{1}}-{{C}_{2}}\] bond is a\[s{{p}^{3}}-s{{p}^{3}}-\sigma -bond\]
  done clear
  B)
   \[{{C}_{2}}-{{C}_{3}}\]bond is\[s{{p}^{3}}-s{{p}^{2}}-\sigma -bond\]
  done clear
  C)
   \[{{C}_{1}}-{{C}_{2}}\] bond is a \[s{{p}^{3}}-s{{p}^{2}}-\sigma -bond\]
  done clear
  D)
   \[{{C}_{1}}-{{C}_{2}}\]bond is a \[s{{p}^{2}}-s{{p}^{2}}-\sigma -bond\]
  done clear
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• question_answer46) The well known compounds, \[(+)\,-\]lactic acid and \[(-)\,-\] lactic acid, have the same molecular formula, \[{{C}_{3}}{{H}_{6}}{{O}_{3}}.\]The correct relationship between them is
  A)
   constitutional isomerism
  done clear
  B)
   geometrical isomerism
  done clear
  C)
   identicalness
  done clear
  D)
   optical isomerism
  done clear
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• question_answer47) The stability of \[M{{e}_{2}}C=C{{H}_{2}}\]is more than that of \[MeC{{H}_{2}}CH=C{{H}_{2}}\]due to
  A)
   inductive effect of the Me groups
  done clear
  B)
   resonance effect of the Me groups
  done clear
  C)
   hyperconjugative effect of the Me groups
  done clear
  D)
   resonance as well as inductive effect of the Me groups
  done clear
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• question_answer48) Which one of the following characteristics belongs to an electrophile?
  A)
   It is any species having electron deficiency which reacts at an electron rich C-centre
  done clear
  B)
   It is any species having electron enrichment, that reacts at an electron deficient C-centre
  done clear
  C)
   It is cationic in nature
  done clear
  D)
   It is anionic in nature
  done clear
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• question_answer49) Which one of the. following methods is used to prepare \[M{{e}_{3}}COEt\]with a good yield?
  A)
   Mixing EtONa with \[M{{e}_{3}}CCl\]
  done clear
  B)
   Mixing \[M{{e}_{3}}CONa\]with \[EtCl\]
  done clear
  C)
   Heating a mixture of (1:1) EtOH and \[M{{e}_{3}}COH\]in the presence of cone. \[{{H}_{2}}S{{O}_{4}}\]
  done clear
  D)
   Treatment ofMe3COHwith \[EtMgI\]
  done clear
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• question_answer50) 58.4 g of NaCl and 180 g of glucose were separately dissolved in 1000mL of water. Identify the correct statement regarding the elevation of boiling point (b.p) of the resulting solutions.
  A)
   NaCI solution will show higher elevation of boiling point
  done clear
  B)
   Glucose solution will show higher elevation of boiling point
  done clear
  C)
   Both the solutions will show equal elevation of boiling point
  done clear
  D)
   The boiling point elevation will be shown by neither of the solutions
  done clear
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• question_answer51) Equal weights of \[C{{H}_{4}}\]and \[{{H}_{2}}\]are mixed in an empty container at \[25{{\,}^{o}}C.\]the fraction of the total pressure exerted by \[{{H}_{2}}\] is
  A)
   1/9             
  done clear
  B)
   1/2
  done clear
  C)
   8/9             
  done clear
  D)
   16/17
  done clear
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• question_answer52) Which of the following will show a negative deviation from Raoults law?
  A)
   Acetone-benzene
  done clear
  B)
   Acetone-ethanol
  done clear
  C)
   Benzene-methanol
  done clear
  D)
   Acetone-chloroform
  done clear
  View Answer play_arrow

• question_answer53) In a reversible chemical reaction at equilibrium, if the concentration of any one of the reactants is doubled, then the equilibrium constant will
  A)
   also be doubled
  done clear
  B)
   be halved
  done clear
  C)
   remains the same
  done clear
  D)
   becomes one-fourth
  done clear
  View Answer play_arrow

• question_answer54) Identify the correct statement from the following in a chemical reaction.
  A)
   The entropy always increases
  done clear
  B)
   The change in entropy along with suitable change in enthalpy decides the rate of reaction
  done clear
  C)
   The enthalpy always decreases
  done clear
  D)
   Both the enthalpy and the entropy remain constant
  done clear
  View Answer play_arrow

• question_answer55) Which one of the following is wrong about molecularity of a reaction?
  A)
   It may be whole number or fractional
  done clear
  B)
   It is calculated from reaction mechanism
  done clear
  C)
   It is the number of molecules of the reactants taking part in a single step chemical reaction
  done clear
  D)
   It is always equal to the order of elementary reaction
  done clear
  View Answer play_arrow

• question_answer56) Which of the following does not represent the mathematical expression for the Heisenberg uncertainty principle?
  A)
   \[\Delta x.\Delta P\ge h/(4\pi )\]
  done clear
  B)
   \[\Delta x.\Delta v\ge h/(4\pi m)\]
  done clear
  C)
   \[\Delta E.\Delta t\ge h/(4\pi )\]
  done clear
  D)
   \[\Delta E.\Delta x\ge h/(4\pi )\]
  done clear
  View Answer play_arrow

• question_answer57) The stable bivalency of Pb and trivalency of Bi is
  A)
   due to d contraction in Pb and Bi
  done clear
  B)
   due to relativistic contraction of the 6s orbitals of Pb and Bi, leading to inert pair effect
  done clear
  C)
   due to screening effect
  done clear
  D)
   due to attainment of noble liquid configuration
  done clear
  View Answer play_arrow

• question_answer58) The equivalent weight of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]in acidic medium is expressed in terms of its molecular  weight (M) as
  A)
   M/3   
  done clear
  B)
   M/4 
  done clear
  C)
   M/6  
  done clear
  D)
   M/7
  done clear
  View Answer play_arrow

• question_answer59) Which of the following is correct?
  A)
   Radius of \[C{{a}^{2+}}<C{{l}^{-}}<{{S}^{2-}}\]
  done clear
  B)
   Radius of \[C{{l}^{-}}<{{S}^{2-}}<C{{a}^{2+}}\]
  done clear
  C)
   Radius of \[{{S}^{2-}}=C{{l}^{-}}=C{{a}^{2+}}\]
  done clear
  D)
   Radius of \[{{S}^{2-}}<C{{l}^{-}}<C{{a}^{2+}}\]
  done clear
  View Answer play_arrow

• question_answer60) CO is practically non-polar since
  A)
   The 0-electron drift from C to O is almost nullified by the \[\pi -\]electron drift from O to C
  done clear
  B)
   the\[\sigma -\]electron drift from O to C is almost nullified by the \[\pi -\]electron drift from C to O
  done clear
  C)
   the bond moment is low
  done clear
  D)
   there is a triple bond between C and O
  done clear
  View Answer play_arrow

• question_answer61) The number of acidic protons in \[{{H}_{3}}P{{O}_{3}}\]are
  A)
   0                
  done clear
  B)
   1
  done clear
  C)
   2                
  done clear
  D)
   3
  done clear
  View Answer play_arrow

• question_answer62) When \[{{H}_{2}}{{O}_{2}}\]is shaken with an acidified solution of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]in the presence of ether, the ethereal layer turns blue due to the formation of
  A)
   \[C{{r}_{2}}{{O}_{3}}\]
  done clear
  B)
   \[CrO_{4}^{2-}\]
  done clear
  C)
   \[C{{r}_{2}}{{(S{{O}_{4}})}_{3}}\]
  done clear
  D)
   \[Cr{{O}_{5}}\]
  done clear
  View Answer play_arrow

• question_answer63) The state of hybridization of the central atom     and the number of lone pairs over the central atom in \[POC{{l}_{3}}\]are
  A)
   \[sp,0\]
  done clear
  B)
   \[s{{p}^{2}},0\]
  done clear
  C)
   \[s{{p}^{3}},0\]
  done clear
  D)
   \[ds{{p}^{2}},1\]
  done clear
  View Answer play_arrow

• question_answer64) Upon treatment with and aqueous NaOH, which of the following compounds will form iodoform?
  A)
   \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}CHO\]
  done clear
  B)
   \[C{{H}_{3}}C{{H}_{2}}COC{{H}_{2}}C{{H}_{3}}\]
  done clear
  C)
   \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH\]
  done clear
  D)
   \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CH(OH)C{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer65) Upon treatment with \[Al{{(OEt)}_{3}}\]followed by usual reactions (work up), \[C{{H}_{3}}CHO\]will produce
  A)
  only\[C{{H}_{3}}COOC{{H}_{2}}C{{H}_{3}}\]
  done clear
  B)
   a mixture of \[C{{H}_{3}}COOH\]and EtOH
  done clear
  C)
   only \[C{{H}_{3}}COOH\]
  done clear
  D)
   only \[EtOH\]
  done clear
  View Answer play_arrow

• question_answer66) Friedel-Crafts reaction using MeCl and anhydrous \[AlC{{l}_{3}}\]will take place most efficiently with
  A)
   benzene         
  done clear
  B)
   nitrobenzene
  done clear
  C)
   acetophenone    
  done clear
  D)
   toluene
  done clear
  View Answer play_arrow

• question_answer67) Which one of the following properties is exhibited by phenol?
  A)
   It is soluble in aq. NaOH and evolves \[C{{O}_{2}}\] with aq. \[NaHC{{O}_{3}}\]
  done clear
  B)
   It is soluble in aq. NaOH and does not evolve \[C{{O}_{2}}\]withe aq. \[NaHC{{O}_{3}}\]
  done clear
  C)
   It is not soluble in aq. NaOH but evolves \[C{{O}_{2}}\] with aq. \[NaHC{{O}_{3}}\]
  done clear
  D)
   It is insoluble in aq. NaOH and does not evolve \[C{{O}_{2}}\]with aq. \[NaHC{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer68) The basicity of aniline is weaker in comparison to that of methyl amine due to
  A)
   hyperconjugative effect of Me-group in\[MeN{{H}_{2}}\]
  done clear
  B)
   resonance effect of phenyl group in aniline
  done clear
  C)
   lower molecular weight of methyl amine as compared to that of aniline
  done clear
  D)
   resonance effect of\[-N{{H}_{2}}\] group in \[MeN{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer69) Under identical conditions, the \[{{S}_{N}}1\]reaction will occur most efficiently with
  A)
   tert - butyl chloride
  done clear
  B)
   1-chlorobutane
  done clear
  C)
   2-methyl 1- chloropropane
  done clear
  D)
   2-chlorobutane
  done clear
  View Answer play_arrow

• question_answer70) Identify the method by which \[M{{e}_{3}}CC{{O}_{2}}H\]can be prepared.
  A)
   Treating 1 mole of MeCOMe with 2 moles of MeMgI
  done clear
  B)
   Treating 1 mole of \[MeC{{O}_{2}}\]Me with 3 moles of MeMgI
  done clear
  C)
   Treating 1 mole of MeCHO with 3 moles of MeMgI
  done clear
  D)
   Treating 1 mole of dry ice with 1 mol of \[M{{e}_{3}}CMgI\]
  done clear
  View Answer play_arrow

• question_answer71) 20 mL 0.1 (N) acetic acid is mixed with 10 mL (N) solution of NaOH. The pH of the resulting solution is (\[p{{K}_{a}}\] of acetic acid is 4.74)
  A)
   3.74   
  done clear
  B)
   4.74 
  done clear
  C)
   5.74  
  done clear
  D)
   6.74
  done clear
  View Answer play_arrow

• question_answer72) In the brown ring complex\[[Fe{{({{H}_{2}}O)}_{5}}(NO)]S{{O}_{4}},\] nitric oxide behaves as
  A)
   \[N{{O}^{+}}\]
  done clear
  B)
   neutral NO molecule
  done clear
  C)
   \[N{{O}^{-}}\]
  done clear
  D)
   \[N{{O}^{2-}}\]
  done clear
  View Answer play_arrow

• question_answer73) The most contributing tautomeric enol form of \[MeCOC{{H}_{2}}C{{O}_{2}}\,Et\]is
  A)
  \[C{{H}_{2}}=C(OH)C{{H}_{2}}C{{O}_{2}}Et\]
  done clear
  B)
   \[MeC(OH)=CHC{{O}_{2}}Et\]
  done clear
  C)
   \[MeCOCH=C(OH)OEt\]
  done clear
  D)
   \[C{{H}_{2}}=C(OH)CH=C(OH)OEt\]
  done clear
  View Answer play_arrow

• question_answer74) By passing excess \[C{{l}_{2}}(g)\]in boiling toluene, which one of the following compounds is exclusively formed?
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer75) An equimolar mixture of toluene and chlorobenzene is treated with a mixture of cone. \[{{H}_{2}}S{{O}_{4}}\]and cone. \[HN{{O}_{3}}.\]Indicate the correct statement from the following.
  A)
   p-nitrotoluene is formed in excess
  done clear
  B)
   equimolar amounts of p-nitrotoluene and p-nitrochlorobenzene are formed
  done clear
  C)
   p-nitrochlorobenzene is formed in excess
  done clear
  D)
   m-nitrochlorobenzene is formed in excess
  done clear
  View Answer play_arrow

• question_answer76) Among the following carbocations: \[P{{h}_{2}}{{C}^{+}}C{{H}_{2}}Me\,\,(I),\]\[PhC{{H}_{2}}C{{H}_{2}}C{{H}^{+}}Ph\,(II),\]\[P{{h}_{2}}CHC{{H}^{+}}Me\,\,(III)\]and \[P{{h}_{2}}C(Me)C{{H}_{2}}\]\[\,(IV),\]the order of stability is
  A)
   IV > II > I > III   
  done clear
  B)
   I > II > III > IV
  done clear
  C)
   II > I > IV > III   
  done clear
  D)
   I > IV > III > II
  done clear
  View Answer play_arrow

• question_answer77) Which of the following is correct?
  A)
   Evaporation of water causes an increase in disorder of the system
  done clear
  B)
   Melting of ice causes a decrease in randomness of the system
  done clear
  C)
   Condensation of steam causes an increase in disorder of the system
  done clear
  D)
   There is practically no change in the randomness of the system when water is evaporated
  done clear
  View Answer play_arrow

• question_answer78) On passing C ampere of current for time t sec through 1 L of \[2\,(M)\,CuS{{O}_{4}}\]solution (atomic weight of Cu = 63. 5), the amount m of Cu (in gram) deposited on cathode will be
  A)
  \[m=Ct/(63.5\times 96500)\]
  done clear
  B)
   \[m=Ct/(31.25\times 96500)\]
  done clear
  C)
   \[m=(C\times 96500)/(31.25\times t)\]
  done clear
  D)
   \[m=(31.25\times C\times t)/96500\]
  done clear
  View Answer play_arrow

• question_answer79) If the first ionization energy of H atom is 13.6 eV, then the second ionization energy of He atom is
  A)
   27.2 eV
  done clear
  B)
   40.8 eV
  done clear
  C)
   54.4 eV
  done clear
  D)
   108.8 eV
  done clear
  View Answer play_arrow

• question_answer80) The weight of oxalic acid that will be required to prepare a 1000 mL (N/20) solution is
  A)
   126/100 g       
  done clear
  B)
   63/40 g
  done clear
  C)
   63/20 g         
  done clear
  D)
   126/20 g
  done clear
  View Answer play_arrow

• question_answer81) Which one of the following life cycle stages of Wuchereria bancrofti is infective to man?
  A)
   Microfilaria       
  done clear
  B)
   1st stage larva
  done clear
  C)
   2nd stage larva   
  done clear
  D)
   3rd stage larva
  done clear
  View Answer play_arrow

• question_answer82) Which one of the following life cycle stages of malarial parasite is responsible for relapse of malarial symptoms?
  A)
   Merozoite        
  done clear
  B)
   Sporozoite
  done clear
  C)
   Hypnozoite       
  done clear
  D)
   Gametocyte
  done clear
  View Answer play_arrow

• question_answer83) The correct sequence of different phases of cell cycle is
  A)
   \[S-{{G}_{1}}-{{G}_{2}}-M\]
  done clear
  B)
   \[{{G}_{1}}-S-{{G}_{2}}-M\]
  done clear
  C)
   \[{{G}_{2}}-S-{{G}_{1}}-M\]
  done clear
  D)
   \[{{G}_{1}}-{{G}_{2}}-S-M\]
  done clear
  View Answer play_arrow

• question_answer84) Which one of the following poultry birds is not an english breed?
  A)
   Sussex           
  done clear
  B)
   Australorp
  done clear
  C)
   Orpington        
  done clear
  D)
   Minorca
  done clear
  View Answer play_arrow

• question_answer85) The important gas which was absent during the formation of Earth is                        
  A)
   oxygen          
  done clear
  B)
   hydrogen
  done clear
  C)
   nitrogen         
  done clear
  D)
   carbon dioxide
  done clear
  View Answer play_arrow

• question_answer86) In spermatogenesis, reduction division of chromosome occurs during conversion of
  A)
   spermatogonia to primary spermatocytes
  done clear
  B)
   primary  spermatocytes  to  secondary spermatocytes
  done clear
  C)
   secondary spermatocytes to spermatids
  done clear
  D)
   spermatids to sperms
  done clear
  View Answer play_arrow

• question_answer87) The carcinoma, a type of cancer, originates from
  A)
   blood            
  done clear
  B)
   connective tissue
  done clear
  C)
   epithelial tissue   
  done clear
  D)
   lymph gland
  done clear
  View Answer play_arrow

• question_answer88) Homo erectus evolved during
  A)
   Oligocene        
  done clear
  B)
   Pliocene
  done clear
  C)
   Pleistocene       
  done clear
  D)
   Miocene
  done clear
  View Answer play_arrow

• question_answer89) Which one of the following is not included under in situ conservation?
  A)
   National park     
  done clear
  B)
   Wild life sanctuary
  done clear
  C)
   Zoological garden
  done clear
  D)
   Biosphere reserve
  done clear
  View Answer play_arrow

• question_answer90) Animals are classified into hierarchical groups. In which one of the following, the largest number of species is found?
  A)
   Genus           
  done clear
  B)
   Order
  done clear
  C)
   Family           
  done clear
  D)
   Cohort
  done clear
  View Answer play_arrow

• question_answer91) The blood vessel which supply oxygenated blood to cardiac tissue is
  A)
   coronary artery   
  done clear
  B)
   coronary vein
  done clear
  C)
   coronary sinus    
  done clear
  D)
   pulmonary vein
  done clear
  View Answer play_arrow

• question_answer92) Vegus nerve is a
  A)
   mixed Xcranial nerve
  done clear
  B)
   mixed XI cranial nerve
  done clear
  C)
   mixed X thoracic nerve
  done clear
  D)
   sensory X cranial nerve
  done clear
  View Answer play_arrow

• question_answer93) The number of spinal nerves in human is
  A)
   10 pairs          
  done clear
  B)
   12 pairs
  done clear
  C)
   43 pairs          
  done clear
  D)
   31 pairs
  done clear
  View Answer play_arrow

• question_answer94) Third and fourth ventricles of the brain are connected by
  A)
   aqueduct of Sylvious
  done clear
  B)
   foramen of Monro
  done clear
  C)
   foramen of Magnum
  done clear
  D)
   corpus callosum
  done clear
  View Answer play_arrow

• question_answer95) All or none law is not applicable for
  A)
   whole skeletal muscle
  done clear
  B)
   single skeletal muscle fibre
  done clear
  C)
   whole cardiac muscle
  done clear
  D)
   single smooth muscle fibre
  done clear
  View Answer play_arrow

• question_answer96) Numerical aperture of microscope lens is expressed by
  A)
   angular aperture only
  done clear
  B)
   refractive index only
  done clear
  C)
   both angular aperture and refrative index
  done clear
  D)
   wave length of the light used
  done clear
  View Answer play_arrow

• question_answer97) Which one of the following is not true for enzymes?
  A)
   They act on a specific substrate
  done clear
  B)
   They are made up of fat and sugar
  done clear
  C)
   They act at a specific temperature
  done clear
  D)
   They act at a specific pH
  done clear
  View Answer play_arrow

• question_answer98) Living cells placed in isotonic solution (0.9% saline) retain their size and shape. This is based on the concept of
  A)
   osmosis           
  done clear
  B)
   diffusion
  done clear
  C)
   facilitated diffusion
  done clear
  D)
   transpiration
  done clear
  View Answer play_arrow

• question_answer99) Identify the polysaccharide with \[\beta -\]glycosidic bond
  A)
   starch             
  done clear
  B)
   glycogen
  done clear
  C)
   sucrose           
  done clear
  D)
   cellulose
  done clear
  View Answer play_arrow

• question_answer100) Simple storage protein that coagulates upon heating but remains soluble in dilute salt solution is correctly exemplified by
  A)
   globulin          
  done clear
  B)
   albumin
  done clear
  C)
   histone           
  done clear
  D)
   collagen
  done clear
  View Answer play_arrow

• question_answer101) Melting of DNA at an elevated temperature \[(70{{\,}^{o}}C)\] is primarily due to the breakdown of
  A)
   phosphodiester bonds
  done clear
  B)
   glycosidic bonds
  done clear
  C)
   disulphide bonds
  done clear
  D)
   hydrogen bonds
  done clear
  View Answer play_arrow

• question_answer102) N-acetyl muramic acid is found in
  A)
   cell wall component of plant
  done clear
  B)
   cell wall component of Gram positive bacteria
  done clear
  C)
   cell wall component of fungi
  done clear
  D)
   viral coat material
  done clear
  View Answer play_arrow

• question_answer103) Identify the bacterium that appears violet after Gram staining
  A)
   Salmonella enterica
  done clear
  B)
   Escherichia coli
  done clear
  C)
   Mycobacterium tuberculosis
  done clear
  D)
   Rhizobium meliloti
  done clear
  View Answer play_arrow

• question_answer104) The usual source of restriction endonucleases used in gene cloning is from
  A)
   fungi             
  done clear
  B)
   bacteria
  done clear
  C)
   plants            
  done clear
  D)
   viruses
  done clear
  View Answer play_arrow

• question_answer105) Portion of apical meristem that gives rise to xylem tissue is called
  A)
   protoxylem      
  done clear
  B)
   procambium
  done clear
  C)
   metaxylem    
  done clear
  D)
   tracheid
  done clear
  View Answer play_arrow

• question_answer106) For a clean environment, which one of the following is not essential?
  A)
   Producer,        
  done clear
  B)
   Consumer
  done clear
  C)
   Decomposer      
  done clear
  D)
   Polluter
  done clear
  View Answer play_arrow

• question_answer107) Inulin is a type of
  A)
   protein           
  done clear
  B)
   carbohydrate
  done clear
  C)
   lipid              
  done clear
  D)
   nucleic acid
  done clear
  View Answer play_arrow

• question_answer108) Higher animals cannot synthesize few fatty acids which are very essential for their growth and development. These fatty acids are  typically
  A)
   saturated         
  done clear
  B)
   cyclic
  done clear
  C)
   unsaturated       
  done clear
  D)
   branched
  done clear
  View Answer play_arrow

• question_answer109) Identify the membrane across which the proton \[({{H}^{+}})\] gradient facilitates ATP synthesis in a typical eukaryotic cell
  A)
   plasma membrane
  done clear
  B)
   mitochondrial inner membrane
  done clear
  C)
   mitochondrial outer membrane
  done clear
  D)
   nclear membrane
  done clear
  View Answer play_arrow

• question_answer110) What is the substrate for lipase enzyme?
  A)
   Protein           
  done clear
  B)
   Carbohydrate
  done clear
  C)
   Lipid             
  done clear
  D)
   Nucleic acid
  done clear
  View Answer play_arrow

• question_answer111) After forceful inspiration, the amount of air that can be breathed out by maximum forced expiration is equal to
  A)
   Inspiratory Reserve Volume (IRV) + Expiratory Reserve Volume (ERV) + Tidal Volume (TV) + Residual Volume (RV)
  done clear
  B)
   IRV + RV + ERV
  done clear
  C)
   IRV + TV + ERV
  done clear
  D)
   TV + RV + ERV
  done clear
  View Answer play_arrow

• question_answer112) Amount of oxygen supplied by 100 mL arterial blood while passing through the tissues is
  A)
  \[0.4-0.6\text{ }mL\]       
  done clear
  B)
   \[4-6\text{ }mL\]
  done clear
  C)
  \[14-15\text{ }mL\]        
  done clear
  D)
   \[19-20\text{ }mL\]
  done clear
  View Answer play_arrow

• question_answer113) Cholecystokinin stimulates the secretion of
  A)
   bile              
  done clear
  B)
   gastric juice
  done clear
  C)
   pancreatic juice   
  done clear
  D)
   succus enfericus
  done clear
  View Answer play_arrow

• question_answer114) In a normal adult human, the average cardiac output (stroke volume) is
  A)
   47 mL           
  done clear
  B)
   70 mL
  done clear
  C)
   5L              
  done clear
  D)
   3.3L
  done clear
  View Answer play_arrow

• question_answer115) Humoral immunity is mediated by
  A)
   cytotoxic T-cell    
  done clear
  B)
   plasma cell
  done clear
  C)
   eosinophil        
  done clear
  D)
   neutrophil
  done clear
  View Answer play_arrow

• question_answer116) The expanded name of MRI is
  A)
   Medical Reserach Instrument
  done clear
  B)
   Magnetic Resonance Imaging
  done clear
  C)
   Magnetic Research Institute
  done clear
  D)
   Medical Resonance Imaging
  done clear
  View Answer play_arrow

• question_answer117) The volume of Anatomical Dead Space air is normally
  A)
   230 mL         
  done clear
  B)
   210 mL
  done clear
  C)
   190 mL         
  done clear
  D)
   150 mL
  done clear
  View Answer play_arrow

• question_answer118) Bone is mainly composed of
  A)
   iron and phosphorus
  done clear
  B)
   sulphur and calcium
  done clear
  C)
   calcium and phosphorus
  done clear
  D)
   calcium and magnesium
  done clear
  View Answer play_arrow

• question_answer119) Which one of the following is incorrect for Atherosclerosis?
  A)
   Constriction of arterial luman reduces the blood flow
  done clear
  B)
   Loss of dilatation ability of the arterial wall and its rupture
  done clear
  C)
   Cholesterol deposition at the inner wall of the artery
  done clear
  D)
   Proliferation of the vascular muscles
  done clear
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• question_answer120) Which one of the following statement is incorrect?
  A)
   Glucagon is secreted by pancreas
  done clear
  B)
   Androgen is produced by ovary
  done clear
  C)
   Thyroxine is secreted by thyroid
  done clear
  D)
   Oxytocih is secreted by pituitary
  done clear
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• question_answer121) Juxtaglomerular apparatus is made up of
  A)
   Juxtaglomerular cell, macula densa and lacis cell
  done clear
  B)
   Juxtaglomerular cell, Purkinje cell and chied cell
  done clear
  C)
   Juxtaglomerular  cell,   lacis   cell  and myoepithelial cell
  done clear
  D)
   Juxtaglomerular cell, macula densa and Argentaffin cell
  done clear
  View Answer play_arrow

• question_answer122) Which vitamin helps in blood coagulation?
  A)
   Vitamin-K        
  done clear
  B)
   Vitamin-C
  done clear
  C)
   Vitamin-A        
  done clear
  D)
   Vitamin-D
  done clear
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• question_answer123) Presence of which of the following hormone in the urine confirms pregnancy?
  A)
   Progesterone
  done clear
  B)
   Oestrogen
  done clear
  C)
   Human chorionic gonadotropin
  done clear
  D)
   Prolactin
  done clear
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• question_answer124) Which one of the following is mainly responsible for the second heart sound?
  A)
   Closure of atrioventricular valves
  done clear
  B)
   Opening of atrioventricular valves
  done clear
  C)
   Closure of semilunar valves
  done clear
  D)
   Thrust of blood on ventricular wall during atrial contraction
  done clear
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• question_answer125) Brunners gland is present in
  A)
   duodenum       
  done clear
  B)
   jejunum
  done clear
  C)
   ileum     
  done clear
  D)
   rectum
  done clear
  View Answer play_arrow

• question_answer126) In higher plants, continuity of cytoplasm from one cell to its neighbouring cells is established through
  A)
   apoplast          
  done clear
  B)
   chloroplast
  done clear
  C)
   leucoplast        
  done clear
  D)
   symplast
  done clear
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• question_answer127) In plant tissue culture, the callus tissues can be regenerated into complete plantlets primarily by altering the concentration of
  A)
   sugars            
  done clear
  B)
   vitamins
  done clear
  C)
   amino acids       
  done clear
  D)
   hormones
  done clear
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• question_answer128) If you want to develop hybrid seeds within a bisexual flower, the following part needs to be removed from the same flower
  A)
   stigma           
  done clear
  B)
   ovary
  done clear
  C)
   anther           
  done clear
  D)
   oviduct
  done clear
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• question_answer129) Xenogamy is essentially a type of
  A)
   cleistogamy      
  done clear
  B)
   allogamy
  done clear
  C)
   autogamy       
  done clear
  D)
   homogamy
  done clear
  View Answer play_arrow

• question_answer130) Basic principle of developing transgenic plants and animals is to introduce the gene of interest into the nucleus of
  A)
   somatic cell       
  done clear
  B)
   vegetative cell
  done clear
  C)
   germ cell         
  done clear
  D)
   body cell
  done clear
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• question_answer131) Who is regarded as the Father of Taxonomy?
  A)
   John Ray        
  done clear
  B)
   Carolus Linnaeus
  done clear
  C)
   AP de Candolle   
  done clear
  D)
   Charles Darwin
  done clear
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• question_answer132) Which pairs of the following diseases are  caused by   two   genes   located   on   human X-chromosomes?
  A)
   Colour blindness and phenylketonuria
  done clear
  B)
   Colour blindness and haemophilia
  done clear
  C)
   Colour blindness and albinism
  done clear
  D)
   Colour blindness and hypertrichosis
  done clear
  View Answer play_arrow

• question_answer133) Which one of the following triplet codon is known as initiation codon?
  A)
  UUU  
  done clear
  B)
  UAA
  done clear
  C)
   AUG  
  done clear
  D)
   UGA
  done clear
  View Answer play_arrow

• question_answer134) Muga silk worm feeds on
  A)
   Shorea           
  done clear
  B)
   Terminalia
  done clear
  C)
   Machilus         
  done clear
  D)
   Moms
  done clear
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• question_answer135) Mammals have originated from which of the following
  A)
   Pisces            
  done clear
  B)
   Amphibia
  done clear
  C)
   Reptilia           
  done clear
  D)
   Aves
  done clear
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• question_answer136) Which one of the following animal phyla possesses spicule?
  A)
   Annelida         
  done clear
  B)
   Mollusca
  done clear
  C)
   Porifera          
  done clear
  D)
   Platyhelminthes
  done clear
  View Answer play_arrow

• question_answer137) Fin rot of fish is caused by
  A)
   Aeromonas       
  done clear
  B)
   Pseudomonas
  done clear
  C)
   Branchiomyces    
  done clear
  D)
   Xenopsylla
  done clear
  View Answer play_arrow

• question_answer138) Which one of the following animals possesses gaint chromosome?
  A)
   Drosophila       
  done clear
  B)
   Mouse
  done clear
  C)
   Pigeon           
  done clear
  D)
   Elephant
  done clear
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• question_answer139) The vein which is formed from the capillaries of an organ and terminates into capillaries in some other organ before entering the heart is called
  A)
   pulmonary vein   
  done clear
  B)
   coronary vein
  done clear
  C)
   portal vein       
  done clear
  D)
   systemic vein
  done clear
  View Answer play_arrow

• question_answer140) Which one of the following genus of insects prefer to breed in clean water and their larvae lie parallel to the surface of water?
  A)
   Anopheles         
  done clear
  B)
   Culex
  done clear
  C)
   Aedes             
  done clear
  D)
   Phlebotomus
  done clear
  View Answer play_arrow

• question_answer141) During synaptic transmission of nerve impulse, neurotransmitter (P) is released from synaptic vesicles by the action of ions (Q). Choose the correct P and Q.
  A)
   P-Acetylcholine, \[Q-C{{a}^{2+}}.\]
  done clear
  B)
   P-Acetylcholine, \[Q-N{{a}^{+}}\]
  done clear
  C)
   P-GABA, \[Q-N{{a}^{+}}\]
  done clear
  D)
   P-Cholinesterase, \[Q-C{{a}^{2+}}\]
  done clear
  View Answer play_arrow

• question_answer142) Choose the right sequential phenomena  among the following during the delivery of \[{{O}_{2}}\] from blood to tissue.

  I. Absorption of \[C{{O}_{2}}\]by the blood.

  II. Reaction of absorbed \[C{{O}_{2}}\]with \[{{H}_{2}}O\]to form \[{{H}_{2}}C{{O}_{3}}\]within RBC and its conversion into \[{{H}^{+}}\]and \[HCO_{3}^{-}\]ions.

  III. Reaction of absorbed \[C{{O}_{2}}\]with \[{{H}_{2}}O\]in plasma to form \[{{H}_{2}}C{{O}_{3}}\]and its conversion into \[{{H}^{+}}\]and \[HCO_{3}^{-}\]ions.

  IV. Combination of \[{{H}^{+}}\] with haeme portion of \[Hb{{O}_{2}}\]to release\[{{O}_{2}}.\]

  V. Combination of \[HCO_{3}^{-}\]with haeme portion of \[Hb{{O}_{2}}\]to form reduced haemoglobin and release of \[{{O}_{2}}.\]

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

• question_answer143) Oral contraceptive pill is composed of
  A)
   oestrogen and progesterone
  done clear
  B)
   oestrogen and testosterone
  done clear
  C)
   progesterone and testosterone
  done clear
  D)
  oestrogen and growth hormone
  done clear
  View Answer play_arrow

• question_answer144) Match the items in column I with those in Column II and choose the correct answer.

  Column I	Column B
  A. Electroence- phalography	1. A graphic recording of the electrical activity of heart
  B. Electrocar- diography	2. A graphic recording of the electrical activity of brain
  C. Endoscopy	3. A technique that gives image automatically in multiple planes
  D. MRI	4. To view within the body without cutting through the overlaying tissues

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

• question_answer145) What are ketone bodies?
  A)
   Acetoacetic acid, acetone and beta-hydroxybutyric acid
  done clear
  B)
   Nicotinic acid, folic acid and ascorbic acid
  done clear
  C)
   Acetone, beta-hydroxybutyryl Co-A and acetoacetic acid
  done clear
  D)
   Acetic acid, acetone and beta-hydroxybutyric acid
  done clear
  View Answer play_arrow

• question_answer146) Identify the correct sequence of events in the viral replication process.

  I. Eclipse

  II. Maturation

  III. Adsorption

  IV. Assembly

  V. Penetration

  VI. Lysis

  A)
   I, II, III, iV, V, VI   
  done clear
  B)
   II, I, III, IV, V, VI
  done clear
  C)
   III, V I, II, IV VI    
  done clear
  D)
   III, V, VI, IV II, I
  done clear
  View Answer play_arrow

• question_answer147) Match the items in column I with those in Column II and choose the correct answer.

  	Column I		Column II
  A.	Blue-green algae as biofertilizer	1.	Ectomycorrhiza
  B.	Fungi as biofertilizer	2.	Thiobacillus sp.
  C.	Free living nitrogen fixing bacteria	3.	Anabaena sp.
  D.	Phosphate solubilizing bacteria	4.	Clostridium sp.
  		5.	Azospirillum sp.

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

• question_answer148) A man having the genotype EEFfGgHH can produce P number of genetically different sperms and a woman of genotype HLLMmNn can generate Q number of genetically different eggs. Determine the values of P and Q.
  A)
   P-4, Q-4        
  done clear
  B)
   P-4, Q-8
  done clear
  C)
   P-8, Q-4        
  done clear
  D)
   P-8, Q-8
  done clear
  View Answer play_arrow

• question_answer149) In an organism, tall phenotype is dominant over recessive dwarf phenotype and the alleles are designated as T and t, respectively. Upon crossing two different individuals, total 250 offsprings were obtained, out of which 124 displayed tall phenotype and rest were dwarf Thus, the genotype of the parents were
  A)
  \[TT\times TT\]          
  done clear
  B)
   \[TT\times tt\]
  done clear
  C)
  \[Tt\times Tt\]           
  done clear
  D)
   \[Tt\times tt\]
  done clear
  View Answer play_arrow

• question_answer150)  Identify the incorrect statements from the following

  I. Cymose inflorescence found in Hibiscus sp.

  II. Hypenthodium is found in Ficus benghalensis

  III. Synandrous stamen is found in Calotropis IV. Hesperidium type of fruit is mango

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

• question_answer151) How many ATP molecules will be generated in a plant system during complete oxidation of 40 moles of glucose?
  A)
   190   
  done clear
  B)
   380  
  done clear
  C)
   1520  
  done clear
  D)
   3040
  done clear
  View Answer play_arrow

• question_answer152) A-DNA is
  A)
   left-handed helix with 12 nucleotide pairs per turn
  done clear
  B)
   right-handed helix with 11 nucleotide pairs per turn
  done clear
  C)
   right handed helix with 12 nucleotide pairs per turn
  done clear
  D)
   left-handed helix with 11 nucleotide pairs per turn
  done clear
  View Answer play_arrow

• question_answer153) Bursa fabricius is an important organ of birds. This organ is associated with
  A)
   generation of basophil
  done clear
  B)
   production of uric acid
  done clear
  C)
   metabolism of fatty acids
  done clear
  D)
   generation of B-cell
  done clear
  View Answer play_arrow

• question_answer154) Which one of the following is a population?
  A)
   A spider and some trapped flies in its web
  done clear
  B)
   Earthworm that lives in a grassland along with other arthropods
  done clear
  C)
   All the plants in a forest
  done clear
  D)
   All the oak trees in a forest
  done clear
  View Answer play_arrow

• question_answer155) In most simple type of canal system of  Porifera, water flows through which one of the following ways?
  A)
   Ostia\[\to \] Spongocoel\[\to \] Osculum\[\to \] Exterior
  done clear
  B)
   Spongocoel \[\to \] Ostia \[\to \] Osculum \[\to \] Exterior
  done clear
  C)
   Osculum\[\to \] Spongocoel\[\to \] Ostia \[\to \] Exterior
  done clear
  D)
   Osculum \[\to \] Ostia \[\to \] Spongocoel \[\to \] Exterior
  done clear
  View Answer play_arrow

• question_answer156) What would be the percentage of thymine in a double stranded DNA sample which  ontains 20% cytosine of the total bases?
  A)
  10%            
  done clear
  B)
  20%
  done clear
  C)
  30%            
  done clear
  D)
   400%
  done clear
  View Answer play_arrow

• question_answer157) Which one of the following is a correct match?
  A)
   Filariasis - Taenia solium
  done clear
  B)
   Encephalitis - Culex vishnui
  done clear
  C)
   Malaria - Phlebotomus sp.
  done clear
  D)
   Kala-azar - Anopheles Stephens!
  done clear
  View Answer play_arrow

• question_answer158) One micrometer is equal to
  A)
   0.0001 mm
  done clear
  B)
   0.001 mm
  done clear
  C)
   0.01 mm
  done clear
  D)
   0.00001 mm
  done clear
  View Answer play_arrow

• question_answer159) Identify the origin of sympathetic nerve fibres and the location of their ganglia.
  A)
   They arise from thoracolumbar region of spinal cord and form ganglia just beside the vertebral column
  done clear
  B)
   They arise from thoracocervical region of spinal cord and form ganglia just beside the vertebral column
  done clear
  C)
   They arise from cranio-sacral region of spinal cord and from ganglia very close to effector organ
  done clear
  D)
   They arise from thoracolumbar region of spinal cord and form ganglia very close to effector organ
  done clear
  View Answer play_arrow

• question_answer160) Among the following characteristics, indicate the   correct  combination  applicable to conditional reflex.

  I. Acquired by practice or learning

  II. Non acquired by birth

  III. Does not abolish by lack of practice

  IV. Participation of cerebral cortex

  V. Originates spontaneously

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