Solved papers for NEET AIPMT SOLVED PAPER MAINS 2010

done AIPMT SOLVED PAPER MAINS 2010

  • question_answer1) A current loop consists of two identical semicircular parts each of radius R, one lying in the x-y plane and the other in x-z plane. If the current in the loop is i. The resultant magnetic field due to the two semicircular parts at their common centre is

    A) \[\frac{{{\mu }_{0}}i}{2\sqrt{2}R}\]

    B) \[\frac{{{\mu }_{0}}i}{2R}\]

    C) \[\frac{{{\mu }_{0}}i}{4R}\]

    D) \[\frac{{{\mu }_{0}}i}{\sqrt{2}R}\]

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  • question_answer2) The following figure shows a logic gate circuit with two inputs A and B and the output Y. The voltage waveforms of A, B and Y are as given The logic gate is

    A) NOR gate

    B) OR gate

    C) AND gate

    D) NAND gate

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  • question_answer3) Two parallel metal plates having charges +Q and -Q face each other at a certain distance between them. If the plates are now dipped in kerosene oil tank, the electric field between the plates will

    A) become zero

    B) increase

    C) decrease

    D) remain same

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  • question_answer4) The electric field at a distance \[\frac{3R}{2}\]from the centre of a charged conducting spherical shell of radius R is E. The electric field at a distance\[\frac{R}{2}\]from the centre of the sphere is

    A) zero

    B) E

    C) \[\frac{E}{2}\]

    D) \[\frac{E}{3}\]

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  • question_answer5) A student measures the distance traversed in free fall of a body, initially at rest in a given time. He uses this data to estimate g, the acceleration due to gravity. If the maximum percentage errors in measurement of the distance and the time are e1 and e2 respectively, the percentage error in the estimation of g is

    A) \[{{e}_{2}}-{{e}_{1}}\]

    B) \[{{e}_{1}}+2{{e}_{2}}\]

    C) \[{{e}_{1}}+{{e}_{2}}\]

    D) \[{{e}_{1}}-2{{e}_{2}}\]

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  • question_answer6) When monochromatic radiation of intensity I falls on a metal surface, the number of photoelectron and their maximum kinetic energy are N and T respectively. If the intensity of radiation is \[2I,\]the number of emitted electrons and their maximum kinetic energy are respectively

    A) N and 2T

    B) 2N and T

    C) 2N and 2T

    D) N and T

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  • question_answer7) The electric field of an electromagnetic wave in free space is given by \[\overset{\to }{\mathop{\mathbf{E}}}\,=10\cos ({{10}^{7}}t+kx)\mathbf{\hat{j}}v/m,\] where t and x are in seconds and metres respectively. It can be inferred that               

    (1) The wavelength \[\lambda \]is 188.4 m.
    (2) The wave number k is 0.33 rad/m.
    (3) The wave amplitude is 10 V/m.
    (4) The wave is propagating along. + x direction
    Which one of the following pairs of statements is correct ?

    A) (3) and (4)    

    B) (1) and (2)         

    C) (2) and (3)    

    D) (1) and (3)

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  • question_answer8) The speed of light in media \[{{M}_{1}}\] and \[{{M}_{2}}\] is \[1.5\times {{10}^{8}}\] m/s and \[2.0\times {{10}^{8}}\] m/s respectively. A ray of light enters from medium \[{{M}_{1}}\] to \[{{M}_{2}}\] at an incidence angle i. If the ray suffers total internal reflection, the value of i is                                                                                          

    A) equal to \[{{\sin }^{-1}}\left( \frac{2}{3} \right)\]

    B) equal to or less than \[{{\sin }^{-1}}\left( \frac{3}{5} \right)\]

    C) equal to or greater than \[{{\sin }^{-1}}\left( \frac{3}{4} \right)\]

    D)  less than \[{{\sin }^{-1}}\left( \frac{2}{3} \right)\]

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  • question_answer9) A ray of light is incident on a \[{{60}^{o}}\] prism at the minimum deviation position. The angle of refraction at the first face (ie, incident face) of the prism is

    A) zero

    B) \[{{30}^{o}}\]

    C) \[{{45}^{o}}\]

    D) \[{{60}^{o}}\]

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  • question_answer10) For transistor action

    (1) Base, emitter and collector regions should have   similar   size    and   doping concentrations.
    (2) The base region must be very thin and lightly doped.
    (3) The emitter-base junction is forward biased and base-collector junction is reverse biased.
    (4) Both the emitter-base junction as well as the base collector junction are forward biased.
    Which one of the following pairs of statements is correct?

    A)  (4) and (1)     

    B)  (1) and (2)         

    C)  (2) and (3)     

    D)  (3) and (4)

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  • question_answer11) The additional kinetic energy to be provided to a satellite of mass m revolving around a planet of mass M, to transfer it from a circular orbit of radius \[{{R}_{1}}\] to another of radius \[{{R}_{2}}({{R}_{2}}>{{R}_{1}})\] is

    A) \[GmM\left( \frac{1}{R_{1}^{2}}-\frac{1}{R_{2}^{2}} \right)\]

    B) \[GmM\left( \frac{1}{R_{1}^{{}}}-\frac{1}{R_{2}^{{}}} \right)\]

    C) \[2GmM\left( \frac{1}{R_{1}^{{}}}-\frac{1}{R_{2}^{{}}} \right)\]

    D) \[\frac{1}{2}GmM\left( \frac{1}{R_{1}^{{}}}-\frac{1}{R_{2}^{{}}} \right)\]

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  • question_answer12) The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is

    A) \[{{60}^{o}}\]

    B) \[{{15}^{o}}\]

    C) \[{{30}^{o}}\]

    D) \[{{45}^{o}}\]

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  • question_answer13) From a circular disc of radius R and mass 9 M, a small disc of mass M and radius \[\frac{R}{3}\]is removed concentrically. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through its centre is

    A) \[\frac{40}{9}M{{R}^{2}}\]

    B) \[M{{R}^{2}}\]

    C) \[4M{{R}^{2}}\]

    D) \[\frac{4}{9}M{{R}^{2}}\]

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  • question_answer14) A particle moves in x-y plane according to rule \[x=a\sin \omega t\]and\[y=a\cos \omega t\]. The particle follows

    A) an elliptical path

    B) a circular path

    C) a parabolic path

    D) a straight line path inclined equally to x and y-axes

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  • question_answer15) A closely wound solenoid of 2000 turns and area of cross-section\[1.5\times {{10}^{-4}}{{m}^{2}}\]carries a current of 2.0 A. It is suspended through its centre and perpendicular to its length, allowing it to turn in a horizontal plane in a uniform magnetic field \[5\times {{10}^{-2}}T\] making an angle of \[30{}^\circ \] with the axis of the solenoid. The torque on the solenoid will be

    A) \[3\times {{10}^{-3}}N-m\]

    B) \[1.5\times {{10}^{-3}}N-m\]

    C) \[1.5\times {{10}^{-2}}N-m\]

    D) \[3\times {{10}^{-2}}N-m\]

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  • question_answer16) The decay constant of a radio isotope is \[\lambda .\] If\[{{A}_{1}}\]and \[{{A}_{2}}\] are its activities at times \[{{t}_{1}}\] and \[{{t}_{2}}\] respectively, the number of nuclei which have decayed during the time \[({{t}_{1}}-{{t}_{2}})\]

    A) \[{{A}_{1}}{{t}_{1}}-{{A}_{2}}{{t}_{2}}\]

    B) \[{{A}_{1}}-{{A}_{2}}\]

    C) \[\frac{({{A}_{1}}-{{A}_{2}})}{\lambda }\]

    D) \[\lambda ({{A}_{1}}-{{A}_{2}})\]

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  • question_answer17) A particle having a mass of \[{{10}^{-2}}\,kg\] carries a charge of \[5\times {{10}^{-8}}C.\]The particle is given an initial horizontal velocity of\[{{10}^{5}}\text{m}{{\text{s}}^{-1}}\] in the presence of electric field \[\overset{\to }{\mathop{\mathbf{E}}}\,\]and magnetic field \[\overset{\to }{\mathop{\mathbf{B}}}\,\]. To keep the particle moving in a horizontal direction, it is necessary that  

    (1) \[\overset{\to }{\mathop{\mathbf{B}}}\,\] should be perpendicular to the direction of velocity and \[\overset{\to }{\mathop{\mathbf{E}}}\,\]should be along the direction of velocity.
    (2) Both \[\overset{\to }{\mathop{\mathbf{B}}}\,\] and\[\overset{\to }{\mathop{\mathbf{E}}}\,\]should be along the direction of velocity.
    (3) Both \[\overset{\to }{\mathop{\mathbf{B}}}\,\] and \[\overset{\to }{\mathop{\mathbf{E}}}\,\] are mutually perpendicular and perpendicular to the direction of velocity.
    (4) \[\overset{\to }{\mathop{\mathbf{B}}}\,\] should be along the direction of velocity and \[\overset{\to }{\mathop{\mathbf{E}}}\,\] should be perpendicular to the direction of velocity.
     Which one of the following pairs of statements is possible?

    A)  (1)and (3)          

    B)  (3) and (4)         

    C)  (2) and (3)         

    D)  (2) and (4)

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  • question_answer18) The binding energy per nucleon in deuterium and helium nuclei are 1.1 MeV and 7.0 MeV, respectively. When two deuterium nuclei fuse to form a helium nucleus the energy released in the fusion is

    A) 23.6 MeV

    B) 2.2 MeV

    C) 28.0 MeV

    D) 30.2 MeV

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  • question_answer19) The electron in the hydrogen atom jumps from excited state (n = 3) to its ground state (n = 1) and the photons thus emitted irradiate a photosensitive material. If the work function of the material is 5.1 eV, the stopping potential is estimated to be (the energy of the electron in nth state \[{{E}_{n}}=-\frac{13.6}{{{n}^{2}}}eV)\]

    A) 5.1 V

    B) 12.1 V

    C) 17.2 V

    D) 7 V

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  • question_answer20) If \[{{C}_{p}}\]and \[{{C}_{v}}\] denote the specific heats (per unit mass) of an ideal gas of molecular weight M where R is the molar gas constant.

    A) \[{{C}_{p}}-{{C}_{v}}=\frac{R}{{{M}^{2}}}\]

    B) \[{{C}_{p}}-{{C}_{v}}=R\]

    C) \[{{C}_{p}}-{{C}_{v}}=\frac{R}{M}\]

    D) \[{{C}_{p}}-{{C}_{v}}=MR\]

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  • question_answer21) A condenser of capacity C is charged to a potential difference of V1. The plates of the condenser are then connected to an ideal inductor of inductance L. The current through the inductor when the potential difference across the condenser reduces to V2 is

    A) \[{{\left( \frac{C{{({{V}_{1}}-{{V}_{2}})}^{2}}}{L} \right)}^{\frac{1}{2}}}\]

    B) \[\frac{C(V_{1}^{2}-V_{2}^{2})}{L}\]

    C) \[\frac{C(V_{1}^{2}+V_{2}^{2})}{L}\]

    D) \[{{\left( \frac{C(V_{1}^{2}+V_{2}^{2})}{L} \right)}^{\frac{1}{2}}}\]

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  • question_answer22) The dependence of acceleration due to gravity g on the distance r from the centre of the earth, assumed to be a sphere of radius R of uniform density is as shown in figures below

    (1)      (2)    (3)    (4)   
        The correct figure is                                                       

    A)  (4)                        

    B)  (1)                        

    C)  (2)                        

    D)  (3)

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  • question_answer23) The solid cylinder and a hollow cylinder, both of the same mass and same external diameter are released from the same height at the same time on a inclined plane. Both roll down without slipping. Which one will reach the bottom first?

    A) Both together only when angle of inclination of plane is\[45{}^\circ \]

    B) Both together

    C) Hollow cylinder

    D) Solid cylinder

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  • question_answer24) The thermo emf E in volt of a certain thermo-couple is found to vary with temperature difference \[\theta \] in\[{}^\circ C\] between the two junctions according to the relation \[E=30\,\theta -\frac{{{\theta }^{2}}}{15}\] The neutral temperature for the thermo-couple will be

    A) \[{{450}^{o}}C\]

    B) \[400{}^\circ C\]

    C) \[225{}^\circ C\]

    D) \[30{}^\circ C\]

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  • question_answer25)

    (1) Centre of gravity (CG) of a body is the point at which the weight of the body acts.
    (2) Centre of mass coincides with the centre of gravity if the earth is assumed to have infinitely large radius.
    (3) To evaluate the gravitational field intensity due to anybody at an external point, the entire mass of the body can be considered to be concentrated at its G.
    (4) The radius of gyration of anybody rotating about an axis is the length of the perpendicular dropped from the CG of the body to the axis.
    Which one of the following pairs of statements is correct?

    A)  (4) and (1)     

    B)  (1) and (2)         

    C)  (2) and (3)     

    D)  (3) and (4)

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  • question_answer26) The magnetic moment of a diamagnetic atom is

    A) much greater than one

    B) one

    C) between zero and one

    D) equal to zero

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  • question_answer27) Two identical bar magnets are fixed with their centres at a distance d apart. A stationary charge Q is placed at P in between the gap of the two magnets at a distance D from the centre O as shown in the figure The force on the charge Q is

    A) zero

    B) directed along OP

    C) directed along PO

    D) directed perpendicular to the plane of paper

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  • question_answer28) A particle of mass M starting from rest undergoes uniform acceleration. If the speed acquired in time T is v, the power delivered to the particle is

    A) \[\frac{M{{v}^{2}}}{T}\]

    B) \[\frac{1}{2}\frac{M{{v}^{2}}}{{{T}^{2}}}\]

    C) \[\frac{M{{v}^{2}}}{{{T}^{2}}}\]

    D) \[\frac{1}{2}\frac{M{{v}^{2}}}{T}\]

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  • question_answer29) A thin circular ring of mass M and radius r is rotating about its axis with constant angular velocity \[\omega .\]Two objects each of mass m are attached gently to the opposite ends of a diameter of the ring. The ring now rotates with angular velocity given by

    A) \[\frac{(M+2m)\omega }{2m}\]

    B) \[\frac{(M+2m)\omega }{2m}\]

    C) \[\frac{(M+2m)\omega }{M}\]

    D) \[\frac{M\omega }{M+2m}\]

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  • question_answer30) A monatomic gas at pressure p1 and V1 is compressed adiabatically to \[\frac{1}{8}\]th its original volume. What is the final pressure of the gas?

    A) \[64\,\,{{p}_{1}}\]

    B) \[{{p}_{1}}\]

    C) \[16\,\,{{p}_{1}}\]

    D) \[32\,\,{{p}_{1}}\]

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  • question_answer31) Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is

    A) \[Mg<Ca<Cl<P\]

    B) \[Cl<P<Mg<Ca\]

    C) \[P<Cl<Ca<Mg\]

    D) \[Ca<Mg<P<Cl\]

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  • question_answer32) The reaction, \[2A(g)+B(g)3C(g)+D(g)\] is begun with the concentrations of A and B both at an initial value of 1.00 M. When equilibrium is reached, the concentration of D is measured and found to be 0.25 M. The value for the equilibrium constant for this reaction is given by the expression

    A) \[[{{(0.75)}^{3}}(0.25)]\div [{{(1.00)}^{2}}(1.00)]\]

    B) \[[{{(0.75)}^{3}}(0.25)]\div [{{(0.50)}^{2}}(0.75)]\]

    C) \[[{{(0.75)}^{3}}(0.25)]\div [{{(0.50)}^{2}}(0.25)]\]

    D) \[[{{(0.75)}^{3}}(0.25)]\div [{{(0.75)}^{2}}(0.25)]\]

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  • question_answer33) Which of the following expressions correctly represents the equivalent conductance at infinite dilution of \[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}.\] Given that \[\Lambda {{_{Al}^{o}}^{3+}}\] and \[\Lambda _{SO_{4}^{2-}}^{o}\] are the equivalent conductance?s at infinite dilution of the respective ions?

    A) \[\text{2}{{\Lambda }^{\text{o}}}_{A{{l}^{3+}}}+3{{\Lambda }^{\text{o}}}_{so\frac{2-}{4}}\]

    B) \[{{\Lambda }^{\text{o}}}_{A{{l}^{3+}}}+{{\Lambda }^{\text{o}}}_{so\frac{2-}{4}}\]

    C) \[\text{(}{{\Lambda }^{\text{o}}}_{A{{l}^{3+}}}+3{{\Lambda }^{\text{o}}}_{so\frac{2-}{4}})\times 6\]

    D) \[\frac{1}{3}{{\Lambda }^{\text{o}}}_{A{{l}^{3+}}}+\frac{1}{2}{{\Lambda }^{\text{o}}}_{so\frac{2-}{4}}\]

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  • question_answer34) The pressure exerted by 6.0 g of methane gas in a \[0.03\,\,{{m}^{3}}\] vessel at \[129{}^\circ \text{ }C\] is (Atomic masses: \[C=12.01,H=1.01\,\]and\[R=8.314J{{K}^{-1}}\,mo{{l}^{-1}}\]

    A) 215216 Pa

    B) 13409 Pa

    C) 41648 Pa

    D) 31684 Pa

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  • question_answer35) Match List I (equations) with List II (types of process) and select the correct option.  

    List I (Equations) List II (Type of process)
    A. \[{{K}_{p}}>Q\] 1. Non-spontaneous
    B. \[\Delta {{G}^{o}}<RT\,\ln Q\] 2. Equilibrium
    C. \[{{K}_{p}}=Q\] 3. Spontaneous and endothermic
    D. \[T>\frac{\Delta H}{\Delta S}\] 4. Spontaneous
     

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

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

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

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

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  • question_answer36) Among the following four compounds

    A. Phenol
    B. Methyl phenol
    C. meta-nitrophenol
    D. para nitrophenol the acidity order is

    A) \[D>C>A>B\]

    B) \[C>D>A>B\]

    C) \[A>D>C>B\]

    D) \[B>A>C>D\]

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  • question_answer37) Among the following which one has the highest cation to anion size ratio?

    A) Csl

    B) CsF

    C) LiF

    D) NaF

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  • question_answer38) Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be

    A) infinite

    B) 3 J

    C) 9 J

    D) zero

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  • question_answer39) Which of the following species is not electrophonic in nature?

    A) \[\overset{\oplus }{\mathop{\text{Cl}}}\,\]

    B) \[\text{B}{{\text{H}}_{\text{3}}}\]

    C) \[{{\text{H}}_{\text{3}}}\overset{\oplus }{\mathop{\text{O}}}\,\]

    D) \[\overset{\oplus }{\mathop{\text{N}}}\,{{\text{O}}_{\text{2}}}\]

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  • question_answer40) A 0.66 kg ball is moving with a speed of 100 m/s. The associated wavelength will be \[(h=6.6\times {{10}^{-34}}Js)\]

    A) \[6.6\times {{10}^{-32}}m\]

    B) \[6.6\times {{10}^{-34}}m\]

    C) \[1.0\times {{10}^{-35}}m\]

    D) \[1.0\times {{10}^{-32}}m\]

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  • question_answer41) Consider the following relations for emf of a electrochemical cell

    [A] Emf of cell = (oxidation potential of anode) (reduction potential of cathode)
    [B] Emf of cell = (oxidation potential of anode) + (reduction potential of cathode)
    [C] Emf of cell = (reduction potential of anode) + (reduction potential of cathode)
    [D] Emf of cell = (oxidation potential of anode)-(0xidation potential of cathode)
    Which of the above relations are correct?

    A) [C] and [A]

    B) [A] and [B]

    C) [C] and [D]

    D) [B] and [D]

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  • question_answer42) In which of the following molecules the central atom does not have sp3 hybridisation?

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

    B) \[S{{F}_{4}}\]

    C) \[BF_{4}^{-}\]

    D) \[NH_{4}^{+}\]

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  • question_answer43) For vaporisation of water at 1 atm pressure, the values of \[\Delta H\]and \[\Delta S\] are40.63\[\text{kJ}\,\text{mo}{{\text{l}}^{\text{-1}}}\]and 108.8\[\text{J}{{\text{K}}^{\text{-1}}}\,\text{mo}{{\text{l}}^{\text{-1}}}\], respectively. The temperature when Gibbs energy change \[(\Delta G)\] for this transformation will be zero, is

    A) 273.4 K

    B) 393.4 K

    C) 373.4 K

    D) 293.4 K

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  • question_answer44) Match List I (substances) with List II (processes employed in the manufacture of the substances) and select the correct option.  

    List I (Substances) List II (Processes)
    A. Sulphuric acid 1. Haber’s process
    B. Steel 2. Bessemer’s process
    C. Sodium hydroxide 3. Leblanc process
    D. Ammonia 4. Contact process
       

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

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

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

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

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  • question_answer45) When glycerol is treated with excess of HI, it produces

    A) 2-iodopro'pane

    B) allyl iodide

    C) propene

    D) glycerol triiodide

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  • question_answer46) Some statements, about heavy water are given below

    [A] Heavy water is used as moderator in nuclear reactors;
    [B] Heavy water is more associated than ordinary water. 
    [C] Heavy water is more effective solvent than ordinary water.
    Which of the above statements are correct?      

    A)  A and B               

    B)  A, B and C          

    C)  B and C               

    D)  A and C

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  • question_answer47) The compound A on heating gives a colourless gas and a residue that is dissolved in water to obtain B. Excess of \[C{{O}_{2}}\] is bubbled through aqueous solution of B, C is formed which is recovered in the solid form. Solid C on gentle heating gives back A. The compound A is

    A) \[CaC{{O}_{3}}\]

    B) \[N{{a}_{2}}C{{O}_{3}}\]

    C) \[{{K}_{2}}C{{O}_{3}}\]

    D) \[CaS{{O}_{4}}\cdot 2{{H}_{2}}O\]

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  • question_answer48) Match the compounds given in List I with their characteristic reactions given in List II. Select the correct option.

    List I (Compounds) List II (Reactions)
    A. \[\text{C}{{\text{H}}_{\text{3}}}\text{C}{{\text{H}}_{\text{2}}}\text{C}{{\text{H}}_{\text{2}}}\]\[\text{C}{{\text{H}}_{\text{2}}}\text{N}{{\text{H}}_{\text{2}}}\] 1. Alkaline hydrolysis
    B. \[\text{C}{{\text{H}}_{3}}\text{C}\equiv \text{CH}\] 2. With KOH (alcohol)  And \[\text{CHC}{{\text{l}}_{\text{3}}}\]produces bad smell
    C.  \[\text{C}{{\text{H}}_{\text{3}}}\text{C}{{\text{H}}_{\text{2}}}\text{COOC}{{\text{H}}_{\text{3}}}\] 3. Gives white ppt with ammoniacal \[\text{AgN}{{\text{O}}_{\text{3}}}\]
    D. \[\text{C}{{\text{H}}_{\text{3}}}\text{CH(OH)C}{{\text{H}}_{\text{3}}}\] 4. With Lucas reagent cloudiness appears after 5 min

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

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

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

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

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  • question_answer49) Which one of the following compounds will be most readily dehydrated?

    A)

    B)

    C)

    D)

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  • question_answer50) The rate of the reaction,\[2NO+C{{l}_{2}}\xrightarrow[{}]{{}}2NOCl\]is given by the rate equation, rate\[=k{{[NO]}^{2}}[C{{l}_{2}}]\]The value of the rate constant can be increased by

    A) increasing the temperature

    B) increasing the concentration of NO

    C) increasing the concentration of the \[C{{l}_{2}}\] doing

    D) all of the above

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  • question_answer51) Which one of the following complexes is not expected to exhibit isomerism?

    A) \[{{[Ni{{(N{{H}_{3}})}_{4}}{{({{H}_{2}}O)}_{2}}]}^{2+}}\]

    B) \[[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]

    C) \[[Ni{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]

    D) \[{{[Ni{{(en)}_{3}}]}^{2+}}\]

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  • question_answer52) Which/of the following conformers for ethylene glycol is most stable?

    A)

    B)

    C)

    D)

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  • question_answer53) The IUPAC name of the compound \[C{{H}_{3}}CH=CHC\equiv CH\]

    A) pent-4-yn-2-ene

    B) pent-3-en-1-yne

    C) pent-2-en-4-yne

    D) pent-1-yn-3-ene

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  • question_answer54) Which of the following oxidation states is the most common among the lanthanides?

    A) 4

    B) 2

    C) 5

    D) 3

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  • question_answer55) How many bridging oxygen atoms are present in\[{{\text{P}}_{\text{4}}}{{\text{O}}_{\text{10}}}\]?

    A) 6

    B) 4

    C) 2

    D) 5

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  • question_answer56) Some of the properties of the two species, \[\text{NO}_{\text{3}}^{\text{-}}\]and \[{{\text{H}}_{\text{3}}}\text{O}_{{}}^{+}\] are described below. Which one of them is correct?

    A) Dissimilar in hybridisation for the central atom with different structures

    B) Isostructural with same hybridisation for the central atom

    C) Isostructural with different hybridization for the central atom

    D) Similar in hybridisation for the central atom with different structures

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  • question_answer57) The following two reactions are known \[F{{e}_{2}}{{O}_{3}}(s)+3CO(g)\xrightarrow[{}]{{}}2Fe(s)+3C{{O}_{2}}(g);\] \[\Delta H=-26.8\,kJ\] \[FeO(s)+CO(g)\xrightarrow[{}]{{}}Fe(s)+C{{O}_{2}}(g);\] \[\Delta H=-16.5\,kJ\] The value of \[\Delta H\]for the following reaction \[F{{e}_{2}}{{O}_{3}}(s)+CO(g)\xrightarrow[{}]{{}}2FeO(s)+C{{O}_{2}}(g)\]

    A) + 10.3 kJ

    B) - 43.3 Kj

    C) - 10.3 kJ

    D) + 6.2 kJ

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  • question_answer58) Following compounds are given A.\[\text{C}{{\text{H}}_{\text{3}}}\text{C}{{\text{H}}_{\text{2}}}\text{OH}\] B.\[\text{C}{{\text{H}}_{\text{3}}}\text{COC}{{\text{H}}_{\text{3}}}\] C.\[\text{C}{{\text{H}}_{\text{3}}}-\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ } \\ \text{C}{{\text{H}}_{\text{3}}} \end{smallmatrix}}{\mathop{\text{C}}}\,\text{HOH}\] D\[\text{C}{{\text{H}}_{\text{3}}}\text{OH}\] Which of the above compound (s), on being warmed with iodine solution and NaOH, will give iodoform?

    A) A, C and D

    B) Only B

    C) A, B and C

    D) A and B

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  • question_answer59) Fructose reduces Tollen's reagent due to

    A) asymmetric carbons

    B) primary alcoholic group

    C) secondary alcoholic group

    D) enolisation of fructose followed by conversion to aldehyde by base

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  • question_answer60) In       the       following       reaction\[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\text{C}{{\text{H}}_{\text{2}}}\text{Br}\frac{\text{1}\text{.Mg,}\,\text{Ether}}{\text{2}\text{.}{{\text{H}}_{\text{3}}}{{\text{O}}^{\text{+}}}}\text{X,}\]the product 'X is      

    A) \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\text{C}{{\text{H}}_{\text{2}}}\text{OC}{{\text{H}}_{\text{2}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\]

    B) \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\text{C}{{\text{H}}_{\text{2}}}\text{OH}\]

    C) \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\text{C}{{\text{H}}_{3}}\]                             

    D) \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\text{C}{{\text{H}}_{\text{2}}}\text{C}{{\text{H}}_{\text{2}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\]

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  • question_answer61) Which one of the following pairs of structures is correctly matched   with   their   correct description?                     

    A)

    Structure Description
    Tibia and fibula Both form parts of knee joint

    B)

    Structure Description
    Cartilage and cornea No blood supply but do require oxygen for respiratory need

    C)

    Structure Description
    Shoulder joint and elbow joint Ball and socket type of joint

    D)

    Structure Description
    Premolars and molars 20 n all and 3 rooted

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  • question_answer62) Identify the components labelled A, B, C and D in the diagram below from the list 1 to 8 given along with

    1. Cristae of mitochondria
    2. Inner membrane of mitochondria
    3. Cytoplasm,
    4. Smooth endoplasmic reticulum
    5. Rough endoplasmic reticulum
    6. Mitochondrial matrix
    7. Cell vacuole
    8. Nucleus

    A) A-5 B-4 C-8 D-9

    B) A-1 B-4 C-8 D-6

    C) A-6 B-5 C-4 D-7

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

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  • question_answer63) Fastest distribution of some ingestible material/medicine and with no risk of any kind can be achieved by injecting it into the

    A) muscles

    B) arteries

    C) veins

    D) lymph vessels

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  • question_answer64) Which one of the following Statements about the particular entity is true?

    A) Centromere is found in animal cells which produces aster during cell division

    B) The gene for producing insulin is present in every body cell

    C) Nucleosome is formed of nucleotides

    D) DNA consists of a core of eight histones

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  • question_answer65) Study the pedigree chart of a certain family given below and select the correct conclusion which can be drawn for the character.

    A) The female parent is heterozygous

    B) The parents could not have had a normal daughter for this character

    C) The trait under study could not be colour blindness

    D) The male parent is homozygous dominant

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  • question_answer66) Leguminous plants are able to fix atmospheric nitrogen through the process of symbiotic nitrogen fixation. Which one of the following statement is not correct during the process of nitrogen fixation?

    A) Leghaemoglobin scavenges oxygen and is pinkish in colour

    B) Nodules act as a site for nitrogen fixation

    C) The enzyme nitrogenase catalyses the conversion of atmospheric \[{{N}_{2}}\]to \[N{{H}_{3}}\]

    D) Nitrogenase is insensitive to oxygen

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  • question_answer67) Which one of the following is a xerophytic plant in which the stem is modified into the flat green and succulent structure?

    A) Opuntia

    B) Casuarina

    C) Hydrilla

    D) Acacia

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  • question_answer68) The figure given below shows the conversion of a substrate into product by an enzyme. In which one of the four options (a-d), the components of reaction labelled as A, B, C and D are identified correctly?

    A)

    A B C D
    Potential energy Transition state Activation energy with enzyme Activation energy without enzyme

    B)

    A B C D
    Transition energy Potential energy Activation energy without enzyme Activation energy with enzyme

    C)

    A B C D
    Potential energy Transition state Activation energy with enzyme Activation energy without enzyme

    D)

    A B C D
    Activation energy with enzyme Transition state Activation energy without enzyme Potential energy

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  • question_answer69) Which of the following is used in gene cloning?

    A) Nucleoids

    B) Lomasomes

    C) Mesosomes

    D) Plasmids

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  • question_answer70) When domestic sewage mixes with river water small animals like rats will die after

    A) drinking river water

    B) the increased microbial activity releases micronutrients such as iron

    C) the increased microbial activity uses up dissolved oxygen

    D) the river water is still suitable for drinking as impurities are only about 0.1%

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  • question_answer71) Given below are four statements (A - D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements.

    [a] Wings of butterfly and birds look alike and are the results of --(i)-- evolution.
    [b] Miller showed that\[C{{H}_{4}},{{H}_{2}},N{{H}_{3}}\] and --(i)--, when exposed to electric discharge in a flask resulted information of --(ii)--.
    [c] Vermiform appendix is a --(i)--organ and an--(ii)-- evidence of evolution.
    [d] According to Darwin evolution took place due to --(i)--and --(ii)--of the fittest.

    A)  [D]-(i) small variations, (ii) survival, [A]-(i) convergent,

    B)  [A]-(i) convergent, [B]-(i) oxygen, (ii) nucleosides

    C)  [B]-(i) water vapour, (ii) amino acids [C]-(i) rudimentary, (ii) anatomical

    D)  [C]-(i) vestigial, (ii) anatomical [D]-(i) mutations, (ii) multiplication

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  • question_answer72) Aestivation of petals in the flower of cotton is correctly shown in

    A)

    B)

    C)

    D)

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  • question_answer73) In which one of the following organism, its excretory organs are correctly stated?

    A) Humans - Kidneys, sebaceous glands and tear glands

    B) Earthworm - Pharyngeal, integumentary and septal nephridia

    C) Cockroach - Malpighian tubules and enteric caeca

    D) Frog - Kidneys, skin and buccal epithelium

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  • question_answer74) Examine the figures A, B, C and D. In which one of the four options, all the items A, B, C and D are correct?         

      [A]    [B]          [C]       [D]  
                                      

    A)

    A B C D
    Chara Marchantia Fucus Fucus Pinus

    B)

    A B C D
    Equisetum Ginkgo Selaginella Lycopodium

    C)

    A B C D
    Selaginella Equisetum Salvinia Ginkgo

    D)

    A B C D
    Funaria Adiantum Salvinia Riccia

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  • question_answer75) The most apparent change during the evolutionary history of Homo sapiens is traced in

    A) loss of body hair

    B) walking upright

    C) shortening of the jaws

    D) remarkable increase in the brain size

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  • question_answer76) Which one of the following is now being commercially produced by biotechnological procedures?

    A) Nicotine

    B) Morphine

    C) Quinine

    D) Insulin

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  • question_answer77) The correct floral formula of soybean is

    A) % \[{{K}_{(5)}}{{C}_{1+(2)+2}}{{A}_{(9)+1}}{{G}_{\overline{1}}}\]

    B) % \[{{K}_{(5)}}{{C}_{1+(2)+2}}{{A}_{(9)+1}}{{G}_{\underline{1}}}\]

    C) % \[{{K}_{(5)}}{{C}_{1+(2)+2}}{{A}_{(9)+1}}{{G}_{\underline{1}}}\]

    D) %\[{{K}_{(5)}}{{C}_{1+2+(2)}}{{A}_{(9)+1}}{{G}_{\underline{1}}}\]

    View Answer play_arrow
  • question_answer78) If for some reason the parietal cells of the gut epithelium become partially non-functional, what is likely to happen ?

    A) The pancreatic enzymes and specially the trypsin and lipase will not work efficiently

    B) The pH of stomach will fall abruptly

    C) Steapsin will be more effective

    D) Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones

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  • question_answer79) Which one of the following is most appropriately defined?

    A) Host is an organism, which provides food to another organism

    B) Amensalism is a relationship in which one species is benefited whereas the other is unaffected

    C) Predator is an organism that catches and kills other organism for food

    D) Parasite is an organism, which always lives inside the body of other organism and may kill it,

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  • question_answer80) Read the following four statements. A, B, C and D and select die right option having both correct statements.

    A. Z secheme of light reaction takes place in presence of PS-I only.
    B. Only PS-I is functional in cyclic photophosphorylation.
    C. Cyclic photophosphorylation results into synthesis of ATP and \[NADP{{H}_{2}}.\]
    D. Stroma lamellae lack PS-II as well as NADP.

    A)  B and D               

    B)  A and B               

    C)  B and C               

    D)  C and D

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  • question_answer81) Which one of the following techniques is safest for the detection of cancer?

    A) Magnetic Resonance Imaging (MRI)

    B) Radiography (X-ray)

    C) Computed Tomography (CT)

    D) Histopathological Studies

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  • question_answer82) Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release of

    A) oestrogen from placenta

    B) oxytocin from maternal pituitary

    C) oxytocin from foetal pituitary

    D) relaxin from placenta

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  • question_answer83) Select the correct matching of a hormone its source and function.

    A)

    Hormone Source Function
    Vasopressin Posterior pituitary Increases loss of water through urine

    B)

    Hormone Source Function
    Norepinephrine Adrenal medulla Increases heartbeat, rate of respiration and alertness

    C)

    Hormone Source Function
    Glucagon Beta-cells of Islets of Langerhans Stimulates glycogenolysis

    D)

    Hormone Source Function
    Prolactin Posterior pituitary Regulates growth of mammary glands and milk formation in females

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  • question_answer84) In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the

    A) ribosomes

    B) nucleus

    C) dictyosomes

    D) ER

    View Answer play_arrow
  • question_answer85) Given below are four statements (A-D) regarding human blood circulatory system

    [a] Arteries are thick-walled and have narrow lumen as compared to veins.
    [b] Angina is acute chest pain when the blood circulation to the brain is reduced.
    [c] Persons with blood group-AB can donate blood to any person with any blood group under ABO system.
    [d] Calcium ions play a very important role in blood clotting.
    Which two of the above statements are correct?

    A) A and D

    B) A and B

    C) B and C

    D) C and D

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  • question_answer86) In human female, the blastocyst

    A) forms placenta even before implantation

    B) gets implanted into uterus three days after ovulation

    C) gets nutrition from uterine endometrial secretion only after implantation

    D) gets implanted in endometrium by the trophoblast cells

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  • question_answer87) The haemoglobin content per 100 mL of blood of a normal healthy human adult is

    A) 5-11 g

    B) 25-30 g

    C) 17-20g

    D) 12-16 g

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  • question_answer88) An example of endomycorrhiza is

    A) Nostoc

    B) Giomus

    C) Agaricus

    D) Khizobium

    View Answer play_arrow
  • question_answer89) One of the commonly used plant growth hormone in tea plantations is

    A) ethylene

    B) abscissic acid

    C) zeatin

    D) indole-3-acetic acid

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  • question_answer90) Study the cycle shown below and select the option which gives correct words for all the four blanks A, B, C and D.

    A)

    A B C D
    Nitrification Ammonifica tion Animals Plants

    B)

    A B C D
    Denitrification Ammonification Plansts Animals

    C)

    A B C D
    Nitrification Denitrification Animals Plants

    D)

    A B C D
    Denitrification Nitrification Plants Animals

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  • question_answer91) Jaundice is a disorder of

    A) excretory system

    B) skin and eyes

    C) digestive system

    D) circulatory system

    View Answer play_arrow
  • question_answer92) Kranz anatomy is one of the characteristics of the leaves of

    A) potato

    B) wheat

    C) sugarcane

    D) mustard

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  • question_answer93) In Antirrhinum, two plants with pink flowers were hybridized. The Pi plants "produced red, pink and white flowers in the proportion of 1 red, 2 pink and 1 white. What could be the genotype of the two plants used for hybridization? Red flower colour is determined by RR, and white by rr genes.

    A) rrrr

    B) RR

    C) Rr

    D) rr

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  • question_answer94) Transport of food material in higher plants takes place through

    A) companion cells

    B) transfusion tissue

    C) tracheids

    D) sieve elements

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  • question_answer95) Which one of the following is monoecious?

    A) Marchantia

    B) Cycas

    C) Finns

    D) Date palm

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  • question_answer96) A cross in which an organism showing a dominant phenotype is crossed with the recessive parent in order to know its genotype is called

    A) monohybrid cross

    B) back cross

    C) test cross

    D) dihybrid cross

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  • question_answer97) The Indian rhinoceros is a natural inhabitant of which one of the Indian states?

    A) Uttarakhand

    B) Uttar Pradesh

    C) Himachal Pradesh

    D) Assam

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  • question_answer98) Study the pathway given below In which of the following options, correct words for all the three blanks A, B and C are indicated?

    A)

    A B C
    Decarboxylation Reduction Regeneration

    B)

    A B C
    Fixation Transamination Regeneration

    C)

    A B C
    Fixation Decarboxylation Regeneration

    D)

    A B C
    Carboxylation Decarboxylation Reduction

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  • question_answer99) Black (stem) rust of wheat is caused by

    A) AIternaria solani

    B) Ustilago nuda

    C) Puccinia graminis

    D) Xanthomonas oryzae

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  • question_answer100) Secretions from which one of the following are rich in fructose, calcium and some enzymes?

    A) Male accessory glands

    B) Liver

    C) Pancreas

    D) Salivary glands

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  • question_answer101) A person suffering from a disease caused by Piosmodium, experiences recurring chill and fever at the time when the

    A) sporozoites released from RBCs are being rapidly killed and broken down inside spleen

    B) trophozoites reach maximum growth and give out certain toxins

    C) parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs

    D) microgametcytes and megagametocytes are being destroyed by the WBCs

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  • question_answer102) ABO blood grouping is controlled by gene I, which has three alleles and show codominance. There are six genotypes. How many phenotypes in all are possible?

    A) Six

    B) Three

    C) Four

    D) Five

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  • question_answer103) Three of the following statements about enzymes are correct and one is wrong. Which one is wrong?

    A) Enzymes require optimum pH for maximal activity

    B) Enzymes are denatured at high temperature but in certain exceptional organisms they are effective even at temperatures \[80{}^\circ -90{}^\circ C\]

    C) Enzymes are highly specific

    D) Most enzymes are proteins but some are lipids

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  • question_answer104) An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called

    A) thylakoid

    B) endoplasmic reticulum

    C) plasmalemma

    D) cytoskeleton

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  • question_answer105) Examine the figures (A-D) given below and select the right option out of a-d, in which all the four structures A, B, C and D are identified correctly.

    A)

    A B C D
    Rhizome Sporangiophore Polar cell Clobule

    B)

    A B C D
    Runner Archegon ophore Synergid Antheridium

    C)

    A B C D
    Offset Antherdidi ophore Antipodals Oogonium

    D)

    A B C D
    Sucker Seta Megaspore mother cell Gemma cup

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  • question_answer106) Root development is promoted by

    A) abscisic acid

    B) auxin

    C) gibberellin

    D) ethylene

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  • question_answer107) Consider the following four statements A, B, C and D and select the right option for two correct statements.

     [a] In vexillary aestivation, the large posterior petal is called-standard, two lateral ones are wings arid two small anterior petals are termed keel. 
     [b] The floral formula for Liliaceae is
     [c] In pea flower, the stamens are monadelphous.
     [d] The floral formula for Solanaceae is
     

    A)  A and C                               

    B)  A and B                 

    C)  B and C                      

    D)  C and D

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  • question_answer108) Given below is the diagram of a bacteriophage. In which one of the options, all the four parts A, B, C and D are correct?

    A)

    A B C D
    Tail fibres Head Sheath Collar

    B)

    A B C D
    Sheath Collar Head Tail fibres

    C)

    A B C D
    Head Collar Sheath Tail fibres

    D)

    A B C D
    Collar Tail fibres Head Sheath

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  • question_answer109) In genetic engineering, a DNA- segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents. (A-D) in this regard and select the correct option about which one or more of these can be used as a vector/vectors.

    [a] A bacterium
    [b] Plasmid
    [c] Plasmodium
    [d] Bacteriophage

    A) A, B and D only

    B) A only

    C) A and C only

    D) B and D only

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  • question_answer110) Which one of the following cannot be used for preparation of vaccines against plague?

    A) Formalin-inactivated suspensions of virulent bacteria

    B) Avirulent live bacteria

    C) Synthetic capsular polysaccharide material

    D) Heat-killed suspensions of virulent bacteria

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  • question_answer111) The fruit fly, Drosophila melanogaster was found to be very suitable for experimental verification of -chromosomal theory of inheritance by Morgan and his colleagues because

    A) it reproduces parthenogenetically:

    B) a single mating produces two young flies

    C) smaller female is easily recognisable from larger male

    D) it completes life cycle in about two weeks

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  • question_answer112) The lac operon consists of

    A) four regulatory genes only

    B) one regulatory gene and three structural genes

    C) two regulatory genes and two structural genes

    D) three regulatory genes and three structural genes

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  • question_answer113) Crocodile and penguin are similar to whale and dogfish in which one of the following features?

    A) possess a solid single-stranded central nervous system

    B) lay eggs and guard them till they hatch

    C) possess bony skeleton

    D) have gill slits at some stage

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  • question_answer114) Select the answer with correct matching of the structure, its location and function.

    A)

    Structure Location Function
    Eustachian tube Anterior part of internal ear Equalizes air pressure on either sides of tympanic membrane

    B)

    Structure Location Function
    Cerebellum Mid brain Controls respiration and gastric secrietions

    C)

    Structure Location Function
    Hypothalamus Forebrain Controls body temperature, urge for eating and drinking

    D)

    Structure Location Function
    Blind spot Near the place where opt nerve leaves eye Rods and cones are present but inactive here

    View Answer play_arrow
  • question_answer115) Select the correct combination of the statements (A-D) regarding the characteristics of certain organisms.

    [a] Methanogens are Archaebacteria, which produce methane in marshy areas.
    [b] Nostoc is a filamentous blue-green algae, which fixes atmospheric nitrogen.
    [c] Chemosynthetic-, .autotrophic bacteria synthesize cellulose from glucose.
    [d] Mycoplasma lack a cell wall and can survive without oxygen.

    A) B, C

    B) A, B, C

    C) B, C, D

    D) A, B, D

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  • question_answer116) Which one of the following is the correct description of a certain part of a normal human skeleton?

    A) Parietal bone and the temporal bone of the skull are joined by fibrous joint

    B) First vertebra is axis, which articulates with the occipital condyles

    C) The 9th and 10th pairs of ribs are called the floating ribs

    D) Glenoid cavity is a depression to which the thigh bone articulates

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  • question_answer117) Vegetative propagation in Piscia occurs by

    A) stolen

    B) offset

    C) runner

    D) sucker

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  • question_answer118) Given I below is the diagram of a stomatal apparatus. In which of the following, all the four parts labelled as A, B, C and D are correctly identified?

    A)

    A B C D
    Subsidiary cell Epidermal cell Guard cell Stomata aperture

    B)

    A B C D
    Guard cell Stomatal aperature Subsidiary cell Epidermal cell

    C)

    A B C D
    Epidermal cell Guard cell Stomatal aperture Subsidiary cell

    D)

    A B C D
    Epidermal cell Subsidiary cell Guard cell Stomatal aperture

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  • question_answer119) Which of the following representations shows the pyramid of numbers in a forest ecosystem?

    A) D

    B) A

    C) B

    D) C

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  • question_answer120) The 3 '-5' phosphodiester linkages inside a polynucleotide chain serve to join

    A) one DNA strand with the other DNA strand

    B) one nucleoside with another nucleoside

    C) one nucleotide with another nucleotide

    D) one nitrogenous base .with pentose sugar

    View Answer play_arrow

   

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