Solved papers for NEET AIPMT SOLVED PAPER MAINS 2010

done AIPMT SOLVED PAPER MAINS 2010 Total Questions - 120

• 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)
  \[\frac{{{\mu }_{0}}i}{2\sqrt{2}R}\]         
  done clear
  B)
  \[\frac{{{\mu }_{0}}i}{2R}\]                         
  done clear
  C)
  \[\frac{{{\mu }_{0}}i}{4R}\]                         
  done clear
  D)
  \[\frac{{{\mu }_{0}}i}{\sqrt{2}R}\]
  done clear
  View Answer play_arrow

• 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           
  done clear
  B)
   OR gate              
  done clear
  C)
   AND gate           
  done clear
  D)
   NAND gate
  done clear
  View Answer play_arrow

• 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   
  done clear
  B)
   increase
  done clear
  C)
   decrease                           
  done clear
  D)
   remain same
  done clear
  View Answer play_arrow

• 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                     
  done clear
  B)
   E                            
  done clear
  C)
   \[\frac{E}{2}\]                  
  done clear
  D)
  \[\frac{E}{3}\]
  done clear
  View Answer play_arrow

• 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)
  \[{{e}_{2}}-{{e}_{1}}\]   
  done clear
  B)
  \[{{e}_{1}}+2{{e}_{2}}\]
  done clear
  C)
  \[{{e}_{1}}+{{e}_{2}}\]  
  done clear
  D)
  \[{{e}_{1}}-2{{e}_{2}}\]
  done clear
  View Answer play_arrow

• 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            
  done clear
  B)
   2N and T            
  done clear
  C)
   2N and 2T          
  done clear
  D)
   N and T
  done clear
  View Answer play_arrow

• 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)    
  done clear
  B)
  (1) and (2)         
  done clear
  C)
  (2) and (3)    
  done clear
  D)
  (1) and (3)
  done clear
  View Answer play_arrow

• 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 \[{{\sin }^{-1}}\left( \frac{2}{3} \right)\]
  done clear
  B)
  equal to or less than \[{{\sin }^{-1}}\left( \frac{3}{5} \right)\]
  done clear
  C)
  equal to or greater than \[{{\sin }^{-1}}\left( \frac{3}{4} \right)\]
  done clear
  D)
   less than \[{{\sin }^{-1}}\left( \frac{2}{3} \right)\]
  done clear
  View Answer play_arrow

• 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                     
  done clear
  B)
   \[{{30}^{o}}\]                   
  done clear
  C)
   \[{{45}^{o}}\]                   
  done clear
  D)
   \[{{60}^{o}}\]
  done clear
  View Answer play_arrow

• 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)     
  done clear
  B)
   (1) and (2)         
  done clear
  C)
   (2) and (3)     
  done clear
  D)
   (3) and (4)
  done clear
  View Answer play_arrow

• 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)
  \[GmM\left( \frac{1}{R_{1}^{2}}-\frac{1}{R_{2}^{2}} \right)\]     
  done clear
  B)
  \[GmM\left( \frac{1}{R_{1}^{{}}}-\frac{1}{R_{2}^{{}}} \right)\]
  done clear
  C)
  \[2GmM\left( \frac{1}{R_{1}^{{}}}-\frac{1}{R_{2}^{{}}} \right)\]
  done clear
  D)
  \[\frac{1}{2}GmM\left( \frac{1}{R_{1}^{{}}}-\frac{1}{R_{2}^{{}}} \right)\]
  done clear
  View Answer play_arrow

• question_answer12) The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is                           
  A)
   \[{{60}^{o}}\]
  done clear
  B)
   \[{{15}^{o}}\]                   
  done clear
  C)
   \[{{30}^{o}}\]                   
  done clear
  D)
   \[{{45}^{o}}\]                      
  done clear
  View Answer play_arrow

• 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)
  \[\frac{40}{9}M{{R}^{2}}\]          
  done clear
  B)
  \[M{{R}^{2}}\]  
  done clear
  C)
  \[4M{{R}^{2}}\]
  done clear
  D)
  \[\frac{4}{9}M{{R}^{2}}\]
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   a circular path
  done clear
  C)
   a parabolic path
  done clear
  D)
   a straight line path inclined equally to x and y-axes
  done clear
  View Answer play_arrow

• 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)
  \[3\times {{10}^{-3}}N-m\]         
  done clear
  B)
  \[1.5\times {{10}^{-3}}N-m\]
  done clear
  C)
  \[1.5\times {{10}^{-2}}N-m\]     
  done clear
  D)
  \[3\times {{10}^{-2}}N-m\]
  done clear
  View Answer play_arrow

• 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)
   \[{{A}_{1}}{{t}_{1}}-{{A}_{2}}{{t}_{2}}\]
  done clear
  B)
   \[{{A}_{1}}-{{A}_{2}}\] 
  done clear
  C)
   \[\frac{({{A}_{1}}-{{A}_{2}})}{\lambda }\]           
  done clear
  D)
   \[\lambda ({{A}_{1}}-{{A}_{2}})\]
  done clear
  View Answer play_arrow

• 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)          
  done clear
  B)
   (3) and (4)         
  done clear
  C)
   (2) and (3)         
  done clear
  D)
   (2) and (4)
  done clear
  View Answer play_arrow

• 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     
  done clear
  B)
   2.2 MeV             
  done clear
  C)
   28.0 MeV           
  done clear
  D)
   30.2 MeV
  done clear
  View Answer play_arrow

• 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                    
  done clear
  B)
   12.1 V  
  done clear
  C)
   17.2 V                  
  done clear
  D)
   7 V
  done clear
  View Answer play_arrow

• 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)
  \[{{C}_{p}}-{{C}_{v}}=\frac{R}{{{M}^{2}}}\]         
  done clear
  B)
  \[{{C}_{p}}-{{C}_{v}}=R\]
  done clear
  C)
  \[{{C}_{p}}-{{C}_{v}}=\frac{R}{M}\]        
  done clear
  D)
  \[{{C}_{p}}-{{C}_{v}}=MR\]
  done clear
  View Answer play_arrow

• 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)
  \[{{\left( \frac{C{{({{V}_{1}}-{{V}_{2}})}^{2}}}{L} \right)}^{\frac{1}{2}}}\]
  done clear
  B)
  \[\frac{C(V_{1}^{2}-V_{2}^{2})}{L}\]
  done clear
  C)
  \[\frac{C(V_{1}^{2}+V_{2}^{2})}{L}\]                     
  done clear
  D)
  \[{{\left( \frac{C(V_{1}^{2}+V_{2}^{2})}{L} \right)}^{\frac{1}{2}}}\]
  done clear
  View Answer play_arrow

• 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)                        
  done clear
  B)
   (1)                        
  done clear
  C)
   (2)                        
  done clear
  D)
   (3)
  done clear
  View Answer play_arrow

• 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\[45{}^\circ \]
  done clear
  B)
   Both together
  done clear
  C)
   Hollow cylinder
  done clear
  D)
   Solid cylinder
  done clear
  View Answer play_arrow

• 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)
   \[{{450}^{o}}C\]
  done clear
  B)
   \[400{}^\circ C\]
  done clear
  C)
   \[225{}^\circ C\]
  done clear
  D)
   \[30{}^\circ C\]
  done clear
  View Answer play_arrow

• 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)     
  done clear
  B)
   (1) and (2)         
  done clear
  C)
   (2) and (3)     
  done clear
  D)
   (3) and (4)
  done clear
  View Answer play_arrow

• question_answer26) The magnetic moment of a diamagnetic atom is               
  A)
   much greater than one
  done clear
  B)
   one
  done clear
  C)
   between zero and one
  done clear
  D)
   equal to zero
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   directed along OP
  done clear
  C)
   directed along PO
  done clear
  D)
   directed perpendicular to the plane of paper
  done clear
  View Answer play_arrow

• 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)
  \[\frac{M{{v}^{2}}}{T}\]
  done clear
  B)
  \[\frac{1}{2}\frac{M{{v}^{2}}}{{{T}^{2}}}\]           
  done clear
  C)
  \[\frac{M{{v}^{2}}}{{{T}^{2}}}\]
  done clear
  D)
  \[\frac{1}{2}\frac{M{{v}^{2}}}{T}\]
  done clear
  View Answer play_arrow

• 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)
  \[\frac{(M+2m)\omega }{2m}\]
  done clear
  B)
  \[\frac{(M+2m)\omega }{2m}\]
  done clear
  C)
  \[\frac{(M+2m)\omega }{M}\] 
  done clear
  D)
  \[\frac{M\omega }{M+2m}\]
  done clear
  View Answer play_arrow

• 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)
   \[64\,\,{{p}_{1}}\]                          
  done clear
  B)
   \[{{p}_{1}}\]                                
  done clear
  C)
   \[16\,\,{{p}_{1}}\]                          
  done clear
  D)
   \[32\,\,{{p}_{1}}\]
  done clear
  View Answer play_arrow

• question_answer31) Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is      
  A)
  \[Mg<Ca<Cl<P\]              
  done clear
  B)
  \[Cl<P<Mg<Ca\]
  done clear
  C)
  \[P<Cl<Ca<Mg\]              
  done clear
  D)
  \[Ca<Mg<P<Cl\]
  done clear
  View Answer play_arrow

• 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)
  \[[{{(0.75)}^{3}}(0.25)]\div [{{(1.00)}^{2}}(1.00)]\]
  done clear
  B)
  \[[{{(0.75)}^{3}}(0.25)]\div [{{(0.50)}^{2}}(0.75)]\]
  done clear
  C)
  \[[{{(0.75)}^{3}}(0.25)]\div [{{(0.50)}^{2}}(0.25)]\]
  done clear
  D)
  \[[{{(0.75)}^{3}}(0.25)]\div [{{(0.75)}^{2}}(0.25)]\]
  done clear
  View Answer play_arrow

• 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)
  \[\text{2}{{\Lambda }^{\text{o}}}_{A{{l}^{3+}}}+3{{\Lambda }^{\text{o}}}_{so\frac{2-}{4}}\]      
  done clear
  B)
   \[{{\Lambda }^{\text{o}}}_{A{{l}^{3+}}}+{{\Lambda }^{\text{o}}}_{so\frac{2-}{4}}\]
  done clear
  C)
   \[\text{(}{{\Lambda }^{\text{o}}}_{A{{l}^{3+}}}+3{{\Lambda }^{\text{o}}}_{so\frac{2-}{4}})\times 6\]   
  done clear
  D)
   \[\frac{1}{3}{{\Lambda }^{\text{o}}}_{A{{l}^{3+}}}+\frac{1}{2}{{\Lambda }^{\text{o}}}_{so\frac{2-}{4}}\]
  done clear
  View Answer play_arrow

• 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          
  done clear
  B)
   13409 Pa            
  done clear
  C)
   41648 Pa            
  done clear
  D)
   31684 Pa
  done clear
  View Answer play_arrow

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

• question_answer36) Among the following four compounds

  A. Phenol

  B. Methyl phenol

  C. meta-nitrophenol

  D. para nitrophenol the acidity order is

  A)
   \[D>C>A>B\]   
  done clear
  B)
  \[C>D>A>B\]
  done clear
  C)
  \[A>D>C>B\]    
  done clear
  D)
  \[B>A>C>D\]
  done clear
  View Answer play_arrow

• question_answer37) Among the following which one has the highest cation to anion size ratio?                          
  A)
   Csl                        
  done clear
  B)
   CsF                       
  done clear
  C)
   LiF                         
  done clear
  D)
   NaF
  done clear
  View Answer play_arrow

• question_answer38) Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be
  A)
   infinite                
  done clear
  B)
   3 J                         
  done clear
  C)
   9 J                         
  done clear
  D)
   zero
  done clear
  View Answer play_arrow

• question_answer39) Which of the following species is not electrophonic in nature?
  A)
  \[\overset{\oplus }{\mathop{\text{Cl}}}\,\]                       
  done clear
  B)
  \[\text{B}{{\text{H}}_{\text{3}}}\]                          
  done clear
  C)
  \[{{\text{H}}_{\text{3}}}\overset{\oplus }{\mathop{\text{O}}}\,\]                          
  done clear
  D)
  \[\overset{\oplus }{\mathop{\text{N}}}\,{{\text{O}}_{\text{2}}}\]
  done clear
  View Answer play_arrow

• 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)
  \[6.6\times {{10}^{-32}}m\]        
  done clear
  B)
  \[6.6\times {{10}^{-34}}m\]        
  done clear
  C)
  \[1.0\times {{10}^{-35}}m\]        
  done clear
  D)
  \[1.0\times {{10}^{-32}}m\]
  done clear
  View Answer play_arrow

• 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]        
  done clear
  B)
   [A] and [B]        
  done clear
  C)
   [C] and [D]        
  done clear
  D)
   [B] and [D]
  done clear
  View Answer play_arrow

• question_answer42) In which of the following molecules the central atom does not have sp3 hybridisation?  
  A)
   \[C{{H}_{4}}\]                  
  done clear
  B)
   \[S{{F}_{4}}\]                   
  done clear
  C)
   \[BF_{4}^{-}\]                  
  done clear
  D)
   \[NH_{4}^{+}\]
  done clear
  View Answer play_arrow

• 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                
  done clear
  B)
   393.4 K                
  done clear
  C)
   373.4 K                
  done clear
  D)
   293.4 K              
  done clear
  View Answer play_arrow

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

• question_answer45) When glycerol is treated with excess of HI, it produces  
  A)
   2-iodopro'pane               
  done clear
  B)
   allyl iodide
  done clear
  C)
   propene            
  done clear
  D)
   glycerol triiodide
  done clear
  View Answer play_arrow

• 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               
  done clear
  B)
   A, B and C          
  done clear
  C)
   B and C               
  done clear
  D)
   A and C
  done clear
  View Answer play_arrow

• 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)
  \[CaC{{O}_{3}}\]              
  done clear
  B)
  \[N{{a}_{2}}C{{O}_{3}}\]              
  done clear
  C)
  \[{{K}_{2}}C{{O}_{3}}\] 
  done clear
  D)
  \[CaS{{O}_{4}}\cdot 2{{H}_{2}}O\]
  done clear
  View Answer play_arrow

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

• question_answer49) Which one of the following compounds will be most readily dehydrated?
  A)
    
  done clear
  B)
  
  done clear
  C)
   
  done clear
  D)
  
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   increasing the concentration of NO
  done clear
  C)
   increasing the concentration of the \[C{{l}_{2}}\] doing
  done clear
  D)
  all of the above
  done clear
  View Answer play_arrow

• question_answer51) Which one of the following complexes is not expected to exhibit isomerism?    
  A)
  \[{{[Ni{{(N{{H}_{3}})}_{4}}{{({{H}_{2}}O)}_{2}}]}^{2+}}\]               
  done clear
  B)
  \[[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]
  done clear
  C)
  \[[Ni{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]      
  done clear
  D)
  \[{{[Ni{{(en)}_{3}}]}^{2+}}\]
  done clear
  View Answer play_arrow

• question_answer52) Which/of the following conformers for ethylene glycol is most stable?
  A)
                                      
  done clear
  B)
   
  done clear
  C)
                                     
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer53) The IUPAC name of the compound                         \[C{{H}_{3}}CH=CHC\equiv CH\]
  A)
   pent-4-yn-2-ene            
  done clear
  B)
   pent-3-en-1-yne
  done clear
  C)
   pent-2-en-4-yne            
  done clear
  D)
   pent-1-yn-3-ene
  done clear
  View Answer play_arrow

• question_answer54) Which of the following oxidation states is the most common among the lanthanides?    
  A)
   4                            
  done clear
  B)
   2                            
  done clear
  C)
   5                            
  done clear
  D)
   3
  done clear
  View Answer play_arrow

• question_answer55) How many bridging oxygen atoms are present in\[{{\text{P}}_{\text{4}}}{{\text{O}}_{\text{10}}}\]?
  A)
   6                            
  done clear
  B)
   4                            
  done clear
  C)
   2                            
  done clear
  D)
   5
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   Isostructural with same hybridisation for the central atom
  done clear
  C)
   Isostructural with different hybridization for the central atom
  done clear
  D)
   Similar in hybridisation for the central atom with different structures
  done clear
  View Answer play_arrow

• 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             
  done clear
  B)
   - 43.3 Kj              
  done clear
  C)
   - 10.3 kJ              
  done clear
  D)
   + 6.2 kJ
  done clear
  View Answer play_arrow

• 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     
  done clear
  B)
   Only B 
  done clear
  C)
   A, B and C     
  done clear
  D)
   A and B
  done clear
  View Answer play_arrow

• question_answer59) Fructose reduces Tollen's reagent due to            
  A)
   asymmetric carbons
  done clear
  B)
   primary alcoholic group
  done clear
  C)
   secondary alcoholic group
  done clear
  D)
   enolisation of fructose followed by conversion to aldehyde by base
  done clear
  View Answer play_arrow

• 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)
  \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\text{C}{{\text{H}}_{\text{2}}}\text{OC}{{\text{H}}_{\text{2}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\]
  done clear
  B)
  \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\text{C}{{\text{H}}_{\text{2}}}\text{OH}\]
  done clear
  C)
  \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\text{C}{{\text{H}}_{3}}\]                             
  done clear
  D)
  \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\text{C}{{\text{H}}_{\text{2}}}\text{C}{{\text{H}}_{\text{2}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\]
  done clear
  View Answer play_arrow

• 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

  done clear
  B)

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

  done clear
  C)

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

  done clear
  D)

  Structure	Description
  Premolars and molars	20 n all and 3 rooted

  done clear
  View Answer play_arrow

• 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
  done clear
  B)
  A-1         B-4         C-8         D-6
  done clear
  C)
  A-6         B-5         C-4         D-7
  done clear
  D)
  A-5         B-1         C-3         D-2
  done clear
  View Answer play_arrow

• 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              
  done clear
  B)
   arteries              
  done clear
  C)
   veins                   
  done clear
  D)
   lymph vessels
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   The gene for producing insulin is present in every body cell
  done clear
  C)
   Nucleosome is formed of nucleotides
  done clear
  D)
   DNA consists of a core of eight histones
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   The parents could not have had a normal daughter for this character
  done clear
  C)
   The trait under study could not be colour blindness
  done clear
  D)
   The male parent is homozygous dominant
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   Nodules act as a site for nitrogen fixation
  done clear
  C)
   The enzyme nitrogenase catalyses the conversion of atmospheric \[{{N}_{2}}\]to \[N{{H}_{3}}\]
  done clear
  D)
   Nitrogenase is insensitive to oxygen
  done clear
  View Answer play_arrow

• 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              
  done clear
  B)
   Casuarina          
  done clear
  C)
   Hydrilla               
  done clear
  D)
   Acacia
  done clear
  View Answer play_arrow

• 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

  done clear
  B)

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

  done clear
  C)

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

  done clear
  D)

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

  done clear
  View Answer play_arrow

• question_answer69) Which of the following is used in gene cloning? 
  A)
   Nucleoids          
  done clear
  B)
   Lomasomes
  done clear
  C)
   Mesosomes                     
  done clear
  D)
   Plasmids
  done clear
  View Answer play_arrow

• question_answer70) When domestic sewage mixes with river water small animals like rats will die after          
  A)
   drinking river water
  done clear
  B)
   the increased microbial activity releases micronutrients such as iron
  done clear
  C)
   the increased microbial activity uses up dissolved oxygen
  done clear
  D)
   the river water is still suitable for drinking as impurities are only about 0.1%
  done clear
  View Answer play_arrow

• 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,
  done clear
  B)
   [A]-(i) convergent, [B]-(i) oxygen, (ii) nucleosides
  done clear
  C)
   [B]-(i) water vapour, (ii) amino acids [C]-(i) rudimentary, (ii) anatomical
  done clear
  D)
   [C]-(i) vestigial, (ii) anatomical [D]-(i) mutations, (ii) multiplication
  done clear
  View Answer play_arrow

• question_answer72) Aestivation of petals in the flower of cotton is correctly shown in
  A)
                                                 
  done clear
  B)
  
  done clear
  C)
                                             
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer73) In which one of the following organism, its excretory organs are correctly stated?
  A)
   Humans              - Kidneys, sebaceous glands and tear glands
  done clear
  B)
   Earthworm        - Pharyngeal, integumentary and septal nephridia
  done clear
  C)
   Cockroach          - Malpighian tubules and enteric caeca
  done clear
  D)
   Frog                      - Kidneys, skin and buccal epithelium
  done clear
  View Answer play_arrow

• 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

  done clear
  B)

  A	B	C	D
  Equisetum	Ginkgo	Selaginella	Lycopodium

  done clear
  C)

  A	B	C	D
  Selaginella	Equisetum	Salvinia	Ginkgo

  done clear
  D)

  A	B	C	D
  Funaria	Adiantum	Salvinia	Riccia

  done clear
  View Answer play_arrow

• question_answer75) The most apparent change during the evolutionary history of Homo sapiens is traced in
  A)
   loss of body hair
  done clear
  B)
   walking upright
  done clear
  C)
   shortening of the jaws
  done clear
  D)
   remarkable increase in the brain size
  done clear
  View Answer play_arrow

• question_answer76) Which one of the following is now being commercially produced by biotechnological procedures?
  A)
   Nicotine             
  done clear
  B)
   Morphine
  done clear
  C)
   Quinine                              
  done clear
  D)
   Insulin
  done clear
  View Answer play_arrow

• question_answer77) The correct floral formula of soybean is                
  A)
   % \[{{K}_{(5)}}{{C}_{1+(2)+2}}{{A}_{(9)+1}}{{G}_{\overline{1}}}\]
  done clear
  B)
   % \[{{K}_{(5)}}{{C}_{1+(2)+2}}{{A}_{(9)+1}}{{G}_{\underline{1}}}\]
  done clear
  C)
   % \[{{K}_{(5)}}{{C}_{1+(2)+2}}{{A}_{(9)+1}}{{G}_{\underline{1}}}\]
  done clear
  D)
   %\[{{K}_{(5)}}{{C}_{1+2+(2)}}{{A}_{(9)+1}}{{G}_{\underline{1}}}\]
  done clear
  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
  done clear
  B)
   The pH of stomach will fall abruptly
  done clear
  C)
   Steapsin will be more effective
  done clear
  D)
   Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones
  done clear
  View Answer play_arrow

• question_answer79) Which one of the following is most appropriately defined?
  A)
   Host is an organism, which provides food to another organism
  done clear
  B)
   Amensalism is a relationship in which one species is benefited whereas the other is unaffected            
  done clear
  C)
   Predator is an organism that catches and kills other organism for food
  done clear
  D)
   Parasite is an organism, which always lives inside the body of other organism and may kill it,         
  done clear
  View Answer play_arrow

• 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               
  done clear
  B)
   A and B               
  done clear
  C)
   B and C               
  done clear
  D)
   C and D
  done clear
  View Answer play_arrow

• question_answer81) Which one of the following techniques is safest for the detection of cancer?                      
  A)
   Magnetic Resonance Imaging (MRI)
  done clear
  B)
   Radiography (X-ray)
  done clear
  C)
   Computed Tomography (CT)
  done clear
  D)
   Histopathological Studies
  done clear
  View Answer play_arrow

• question_answer82) Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release of     
  A)
   oestrogen from placenta
  done clear
  B)
   oxytocin from maternal pituitary
  done clear
  C)
   oxytocin from foetal pituitary
  done clear
  D)
   relaxin from placenta
  done clear
  View Answer play_arrow

• 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

  done clear
  B)

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

  done clear
  C)

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

  done clear
  D)

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

  done clear
  View Answer play_arrow

• question_answer84) In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the         
  A)
   ribosomes         
  done clear
  B)
   nucleus
  done clear
  C)
   dictyosomes    
  done clear
  D)
   ER        
  done clear
  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                              
  done clear
  B)
   A and B
  done clear
  C)
   B and C                               
  done clear
  D)
   C and D
  done clear
  View Answer play_arrow

• question_answer86) In human female, the blastocyst                                              
  A)
   forms placenta even before implantation
  done clear
  B)
   gets implanted into uterus three days after ovulation
  done clear
  C)
   gets nutrition from uterine endometrial secretion only after implantation
  done clear
  D)
   gets implanted in endometrium by the trophoblast cells
  done clear
  View Answer play_arrow

• question_answer87) The haemoglobin content per 100 mL of blood of a normal healthy human adult is
  A)
   5-11 g                  
  done clear
  B)
   25-30 g
  done clear
  C)
   17-20g                 
  done clear
  D)
   12-16 g
  done clear
  View Answer play_arrow

• question_answer88) An example of endomycorrhiza is                           
  A)
   Nostoc                
  done clear
  B)
   Giomus              
  done clear
  C)
   Agaricus             
  done clear
  D)
   Khizobium
  done clear
  View Answer play_arrow

• question_answer89) One of the commonly used plant growth hormone in tea plantations is
  A)
   ethylene                            
  done clear
  B)
   abscissic acid
  done clear
  C)
   zeatin                  
  done clear
  D)
   indole-3-acetic acid
  done clear
  View Answer play_arrow

• 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

  done clear
  B)

  A	B	C	D
  Denitrification	Ammonification	Plansts	Animals

  done clear
  C)

  A	B	C	D
  Nitrification	Denitrification	Animals	Plants

  done clear
  D)

  A	B	C	D
  Denitrification	Nitrification	Plants	Animals

  done clear
  View Answer play_arrow

• question_answer91) Jaundice is a disorder of                                                               
  A)
   excretory system           
  done clear
  B)
   skin and eyes
  done clear
  C)
   digestive system            
  done clear
  D)
   circulatory system
  done clear
  View Answer play_arrow

• question_answer92) Kranz anatomy is one of the characteristics of the leaves of
  A)
   potato                                
  done clear
  B)
   wheat
  done clear
  C)
   sugarcane         
  done clear
  D)
   mustard
  done clear
  View Answer play_arrow

• 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                       
  done clear
  B)
   RR                         
  done clear
  C)
   Rr                          
  done clear
  D)
   rr
  done clear
  View Answer play_arrow

• question_answer94) Transport of food material in higher plants takes place through
  A)
   companion cells              
  done clear
  B)
   transfusion tissue
  done clear
  C)
   tracheids           
  done clear
  D)
   sieve elements
  done clear
  View Answer play_arrow

• question_answer95) Which one of the following is monoecious?        
  A)
   Marchantia       
  done clear
  B)
   Cycas
  done clear
  C)
   Finns                                   
  done clear
  D)
   Date palm
  done clear
  View Answer play_arrow

• 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          
  done clear
  B)
   back cross
  done clear
  C)
   test cross                           
  done clear
  D)
   dihybrid cross
  done clear
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• question_answer97) The Indian rhinoceros is a natural inhabitant of which one of the Indian states?                 
  A)
   Uttarakhand    
  done clear
  B)
   Uttar Pradesh
  done clear
  C)
   Himachal Pradesh          
  done clear
  D)
   Assam
  done clear
  View Answer play_arrow

• 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

  done clear
  B)

  A	B	C
  Fixation	Transamination	Regeneration

  done clear
  C)

  A	B	C
  Fixation	Decarboxylation	Regeneration

  done clear
  D)

  A	B	C
  Carboxylation	Decarboxylation	Reduction

  done clear
  View Answer play_arrow

• question_answer99) Black (stem) rust of wheat is caused by                
  A)
   AIternaria solani
  done clear
  B)
   Ustilago nuda
  done clear
  C)
   Puccinia graminis
  done clear
  D)
   Xanthomonas oryzae
  done clear
  View Answer play_arrow

• question_answer100) Secretions from which one of the following are rich in fructose, calcium and some enzymes?
  A)
   Male accessory glands
  done clear
  B)
   Liver
  done clear
  C)
   Pancreas                            
  done clear
  D)
   Salivary glands
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   trophozoites reach maximum growth and give out certain toxins
  done clear
  C)
   parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs
  done clear
  D)
   microgametcytes and megagametocytes are being destroyed by the WBCs
  done clear
  View Answer play_arrow

• 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                        
  done clear
  B)
   Three  
  done clear
  C)
   Four                     
  done clear
  D)
   Five
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   Enzymes   are   denatured   at   high temperature but in certain exceptional organisms they are effective even at temperatures \[80{}^\circ -90{}^\circ C\]
  done clear
  C)
   Enzymes are highly specific
  done clear
  D)
   Most enzymes are proteins but some are lipids
  done clear
  View Answer play_arrow

• 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                           
  done clear
  B)
   endoplasmic reticulum
  done clear
  C)
   plasmalemma  
  done clear
  D)
   cytoskeleton
  done clear
  View Answer play_arrow

• 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

  done clear
  B)

  A	B	C	D
  Runner	Archegon ophore	Synergid	Antheridium

  done clear
  C)

  A	B	C	D
  Offset	Antherdidi ophore	Antipodals	Oogonium

  done clear
  D)

  A	B	C	D
  Sucker	Seta	Megaspore mother cell	Gemma cup

  done clear
  View Answer play_arrow

• question_answer106) Root development is promoted by                         
  A)
   abscisic acid      
  done clear
  B)
   auxin
  done clear
  C)
   gibberellin         
  done clear
  D)
   ethylene
  done clear
  View Answer play_arrow

• 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                               
  done clear
  B)
   A and B                 
  done clear
  C)
   B and C                      
  done clear
  D)
   C and D
  done clear
  View Answer play_arrow

• 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

  done clear
  B)

  A	B	C	D
  Sheath	Collar	Head	Tail fibres

  done clear
  C)

  A	B	C	D
  Head	Collar	Sheath	Tail fibres

  done clear
  D)

  A	B	C	D
  Collar	Tail fibres	Head	Sheath

  done clear
  View Answer play_arrow

• 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                
  done clear
  B)
   A only
  done clear
  C)
   A and C only     
  done clear
  D)
   B and D only
  done clear
  View Answer play_arrow

• question_answer110) Which one of the following cannot be used for preparation of vaccines against plague?                                                                
  A)
   Formalin-inactivated   suspensions   of virulent bacteria
  done clear
  B)
   Avirulent live bacteria
  done clear
  C)
   Synthetic capsular polysaccharide material
  done clear
  D)
   Heat-killed suspensions of virulent bacteria
  done clear
  View Answer play_arrow

• 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:
  done clear
  B)
   a single mating produces two young flies
  done clear
  C)
   smaller female is easily recognisable from larger male
  done clear
  D)
   it completes life cycle in about two weeks
  done clear
  View Answer play_arrow

• question_answer112) The lac operon consists of                                           
  A)
   four regulatory genes only
  done clear
  B)
   one regulatory gene and three structural genes
  done clear
  C)
   two regulatory genes and two structural genes
  done clear
  D)
   three regulatory genes and three structural genes            
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   lay eggs and guard them till they hatch
  done clear
  C)
   possess bony skeleton
  done clear
  D)
   have gill slits at some stage
  done clear
  View Answer play_arrow

• 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

  done clear
  B)

  Structure	Location	Function
  Cerebellum	Mid brain	Controls respiration and gastric secrietions

  done clear
  C)

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

  done clear
  D)

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

  done clear
  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                      
  done clear
  B)
   A, B, C 
  done clear
  C)
   B, C, D                 
  done clear
  D)
   A, B, D
  done clear
  View Answer play_arrow

• 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
  done clear
  B)
   First vertebra is axis, which articulates with the occipital condyles
  done clear
  C)
   The 9th and 10th pairs of ribs are called the floating ribs
  done clear
  D)
   Glenoid cavity is a depression to which the thigh bone articulates
  done clear
  View Answer play_arrow

• question_answer117) Vegetative propagation in Piscia occurs by          
  A)
   stolen                 
  done clear
  B)
   offset  
  done clear
  C)
   runner                
  done clear
  D)
   sucker
  done clear
  View Answer play_arrow

• 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

  done clear
  B)

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

  done clear
  C)

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

  done clear
  D)

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

  done clear
  View Answer play_arrow

• question_answer119) Which of the following representations shows the pyramid of numbers in a forest ecosystem?
  A)
   D                           
  done clear
  B)
   A                           
  done clear
  C)
   B                           
  done clear
  D)
   C                     
  done clear
  View Answer play_arrow

• question_answer120) The 3 '-5' phosphodiester linkages inside a polynucleotide chain serve to join
  A)
   one DNA strand with the other DNA strand
  done clear
  B)
   one nucleoside with another nucleoside
  done clear
  C)
   one nucleotide with another nucleotide
  done clear
  D)
   one nitrogenous base .with pentose sugar
  done clear
  View Answer play_arrow