Solved papers for AIIMS AIIMS Solved Paper-2003

done AIIMS Solved Paper-2003 Total Questions - 200

  • question_answer1) The velocity with which a projectile must be fired so that it escapes earths gravitation does not depend on:

    A)
     mass of die earth           

    B)
     mass of the projectile

    C)
     radius of the projectiles orbit

    D)
     gravitational constant

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  • question_answer2) Bernoullis equation is a consequence of conservation of;

    A)
     energy

    B)
                           linear momentum                         

    C)
     angular momentum      

    D)
     mass

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  • question_answer3) A laser beam is used for carrying out surgery because it:

    A)
     is highly monochromatic

    B)
     is highly coherent

    C)
     is highly directional

    D)
     can be sharply focused

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  • question_answer4) A wire of length L is drawn such that its diameter is reduced to half of its original diameter. If the initial resistance of the wire were 10\[\frac{1}{2\pi }\sqrt{\frac{k}{m}}\], its new resistance would be:

    A)
     40\[\frac{1}{2\pi }\sqrt{\frac{2k}{m}}\]         

    B)
                           80\[\frac{1}{2\pi }\sqrt{\frac{3k}{m}}\]                

    C)
     120\[\frac{1}{2\pi }\sqrt{\frac{k}{m}}\]                

    D)
           160\[\pi \]

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  • question_answer5) A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 kV, its kinetic energy will be:

    A)
     1840 keV            

    B)
           1/1840 keV       

    C)
     1 keV                   

    D)
           920 keV

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  • question_answer6) An electric dipole placed in a non-uniform electric field experiences :

    A)
     both, a torque and a net force

    B)
     only a force but no torque

    C)
     only a torque but no net force

    D)
     no torque and no net force

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  • question_answer7) In an ideal parallel LC circuit, the capacitor is charged by connecting it to a DC source which is then disconnected. The current in the circuit:

    A)
     becomes zero instantaneously

    B)
     grows monotonically

    C)
     decays monotonically

    D)
     oscillates instantaneously

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  • question_answer8) To a germanium sample, traces of gallium are added as an impurity. The resultant sample would behave like:

    A)
     a conductor

    B)
     a p -type semiconductor

    C)
     an n-type semiconductor

    D)
     an insulator

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  • question_answer9) A radioactive substance decays to 1/16th of its initial activity in 40 days. The half-life of the radioactive substance expressed in days is:

    A)
     2.5                        

    B)
           5                            

    C)
           10                         

    D)
           20

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  • question_answer10) A neutron makes a head-on elastic collision with a stationary deuteron. The fractional energy loss of the neutron in the collision is:

    A)
     16/81         

    B)
                           8/9                       

    C)
           8/27                     

    D)
           2/3

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  • question_answer11) The motion of planets in the solar system is an example of the conservation of :

    A)
     mass    

    B)
                           linear momentum                         

    C)
     angular momentum      

    D)
     energy

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  • question_answer12) Two small drops of mercury, each of radius R coalesce to form a single large drop. The ratio of the total surface energies before and after the change is:

    A)
     \[{{Q}^{2}}(4\pi {{\varepsilon }_{0}}{{a}^{2}})\]

    B)
                           \[-{{Q}^{2}}(4\pi {{\varepsilon }_{0}}{{a}^{2}})\]                              

    C)
     \[{{Q}^{2}}/(2\pi {{\varepsilon }_{0}}{{a}^{2}})\]                              

    D)
           \[2\mu F\]

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  • question_answer13) A black body, at a temperature of \[227{}^\circ C\], radiates heat at a rate of 20 cal\[{{T}_{2}}>{{T}_{1}}\]. When its temperature is raised to \[727{}^\circ C\], the heat radiated by it in cal \[3q/{{\varepsilon }_{0}}\] will be closet to :

    A)
     40       

    B)
    160                       

    C)
    320                       

    D)
    640

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  • question_answer14) Two springs of force constants k and 2k are connected to a mass as shown below. The frequency of oscillation of the mass is:                                

    A)
    \[\frac{1}{2\pi }\sqrt{\frac{k}{m}}\]

    B)
    \[\frac{1}{2\pi }\sqrt{\frac{2k}{m}}\]

    C)
    \[\frac{1}{2\pi }\sqrt{\frac{3k}{m}}\]

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

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  • question_answer15) When a beam of light is used to determine the position of an object, the maximum accuracy is achieved if the light is:

    A)
     polarized

    B)
     of longer wavelength

    C)
     of shorter wavelength

    D)
     of high intensity

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  • question_answer16) A double slit experiment is performed with light of wavelength 500 nm. A thin film of thickness 2\[y\]m and refractive index 1.5 is introduced in the path of the upper beam. The location of the central maximum will:

    A)
     remain unshifted

    B)
     shift downward by nearly two fringes

    C)
     shift upward by nearly two fringes

    D)
     shift downward by ten fringes

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  • question_answer17) If an electron and a photon propagate in the form of waves having the same wavelength, it implies that they have the same:

    A)
     energy     

    B)
                           momentum

    C)
     velocity              

    D)
           angular momentum

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  • question_answer18) Characteristic X-rays are produced due to:

    A)
     transfer of momentum in collision of electrons with target atoms

    B)
     transition of electrons from higher to lower electronic orbits of an atom

    C)
     heating of the target

    D)
     transfer of energy in collision of electrons with atoms in the target

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  • question_answer19) Three charges are placed at the vertices of an equilateral triangle of side a as shown in the following figure. The force experienced by the charge placed at the vertex A in a direction normal to BC is:

    A)
    \[x\]     

    B)
          \[{{i}_{1}},\]                      

    C)
     zero                     

    D)
    \[{{i}_{2}},\]

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  • question_answer20)  A capacitor of capacitance \[{{h}^{1/2}}\] is connected in the tank circuit of an oscillator oscillating with a frequency of 1 kHz, If the current flowing in the circuit is 2 mA, the voltage across the capacitor will be:

    A)
     0.16 V      

    B)
                           0.32 V                  

    C)
           79.5 V                                  

    D)
     159 V

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  • question_answer21) The earths magnetic field at a given point is \[0.5\,\times {{10}^{-5}}\,Wb\,\,{{m}^{-2}}\]. This field is to be annulled by magnetic induction at the centre of a circular conducting loop of radius 5.0 cm. The current required to be flown in the loop is nearly:

    A)
     0.2 A 

    B)
                                           0.4 A                    

    C)
     4 A                        

    D)
           40 A

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  • question_answer22) A frog can be levitated in a magnetic field produced by a current in a vertical solenoid placed below the frog. This is possible because the body of the frog behaves as:

    A)
     paramagnetic  

    B)
     diamagnetic     

    C)
           ferromagnetic                 

    D)
     anti ferromagnetic

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  • question_answer23) Shown below are the black body radiation curves at temperatures \[{{T}_{1}}\] and \[{{T}_{2}}({{T}_{2}}>{{T}_{1}})\]. Which of the following plots is correct?

    A)

    B)

    C)

    D)

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  • question_answer24) Shown below is a distribution of charges. The flux of electric field due to these charges through the surfaces S is:

    A)
    \[{{h}^{3/2}}\]                  

    B)
          \[{{h}^{2}}\]                      

    C)
          \[\beta \]                           

    D)
           zero

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  • question_answer25) In an experiment of find the focal length of a concave mirror, a graph is drawn between the magnitudes of u and v. The graph looks like:

    A)

    B)

    C)
           

    D)
                                                   

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  • question_answer26) Nuclear fusion is possible:

    A)
     only between light nuclei

    B)
     only between heavy nuclei

    C)
     between both light and heavy nuclei

    D)
     only between nuclei which are stable against \[[{{M}^{-1}}L{{T}^{-2}}A]\]-decay

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  • question_answer27) An electron is travelling along the \[[{{M}^{-2}}L{{T}^{-2}}{{A}^{-1}}]\]-direction. It encounters a magnetic field in the \[[ML{{T}^{-2}}{{A}^{-2}}]\]-direction. Its subsequent motion will be:

    A)
     straight line along the \[[ML{{T}^{-1}}{{A}^{-1}}]\]-direction

    B)
     a circle in the xz-plane 

    C)
     a circle in the yz-plane

    D)
     a circle in the xy-plane

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  • question_answer28) The difference in the lengths of a mean solar day and a sidereal day is about:

    A)
     1 min                   

    B)
           4 min                   

    C)
     15 min                 

    D)
           56 min

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  • question_answer29) A body starting from rest moves along a straight line with a constant acceleration. The variation of speed (v) with distance (i) I represented by the graph:                

    A)
                                                   

    B)
     

    C)
                                                   

    D)
     

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  • question_answer30) A rectangular loop carrying a current \[{{\beta }^{-}}\]is situated near a long straight wire carrying a steady current \[+\frac{G{{M}_{e}}m}{R}=\frac{1}{2}mv_{e}^{2}\] . The wire is parallel to one of the sides of the loop and is in the plane of the loop as shown in the figure. Then, the current loop will:

    A)
    move away from the wire

    B)
     move towards the wire

    C)
     remain stationary

    D)
     rotate about an axis parallel to the win

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  • question_answer31) A ball is thrown vertically upwards. Which the following plots represents the speed-tin graph of the ball during its flight if the l resistance is not ignored?

    A)
                                                     

    B)

    C)

    D)

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  • question_answer32) Radioactive nuclei that are injected into a patient collected at certain sites within its body, undergoing radioactive decay and emitting electromagnetic radiation. These radiations can then be recorded by a detector. This procedure  provides  an  important diagnostic tools called:

    A)
     gamma camera               

    B)
     CAT scan

    C)
     radiotracer technique

    D)
     gamma ray spectroscopy

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  • question_answer33) In a material medium, when a positron meets an electron both the particles annihilate leading to the emission of two gamma ray photons. This process forms the basis of an important diagnostic procedure called:

    A)
     MRI    

    B)
                                           PET                       

    C)
           CAT                      

    D)
           SPECT

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  • question_answer34) An astronaut is looking down on earths surface from a space shuttle at an altitude of 400 km. Assuming that the astronauts pupil diameter is 5 mm and the wavelength of visible light is 500 nm, the astronaut will be able to resolve linear objects of the size of about:

    A)
     0.5 m      

    B)
                           5 m                       

    C)
           50 m                                    

    D)
     500 m

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  • question_answer35) An earthquake generates both transverse (S) and longitudinal (P) sound waves in the earth. The speed of S waves is about 4.5 km/s and that of P waves is about 8.0 km/s. A seismograph records P and S waves from an earthquake. The first P wave arrives 4.0 min before the first S wave. The epicentre of the earthquake is located at a distance of about:

    A)
     25km   

    B)
                           250km 

    C)
           2500km              

    D)
           5000km

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  • question_answer36) A lead shot of a 1mm diameter falls through a long column of glycerine. The variation of its velocity v with distance covered is represented by:

    A)

    B)
                   

    C)

    D)
     

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  • question_answer37) The maximum distance up to which TV transmission from a TV tower of height h can be received is proportional to:

    A)
    \[{{M}_{e}}\]    

    B)
                          \[\therefore \]                 

    C)
          \[{{v}_{e}}=\sqrt{\frac{2G{{M}_{e}}}{{{\operatorname{R}}_{e}}}}\]                       

    D)
          \[\Omega \]

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  • question_answer38) In short wave communication waves of which of the following frequencies will be reflected back by the ionospheric layer having electron density 1011 per m3?

    A)
     2 MHz    

    B)
                           10 MHz               

    C)
                           12 MHz               

    D)
           18 MHz

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  • question_answer39) In the following common emitter configuration an n- p- n transistor with current gain \[\Omega \] -100 is used. The output voltage of the amplifier will be

    A)
     10 mV  

    B)
                                           0.1 V                    

    C)
           1.0 V 

    D)
           10 V    

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  • question_answer40) Using mass (M), length (E), time (T) and current (A) as fundamental quantities, the dimensions of permeability is:

    A)
    \[\Omega \]                      

    B)
    \[\Omega \]      

    C)
          \[\Omega \]      

    D)
          \[1:{{2}^{1/3}}\]

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  • question_answer41) Assertion: Temperatures near the sea coast are moderate. Reason: Water has a high thermal conductivity.

    A)
    1              

    B)
                          2

    C)
    3                             

    D)
          4

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  • question_answer42) Assertion: The earth is slowing down and as a result the moon is coming nearer to it. Reason: The angular momentum of the earth moon system is not conserved.

    A)
     1  

    B)
                                           2                            

    C)
           3                            

    D)
           4

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  • question_answer43) Assertion: A tube light emits white light. Reason: Emission of light in a tube takes place at a very high temperature.

    A)
     1  

    B)
                                           2                            

    C)
           3                            

    D)
           4

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  • question_answer44) Assertion: Radioactive nuclei emit \[{{2}^{1/3}}:1\]particles, Reason: Electrons exist inside the nucleus.

    A)
     1       

    B)
                           2                            

    C)
     3                                            

    D)
     4

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  • question_answer45) Assertion: The resistivity of a semiconductor increases with temperature. Reason: The atoms of a semiconductor vibrate with larger amplitude at higher temperatures thereby increasing its resistivity.

    A)
     1        

    B)
                           2                            

    C)
           3                            

    D)
           4

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  • question_answer46) Assertion: The Coulomb force is the dominating force in the universe. Reason: The Coulomb force is weaker than the gravitational force.

    A)
     1    

    B)
                                           2                            

    C)
           3                            

    D)
           4

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  • question_answer47) Assertion: The length of the day is slowly increasing. Reason: The dominant effect causing a slowdown in the rotation of the earth is the gravitational pull of other planets in the solar system.

    A)
     1   

    B)
                                           2                            

    C)
           3                            

    D)
           4

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  • question_answer48) Assertion: Bohr had to postulate that the electrons in stationary orbits around the nucleus do not radiate. Reason: According to classical physics all moving electrons radiate.

    A)
     1      

    B)
                                           2                            

    C)
           3                            

    D)
           4

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  • question_answer49) Assertion: The possibility of an electric bulb fusing is higher at the time of switching ON and OFF.                            Reason: Inductive effects produce a surge at the time of switch-OFF and switch-ON.

    A)
     1           

    B)
                           2            

    C)
           3                            

    D)
           4            

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  • question_answer50) Assertion: The stars twinkle while the planets do not.             Reason: The stars are much bigger in size than the planets.                   

    A)
     1 

    B)
                                           2            

    C)
           3                            

    D)
           4          

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  • question_answer51) Assertion: A beam of charged particles is employed in the treatment of cancer. Reason: Charged particles on passing through a material medium lose their energy by causing ionization of the atoms along their path.

    A)
     1  

    B)
                                           2                            

    C)
           3                            

    D)
           4

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  • question_answer52) Assertion: When a beetle moves along the sand within a few tens of centimeters of a sand scorpion, the scoprion immediately turns towards the beetle and dashes towards it. Reason: When a beetle disturbs the sand sends pulses along the sands surface. One of plates is longitudinal while the other set is transverse.

    A)
     1

    B)
                                           2                            

    C)
           3                            

    D)
           4

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  • question_answer53) Assertion: When a bottle of cold carbonated drink is opened, a slight fog forms around t opening. Reason: Adiabatic expansion of the gas causes lowering of temperature a condensation of water vapors.

    A)
     1         

    B)
                           2                                            

    C)
     3                            

    D)
           4

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  • question_answer54) Assertion: The size of a hydrogen balloon increases as it rises in air. Reason: The material of the balloon can easily stretched.

    A)
     1     

    B)
                                           2                            

    C)
           3                            

    D)
           4

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  • question_answer55) Assertion: Owls can move freely during night Reason: They have large number of rods on their retina.

    A)
     1      

    B)
                                           2                            

    C)
           3                            

    D)
           4

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  • question_answer56) Assertion: It is hotter over the top of a fire than at the same distance on the sides. Reason: Air surrounding the fire conducts more heat upwards.

    A)
     1       

    B)
                                           2                            

    C)
           3                            

    D)
                           4

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  • question_answer57) Assertion: The amplitude of an oscillating pendulum decreases gradually with time. Reason: The frequency of the pendulum decreases with time.

    A)
     1  

    B)
                                           2                            

    C)
           3                            

    D)
                           4

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  • question_answer58) Assertion: Microwave communication is preferred over optical communication. Reason: Microwaves provide large number of channels and band width compared to optical signals.

    A)
     1                            

    B)
           2                            

    C)
           3                            

    D)
           4

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  • question_answer59) Assertion: Neutrons penetrate matter more readily as compared to protons. Reason: Neutrons are slightly more massive than protons.

    A)
     1         

    B)
                                           2                            

    C)
           3                            

    D)
           4

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  • question_answer60) Assertion: In high latitudes one sees colorful curtains of light hanging down from high altitudes. Reason: The high energy charged particles from the sun are deflected to Polar Regions by the magnetic field of the earth.

    A)
     1          

    B)
                          2                             

    C)
          3                             

    D)
          4

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  • question_answer61) The paramagnetic species is:

    A)
     \[NiCl_{4}^{2-}\]                            

    B)
     \[meso-[Co{{(N{{H}_{3}})}_{3}}C{{l}_{3}}]\]       

    C)
            \[cis-[PtC{{l}_{2}}{{(N{{H}_{3}})}_{2}}]\]              

    D)
            \[cis-{{K}_{2}}[PtC{{l}_{2}}B{{r}_{2}}]\]

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  • question_answer62) The reagent commonly used to determine hardness of water titrimetrically is:

    A)
     oxalic acid

    B)
     disodium salt of DTA

    C)
     sodium citrate

    D)
     sodium thiosulphate

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  • question_answer63) The true statement for the acids of phosphorus. \[N{{a}_{2}}CoC{{l}_{4}}\]and \[VC{{l}_{3}}\] is:

    A)
    the order of their acidity is \[VOS{{O}_{4}}\]

    B)
     all of them are reducing in nature

    C)
     all of them are tribasic acids

    D)
     the geometry of phosphorus is tetrahedral in all the three

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  • question_answer64) The ion which is not tetrahedral in shape is:

    A)
     \[N{{a}_{3}}V{{O}_{4}}\]                             

    B)
     \[[V{{({{H}_{2}}O)}_{6}}]S{{O}_{4}}.{{H}_{2}}O\]             

    C)
            \[MnO_{4}^{2-}\]    

    D)
            \[MnO_{4}^{-}\]

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  • question_answer65) The complex used as an anticancer agent is:

    A)
     \[Mn{{O}_{2}}\]

    B)
     \[MnO_{4}^{-}\]

    C)
     \[Mn{{O}_{2}}\]

    D)
     \[M{{n}_{2}}{{O}_{7}}\]

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  • question_answer66) The colourless species is:

    A)
     \[Mn{{O}_{2}}\]

    B)
     \[M{{n}_{2}}{{O}_{7}}\]

    C)
     \[Mn{{O}_{2}}\]

    D)
     \[+II\]

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  • question_answer67) \[+III\] (1 mol) in neutral aqueous medium is disproportionate to:

    A)
     2/3 mol of \[La\]; and 1/3 mol of \[Nd\]

    B)
     1/3 mol of \[Ce\]; and 2/3 mol of \[Eu\]

    C)
     1/3 mol of \[HCl\] and 1/3 mol of \[HN{{O}_{3}}\]

    D)
     2/3 mol of  \[3:1\]and 1/3 mol of \[Cl{{O}_{2}}\]

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  • question_answer68) Lanthanide for which \[NOCl\] and \[NC{{l}_{3}}\] oxidation states are common is:

    A)
     \[{{N}_{2}}{{O}_{4}}\]                                  

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

    C)
     \[N{{a}^{+}}\]                  

    D)
            \[N{{H}_{3}}\]

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  • question_answer69) The mixture of concentrated \[CO\] and \[N{{H}_{3}}\] made in \[{{C}_{2}}O_{4}^{2-}\] ratio contains:

    A)
     \[C{{u}_{2}}{{(SCN)}_{2}}\]                        

    B)
     \[C{{u}_{2}}O\]               

    C)
            \[C{{u}_{2}}{{I}_{2}}\]                  

    D)
     \[C{{u}_{2}}C{{O}_{3}}\]

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  • question_answer70) On dissolving moderate amount of sodium metal in liquid \[C{{u}_{2}}O\] at low temperature, which one of the following does not occur?

    A)
     Blue colored solution is obtained

    B)
     \[FeS\] ions are formed in the solution

    C)
     Liquid \[Co\] becomes good conductor of electricity

    D)
     Liquid ammonia remains diamagnetic

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  • question_answer71) The ligand called \[\pi \] acid is:

    A)
     \[C{{u}_{2}}S\]                                

    B)
     \[S{{O}_{2}}\]  

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

    D)
            ethylene diamine

    View Answer play_arrow
  • question_answer72) The compound used for gravimetric estimation of copper (II) is:

    A)
     \[{{C}_{6}}{{H}_{5}}COOH\]    

    B)
     \[m-C{{H}_{3}}O{{C}_{6}}{{H}_{4}}COOH\]         

    C)
            \[p-C{{H}_{3}}O{{C}_{6}}{{H}_{4}}COOH\]         

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

    View Answer play_arrow
  • question_answer73)  In the extraction of copper from its sulphide ore, the metal is formed by reduction of \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}NHC{{H}_{3}}\] with:

    A)
     \[{{O}_{2}}N.C{{H}_{2}}N{{H}_{2}}\]                                      

    B)
     \[CO\]                 

    C)
     \[COOH\]          

    D)
            \[CN\]

    View Answer play_arrow
  • question_answer74) Among the following the strongest acid is:

    A)
     \[COC{{H}_{3}}\]

    B)
     \[NHCOC{{H}_{3}}\]

    C)
     \[C{{H}_{3}}{{O}^{-}}\]

    D)
     \[{{C}_{6}}{{H}_{5}}{{O}^{-}}\]

    View Answer play_arrow
  • question_answer75) Among the following the weakest base is:

    A)
     \[{{(C{{H}_{3}})}_{2}}CH{{O}^{-}}\]        

    B)
     \[{{(C{{H}_{3}})}_{3}}C{{O}^{-}}\]

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

    D)
            \[C{{H}_{3}}C{{O}_{2}}{{C}_{2}}{{H}_{5}}\]

    View Answer play_arrow
  • question_answer76) IUPAC name of  is:

    A)
     3-methyl cyclohexene

    B)
     1-methyl cyclohex-2-ene

    C)
     6-methyl cyclohexene

    D)
     1-methyl cyclohex-5-ene

    View Answer play_arrow
  • question_answer77) Intermolecular hydrogen bonding is strongest in:

    A)
     methylamine  

    B)
     phenol

    C)
            formaldehyde 

    D)
            methanol

    View Answer play_arrow
  • question_answer78) The ortho /para directing group among the following is:

    A)
     \[{{C}_{6}}{{H}_{5}}C{{O}_{2}}C{{H}_{3}}\]         

    B)
            \[C{{H}_{3}}C{{O}_{2}}{{C}_{6}}{{H}_{5}}\]                         

    C)
     \[Sn/HCl\]         

    D)
     \[{{H}_{2}}/Pd-C\]

    View Answer play_arrow
  • question_answer79) The treatment of benzene with isobutene in the presence of sulphuric acid gives:

    A)
     isobutyl benzene

    B)
           terr-butyl benzene       

    C)
     n-butyl benzene            

    D)
     no reaction

    View Answer play_arrow
  • question_answer80) The most reactive nucleophile among the following is:

    A)
     \[Zn/NaOH\]      

    B)
                           \[Zn/N{{H}_{4}}Cl\]       

    C)
            \[{{H}_{2}}O/{{H}_{2}}S{{O}_{4}}\]  

    D)
           \[Hg{{(OAc)}_{2}}/{{H}_{2}}O\]

    View Answer play_arrow
  • question_answer81) The absolute configuration of the following:

    A)
     2S, 3R                  

    B)
            2S, 3S  

    C)
            2R, 3S                  

    D)
            2R, 3R

    View Answer play_arrow
  • question_answer82) Subunit present in haemoglobin are:

    A)
     2                            

    B)
            3                            

    C)
            4                            

    D)
            5

    View Answer play_arrow
  • question_answer83) At higher temperature, iodoform reaction is given by the dilute solution of:

    A)
     \[NaB{{H}_{4}}\]   

    B)
            \[{{B}_{2}}{{H}_{6}}\]

    C)
            \[{{H}_{2}}{{O}_{2}}\]  

    D)
           \[C{{H}_{3}}C{{O}_{2}}H/{{H}_{2}}S{{O}_{4}}\]

    View Answer play_arrow
  • question_answer84) Among the following, the achiral amino acid is:

    A)
     2-ethylalanine

    B)
     2-methylglycine

    C)
     2-hydroxymethyl serine

    D)
     tryptophan

    View Answer play_arrow
  • question_answer85) Nitrobenzene gives N-phenylhydroxylamine by:

    A)
     \[C{{H}_{3}}Cl,C{{H}_{3}}Br,C{{H}_{3}}F\]            

    B)
     \[C{{H}_{3}}F,C{{H}_{3}}Cl,C{{H}_{3}}Br\]            

    C)
     \[C{{H}_{3}}Br,C{{H}_{3}}Cl,C{{H}_{3}}F\]    

    D)
            \[C{{H}_{3}}Br,C{{H}_{3}}F,C{{H}_{3}}Cl\]

    View Answer play_arrow
  • question_answer86) Propan -l-ol can be prepared from propene by:

    A)
     \[N{{a}_{2}}O\]

    B)
     \[C-H\] followed by \[N{{H}_{4}}N{{O}_{3}}\]

    C)
     \[N{{H}_{4}}N{{O}_{3}}\], followed by \[-7.53\text{ }kJ/mol\]

    D)
     \[-398.1\text{ }kJ/mol\]

    View Answer play_arrow
  • question_answer87) Which of the following are arranged in the decreasing order of dipole moment?

    A)
     \[-16.1\text{ }kJ/mol\]

    B)
     \[-602\text{ }kJ/mol\]

    C)
     \[Cd(s)+2Ni{{(OH)}_{3}}(s)\xrightarrow{{}}CdO(s)\]

    D)
     \[+2Ni{{(OH)}_{2}}(s)+{{H}_{2}}O(l)\]

    View Answer play_arrow
  • question_answer88) What is the coordination number of sodium in \[Pb(s)+Pb{{O}_{2}}(s)+2{{H}_{2}}S{{O}_{4}}(aq)\xrightarrow{{}}\]?

    A)
     6                            

    B)
            4                            

    C)
     8                            

    D)
            2

    View Answer play_arrow
  • question_answer89) Which of the following compounds possesses the \[2PbS{{O}_{4}}(s)+2{{H}_{2}}O(l)\] bond with the lowest bond dissociation energy?

    A)
     Toluene

    B)
     Benzene

    C)
     N- Pentane

    D)
     2, -2dimethyl propane 

    View Answer play_arrow
  • question_answer90) One gram sample of \[2{{H}_{2}}(g)+{{O}_{2}}(g)\xrightarrow{{}}2{{H}_{2}}O(l)\] is decomposed in a bomb calorimeter. The temperature of the calorimeter increases by 6.12K. The heat capacity of the system is 1.23 kJ/g/deg. What is the molar heat of decomposition for\[2Fe(s)+{{O}_{2}}(g)+4{{H}^{+}}(aq)\xrightarrow{{}}\]?

    A)
     \[2F{{e}^{2+}}(aq)+2{{H}_{2}}O(l)\]

    B)
     \[0.8M{{H}_{2}}S+0.8MKHS\]

    C)
     \[2M{{C}_{6}}{{H}_{5}}N{{H}_{2}}+2M{{C}_{6}}{{H}_{5}}N{{H}_{3}}Br\]

    D)
     \[3M{{H}_{2}}C{{O}_{3}}+3MKHC{{O}_{3}}\]

    View Answer play_arrow
  • question_answer91) Which one of the statements given below concerning properties of solution, describes a colligative effect?

    A)
     Boiling point of pure water decreases by the addition of ethanol

    B)
     Vapor pressure of pure water decreases by the addition of nitric acid

    C)
     Vapour pressure of pure benzene decreases by the addition of naphthalene

    D)
     Boiling point of pure benzene increases by the addition of toluene

    View Answer play_arrow
  • question_answer92) Which of the following reaction is used to make a fuel cell?

    A)
     \[0.05M\,KCl{{O}_{4}}+0.05M\,HCl{{O}_{4}}\]                                       \[CaO(s)+C{{O}_{2}}(g)\rightleftharpoons CaC{{O}_{3}}(s)\]

    B)
     \[CaO(s)+C{{O}_{2}}(g)\rightleftharpoons CaC{{O}_{3}}(s)\]                                         \[K{{O}_{2}}\]

    C)
     \[Si{{O}_{2}}\]

    D)
     \[Ti{{O}_{2}}\]                                         \[Ba{{O}_{2}}\]

    View Answer play_arrow
  • question_answer93) Which one of the following is not a buffer solution?

    A)
     \[{{H}_{3}}P{{O}_{2}},{{H}_{3}}P{{O}_{3}}\]

    B)
     \[2M\,{{C}_{6}}{{H}_{5}}N{{H}_{2}}\,+2M\,{{C}_{6}}{{H}_{5}}\,\overset{+}{\mathop{N}}\,{{H}_{3}}B{{r}^{-}}\]

    C)
     \[{{H}_{3}}P{{O}_{4}}>{{H}_{3}}P{{O}_{2}}>{{H}_{3}}P{{O}_{3}}\]

    D)
     \[BF_{4}^{-}\]

    View Answer play_arrow
  • question_answer94) Which one of the following has \[\Delta {{S}^{o}}\] greater than zero?

    A)
     \[NH_{4}^{+}\]

    B)
     \[Cu(N{{H}_{3}})_{4}^{2+}\]

    C)
     \[NiCl_{4}^{2-}\]

    D)
     \[meso-[Co{{(N{{H}_{3}})}_{3}}C{{l}_{3}}]\]

    View Answer play_arrow
  • question_answer95)  The quantum number m of a free gaseous atom is associated with :

    A)
     the effective volume of the orbital

    B)
     the shape of the orbital

    C)
     the spatial orientation of the orbital

    D)
     the energy of the orbital in the absence of a magnetic field

    View Answer play_arrow
  • question_answer96) Which one of the following is not a surfactant?

    A)
     \[cis-[PtC{{l}_{2}}{{(N{{H}_{3}})}_{2}}]\]

    B)
     \[cis-{{K}_{2}}[PtC{{l}_{2}}B{{r}_{2}}]\]

    C)
     \[N{{a}_{2}}CoC{{l}_{4}}\]

    D)
     \[VC{{l}_{3}}\]

    View Answer play_arrow
  • question_answer97) Time required to deposit one mill mole of aluminium metal by the passage of 9.65 A through aqueous solution of aluminium ion is:

    A)
     \[VOS{{O}_{4}}\]

    B)
                                            \[N{{a}_{3}}V{{O}_{4}}\]                             

    C)
     \[[V{{({{H}_{2}}O)}_{6}}]S{{O}_{4}}.{{H}_{2}}O\]             

    D)
            \[MnO_{4}^{2-}\]

    View Answer play_arrow
  • question_answer98) In which of the following acid-base titration, pH is greater than 8 at equivalence point?

    A)
     Acetic acid versus ammonia

    B)
     Acetic acid versus sodium hydroxide

    C)
     Hydrochloric acid versus ammonia

    D)
     Hydrochloric acid versus sodium hydroxide

    View Answer play_arrow
  • question_answer99) Which of the following is not a green house gas?

    A)
     Carbon dioxide               

    B)
     Water vapour

    C)
                            Methane      

    D)
            Oxygen

    View Answer play_arrow
  • question_answer100) The potential energy diagram for a reaction \[MnO_{4}^{-}\] is given below \[Mn{{O}_{2}}\] of the reaction corresponds to the energy:

    A)
     a                                            

    B)
     b                    

    C)
                            c           

    D)
            \[MnO_{4}^{-}\]                 

    View Answer play_arrow
  • question_answer101) Assertion: Solution of \[Mn{{O}_{2}}\] in water is intensely coloured. Reason Oxidation state of \[M{{n}_{2}}{{O}_{7}}\] in \[Mn{{O}_{2}}\]  is \[M{{n}_{2}}{{O}_{7}}\]:

    A)
    1                                             

    B)
     2                            

    C)
            3                            

    D)
            4

    View Answer play_arrow
  • question_answer102) Assertion: \[Mn{{O}_{2}}\] is a weaker ligand than \[+II\]. Reason  \[+III\]ionizes to give \[La\] ions in aqueous solution.

    A)
     1                                            

    B)
     2                            

    C)
     3                            

    D)
            4

    View Answer play_arrow
  • question_answer103) Assertion:  \[Nd\] is a stable compound. Reason Iodide stabilizes higher oxidation state:

    A)
     1                                            

    B)
     2                            

    C)
     3                            

    D)
            4

    View Answer play_arrow
  • question_answer104) Assertion: \[Ce\] emits -a positron giving \[Eu\]. Reason In \[HCl\] emission neutron is transformed into proton.

    A)
     1                                            

    B)
     2                            

    C)
     3           

    D)
            4

    View Answer play_arrow
  • question_answer105) Assertion: Barium is not required for normal biological function in human. Reason Barium does not show variable oxidation state.

    A)
     1                                            

    B)
     2                            

    C)
     3                            

    D)
            4

    View Answer play_arrow
  • question_answer106) Assertion: Haemoglobin is an oxygen carrier. Reason Oxygen binds as \[HN{{O}_{3}}\] to \[3:1\] of haemoglobin.

    A)
     1                                            

    B)
     2                            

    C)
     3                            

    D)
            4

    View Answer play_arrow
  • question_answer107) Assertion: Glycosides are hydrolyzed in acidic conditions. Reason Glycosides are acetals.

    A)
     1                            

    B)
            2                            

    C)
            3                            

    D)
            4

    View Answer play_arrow
  • question_answer108) Assertion: Benzyl bromide when kept in acetone water it produces benzyl alcohol. Reason The reaction follows \[Cl{{O}_{2}}\] mechanism.

    A)
     1                            

    B)
            2                            

    C)
     3                            

    D)
            4

    View Answer play_arrow
  • question_answer109) Assertion: Activity of an enzyme is pH- dependent. Reason Change in pH affects the solubility of the enzyme in water.

    A)
     1                                            

    B)
     2                            

    C)
            3                            

    D)
            4

    View Answer play_arrow
  • question_answer110) Assertion: Alkyl benzene is not prepared by Friedel-Crafts alkylation of benzene. Reason Alkyl halides are less reactive than acyl halides.

    A)
     1                                            

    B)
     2                            

    C)
            3                            

    D)
            4

    View Answer play_arrow
  • question_answer111) Assertion: Hydroxyketones are not directly used in Grignard reaction. Reason Grignard reagents react with hydroxyl group.

    A)
     1                                            

    B)
     2                            

    C)
            3                            

    D)
            4

    View Answer play_arrow
  • question_answer112) Assertion: Tran5-2-butene on reaction with \[NOCl\] gives meso-2, 3-dibromobutane. Reason The reaction involves \[NC{{l}_{3}}\]-addition of bromine.

    A)
     1                                            

    B)
     2                            

    C)
            3                            

    D)
            4

    View Answer play_arrow
  • question_answer113)  Assertion:  \[{{N}_{2}}{{O}_{4}}\]3-dihydroxy cyclohexane exists in boat conformation. Reason In the chair form, there will not be hydrogen bonding between the two hydroxyl groups.

    A)
     1                                            

    B)
     2                            

    C)
            3                            

    D)
            4

    View Answer play_arrow
  • question_answer114) Assertion: The increases in internal energy \[N{{H}_{3}}\] for the vaporization of one mole of water at 1 atm and 373 K is zero. Reason For all isothermal processes \[N{{a}^{+}}\].

    A)
     1                                            

    B)
     2                            

    C)
            3                            

    D)
            4

    View Answer play_arrow
  • question_answer115) Assertion: \[N{{H}_{3}}\] is more soluble in \[CO\] than in plain water. Reason Carbonate is a weak base and reacts with the \[N{{H}_{3}}\] from the strong acid, causing the barium salt to dissociate.

    A)
     1                                            

    B)
     2                            

    C)
     3                            

    D)
            4

    View Answer play_arrow
  • question_answer116) Assertion: \[{{C}_{2}}O_{4}^{2-}\] and \[C{{u}_{2}}{{(SCN)}_{2}}\] are almost the same for the reaction, \[C{{u}_{2}}O\] Reason All reactants and products are gases.

    A)
     1                                            

    B)
     2                            

    C)
            3                            

    D)
            4

    View Answer play_arrow
  • question_answer117) Assertion: Photochemical smog is produced by nitrogen oxides. Reason Vehicular pollution is a major source of nitrogen oxides.

    A)
     1                            

    B)
            2                            

    C)
     3                            

    D)
            4

    View Answer play_arrow
  • question_answer118) Assertion: Increasing pressure on pure water decreases its freezing point. Reason Density of water is maximum at \[C{{u}_{2}}{{I}_{2}}\].

    A)
     1                                            

    B)
     2                            

    C)
     3                            

    D)
            4

    View Answer play_arrow
  • question_answer119) Assertion: The micelle formed by sodium stearate in water has \[C{{u}_{2}}C{{O}_{3}}\] groups at the surface. Reason Surface tension of water is reduced by the addition of stearate.

    A)
     1                            

    B)
            2                            

    C)
     3                            

    D)
            4

    View Answer play_arrow
  • question_answer120) Assertion: The \[C{{u}_{2}}O\] bond length in \[FeS\] is shorter than that of \[Co\]. Reason \[C{{u}_{2}}S\] is an ionic compound.

    A)
     1                            

    B)
            2                            

    C)
            3                            

    D)
            4

    View Answer play_arrow
  • question_answer121) The crystal of lead zirconate is a key component of:

    A)
    electroencephalography

    B)
    electrocardiography

    C)
    magneto encephalography

    D)
    sonography

    View Answer play_arrow
  • question_answer122) Which one of the following is a matching pair of a certain body feature and its value/count in a normal human adult?

    A)
     Urea 5-10 mg/100 mL of blood

    B)
     Blood sugar (fasting) ?70-100 mg/ 100 mL

    C)
     Total blood volume ? 5-61

    D)
     ESR in Wintrobe method ?9-15 mm in males and 20-34 mm in females

    View Answer play_arrow
  • question_answer123) Which one of the following pairs of term/names mean one and the same thing?

    A)
     Gene pool?genome

    B)
     Codon?gene

    C)
     Cistron?triplet

    D)
     DNA finger printing?DNA profiling

    View Answer play_arrow
  • question_answer124) Which one of the following is a matching pair?

    A)
     Lubb-Sharp colour of AV valves at the beginning of ventricular systole

    B)
     Dup-Sudden opening of semilunar valves at the beginning of ventricular diastole

    C)
     Pulsation of the radial artery valves in the blood vessels

    D)
     Initiation of the heart beat Purkinje fibers

    View Answer play_arrow
  • question_answer125) Mr. X is eating curd/yoghurt. For this food intake in a food chain he should be considered as occupying:

    A)
     first trophic level            

    B)
     second trophic level

    C)
     third trophic level

    D)
     fourth trophic level

    View Answer play_arrow
  • question_answer126) July 11 is observed as:

    A)
     World Population Day

    B)
     No Tobacoo Day

    C)
     World Environment Day

    D)
     World Health Day

    View Answer play_arrow
  • question_answer127) Biological Oxygen Demand (BOD) is a measure of:

    A)
     industrial wastes poured into water bodies

    B)
     extent to which water is polluted with organic compound

    C)
     amount of carbon monoxide inseparably combined with haemoglobin

    D)
     amount of oxygen needed by green plants during night

    View Answer play_arrow
  • question_answer128) Which one of the following is a sesamoid bone?

    A)
     Pelvis

    B)
                                           Patella                

    C)
                    Pterygoid           

    D)
           Pectoral girdle

    View Answer play_arrow
  • question_answer129) Both corpus luteum and macula lutea are:

    A)
     found in human ovaries

    B)
     a source of hormones

    C)
     characterised by a yellow colour

    D)
     contributory in maintaining pregnancy

    View Answer play_arrow
  • question_answer130) Photorespiration in \[{{C}_{3}}\] plants starts from:        

    A)
     phosphoglycerate         

    B)
     phosphoglycolate

    C)
                           glycerate           

    D)
           glycine

    View Answer play_arrow
  • question_answer131) Just as Xenopsylla is to Yersenia pestis, so is:

    A)
     Glossina palpalis to Wuchereria bancrofti

    B)
     Culex to Plasmodium falciparum

    C)
     Homo sapiens to Taenia solium

    D)
     Phlebotomous to Leishmania donovani

    View Answer play_arrow
  • question_answer132) Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to:

    A)
     vitamin A toxicity

    B)
     kidney stones

    C)
     hypercholesterolemia

    D)
     urine laden with ketone bodies

    View Answer play_arrow
  • question_answer133) Drinking of mineral water with very low level of pesticides (about 0.02 ppm) for long periods may:

    A)
     produce immunity against mosquito

    B)
     cause leukemia (blood cancer) in most people

    C)
     cause cancer of the intestine

    D)
     lead to accumulation of pesticide residues in body fat

    View Answer play_arrow
  • question_answer134) A person passes much urine and drinks much water but his blood glucose level is normal. This condition may be the result of:

    A)
     a reduction in insulin secretion from pancreas

    B)
     a reduction in vasopressin secretion from posterior pituitary

    C)
     a fall in the glucose concentration in urine

    D)
     an increase in secretion of glucagon

    View Answer play_arrow
  • question_answer135) What is true about t-RNA?

    A)
     It binds with an amino acid at it 3 end

    B)
     It has five double stranded regions

    C)
     It has a codon at one end which recognizes the anticodon on messenger RNA

    D)
     It looks like clover leaf in the three dimensional structure

    View Answer play_arrow
  • question_answer136) An example of competitive inhibition of an enzyme is the inhibition of:

    A)
     succinic dehydrogenase by malonic acid

    B)
     cytochrome oxidase by cyanide

    C)
     hexokinase by glucose-6-phosphate

    D)
     carbonic anhydrase by carbon dioxide

    View Answer play_arrow
  • question_answer137) Which one of the following is a matching pat of certain organisms (s) and the kind of association?

    A)
     Shark and sucker fish?commensalism

    B)
     Algae and fungi in lichens?mutualism

    C)
     Orchids growing on tress?parasitism

    D)
     Cuscuta (dodder) growing on other flowering plants?epiphytism

    View Answer play_arrow
  • question_answer138) Photochemical smog formed in congested metropolitan cities mainly consists of:

    A)
     ozone, peroxyacetyl nitrate and \[N{{O}_{x}}\]

    B)
     smoke, peroxyacetyl nitrate and \[S{{O}_{2}}\]

    C)
     hydrocarbons, \[S{{O}_{2}}\] and \[C{{O}_{2}}\]

    D)
     hydrocarbons, ozone and \[S{{O}_{2}}\]

    View Answer play_arrow
  • question_answer139) In almost all Indian metropolitan cities like Delhi the major atmospheric pollutant (s) is/are:

    A)
     suspended particulate matter (SPM)

    B)
     oxides of sulphur

    C)
     carbon dioxide and carbon monoxide

    D)
     oxides of nitrogen

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  • question_answer140) Excessive stimulation of vagus nerve in humans may lead to:

    A)
     hoarse voice

    B)
     peptic ulcers

    C)
     efficient digestion of proteins

    D)
     irregular contraction of diaphragm

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  • question_answer141) Restriction enzymes:

    A)
     are endonucleases which cleave DNA at specific sites

    B)
     Make DNA complementary to an existing DNA or RNA

    C)
     cut or join DNA fragments

    D)
     are required in vectorless direct gene transfer

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  • question_answer142) Which fact suggests that most oxygen is transported from lungs to the tissue combined with haemoglobin rather than dissolved in blood plasma?

    A)
     \[{{O}_{2}}\] carrying capacity of whole blood is much higher than that of plasma and \[{{O}_{2}}\] content of blood leaving the lungs is greater than that of blood entering the lungs

    B)
     Haemoglobin can combine with \[{{O}_{2}}\]

    C)
     Oxyhaemoglobin can dissociate into haemoglobin and \[{{O}_{2}}\]

    D)
     Increase in \[C{{O}_{2}}\] concentration decreases the \[{{O}_{2}}\] affinity of haemoglobin

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  • question_answer143) Which one of the following correctly represents the manner of replication of DNA?

    A)

    B)

    C)

    D)

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  • question_answer144) Which one of the following codons codes for the same information as UGC?

    A)
                    UGU     

    B)
           UGA                    

    C)
                    UAG                     

    D)
           UGG

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  • question_answer145) A person is wearing        spectacles with concave lenses for correcting vision. While not using the glasses, the image of a distant object in his case will be formed:

    A)
     On the blind spot

    B)
     behind the retina

    C)
     in front of the retina

    D)
     on the yellow spot

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  • question_answer146) The early stage human embryo distinctly possesses:

    A)
     gills       

    B)
                           gill slits                

    C)
     external ear (pinna)

    D)
           eyebrows

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  • question_answer147) The phase of menstrual cycle in humans that lasts for 7-8 days is:

    A)
     follicular phase

    B)
           ovulatory phase             

    C)
           luteal phase     

    D)
           menstruation

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  • question_answer148) The source of somatostatin is same as that of:

    A)
     thyroxine and calcitonin

    B)
     insulin and glucagon

    C)
     somatotropin and prolactin

    D)
     vasopressin and oxytocin

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  • question_answer149) People recovering from Jong illness are often advised to include the alga Spirulina in their diet because it:

    A)
     makes the food easy to digest

    B)
     is rich in proteins

    C)
     has antibiotic properties

    D)
     restores the intestinal microflora

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  • question_answer150) Viroids have:

    A)
     single stranded RNA not enclosed by protein coat

    B)
     single stranded DNA not enclosed by protein coat

    C)
     double stranded DNA enclosed by protein coat

    D)
     double stranded RNA enclosed by protein coat

    View Answer play_arrow
  • question_answer151) In a dicotyledonous stem, the sequence of tissues from the outside to the inside is :

    A)
     phellem-pericycle-endodermis-phloem

    B)
     phellem-phloem-endodermis-pericycle

    C)
     phellem-endodermis-pericycle-phloem

    D)
     pericycle-phellem-endodermis-phloem

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  • question_answer152) Hill reaction occur in:

    A)
     high altitude plants

    B)
     total darkness

    C)
     absence of water

    D)
     presence of ferricyanide

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  • question_answer153) Which one of the following pairs is correctly matched?

    A)
     Rhizobium?Parasite in the roots of leguminous plants

    B)
     Mycon-hizae?Mineral uptake from soil

    C)
     Yeast?Production of biogas

    D)
     Myxomycetes? The disease ringworm

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  • question_answer154) Pollen grains are able to withstand extremes of temperature and dessication because their exine is composed of:

    A)
     cutin                    

    B)
           suberin                               

    C)
          sporopollenin   

    D)
           callose

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  • question_answer155) Which one of the genes present exclusively on the X-chromosome in humans is concerned with?

    A)
     Baldness

    B)
     Red-green colour blindness

    C)
     Facial hair/moustaches in males

    D)
     Night blindness

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  • question_answer156) Which one of the following statement with regard to embryonic development in humans is correct?

    A)
     Cleavage divisions bring about considerable increase in the mass of protoplasm

    B)
     In the second cleavage division, one of the two blastomeres usually divides a little sooner than the second

    C)
     With more cleavage divisions, the resultant blastomeres become larger and larger

    D)
     Cleavage division results in a hollow ball of cells called morula

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  • question_answer157) Plasmodesmata connections help in:

    A)
     cytoplasmic streaming

    B)
                    synchronous mitotic divisions

    C)
     locomotion of unicellular organisms

    D)
     movement of substances between cells

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  • question_answer158) The quiescent centre in root meristem serves as a:

    A)
     site for storage of food which is utilized during maturation

    B)
     reservoir of growth hormones

    C)
     reserve for replenishment of damaged cells of the meristem

    D)
     region for absorption of water

    View Answer play_arrow
  • question_answer159) Azolla is used as a biofertilizer because it:

    A)
     multiplies very fast to produce massive biomass

    B)
     has association of nitrogen-fixing 45. Rhizobium

    C)
     has association of nitrogen-fixing cyanobacteria

    D)
     has association of mycorrhiza

    View Answer play_arrow
  • question_answer160) The plant part which consists of two generations one within the other, is:

    A)
     germinated pollen grain              

    B)
     embryo

    C)
     unfertilized ovule

    D)
     Seed

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  • question_answer161) Assertion: Mast cells in the human body release excessive amounts of inflammatory chemicals which cause allergic reactions. Reason: Allergens in the environment on reaching human body stimulate mast cells in certain individuals

    A)
     1                                            

    B)
     2                            

    C)
           3                            

    D)
           4

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  • question_answer162) Assertion: Use of fertilizers greatly enhances crop productivity. Reason: Irrigation is very important in increasing crop productivity.

    A)
     1                            

    B)
           2                            

    C)
           3                            

    D)
           4

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  • question_answer163) Assertion: Smaller the organism higher the rate of metabolism per gram weight. Reason: The heart rate of a six month baby is much higher than that of an old person.

    A)
     1            

    B)
           2                            

    C)
     3                                            

    D)
     4

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  • question_answer164) Assertion: Bats and whales are classified mammals. Reason: Bats and whales have four chambered heart.

    A)
     1

    B)
                                           2                            

    C)
     3                            

    D)
           4

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  • question_answer165) Assertion: Severe Acute Respiratory Syndrom (SARS) originated in China. Reason: China is the most populated country of the world.

    A)
     1            

    B)
                           2                            

    C)
           3                            

    D)
           4

    View Answer play_arrow
  • question_answer166) Assertion: Organochlorine pesticides are organic compounds that have been chlorinated. Reason: Fenitrothion is one of the organochlorine pesticides.

    A)
     1

    B)
                                           2

    C)
           3

    D)
           4

    View Answer play_arrow
  • question_answer167) Assertion: Holoblastic cleavage with almost equal sized blastomeres is a characteristic of placental animals. Reason: Eggs of most mammals, including human, are of centrolecithal type.

    A)
     1

    B)
                           2                            

    C)
           3                            

    D)
           4

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  • question_answer168) Assertion: Inhabitants close to very busy airports are likely to experience health hazards. Reason: Sound level of jet aeroplanes usually exceeds 160 dB.

    A)
     1                            

    B)
           2                            

    C)
           3                            

    D)
           3

    View Answer play_arrow
  • question_answer169) Assertion: All birds, except the ones like koel (cuckoo) build nests for retiring and taking rest during night time (day time for nocturnal). Reason: Koel lays its eggs in the nests of tailor bird.

    A)
     1            

    B)
                           2

    C)
           3                            

    D)
           4

    View Answer play_arrow
  • question_answer170) Assertion: Old age is not an illness. It is a continuation of life with decreasing capacity for adaptation. Reason: Cessation of mitosis is a normal genetically programmed event.

    A)
     1                            

    B)
           2                            

    C)
           3

    D)
     4

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  • question_answer171) Assertion: A cell membrane shows fluid behavior. Reason: A membrane is a mosaic or composite of diverse lipids and proteins.

    A)
     1            

    B)
           2                                            

    C)
     3                            

    D)
           4

    View Answer play_arrow
  • question_answer172) Assertion: In plant tissue culture, somatic embryos can be induced from any plant cell. Reason: Any viable plant cell can differentiate into somatic embryos.

    A)
     1

    B)
           2                            

    C)
           3                            

    D)
           4

    View Answer play_arrow
  • question_answer173) Assertion: Rhoeo leaves contain anthocyanin pigments in epidermal cells. Reason: Anthocyanins are accessoiy photo synthetic pigments.

    A)
     1            

    B)
                           2                                            

    C)
     3                                            

    D)
     4

    View Answer play_arrow
  • question_answer174) Assertion: Water and mineral uptake by root hairs from the soil occurs through apoplast until it reaches endodermis. Reason: Casparian strips in endodermis are suberized.

    A)
     1                            

    B)
           2                            

    C)
           3                            

    D)
           4

    View Answer play_arrow
  • question_answer175) Assertion: Long distance flow of photo assimilates in plants occurs through sieve tubes. Reason: Mature sieve tubes have parietal cytoplasm and perforated sieve plates.

    A)
     1                            

    B)
           2                            

    C)
           3                            

    D)
           4

    View Answer play_arrow
  • question_answer176) Assertion: Many visitors to the hills suffer from skin and respiratory allergy problems. Reason: Conifer trees produce a large quantity of wind-borne pollen grains.

    A)
     1                            

    B)
           2                            

    C)
           3                            

    D)
           4

    View Answer play_arrow
  • question_answer177) Assertion: Yeasts such as Saccharomyces cerevisiae are used in baking industry. Reason: Carbon dioxide produced during fermentation causes bread dough to rise by thermal expansion.

    A)
     1                            

    B)
           2                            

    C)
           3                            

    D)
           4

    View Answer play_arrow
  • question_answer178) Assertion: In a food chain members of successive higher levels are fewer in number. Reason: Number of organisms at any trophic level depends upon the availability of organisms which serve as food at the lower level.

    A)
     1                            

    B)
           2                            

    C)
           3                            

    D)
           4

    View Answer play_arrow
  • question_answer179) Assertion:           Tropical rain forests are disappearing fast from developing countries such as India. Reason: No value is attached to these forests because these are poor in biodiversity.

    A)
     1                            

    B)
           2                            

    C)
           3            

    D)
           4

    View Answer play_arrow
  • question_answer180) Assertion: Leaf butterfly and stick insect show mimicry to dodge their enemies. Reason: Mimicry is a method to acquire body colour of blinding with the surrounding.

    A)
     1            

    B)
           2                            

    C)
           3                            

    D)
           4

    View Answer play_arrow
  • question_answer181) Euthanasia (mercy killing) was first legalized in:

    A)
     Switzerland                      

    B)
            Netherlands (Holland)

    C)
            France

    D)
            Italy

    View Answer play_arrow
  • question_answer182) Positron Emission Tomography (PET) is one of the best methods for functional imaging because:

    A)
     isotopes of basic body elements are used for imaging

    B)
            isotopes with long half-lives are used

    C)
            isotopes with short half-lives are used

    D)
            positrons are directly involved used in imaging

    View Answer play_arrow
  • question_answer183) Magnetic Resonance (MR) images are derived from the proton-bearing species present principally from water and:

    A)
     long alkane chain protons of the fatty acid moieties

    B)
            short alkane chain protons of the fatty acid moieties

    C)
            long alkene chain protons of the fatty acid moieties

    D)
            short alkene chain protons of the fatty acid moieties

    View Answer play_arrow
  • question_answer184) The following separation technique depends on the molecular size of the protein :

    A)
     chromatography on a carboxymethyl (CM) cellulose column

    B)
            iso-electric focusing

    C)
            gel filtration chromatography

    D)
            chromatography on a diethylaminoethyl (DEAE) cellulose column

    View Answer play_arrow
  • question_answer185) The approximate number of genes contained in the genome of Kalpana Chawla was:

    A)
     40, 000                

    B)
                            30, 000                

    C)
                            80, 000                

    D)
                            1, 00, 000

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  • question_answer186) In Internet what does http mean?

    A)
     High Transfer Text Protocol

    B)
            Highest Transfer Text Protocol

    C)
            Hyper Text Transfer Protocol

    D)
            Hyper Transfer Text Protocol

    View Answer play_arrow
  • question_answer187) The India-born US physicist who was awarded the Nobel Prize in Physics for his work on astrophysics is :

    A)
     H.G. Khorana

    B)
            Subrahmanyam Chandrashekhar

    C)
            Sivaramakrishna Chandrashekhar

    D)
            C.V. Raman

    View Answer play_arrow
  • question_answer188) Which German physicist invented the electron microscope which won him the 1986 Nobel Prize in Physics?

    A)
     E. Ruska                             

    B)
                            Vant Hoff          

    C)
            J.H.D. Jensen   

    D)
                            Eugene P. Wigner

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  • question_answer189) Who was the first Indian to be awarded the World Food Prize in 1987?

    A)
     M.S. Swaminathan

    B)
                            Sunderlal Bahuguna

    C)
            Anna Hazare

    D)
            B.R. Barwale

    View Answer play_arrow
  • question_answer190) Thanatology is the science that deals with :

    A)
     death in all its aspects

    B)
            solving paternity of child

    C)
            identification of living

    D)
            detection of lie

    View Answer play_arrow
  • question_answer191) The disease, Tetanus also known as?

    A)
     Gangrene          

    B)
                            Shingles                             

    C)
            Lockjaw                              

    D)
                            Whooping cough

    View Answer play_arrow
  • question_answer192) When seen from earth, which of the following planet eclipsed (crossed a cross) of the sun 7 May, 2003?

    A)
     Mercury                             

    B)
                            Uranus               

    C)
                            Saturn                 

    D)
                            Jupiter

    View Answer play_arrow
  • question_answer193) Israels Prime Minister Yitzhak Rabin won the Nobel prize for:

    A)
     Peace                  

    B)
                            Literature          

    C)
                            Chemistry         

    D)
                            Economics

    View Answer play_arrow
  • question_answer194) Who was the worlds first space tourist?

    A)
     Desmond Rickett

    B)
                           Dennis Tito       

    C)
                            Igor Kajlnikov   

    D)
                            Li Wang

    View Answer play_arrow
  • question_answer195) Which city was gifted to Charles II by the Portuguese when he married the sister of the King of Portugal in 1662?

    A)
     Bombay                             

    B)
                            Paris                    

    C)
            Lisoon                 

    D)
                            Castille

    View Answer play_arrow
  • question_answer196) How many ?World Cultural Heritage Sites? are in India?

    A)
     10                         

    B)
                            17                         

    C)
                            14                         

    D)
                            15

    View Answer play_arrow
  • question_answer197) Who is the mother of Bharat in the epic Ramayana ?

    A)
     Kaushalya          

    B)
                            Sumitra                              

    C)
            Urmila                 

    D)
                            Kaikayee

    View Answer play_arrow
  • question_answer198) Which of the Nawab of Bengal is supposed to be responsible for Black Hole Tragedy of | Calcutta (Kolkata)?

    A)
     MirJafer                             

    B)
                            Sirajuddaula     

    C)
                            Alivardi Khan    

    D)
                            Sarfaraj Khan                   

    View Answer play_arrow
  • question_answer199) Who among the following is known as Fuehrer?

    A)
     Stalin                   

    B)
                            Lenin                   

    C)
                            Hitler                   

    D)
                            Bismarck            

    View Answer play_arrow
  • question_answer200)                                 From which of the following places the international dateline crosses?

    A)
     Atlantic ocean 

    B)
                            Pacific ocean

    C)
            Greenwich        

    D)
                            Cape of Good Hope

    View Answer play_arrow

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