Solved papers for AIIMS AIIMS Solved Paper-2007

done AIIMS Solved Paper-2007 Total Questions - 200

• question_answer1) If the cold junction of a thermocouple is kept at \[{{0}^{\text{o}}}C\] and the hot junction is kept at \[{{T}^{o}}C,\] then the relation   between neutral temperature \[({{T}_{n}})\] and temperature of inversion \[({{T}_{i}})\] is
  A)
   \[v_{f}^{2}=v_{i}^{2}+\frac{2G{{m}_{e}}}{{{R}_{e}}}\left( 1+\frac{1}{10} \right)\]                            
  done clear
  B)
   \[v_{f}^{2}=v_{i}^{2}+\frac{2G{{m}_{e}}}{{{R}_{e}}}\left( 1-\frac{1}{10} \right)\]             
  done clear
  C)
         \[v_{f}^{2}=v_{i}^{2}+\frac{2Gm}{{{R}_{e}}}\left( 1-\frac{1}{10} \right)\]            
  done clear
  D)
         \[\mathbf{\vec{v}}\]
  done clear
  View Answer play_arrow

• question_answer2) In radioactive decay process, the negatively charged emitted \[\mathbf{\vec{B}}\]-particles are
  A)
   the electrons present inside the nucleus
  done clear
  B)
   the electrons produced as a result of the decay of neutrons inside the nucleus
  done clear
  C)
   the electrons produced as a result of collisions between atoms
  done clear
  D)
   the electrons orbiting around the nucleus
  done clear
  View Answer play_arrow

• question_answer3) A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane. Its coordinates at a later time are \[(\sqrt{3},\,3)\]. The path of the panicle makes with the x-axis an angle of
  A)
   \[{{30}^{\text{o}}}\]   
  done clear
  B)
                                         \[{{45}^{\text{o}}}\]                     
  done clear
  C)
   \[{{60}^{\text{o}}}\]                     
  done clear
  D)
         \[{{0}^{\text{o}}}\]
  done clear
  View Answer play_arrow

• question_answer4) The resistance of an ammeter is 13\[{{i}_{2}}>{{i}_{3}}>{{i}_{1}}\]. and its scale is graduated for a current upto 100 A. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto 750 A by this meter. The value of shunt resistance is
  A)
   20\[{{i}_{2}}>{{i}_{1}}>{{i}_{3}}\]         
  done clear
  B)
                         2\[{{i}_{1}}>{{i}_{2}}>{{i}_{3}}\]                               
  done clear
  C)
         0.2\[{{i}_{1}}>{{i}_{3}}>{{i}_{2}}\]           
  done clear
  D)
         2\[\sqrt{30}\]
  done clear
  View Answer play_arrow

• question_answer5) The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux \[\beta \] linked with the primary coil is given by \[\beta \], where \[k\Omega \] is in weber, t is time in second and \[\mu F\] is a constant, the output voltage across the secondary coil is
  A)
                           90V      
  done clear
  B)
                         120V                    
  done clear
  C)
         220V                    
  done clear
  D)
         30V
  done clear
  View Answer play_arrow

• question_answer6) A particle executes simple harmonic oscillation with an amplitude a. The period of oscillation is T. The minimum time taken by the particle to travel half of the amplitude from the equilibrium position is
  A)
                           \[(h=6.6\times {{10}^{-34}}J-s1cal=4.2J)\]           
  done clear
  B)
                         \[\overset{0}{\mathop{A}}\,\]                
  done clear
  C)
         \[R=\alpha \]                   
  done clear
  D)
         \[\alpha \]
  done clear
  View Answer play_arrow

• question_answer7) In the energy band diagram of a material shown below, the open circles and filled circles   denote   holes   and   electrons respectively. The material is a/an
  A)
   p-type semiconductor                 
  done clear
  B)
   insulator
  done clear
  C)
   metal
  done clear
  D)
   n-type semiconductor
  done clear
  View Answer play_arrow

• question_answer8) Two radioactive substances A and B have decay constants 5\[\mu k\] and \[\mu k\] respectively. At t = 0 they have the same number of nuclei. The ratio of number of nuclei of A to those of B will be \[{{\left( \frac{1}{e} \right)}^{2}}\] after a time interval
  A)
   \[\mu k\]           
  done clear
  B)
                         \[^{40}Ar\]                       
  done clear
  C)
   \[^{40}k\]                          
  done clear
  D)
         \[2.95\times {{10}^{11}}yr\]
  done clear
  View Answer play_arrow

• question_answer9) A charged particle (charge q) is moving in a circle of radius R with uniform speed v. The associated magnetic moment u is given by
  A)
  \[2.95\times {{10}^{9}}yr\]         
  done clear
  B)
                        \[4.37\times {{10}^{9}}yr\]                         
  done clear
  C)
  \[4.37\times {{10}^{11}}yr\]                       
  done clear
  D)
        \[\sigma \]
  done clear
  View Answer play_arrow

• question_answer10) A particle of mass m moves in the XY plane with a velocity v along the straight line AB. If the angular momentum of the particle with respect to origin o is \[\rho \] when it is at A and \[\lambda \] when it is at B, then
  A)
  \[\frac{\sigma }{\rho \lambda }\]
  done clear
  B)
                        \[\frac{\rho }{\sigma \lambda }\]
  done clear
  C)
   the relationship between \[\frac{\lambda }{\sigma \rho }\] and \[\rho \lambda \sigma \] depends upon the slope of the line AS
  done clear
  D)
  \[({{T}_{i}})\]
  done clear
  View Answer play_arrow

• question_answer11) A mass of 2.0 kg is put on a flat    pan attached to a vertical spring fixed on the ground as shown in the figure. The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes a simple harmonic motion. The spring constant is 200 N/m. What should be the minimum amplitude of the motion, so that the mass gets detached from the pan?(Take \[g=10\,m/{{s}^{2}}\])
  A)
   8.0 cm
  done clear
  B)
   10.0cm
  done clear
  C)
   Any value less than 12.0 cm
  done clear
  D)
   4.0cm
  done clear
  View Answer play_arrow

• question_answer12) A beam of electrons passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field ii switched off, and the same magnetic field is maintained, the electrons move
  A)
   in an elliptical orbit        
  done clear
  B)
   in a circular orbit
  done clear
  C)
   along a parabolic path  
  done clear
  D)
   along a straight line
  done clear
  View Answer play_arrow

• question_answer13) A common emitter amplifier has a voltage gain of 50, an input impedance of 100\[({{T}_{n}})\] and an output impedance of 200\[{{T}_{i}}-{{T}_{n}}={{T}_{n}}-T\]. The power gain of the amplifier is  
  A)
   500  
  done clear
  B)
                                         1000                     
  done clear
  C)
         1250                     
  done clear
  D)
         100
  done clear
  View Answer play_arrow

• question_answer14) The phase difference between the instantaneous velocity and acceleration of a particle executing simple harmonic motion is
  A)
   0.5\[{{T}_{i}}=2{{T}_{n}}-T\] 
  done clear
  B)
                                         \[{{0}^{o}}C\]                  
  done clear
  C)
         0.707\[{{T}_{n}}=\frac{{{T}_{i}}}{2}\]                     
  done clear
  D)
         zero
  done clear
  View Answer play_arrow

• question_answer15) Dimensions of resistance in an electrical circuit, in terms of dimension of mass M, of length L, of time T and of current I, would be
  A)
   \[{{T}_{n}}=2{{T}_{i}}\]
  done clear
  B)
         \[{{T}_{n}}={{T}_{i}}-T\]              
  done clear
  C)
         \[{{T}_{n}}={{T}_{i}}+T\]             
  done clear
  D)
         \[\beta \]
  done clear
  View Answer play_arrow

• question_answer16) Specific rotation of sugar solution is 0.01 Sl units. \[200\,kg\,-{{m}^{-3}}\] of impure sugar solution is taken in a polarimeter tube of length 0.25 m and an optical rotation of 0.4 rad is observed, The percentage of purity of sugar in the sample is
  A)
   11%  
  done clear
  B)
                                         20%                      
  done clear
  C)
   80% 
  done clear
  D)
         89%
  done clear
  View Answer play_arrow

• question_answer17) When a body falls in air, the resistance of air depends to a great extent on the shape of the body. Three different shapes are given. Identify the combination of air resistances which truly represents the physical situation? (The cross-sectional areas are the same).                                                  
  A)
   1 < 2 < 3  
  done clear
  B)
                         2 < 3 < 1              
  done clear
  C)
         3 < 2 < 1     
  done clear
  D)
         3 < 1 < 2
  done clear
  View Answer play_arrow

• question_answer18) A beam of parallel rays is brought to focus by a plano-convex lens. A thin concave lens of the same focal length is joined to the first lens. The effect of this is
  A)
   the focus shifts to infinity
  done clear
  B)
   the focal point shirts towards the lens by a small distance
  done clear
  C)
   the focal point shifts away from the lens by a small distance
  done clear
  D)
   the focus remains undisturbed
  done clear
  View Answer play_arrow

• question_answer19) Identify the wrong description of the below figures                
  A)
   1 represents far-sightedness
  done clear
  B)
   2 correction for short-sightedness
  done clear
  C)
   3 represents far-sightedness
  done clear
  D)
   4 correction for far-sightedness
  done clear
  View Answer play_arrow

• question_answer20) The figure below shows the plot of \[\Omega \] versus p for oxygen gas at two different temperatures. Read the following statements concerning the above curves (i)  The dotted line corresponds to the ideal gas behavior (ii) \[\Omega \] (iii) The value of\[\Omega \]at the point where the curves meet on the y-axis is the same for all gases. Which of the above statements is true?
  A)
   (i) only
  done clear
  B)
         (i) and (ii) only                 
  done clear
  C)
   All of the above
  done clear
  D)
         None of the above
  done clear
  View Answer play_arrow

• question_answer21) A ray of light is incident on the surface of a glass plate of thickness f. If the angle of incidence Q is small, the emerging ray would be displaced side ways by an amount [Take n = refractive index of glass)
  A)
   \[\Omega \]     
  done clear
  B)
         \[\Omega \]     
  done clear
  C)
         \[\phi \]             
  done clear
  D)
         \[\phi ={{\phi }_{0}}+4t\]
  done clear
  View Answer play_arrow

• question_answer22) An asteroid of mass m is approaching earth, initially at a distance of 10 \[\phi \] with speed \[{{\phi }_{0}}\]. It hits the earth with a speed \[\frac{T}{4}\] and \[\frac{T}{8}\], are radius and mass of earth), then
  A)
   \[\frac{T}{12}\]
  done clear
  B)
   \[\frac{T}{2}\]
  done clear
  C)
     \[\lambda \]
  done clear
  D)
     \[\lambda \]
  done clear
  View Answer play_arrow

• question_answer23) The figure shows three situations when an electron with velocity \[{{\left( \frac{1}{2} \right)}^{2}}\]travels through a uniform magnetic field \[\frac{1}{4\lambda }\]. In each case, what is the direction of magnetic force on the electron?                                      
  A)
   +ve z-axis, -ve x-axis, +ve y-axis
  done clear
  B)
   -ve z-axis, -ve x-axis and zero
  done clear
  C)
   +ve z-axis, +vey-axis and zero
  done clear
  D)
   -ve z-axis, +ve x-axis and zero
  done clear
  View Answer play_arrow

• question_answer24) In the figure, a proton moves a distance d in a uniform electric E as shown in the figure. Does the electric field do a positive or negative work on the proton? Does the electric potential energy of the proton increase or decrease?
  A)
   Negative, increase
  done clear
  B)
         Positive, decrease
  done clear
  C)
   Negative, decrease       
  done clear
  D)
   Positive, increase
  done clear
  View Answer play_arrow

• question_answer25) The figure shows three circuits with identical batteries, inductors and resistance. Rank the circuits according to the currents through the battery just after the switch is closed, greatest first.
  A)
   \[4\lambda \]
  done clear
  B)
                         \[2\lambda \]  
  done clear
  C)
         \[\frac{1}{2\lambda }\]
  done clear
  D)
         \[\frac{qvR}{2}\]
  done clear
  View Answer play_arrow

• question_answer26) The figure shows the path of a positively charged particle 1 through a rectangular region of uniform electric field as shown in the figure. What is the direction of electric field and the direction of deflection of particles 2, 3 and 4?
  A)
   Top; down, top, down
  done clear
  B)
   Top; down, down, top
  done clear
  C)
   Down; top, top, down
  done clear
  D)
   Down; top, down, down
  done clear
  View Answer play_arrow

• question_answer27) A spherical ball of mass 20 kg is stationary at the top of a hill of height 100 m. It roils down a smooth surface to the ground, then climbs up another hill of height 30 m and finally rolls down to a horizontal base at a height of 20 m above the ground. The velocity attained by the ball is
  A)
   40m/s  
  done clear
  B)
                         20 m/s
  done clear
  C)
   10 m/s                
  done clear
  D)
         10\[qv{{R}^{2}}\] m/s
  done clear
  View Answer play_arrow

• question_answer28) The energy spectrum of \[\frac{qv{{R}^{2}}}{2}\]-panicles [number N(E) as a function of \[qvR\]-energy E] emitted from a radioactive source is
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer29) A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of
  A)
   1000     
  done clear
  B)
                         10000                  
  done clear
  C)
         10                         
  done clear
  D)
         100
  done clear
  View Answer play_arrow

• question_answer30) A parallel plate capacitor is made by stacking n equally spaced plates connected alternatively. If the capacitance between any two adjacent plates is C, then the resultant capacitance is
  A)
   (n - 1)C   
  done clear
  B)
                         (n + 1)C              
  done clear
  C)
         C                           
  done clear
  D)
         n C
  done clear
  View Answer play_arrow

• question_answer31) In a detector, output circuit consists of R = 10\[{{L}_{A}}\] and C = 100\[{{L}_{B}}\]. The frequency of carrier signal it can detect is
  A)
   >>1MHz             
  done clear
  B)
         0.1 kHz
  done clear
  C)
         >>1GHz              
  done clear
  D)
         \[{{10}^{3}}\,Hz\]
  done clear
  View Answer play_arrow

• question_answer32) The graph showing the dependence of intensity of transmitted light on the angle between polariser and analyser, is
  A)
   
  done clear
  B)
  
  done clear
  C)
                 
  done clear
  D)
                 
  done clear
  View Answer play_arrow

• question_answer33)  A six pole generator with fixed field excitation developes an emf of 100 V, when operating at 1500 rpm. At what speed must it rotate to develop 120 V?
  A)
   1200 rpm                           
  done clear
  B)
   1800 rpm           
  done clear
  C)
         1500 rpm           
  done clear
  D)
         400 rpm
  done clear
  View Answer play_arrow

• question_answer34) Energy from the sun is received on earth at the rate of \[2\,\,cal\,per\,c{{m}^{2}}\] per min. If average wavelength of solar light be taken at 5500 A then how many photons are received on the earth per cm2 per min? \[{{L}_{A}}>{{L}_{B}}\]
  A)
   \[1.5\times {{10}^{13}}\]
  done clear
  B)
                         \[2.9\times {{10}^{13}}\]
  done clear
  C)
   \[2.3\times {{10}^{19}}\]            
  done clear
  D)
         \[1.75\,\times {{10}^{19}}\]
  done clear
  View Answer play_arrow

• question_answer35) An X-ray pulse of wavelength 4.9 \[{{L}_{A}}={{L}_{B}}\] is sent through a section of Wilson cloud chamber containing a super saturated gas, and tracks of photoelectron ejected from the gaseous atoms are observed. Two groups of tracks of lengths 1.40 cm and 2.02 cm are noted. If the range-energy relation for cloud chamber is given by \[R=\alpha \,E\] with \[{{L}_{B}}\] = 1 cm/keV, obtain the binding energies of the two levels from which electrons   are   emitted.   Given\[h=6.63\,\times {{10}^{-34}}\,J-s,\,\,e=1.6\times {{10}^{-19}}J\].
  A)
   0.52 keV                             
  done clear
  B)
   0.75 eV               
  done clear
  C)
                         0.52 eV               
  done clear
  D)
         0.75 keV
  done clear
  View Answer play_arrow

• question_answer36) A beam of 35.0 keV electrons strikes a molybdenum target, generating the X-rays. What is the cutoff wavelength?
  A)
   35.5 pm      
  done clear
  B)
                         40.0 pm              
  done clear
  C)
         15.95pm             
  done clear
  D)
         18.2pm
  done clear
  View Answer play_arrow

• question_answer37) We have seen that a gamma-ray dose of 3 Gy is lethal to half the people exposed to it. If the equivalent energy were absorbed as heat, what rise in body temperature would result?
  A)
   300\[{{L}_{A}}<{{L}_{B}}\]  
  done clear
  B)
                         700\[\Omega \]              
  done clear
  C)
         455\[\Omega \]              
  done clear
  D)
         390\[\pi \]
  done clear
  View Answer play_arrow

• question_answer38) Mass spectrometric analysis of potassium and argon atoms in a Moon rock sample shows that the ratio of the number of (stable) \[\pi \] atoms present to the number of (radioactive) \[\pi \] atoms is 10.3. Assume that all the argon atoms were produced by the decay of potassium atoms, with a half-life of \[1.25\times {{10}^{9}}\,yr\]. How old is the rock?
  A)
  \[[M{{L}^{2}}{{T}^{-3}}{{I}^{-1}}]\]
  done clear
  B)
                        \[[M{{L}^{2}}{{T}^{-2}}]\]            
  done clear
  C)
        \[[M{{L}^{2}}{{T}^{-1}}{{I}^{-1}}]\]          
  done clear
  D)
        \[[M{{L}^{2}}{{T}^{-3}}{{I}^{-2}}]\]
  done clear
  View Answer play_arrow

• question_answer39) A particle is thrown above, then correct v-t graph will be
  A)
  
  done clear
  B)
  
  done clear
  C)
                 
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer40) The speed (v) of ripples on the surface of water depends on surface tension (\[\frac{pV}{nT}\]), density (\[{{T}_{1}}>{{T}_{2}}\]) and wavelength (\[\frac{pV}{nT}\]). The square of speed (v) is proportional to
  A)
   \[t\theta n/(n+1)\]
  done clear
  B)
                                         \[t\theta (n-1)/n\]                        
  done clear
  C)
   \[t\theta n/(n-1)\]                        
  done clear
  D)
   \[{{i}_{1}}=0\]
  done clear
  View Answer play_arrow

• question_answer41) Assertion: A ladder is more apt to slip, when you are high up on it than when you just begin to climb. Reason: At the high up on a ladder, the torque is large and on climbing up the torque is small.
  A)
  If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer42) Assertion: Water in a U-tube executes SHM, the time period for mercury filled up to the same height in the U-tube be greater than that in case of water. Reason: The amplitude of an oscillating pendulum goes on increasing.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer43) Assertion: in taking into account the fact that any object which floats must have an average density less than that of water, during world war I, a number of cargo vessels are made of concrete. Reason: Concrete cargo vessels were filled with air.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer44) Assertion: A portable AM radio set must be kept horizontal to receive the signals properly. Reason: Radio waves are polarized electromagnetic waves
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer45) Assertion: If earth did not have atmosphere, its average surface temperature would be lower than what is now. Reason: Green house effect of the atmosphere would be absent if earth did not have atmosphere.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer46) Assertion: Light emitting diode (LED) emits spontaneous radiation. Reason: LED are forward biased p-n junctions.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer47) Assertion: Optical fibre communication has immunity to corss-talk. Reason: Optical interference between fibres is zero.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer48) Assertion: The knowledge of Albedo helps us to estimate the atmosphere of a planet. Reason: The clouds are not good reflectors of light.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer49) Assertion: The energy gap between the valence band and conduction band is greater in silicon than in germanium. Reason: Thermal energy produces fewer minority carriers in silicon than in germanium.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer50) Assertion: The pattern and position of fringes always remain same even after the introduction of transparent medium in a path of one of the slits. Reason: The central fringe is bright or dark does not depend upon the initial phase difference between the two coherence sources.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer51) Assertion: A biconvex lens of focal length 10 cm is split into two equal parts by a plane parallel to its principal axis. The focal length of the each part will be 20 cm. Reason: Focal length does not depend on the radii of curvature of two surfaces.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer52) Assertion: The acceleration of a body down a rough inclined plane is greater than the acceleration due to gravity. Reason: The body is able to slide on a inclined plane only when its acceleration is greater than acceleration due to gravity.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer53) Assertion: Transmission Electron Microscope (TEMJ provides two dimensional images. Reason: Scanning Electron Microscope (SEM) provides three dimensional images.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer54) Assertion: While measuring the thermal conductivity of liquid experimentally, the upper layer is kept hot and the lower layer is kept cold.          Reason: This avoids heating of liquid by convection.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer55) Assertion: The temperature of the surface of the sun is approximately 6000 K. If we take a big tens and focus the sun rays, we can produce a temperature of 8000 K. Reason: This highest temperature can be produced according to second law of thermodynamics.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer56) Assertion: Air pressure in a car tyre increases during driving. Reason: Absolute zero temperature is not zero energy temperature.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer57) Assertion: Ocean waves hitting a beach are always found to be nearly normal to the shore. Reason: Ocean waves hitting a beach are assumed as plane waves.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer58) Assertion: The lightning conductor at the top of high building has sharp pointed ends. Reason: The surface density of charge at sharp points is very high resulting in setting up of electric wind.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer59) Assertion: Two short magnets are placed on a cork which floats on water. The magnets are placed such that the axis of one produced bisects the axis of other at right angles. Then the cork has neither translational nor rotational motion. Reason: Net force on the cork is zero.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer60) Assertion: The speed of whirlwind in a tornado is alarmingly high. Reason: If no external torque acts on a body, its angular velocity remains conserved.
  A)
   If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
  done clear
  B)
   If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion
  done clear
  C)
   If Assertion is true but Reason is false
  done clear
  D)
   If both Assertion and Reason are false
  done clear
  View Answer play_arrow

• question_answer61) What is the product obtained when chlorine reacts with ethyl alcohol in the presence of \[NaOH\]?
  A)
   \[C{{H}_{3}}Cl\]              
  done clear
  B)
   \[{{C}_{2}}{{H}_{5}}Cl\]
  done clear
  C)
          \[CC{{l}_{3}}.CHO\]    
  done clear
  D)
          \[CHC{{l}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer62) The decreasing order of the stability of the ions \[C{{H}_{3}}-\underset{(I)}{\mathop{\overset{+}{\mathop{CH}}\,}}\,-C{{H}_{3}}\]          \[C{{H}_{3}}-\underset{(II)}{\mathop{\overset{+}{\mathop{CH}}\,}}\,-OC{{H}_{3}}\] \[C{{H}_{3}}-\underset{(III)}{\mathop{\overset{+}{\mathop{CH}}\,}}\,-COC{{H}_{3}}\]
  A)
   \[\text{I}>II>III\]
  done clear
  B)
          \[III>II>I\]                         
  done clear
  C)
   \[II>III>I\]
  done clear
  D)
          \[II>I>III\]
  done clear
  View Answer play_arrow

• question_answer63) The IUPAC name of \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{2}}OH\]
  A)
   1-hydroxy-4-methyl pentan-3-one
  done clear
  B)
   2-methyl-5-hydroxy pentan-3-one
  done clear
  C)
   4-methyl-3-oxopentan-l-ol
  done clear
  D)
   Hexan-l-ol-3-one
  done clear
  View Answer play_arrow

• question_answer64) Litharge is chemically
  A)
   \[PbO\]              
  done clear
  B)
          \[Pb{{O}_{2}}\]               
  done clear
  C)
          \[P{{b}_{3}}{{O}_{4}}\]                
  done clear
  D)
          \[Pb{{(C{{H}_{3}}COO)}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer65) The    half-life    for    the    reaction \[{{N}_{2}}{{O}_{5}}\xrightarrow{{}}2N{{O}_{2}}+\frac{1}{2}{{O}_{2}}\] is \[2.4h\] at STP. Starting with 10.8 g of \[{{N}_{2}}{{O}_{5}}\] how much oxygen will be obtained after a period of \[9.6h\]?
  A)
   \[1.5L\]                               
  done clear
  B)
   \[3.36L\]            
  done clear
  C)
          \[1.05L\]            
  done clear
  D)
          \[0.07L\]
  done clear
  View Answer play_arrow

• question_answer66) Planar structure is shown by
  A)
   \[CO_{3}^{2-}\]              
  done clear
  B)
          \[BC{{l}_{3}}\] 
  done clear
  C)
          \[N{{(Si{{H}_{3}})}_{3}}\]     
  done clear
  D)
          all of these
  done clear
  View Answer play_arrow

• question_answer67) The correct order of basic strength is
  A)
   \[{{H}_{2}}O<O{{H}^{-}}<C{{H}_{3}}OH<C{{H}_{3}}{{O}^{-}}\]
  done clear
  B)
   \[C{{H}_{3}}OH<{{H}_{2}}O<C{{H}_{3}}{{O}^{-}}<O{{H}^{-}}\]
  done clear
  C)
   \[{{H}_{2}}O<C{{H}_{3}}OH<O{{H}^{-}}<C{{H}_{3}}{{O}^{-}}\]
  done clear
  D)
   \[O{{H}^{-}}<{{H}_{2}}O<C{{H}_{3}}{{O}^{-}}<C{{H}_{3}}OH\]
  done clear
  View Answer play_arrow

• question_answer68) If \[AgI\] crystallizes in zinc blende structure with \[{{I}^{-}}\] ions at lattice points. What fraction of tetrahedral voids is occupied by \[A{{g}^{+}}\] ions?
  A)
   25%                      
  done clear
  B)
          50%                      
  done clear
  C)
   100%                   
  done clear
  D)
          75%
  done clear
  View Answer play_arrow

• question_answer69) The density of air is 0.001293 g/cc at STP. Its vapour density is
  A)
   \[0.001293\]     
  done clear
  B)
          \[8.2786\]          
  done clear
  C)
          \[14.49\]            
  done clear
  D)
          \[6.2706\]
  done clear
  View Answer play_arrow

• question_answer70) The solubility product of \[A{{s}_{2}}{{O}_{3}}\] is \[10.8\times {{10}^{-9}}.\] It is 50% dissociated in saturated solution. The solubility of salt is
  A)
   \[{{10}^{-2}}\]                 
  done clear
  B)
          \[2\times {{10}^{-2}}\] 
  done clear
  C)
          \[5\times {{10}^{-3}}\]                 
  done clear
  D)
          \[5.4\times {{10}^{-9}}\]
  done clear
  View Answer play_arrow

• question_answer71) The temperature dependence of rate constant (k) of a chemical reaction is written in terms of Arrhenius equation \[k=A{{e}^{-{{E}_{a}}/RT}}\]. Activation energy \[({{E}_{a}})\] of the reaction can be calculated by ploting
  A)
   \[\log \,k\,vs\,T\]     
  done clear
  B)
          \[\log \,k\,vs\,\frac{1}{T}\]        
  done clear
  C)
          \[k\,\,vs\,\,\,T\]        
  done clear
  D)
          \[k\,\,vs\,\,\,\frac{1}{\log T}\]
  done clear
  View Answer play_arrow

• question_answer72) Which one of the following is the true covalent oxide of iodine?
  A)
   \[{{I}_{2}}{{O}_{4}}\]                    
  done clear
  B)
          \[{{I}_{2}}{{O}_{5}}\]    
  done clear
  C)
          \[{{I}_{2}}{{O}_{7}}\]                    
  done clear
  D)
          \[{{I}_{2}}{{O}_{9}}\]
  done clear
  View Answer play_arrow

• question_answer73) When \[{{H}_{2}}S\] gas is passed through the \[HCl\] containing aqueous solution of \[CuC{{l}_{2}},HgC{{l}_{2}},\]\[BiC{{l}_{3}}\]and \[CoC{{l}_{2}},\], it does not precipitate out
  A)
   \[CuS\]     
  done clear
  B)
                          \[HgS\]               
  done clear
  C)
          \[B{{i}_{2}}{{S}_{3}}\]                   
  done clear
  D)
          \[CoS\]
  done clear
  View Answer play_arrow

• question_answer74) The species having tetrahedral shape is
  A)
   \[{{[PdC{{l}_{4}}]}^{2-}}\]   
  done clear
  B)
          \[{{[Ni{{(CN)}_{4}}]}^{2-}}\]
  done clear
  C)
                          \[Pd{{(CN)}_{4}}{{]}^{3-}}\]   
  done clear
  D)
          \[{{[NiC{{l}_{4}}]}^{2-}}\]
  done clear
  View Answer play_arrow

• question_answer75) The basic character of the transition metal monoxide follows the order
  A)
   \[VO>CrO>TiO>FeO\]
  done clear
  B)
   \[CrO>VO>FeO>TiO\]
  done clear
  C)
   \[TiO>FeO>VO>CrO\]
  done clear
  D)
   \[TiO>VO>CrO>FeO\]
  done clear
  View Answer play_arrow

• question_answer76) Which of the following does not exist as a Zwitter ion?
  A)
   Glycine
  done clear
  B)
   Glutamic acid
  done clear
  C)
   Sulphanilic acid                       
  done clear
  D)
   p-aminobenzoic acid
  done clear
  View Answer play_arrow

• question_answer77) The hydrocarbon which does decolourise alkaline \[KMn{{O}_{4}}\] solution and also does not give any precipitate with ammoniacal silver nitrate is
  A)
   benzene            
  done clear
  B)
          acetylene          
  done clear
  C)
          propyne             
  done clear
  D)
          butyne-1
  done clear
  View Answer play_arrow

• question_answer78) Plexiglass is a commercial name of
  A)
   glyptal
  done clear
  B)
   polyacrylo nitrile
  done clear
  C)
   polymethyl methacrylate
  done clear
  D)
   polyethyl acrylate
  done clear
  View Answer play_arrow

• question_answer79) One mole of methanol when burnt in \[{{O}_{2}}\], gives out  \[723\text{ }kJ\text{ }mo{{l}^{-1}}\]heat. If one mole of \[{{O}_{2}}\] is used, what will be the amount of heat evolved?
  A)
   723 kJ                  
  done clear
  B)
          924 kJ  
  done clear
  C)
          482 kJ                  
  done clear
  D)
          241 kJ
  done clear
  View Answer play_arrow

• question_answer80) The enthalpy of hydrogenation of cyclohexene is \[-119.5kJ\,mo{{l}^{-1}}.\]If resonance energy of benzene is \[-150.4\text{ }kJ\,mo{{l}^{-1}},\]its enthalpy of hydrogenation would be
  A)
   \[-208.1\,kJ\,\,mo{{l}^{-1}}\]
  done clear
  B)
   \[-269.9\text{ }kJ\text{ }mo{{l}^{-1}}\]
  done clear
  C)
   \[-358.5\text{ }kJ\,\,mo{{l}^{-1}}\]
  done clear
  D)
   \[-508.9\text{ }kJ\,\,mo{{l}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer81) A current of 96.5 A is passed for 18 min between nickel electrodes in 500 mL solution of \[2M\,\,Ni{{(N{{O}_{3}})}_{2}}.\]The molarity of solution after electrolysis would be
  A)
   \[0.46\text{ }M\]           
  done clear
  B)
          \[0.92\text{ }M\]           
  done clear
  C)
   \[0.625\text{ }M\]     
  done clear
  D)
          \[1.25\text{ }M\]
  done clear
  View Answer play_arrow

• question_answer82) Hydrogen can be prepared by the action of dil \[{{H}_{2}}S{{O}_{4}}\] on
  A)
   copper                
  done clear
  B)
          iron                      
  done clear
  C)
   lead                     
  done clear
  D)
          mercury
  done clear
  View Answer play_arrow

• question_answer83) Supercritical \[C{{O}_{2}}\] is used as
  A)
   dry ice
  done clear
  B)
   fire fighting
  done clear
  C)
   a solvent for extraction of organic compounds from natural sources
  done clear
  D)
   a highly inert medium for carrying out various reactions
  done clear
  View Answer play_arrow

• question_answer84) The standard emf of a galvanic cell involving cell reaction with n = 2 found to be 0.295 V at \[{{25}^{o}}C\]. The equilibrium constant of the reaction would be
  A)
   \[2\times {{10}^{11}}\]                                
  done clear
  B)
   \[4\times {{10}^{12}}\]
  done clear
  C)
          \[1\times {{10}^{2}}\]                  
  done clear
  D)
          \[1\times {{10}^{10}}\]
  done clear
  View Answer play_arrow

• question_answer85)  The type of isomerism observed in urea molecule is
  A)
   chain                   
  done clear
  B)
          position              
  done clear
  C)
          geometrical   
  done clear
  D)
          tautomerism
  done clear
  View Answer play_arrow

• question_answer86) The compound X in the reaction  is
  A)
     
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
                 
  done clear
  View Answer play_arrow

• question_answer87) The correct order of ease of dehydration of following is
  A)
   \[I>II>III\]      
  done clear
  B)
          \[III>II>I\]         
  done clear
  C)
          \[I>III>II\]
  done clear
  D)
          \[III>I>II\]
  done clear
  View Answer play_arrow

• question_answer88) The major product of the following reaction is \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,}}\,}}\,-C{{H}_{2}}-OH\xrightarrow{{{H}_{2}}S{{O}_{4}}}\]
  A)
   \[{{(C{{H}_{3}})}_{2}}C=C{{H}_{2}}\]
  done clear
  B)
   butan-2-one
  done clear
  C)
   \[{{(C{{H}_{3}})}_{2}}\overset{OH}{\mathop{\overset{|}{\mathop{C}}\,}}\,=CHO\]
  done clear
  D)
   isobutyraldehyde
  done clear
  View Answer play_arrow

• question_answer89) Methyl acetate and ethyl acetate can be distinguished by
  A)
   hot alkaline \[KMn{{O}_{4}}\]
  done clear
  B)
   neutral \[FeC{{l}_{3}}\]
  done clear
  C)
   iodoform test
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer90) An aliphatic amine on treatment with alcoholic carbon disulphide and mercuric chloride forms ethyl isothiocyanate, the reaction is known as
  A)
   Hofmanns reaction
  done clear
  B)
   Hofmanns rearrangement
  done clear
  C)
   Hofmanns mustard oil reaction           
  done clear
  D)
   Hofmanns bromamide degradation reaction
  done clear
  View Answer play_arrow

• question_answer91) Protein can be denatured by
  A)
   carbon dioxide
  done clear
  B)
   carbon monoxide
  done clear
  C)
   heat
  done clear
  D)
   oxygen
  done clear
  View Answer play_arrow

• question_answer92)  The compound is used as
  A)
   antiseptic          
  done clear
  B)
   antibiotic           
  done clear
  C)
          analgesic      
  done clear
  D)
          pesticides
  done clear
  View Answer play_arrow

• question_answer93) With \[{{K}_{4}}[Fe{{(CN)}_{6}}],C{{u}^{2+}}\] ions gives
  A)
   a blue ppt.
  done clear
  B)
   a bluish green ppt
  done clear
  C)
   a blood red ppt.
  done clear
  D)
   a reddish brown ppt.
  done clear
  View Answer play_arrow

• question_answer94) When electric discharge is passed through neon at low pressure, the colour of the glow is
  A)
   red                                       
  done clear
  B)
   green  
  done clear
  C)
          yellow                 
  done clear
  D)
          orange
  done clear
  View Answer play_arrow

• question_answer95) According to the adsorption theory of catalysis, the speed of the reaction increases because
  A)
   adsorption produces heat which increases the speed of the reaction
  done clear
  B)
   adsorption lowers the activation energy of the reaction
  done clear
  C)
   the concentration of reactant molecules at the active centres of the catalyst becomes high due to adsorption
  done clear
  D)
   in the process of adsorption, the activation energy of the molecules become large
  done clear
  View Answer play_arrow

• question_answer96) At the high pressure, Langmuir adsorption isotherm takes the form
  A)
   \[\frac{x}{m}=\frac{aP}{1+bP}\]    
  done clear
  B)
          \[\frac{x}{m}=\frac{a}{b}\]        
  done clear
  C)
          \[\frac{x}{m}=aP\]       
  done clear
  D)
          \[\frac{x}{m}=\frac{b}{a}+\frac{1}{aP}\]
  done clear
  View Answer play_arrow

• question_answer97) A solution containing \[10g\] per \[d{{m}^{3}}\] of urea(molecular mass \[=60g\,mo{{l}^{-1}}\]) is isotonic with a 5% solution of a non volatile solute. The molecular mass of this non volatile solute is
  A)
   \[300\,g\,mo{{l}^{-1}}\]
  done clear
  B)
   \[350\text{ }g\text{ }mo{{l}^{-1}}\]
  done clear
  C)
                          \[200g\,mo{{l}^{-1}}\]   
  done clear
  D)
          \[250g\,mo{{l}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer98) Ethylene oxide when treated with Grignard reagent yield
  A)
   secondary alcohol
  done clear
  B)
   tertiary alcohol
  done clear
  C)
   cyclopropyi alcohol
  done clear
  D)
   primary alcohol
  done clear
  View Answer play_arrow

• question_answer99) The "saponification value" of an oil or fat is measured in term of
  A)
   \[N{{H}_{4}}OH\]     
  done clear
  B)
          \[NaOH\]           
  done clear
  C)
          \[KOH\]              
  done clear
  D)
          \[{{C}_{6}}{{H}_{5}}OH\]
  done clear
  View Answer play_arrow

• question_answer100) Rayon is
  A)
   natural silk
  done clear
  B)
   artificial silk
  done clear
  C)
   natural plastic or rubber
  done clear
  D)
   synthetic plastic
  done clear
  View Answer play_arrow

• question_answer101) Assertion: \[H-S-H\] bond angle in \[{{H}_{2}}S\] is closer to \[{{90}^{o}}\] but \[H-O-H\] bond angle in \[{{H}_{2}}O\] is \[{{104.5}^{o}}\]. Reason: \[lP-lP\] repulsion is stronger in \[{{H}_{2}}S\] than in \[{{H}_{2}}O\].
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer102) Assertion: Average life of a radioactive element is that period in which 63% of it is decayed. Reason: Average life \[\tau =1.44{{t}_{1/2}}\].
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer103) Assertion: At high pressure, the compression factor Z is \[\left( 1+\frac{Pb}{RT} \right)\]. Reason: At high pressure van der Waals equation is modified as \[P(V-b)=RT\].
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer104) Assertion: Viscocity of a liquid decreases on increasing the temperature. Reason: Evaporation of liquid increases with rise in temperature.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer105) Assertion: On mixing  \[500\text{ }mL\] of \[{{10}^{-6}}M\,C{{a}^{2+}}\] ion and  \[500\text{ }mL\] of \[{{10}^{-6}}M\,{{F}^{-1}}\] ion, the precipitate of \[Ca{{F}_{2}}\] will be obtained. \[{{K}_{sp}}(Ca{{F}_{2}}={{10}^{-18}})\] Reason: If \[{{K}_{sp}}\] is greater than ionic product, a precipitate will develop.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer106) Assertion: The conversion of fresh precipitate to colloidal state is called peptization. Reason: It is caused by addition of common ions.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer107) Assertion: For the combustion of methane, \[\Delta E>\Delta H\] Reason: \[\Delta H\] is related by \[\Delta E\] by the expression. \[\Delta H=\Delta E+\Delta nRT\]
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer108) Assertion: According to Kohlrausch law the molar conductivity of a strong electrolyte at infinite dilution is sum of molar conductivities of its ions. Reason: The current carried by cation and anion is always equal.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer109) Assertion: \[C-H\] bond in ethyne is shorter than \[C-H\] bonds in ethene. Reason: Carbon atom in ethene is sp hybridised while it is \[s{{p}^{2}}\] in ethyne.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer110) Assertion: Mercury vapour is shining silvery in appearance. Reason: Mercury is a metal with shining silvery appearance.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer111) Assertion: \[{{H}_{3}}P{{O}_{3}}\] is a dibasic acid. Reason: There are two H atoms directly attached to P.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer112) Assertion: \[F-F\] bond in \[{{F}^{2}}\] molecule is strong. Reason: F atom is small in size.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer113) Assertion: In the electrolysis of aqueous \[NaCl\], \[Na\] is preferentially discharged at mercury cathode forming sodium amalgam. Reason: It is due to the fact that hydrogen has a high over voltage at mercury cathode.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer114) Assertion: \[C{{u}^{2+}}\] and \[C{{d}^{2+}}\] are separated by first adding \[KCN\] solution and then passing \[{{H}_{2}}S\] gas. Reason: \[KCN\] reduces \[C{{u}^{2+}}\] to \[C{{u}^{+}}\] and form a complex with it.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer115) Assertion: Amines are more basic than esters and ethers. Reason: Nitrogen is less electronegative than oxygen. It is in better position to accommodate the positive charge on the proton.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer116) Assertion: Alcohols have higher boiling points than ethers of comparable molecular masses. Reason: Alcohols and ethers are isomeric in nature.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer117) Assertion: During test for nitrogen with Lassaigne extract on adding \[FeC{{l}_{3}}\] solution sometimes a red precipitate is obtained. Reason: Sulphur is also present.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer118) Assertion: \[NaCl\] is precipitated when \[HCl\] gas is passed in a saturated solution of \[NaCl\]. Reason: \[HCl\] is strong acid.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer119) Assertion: Chlorine has higher electron affinity than fluorine. Reason: Chlorine is a poor oxidising than fluorine.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer120) Assertion: The hydrolysis of methyl acetate by dil. \[HCl\] is a pseudo first order reaction. Reason: \[HCl\] acts as a catalyst for the hydrolysis.
  A)
   If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  done clear
  B)
   If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  done clear
  C)
   If Assertion is true but Reason is false.
  done clear
  D)
   If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer121) An artificial pace-maker is implanted subcutaneously and connected to the heart in patients
  A)
  having 90% blockage of the three main coronary arteries
  done clear
  B)
  having a very high blood pressure
  done clear
  C)
  with irregularity in the heart rhythm
  done clear
  D)
  suffering from arteriosclerosis
  done clear
  View Answer play_arrow

• question_answer122) E. coli about to replicate was placed in a medium containing radioactive thynidine for five minutes. Then it was made to replicate in a normal medium. Which of the following observation will be correct?
  A)
  Both the strands of DNA will be radioactive
  done clear
  B)
  One strand radioactive
  done clear
  C)
  Each strand half radioactive
  done clear
  D)
  None is ladioactive
  done clear
  View Answer play_arrow

• question_answer123) Plasmids are suitable vectors for gene cloning because
  A)
  these are small circular DNA molecules which can integrate with host chromosomal DNA
  done clear
  B)
  these are small circular DNA molecules with their own replication origin site
  done clear
  C)
  these can shuttle between prokaryotic and eukaryotic cells
  done clear
  D)
  these often carry antibiotic resistance genes
  done clear
  View Answer play_arrow

• question_answer124) In a given plant, red colour (R) of fruits is dominant over white fruit (r): and tallness (T) is dominant over dwarfness (t). If a plant with genotype RRTt is crossed with a plant of genotype rrtt, what will be the percentage of tall plants with red fruits in the next generation?
  A)
  100%                                    
  done clear
  B)
  25%                       
  done clear
  C)
  50%                       
  done clear
  D)
        75%
  done clear
  View Answer play_arrow

• question_answer125) An action potential in the nerve fibre is produced when positive and negative charges on the outside and the inside of the axon membrane are reversed, because
  A)
  More potassium ions enter the axon as compared to sodium ions leaving it
  done clear
  B)
  more sodium ions enter the axon as compared to potassium ions leaving it
  done clear
  C)
  all potassium ions leave the axon
  done clear
  D)
  all sodium ions enter the axon
  done clear
  View Answer play_arrow

• question_answer126) Patients suffering from cholera are given a saline drip because
  A)
  \[N{{a}^{+}}\] ions help in stopping nerve impulses and hence, sensation of pain
  done clear
  B)
  \[N{{a}^{+}}\] ions help in the retention of water in the body tissues
  done clear
  C)
  \[NaCl\] is an important component of energy supply
  done clear
  D)
  \[NaCl\] furnishes mot of the fuel required for cellular activity
  done clear
  View Answer play_arrow

• question_answer127) Choose the correct sequence of stages of growth curve for bacetria
  A)
  lag, log, stationary, decline phase
  done clear
  B)
  lag, log, stationary phase
  done clear
  C)
  stationary, lag, log, decline phase
  done clear
  D)
  decline, lag, log phase
  done clear
  View Answer play_arrow

• question_answer128) Which of the following statement is true?
  A)
  Vessels are multicellular and with wide lumen
  done clear
  B)
  Tracheids are multicellular and with narrow lumen
  done clear
  C)
  Vessels are unicellular and with narrow lumen
  done clear
  D)
  Tracheids are unicellular and with wide lumen
  done clear
  View Answer play_arrow

• question_answer129) During translation initiation in prokaryotes, a GTP molecule is needed in
  A)
  association of 30S, mRNA with formyl-met-tRNA
  done clear
  B)
  association of 50S subunit of ribosome with initiation complex
  done clear
  C)
  formation of formyl-met-tRNA
  done clear
  D)
  binding of 30 subunit of ribosome with mRNA
  done clear
  View Answer play_arrow

• question_answer130) Downs syndrome is caused by an extra copy of chromosome number 21. What percentage of offspring produced by an affected mother and a normal father would be affected by this disorder?
  A)
  50%                                       
  done clear
  B)
  25%                       
  done clear
  C)
  100%                    
  done clear
  D)
        75%
  done clear
  View Answer play_arrow

• question_answer131) Nicotiana sylvestris flowers only during long days and N. tobacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross fertilized to produce self-fertile offspring. What is the best reason for considering N. sylvestris and N. tobacum to be separate species?
  A)
  They are physiologically distinct
  done clear
  B)
  They are morphologically distinct
  done clear
  C)
  They cannot interbreed in nature
  done clear
  D)
                      They are reproductively distinct
  done clear
  View Answer play_arrow

• question_answer132) What is a keystone species?
  A)
  A species which makes up only a small proportion of the total biomass of a community, yet has a huge impact on the communitys organization and survival
  done clear
  B)
  A common species that has plenty of biomass, yet has a fairly low impact on the communitys organization
  done clear
  C)
  A rare species that has minimal impact on the biomass and on other species in the community
  done clear
  D)
  A dominant species that constitutes a large proportion of the biomass and which affect many other species
  done clear
  View Answer play_arrow

• question_answer133) Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary period for different groups of organisms, includes
  A)
  study of carbohydrates/proteins in fossils
  done clear
  B)
  study of the conditions of fossilization
  done clear
  C)
  Electron Spin Resonance (ESR) and fossil DNA
  done clear
  D)
  study of carbohydrates/proteins in rocks
  done clear
  View Answer play_arrow

• question_answer134) The telomeres of eukaryotic chromosomes consists of short sequences of
  A)
  thymine rich repeats
  done clear
  B)
  cytosine rich repeats
  done clear
  C)
  adenine rich repeats
  done clear
  D)
  guanine rich repeats
  done clear
  View Answer play_arrow

• question_answer135) Damage to thymus in a child may lead to
  A)
  a reduction in haemoglobin content of blood
  done clear
  B)
  a reduction in stem cell production
  done clear
  C)
  loss of antibody mediated immunity
  done clear
  D)
  loss of cell mediated immunity
  done clear
  View Answer play_arrow

• question_answer136) Auxospores and hormocysts are formed, respectively, by
  A)
  several diatoms and a few cyanobacteria
  done clear
  B)
  several cyanobacteria and several diatoms
  done clear
  C)
  some diatoms and several cyanobacteria
  done clear
  D)
  some cyanobacteria and many diatoms
  done clear
  View Answer play_arrow

• question_answer137) Photosynthetic Active Radiation (PAR) has the following range of wavelengths
  A)
  400 - 700 nm      
  done clear
  B)
        450 - 950 nm      
  done clear
  C)
        340 - 450 nm      
  done clear
  D)
        500 - 600 nm
  done clear
  View Answer play_arrow

• question_answer138) Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield?
  A)
  Frequent irrigation of the crop
  done clear
  B)
  Treatment of the plants with cytokinins along with a small dose of nitrogenous fertilizer
  done clear
  C)
  Removal of all yellow leaves and spraying the remaining green leaves with 2, 4, 5-trichlorophenoxy acetic acid
  done clear
  D)
  Application of iron and magnesium to promote synthesis of chlorophyll
  done clear
  View Answer play_arrow

• question_answer139) In maize, hybrid vigour is exploited by
  A)
  bombarding the seeds with DNA
  done clear
  B)
  crossing of two inbred parental lines
  done clear
  C)
  harvesting seeds from the most productive plants
  done clear
  D)
  inducing mutations
  done clear
  View Answer play_arrow

• question_answer140) 

  Match the following
  A.	tRNA	1.	Linking of amino acids
  B.	mRNA	2.	Transfer of genetic information
  C.	rRNA	3.	Nucleolar organizing region
  D.	Peptidyltransferase	4.	Transfer of amino from cytoplasm of ribosome

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

• question_answer141) Hybridomas are the fusion product of
  A)
  normal antibody producing cell with myeloma
  done clear
  B)
  abnormal antibody producing cell with myeloma
  done clear
  C)
  sex cells with myeloma
  done clear
  D)
  bone cells with myeloma
  done clear
  View Answer play_arrow

• question_answer142) 

  Match the following ovular structure with post fertilization structure and select the correct alternative
  A.	Ovule	1.	Endosperm
  B.	Funiculus	2.	Aril
  C.	Nucellus	3.	Seed
  D.	Polar nuclei	4.	Perisperm

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

• question_answer143) Arrange the following in the order of increasing volume (1) Tidal volume (2) Residual volume (3) Expiratory reserve volume (4) Vital capacity
  A)
  1 < 2 < 3 < 4
  done clear
  B)
  1 < 3 < 2 < 4
  done clear
  C)
  1 < 4 < 3 < 2
  done clear
  D)
  1 < 4 < 2 < 3
  done clear
  View Answer play_arrow

• question_answer144) On the basis of symptoms of chlorosis in leaves a student inferred that this was due to deficiency of nitrogen. The inference could be correct only if we assume that yellowing of leaves appeared first in
  A)
  old leaves
  done clear
  B)
  young leaves
  done clear
  C)
  young leaves followed by mature leaves
  done clear
  D)
  mature leaves followed by young leaves
  done clear
  View Answer play_arrow

• question_answer145) What is common among silver fish, scorpion, crab and honey bee?
  A)
  Compound eyes              
  done clear
  B)
        Poison glands   
  done clear
  C)
        Jointed appendages      
  done clear
  D)
  Metamorphosis
  done clear
  View Answer play_arrow

• question_answer146) Diphtheria is caused by
  A)
  poisons released by living bacterial cells into the host tissue
  done clear
  B)
  poisons released from dead bacterial cells into the host tissue
  done clear
  C)
  poisons released by virus into the host tissues
  done clear
  D)
  excessive immune response by the hosts body
  done clear
  View Answer play_arrow

• question_answer147) In the developmental history of mammalian heart, it is observed that it passes through a two-chambered fish-like heart, three chambered frog-like heart and finally four-chambered stage. To which hypothesis can this above cited statement by approximated?
  A)
  Biogenetic law
  done clear
  B)
  Hardy-Weinberg law
  done clear
  C)
  Lamarcks principle
  done clear
  D)
  Mendelian principles
  done clear
  View Answer play_arrow

• question_answer148) A sewage treatment process in which a portion of the decomposer bacteria present in the waste is recycled into the beginning of the process, is called
  A)
  cyclic treatment               
  done clear
  B)
        primary treatment
  done clear
  C)
  activated sludge treatment
  done clear
  D)
  tertiary treatment
  done clear
  View Answer play_arrow

• question_answer149) Cellulose, the most important constituent of plant cell wall is made up of
  A)
  branched chain of glucose molecules linked by \[\alpha \], 1, 6 glycosidic bond at the site of branching
  done clear
  B)
  unbranched chain of glucose molecules linked by \[\alpha \], 1, 4, glycosidic bond
  done clear
  C)
  branched chain of glucose molecules linked by \[\beta \], 1, 4 glycosidic bond in straight chain and \[\alpha \],1, 6 glycosidic bond at the site of branching
  done clear
  D)
  unbranched chain of glucose molecules linked by (\[\beta \], 1, 4 glycosidic bond
  done clear
  View Answer play_arrow

• question_answer150) 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.
  done clear
  B)
  Blood sugar (fasting) -70-100 mg/100 mL
  done clear
  C)
  Total blood volume -5-6
  done clear
  D)
  ESR in Wintrobe method-9-15 mm in males and 20-34 mm in females
  done clear
  View Answer play_arrow

• question_answer151) Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to
  A)
  vitamin A toxicity
  done clear
  B)
  kidney stones
  done clear
  C)
  hypercholesterolemia
  done clear
  D)
  urine laden with ketone bodies
  done clear
  View Answer play_arrow

• question_answer152) Which one of the following pairs is correctly matched?
  A)
  Rhizobium-Parasite in the roots of leguminous plants
  done clear
  B)
  Mycorrhizae-Mineral uptake from soil
  done clear
  C)
  Yeast-Production of biogas
  done clear
  D)
  Myxomycetes-The disease ringworm
  done clear
  View Answer play_arrow

• question_answer153) Which one of the following is correctly matched regarding an Institute and its location
  A)
  National Institute of Virology-Pune
  done clear
  B)
  National Institute of Communicable Disease-Lucknow
  done clear
  C)
  Central Drug Research Institute-Kasauli
  done clear
  D)
  National Institute of Nutrition-Mumbai
  done clear
  View Answer play_arrow

• question_answer154) A lake with an inflow of domestic sewage rich in organic waste may result in
  A)
  drying of the lake very soon due to algal bloom
  done clear
  B)
  an increased production of fish due to lot of nutrients
  done clear
  C)
  death of fish due to lack of oxygen
  done clear
  D)
  increased population of aquatic food web organisms
  done clear
  View Answer play_arrow

• question_answer155) Women who consumed the drug thalidomide for relief from vomiting during early months of pregnancy gave birth to children with
  A)
  no spleen
  done clear
  B)
  hare-lip
  done clear
  C)
  extra fingers and toes
  done clear
  D)
  under developed limbs
  done clear
  View Answer play_arrow

• question_answer156) Which one of the following four glands is correctly matched with the accompanying description?
  A)
  Thyroid - Hyperactivity in young children causes cretinism
  done clear
  B)
  Thymus - Starts undergoing atrophy after puberty
  done clear
  C)
  Parathyoid - Secretes parathormone which promotes movement of calcium ions from blood into bones during calcification
  done clear
  D)
  Pancreas - Delta cells of the Islets of Langerhans secrete a hormone which stimulates glycolysis in liver
  done clear
  View Answer play_arrow

• question_answer157) Formation of non-functional methaemoglobin causes blue-baby syndrome. This is due to
  A)
  excess of arsenic concentration in drinking water
  done clear
  B)
  excess of nitrates in drinking water
  done clear
  C)
  deficiency of iron in food
  done clear
  D)
  increased methane content in the atmosphere
  done clear
  View Answer play_arrow

• question_answer158) Grain colour in wheat is determined by three pairs of polygene. Following the cross AABBCC (dark colour) x aabbcc (light colour), in \[{{F}_{2}}\] generation what proportion of the progeny is likely to resemble either parent?
  A)
  Half                                       
  done clear
  B)
  Less than 5 percent
  done clear
  C)
  One third
  done clear
  D)
  None of the above
  done clear
  View Answer play_arrow

• question_answer159) What would happen if in a gene encoding a polypeptide of 50 amino acids will be (UAC) is mutated to UAA?
  A)
  A polypeptide of 49 amino acids will be formed
  done clear
  B)
  A polypeptide of 25 amino acids will be formed
  done clear
  C)
  A polypeptide of 24 amino acids will be formed
  done clear
  D)
  Two polypeptides of 24 and 25 amino acids will be formed
  done clear
  View Answer play_arrow

• question_answer160) Drosophila flies with XXY genotype are females, but human beings with such genotype are abnormal males, it shows that
  A)
  Y-chromosome is essential for sex determination in Drosophila
  done clear
  B)
  Y-chromosome in female determination in Drosophila
  done clear
  C)
  Y-chromosome is male determining in human beings
  done clear
  D)
  Y-chromosome has no role in sex determination either in Drosophila or in human beings
  done clear
  View Answer play_arrow

• question_answer161) Assertion: Euglena is a plant due it presence of chlorophyll. Reason: Euglena cannot be classified a the basis of two kingdom system
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer162) Assertion: In fungi sexual apparatus decrease in complexity from lower to higher froms Reason: In algae sexual apparatus increases in complexity from simple to the higher forms
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer163) Assertion: The true nucleus is generaly absent in E. coli and other prokaryotes Reason: An undifferentiated, unorganized fibrillar nucleus without any limiting membrane is observed in prokaryotic cells
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer164) Assertion: The imbalance in concentration of \[N{{a}^{+}},\,{{K}^{+}}\] and proteins generates resting potential Reason: To maintain the unequal distribution of \[N{{a}^{+}}\] and \[{{K}^{+}}\], the neurons use electrical energy.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer165) Assertion: Arachidic acid is an unsaniratei fatty acid. Reason: There are present one or more double bonds between carbon atoms E unsaturated fatty acids.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer166) Assertion: A coenzymes or metal ions that is very tightly bound to enzyme protein is called prosthetic group. Reason: A complete, catalytically active enzyme together with its bound prosthetic group is called apoenzyme.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer167) Assertion: Amber codon is a terminal codon. Reason: If in a mRNA, a termination coda is present, the protein synthesis stops abruptly whether the protein synthesis is complete or not.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer168) Assertion: In cymose tap root system oldest branch lies very near the growing point of the root while the youngest branch is farthest away from it. Reason: In cymose tap root system, tie primary root itself stops growing after some time; but secondary roots carry on further growth of the root system.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer169) Assertion: 7-celled, 8 nucleate and monosporic embryosac is called Polygonum type of embryo sac. Reason: It was discovered by Hofmeister for the first time in Polygonum.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer170) Assertion: The quiescent centre acts as a reservoir of relatively resistant cells which constitute a permanent source of active initials Reason: The cells of the inactive region of quiescent centre become active when the previous active initials get damaged.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer171) Assertion: Phase of cell division is also known as formative phase Reason: In formative phase new cells are produced from pre-existing cells through meiosis division.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer172) Assertion: Nitrogen fixing enzyme in legume root nodules functions at low oxygen concentration. Reason: Low oxygen concentration is provided by leghaemoglobin.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer173) Assertion: When dried seeds of pea are placed in a tin and water added up to their upper level and then a lid is putted lightly over it. Within an hour, the lid will be blown off. Reason: Due to rapid cell division in pea seeds.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer174) Assertion: Cyclic pathway of photosynthesis first appeared in some eubacterial species. Reason: Oxygen started accumulating in the atmosphere after the non-cyclic pathway of photosynthesis evolved.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer175) Assertion: Organochlorine pesticides are organic compounds that have been chlorinated. Reason: Fenitrothion is one of the organochlorine pesticides.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer176) 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)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer177) Assertion: Gene flow increase genetic variations. Reason: The random introduction of new alleles into recipient population and their removal from the donor population affects allele frequency.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer178) Assertion: Mast cells in the human body release excessive amount of inflammatory chemicals which cause allergic reactions. Reason: Allergens in the environment on reacting human body stimulate mast cells in certain individuals.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer179) Assertion: Thick layers of muscles are present in the wall of alimentary canal. Reason: These muscles help in the mixing of food materials with the enzymes coming from different glands in the alimentary canal.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer180) Assertion: Phenylketonuria is a recessive hereditary disease caused by bodys failure to oxidize an amino acid phenylalanine to tyrosine, because of defective enzyme. Reason: It results the presence of phenylalanine acid in urine.
  A)
  If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
  done clear
  B)
  If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
  done clear
  C)
  If Assertion is true, but Reason is false.
  done clear
  D)
  If both Assertion and Reason are false.
  done clear
  View Answer play_arrow

• question_answer181) Only zero and one are used for operating
  A)
  Calculator           
  done clear
  B)
         Computer                          
  done clear
  C)
         Abacus                
  done clear
  D)
         Typewriter                         
  done clear
  View Answer play_arrow

• question_answer182) Transistor is                       
  A)
   semi conductor   
  done clear
  B)
                          inductor                             
  done clear
  C)
          modulator        
  done clear
  D)
          demodulator   
  done clear
  View Answer play_arrow

• question_answer183) Computer cannot
  A)
   send message                 
  done clear
  B)
          abstract thought            
  done clear
  C)
          read files           
  done clear
  D)
          play music                         
  done clear
  View Answer play_arrow

• question_answer184) Which of the following is not a carbohydrate
  A)
   wax                                      
  done clear
  B)
          starch                  
  done clear
  C)
          sucrose              
  done clear
  D)
          maltose                              
  done clear
  View Answer play_arrow

• question_answer185) Which of the following is an eye disease?
  A)
   hepatitis            
  done clear
  B)
          measles                             
  done clear
  C)
          glaucoma           
  done clear
  D)
          bronchitis                          
  done clear
  View Answer play_arrow

• question_answer186) Which of the following is the vaccine for tuberculosis?
  A)
   DPT                                      
  done clear
  B)
          BCG                                     
  done clear
  C)
          salk vaccine      
  done clear
  D)
          rubella vaccine
  done clear
  View Answer play_arrow

• question_answer187) Horns, nails and hair are
  A)
   soluble fats
  done clear
  B)
          insoluble carbohydrates
  done clear
  C)
          keratin proteins   
  done clear
  D)
          complex lipids
  done clear
  View Answer play_arrow

• question_answer188) Who conducts the State assembly elections?
  A)
   Chief Justice of the High Court concerned
  done clear
  B)
          Chief Justice of the Supreme Court
  done clear
  C)
          Chief Election Commission
  done clear
  D)
          Governor of the state concerned
  done clear
  View Answer play_arrow

• question_answer189) Which is an ore of aluminium?
  A)
   chromite          
  done clear
  B)
          cuprite                
  done clear
  C)
          bauxite         
  done clear
  D)
          siderite
  done clear
  View Answer play_arrow

• question_answer190) Kalidas was
  A)
   A poet during the Gupta period
  done clear
  B)
          A dramatist during Harshvardhanas reign
  done clear
  C)
          An astronomer during Gupta period
  done clear
  D)
          None of these
  done clear
  View Answer play_arrow

• question_answer191) Which mirror is used as a rear view mirror in vehicles?
  A)
   plain            
  done clear
  B)
          convex
  done clear
  C)
          concave          
  done clear
  D)
          spherical
  done clear
  View Answer play_arrow

• question_answer192) The compilation "Meri Ekyawan Kavitayens is by
  A)
   A.B. Vaj payee
  done clear
  B)
          Harivanshrai Bachchan
  done clear
  C)
          Dharam Vir Bharti
  done clear
  D)
          Shiv Mangal Singh Sum an 
  done clear
  View Answer play_arrow

• question_answer193) Equinox means
  A)
   days are longer than nights
  done clear
  B)
          days and nights are equal
  done clear
  C)
          days are shorter than nights
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer194) Who was known as "Nightingale of India"?
  A)
   Vijaylaxmi Pandit
  done clear
  B)
          Sarojini Naidu  
  done clear
  C)
          Suraiya          
  done clear
  D)
          None of these
  done clear
  View Answer play_arrow

• question_answer195) Gaya is associated with Lord buddha, where he
  A)
   was born
  done clear
  B)
          attained enlightenment
  done clear
  C)
          died
  done clear
  D)
          delivered his first sermon
  done clear
  View Answer play_arrow

• question_answer196) Chemical change does not take place in
  A)
   souring of milk into curd
  done clear
  B)
          rusting of iron in atmosphere
  done clear
  C)
          burning of magnesium ribbon in air
  done clear
  D)
          emitting of light by a red hot platinum wire
  done clear
  View Answer play_arrow

• question_answer197) Who is the highest wicket taker in Indian Cricket team?
  A)
   Javagal Srinath   
  done clear
  B)
          Anil Kumble      
  done clear
  C)
          Maninder Singh  
  done clear
  D)
          Kapil Dev
  done clear
  View Answer play_arrow

• question_answer198) Which country leads in production of aluminium and aluminium goods
  A)
   Australia
  done clear
  B)
                   U.S.                      
  done clear
  C)
          Russia          
  done clear
  D)
          Japan
  done clear
  View Answer play_arrow

• question_answer199) Which of the following places was known as a centre of learning in ancient India?
  A)
   Nalanda         
  done clear
  B)
          Ujjain                  
  done clear
  C)
          Allahabad        
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer200) The process of transfer of heat by matter but without actual movement of the particles themselves is called
  A)
   conduction
  done clear
  B)
                  convection
  done clear
  C)
          radiation
  done clear
  D)
          none of the above
  done clear
  View Answer play_arrow