Solved papers for JCECE Medical JCECE Medical Solved Paper-2014

done JCECE Medical Solved Paper-2014 Total Questions - 150

• question_answer1) A mass of 0.5 kg moving with a speed of \[1.5\,\text{m}{{\text{s}}^{-1}}\]on a horizontal smooth surface, collides with a nearly weightless spring of force constant\[\text{k}\,\text{=}\,\text{50}\,\text{N}{{\text{m}}^{-1}}.\]The maximum  compression of the spring would be
  A)
   0.15 m             
  done clear
  B)
   0.23 m
  done clear
  C)
  1.6 m               
  done clear
  D)
   0.4 m
  done clear
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• question_answer2) A particle of mass \[{{m}_{1}}\]moves with velocity\[{{\upsilon }_{1}}\]  and collides with another particle at rest of equal mass. The velocity of the second particle after the elastic collision is                     
  A)
  \[3{{v}_{1}}\]
  done clear
  B)
   \[{{v}_{1}}\]
  done clear
  C)
   \[-{{v}_{1}}\]
  done clear
  D)
   \[0\]
  done clear
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• question_answer3) The ratio of the radii of gyration of a circular disc to that of a circular ring, each of same  mass and radius, around their respective axis is
  A)
  \[\sqrt{3}:\sqrt{2}\]
  done clear
  B)
   \[1:\sqrt{2}\]
  done clear
  C)
   \[\sqrt{3}:1\]
  done clear
  D)
   \[\sqrt{5}:\sqrt{3}\]
  done clear
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• question_answer4) A wheel having moment of inertia \[2\,\text{kg}-{{m}^{2}}\] about its vertical axis, rotates at the rate of 60 rpm about this axis. The torque which can stop the wheels rotation in one minute would be
  A)
  \[\frac{2\pi }{13}N-m\]
  done clear
  B)
   \[\frac{\pi }{14}N-m\]
  done clear
  C)
   \[\frac{\pi }{15}N-m\]
  done clear
  D)
   \[\frac{\pi }{20}N-m\]
  done clear
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• question_answer5) A sphere of diameter 0.2 m and mass 2 kg is rolling on an inclined plane with velocity \[\upsilon =0.5\,m{{s}^{-1}}.\]The kinetic energy of the sphere is
  A)
  \[0.4\,J\]
  done clear
  B)
   \[0.3\,J\]
  done clear
  C)
   \[0.6\,J\]
  done clear
  D)
   \[0.42\,J\]
  done clear
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• question_answer6) If a sphere rolling on an inclined plane with velocity \[\upsilon \] without slipping, the vertical height of the incline in terms of velocity will be
  A)
  \[\frac{7v}{10g}\]
  done clear
  B)
   \[\frac{7{{v}^{2}}}{10g}\]
  done clear
  C)
   \[\frac{2{{v}^{2}}}{5g}\]
  done clear
  D)
   \[\frac{3v}{5g}\]
  done clear
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• question_answer7) The height vertically above the earths surface at which the acceleration due to gravity becomes 1% of its value at the surface is (R is the radius of the earth)
  A)
   QR    
  done clear
  B)
   9R    
  done clear
  C)
  10R   
  done clear
  D)
   20R
  done clear
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• question_answer8) The motion of a particle executing SHM in one dimension is described by \[x=-0.3\sin \left( t+\frac{\pi }{4} \right).\] where, \[x\] is in metre and t in second. The frequency of oscillation in Hz is
  A)
   3
  done clear
  B)
   \[\frac{1}{2\pi }\]
  done clear
  C)
   \[\frac{\pi }{2}\]
  done clear
  D)
   \[\frac{1}{\pi }\]
  done clear
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• question_answer9) The change in the gravitational potential energy when a body of mass m is raised to a height \[nR\]above the surface of the earth is (here, R is the radius of the earth)
  A)
  \[\left( \frac{n}{n+1} \right)mgR\]
  done clear
  B)
   \[\left( \frac{n}{n-1} \right)mgR\]
  done clear
  C)
   \[nmgR\]
  done clear
  D)
   \[\frac{mgR}{n}\]
  done clear
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• question_answer10) A satellite is rotating around a planet in the orbit of radius r with time period T. If gravitational force changes according to \[{{r}^{5/2}},\]the \[{{T}^{2}}\]will be
  A)
  \[\propto {{r}^{3}}\]
  done clear
  B)
   \[\propto {{r}^{7/2}}\]
  done clear
  C)
   \[\propto {{r}^{9/2}}\]
  done clear
  D)
   \[\propto {{r}^{3/2}}\]
  done clear
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• question_answer11) A liquid X of density \[3.36\,g/c{{m}^{3}}\]is poured in a U-tube in right arm with height 10 cm, which contains Hg. Another liquid Y is poured in left arm with height 8 cm. Upper levels of X and Y are same. What is the density of Y?
  A)
  \[0.8g/cc\]          
  done clear
  B)
  \[1.2g/cc\]
  done clear
  C)
  \[1.4g/cc\]          
  done clear
  D)
  \[1.6g/cc\]
  done clear
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• question_answer12) Water flows along a horizontal pipe whose cross-section is not constant. The pressure is 1 cm of Hg, where the velocity is 3\[35\,\text{cm}{{\text{s}}^{-1}}.\]At a point where the velocity is \[65\,\text{cm}{{\text{s}}^{-1}},\] the pressure will be
  A)
   0.89 cm of Hg      
  done clear
  B)
   8.9 cm of Hg
  done clear
  C)
   0.5 cm of Hg       
  done clear
  D)
   1 cm of Hg
  done clear
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• question_answer13) A lead bullet of unknown mass is fired with a speed of 180 ms~1 into a tree in which it stops. Assuming that in this process two-third of heat produced goes into the bullet and one-third into wood. The temperature of the bullet rises by
  A)
   \[140{{\,}^{o}}C\]
  done clear
  B)
  \[106{{\,}^{o}}C\]
  done clear
  C)
   \[90{{\,}^{o}}C\]
  done clear
  D)
  \[100{{\,}^{o}}C\]
  done clear
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• question_answer14) The freezer in a refrigerator is located at the top section so that
  A)
   the entire chamber of the refrigerator is cooled quickly due to convection
  done clear
  B)
   the motor is not heated
  done clear
  C)
   the heat gained from the environment is  high
  done clear
  D)
   the heat gained from the environment is  low
  done clear
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• question_answer15) Two monoatomic ideal gases A and B occupying the same volume V are at the same   temperature T and pressure p. If they are mixed, the resultant mixture has volume V and temperature T. The pressure of the mixture is
  A)
   p
  done clear
  B)
   \[\frac{p}{2}\]
  done clear
  C)
   \[4p\]
  done clear
  D)
   \[2p\]
  done clear
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• question_answer16) The temperature at which the mean KE of the molecules of gas is one-third of the mean KE of its molecules at \[180{{\,}^{o}}C\]is
  A)
  \[~-122{{\,}^{o}}C\]
  done clear
  B)
  \[-90{{\,}^{o}}C\]
  done clear
  C)
  \[~60{{\,}^{o}}C\]  
  done clear
  D)
  \[151{{\,}^{o}}C\]
  done clear
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• question_answer17) U is the PE of an oscillating particle and F is the force acting on it at a given instant. Which of the following is true?
  A)
  \[\frac{U}{F}+x=0\]
  done clear
  B)
   \[\frac{2U}{F}+x=0\]
  done clear
  C)
   \[\frac{F}{U}+x=0\]
  done clear
  D)
   \[\frac{F}{2U}+x=0\]
  done clear
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• question_answer18) The density of newly discovered planet is twice that of the earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is R, the radius of the plane would be
  A)
  \[2R\]
  done clear
  B)
   \[4R\]
  done clear
  C)
   \[\frac{1}{4}R\]
  done clear
  D)
   \[\frac{1}{2}R\]
  done clear
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• question_answer19) The half-life period of a radioactive substance is 140 days. After, how much time, 15 g will decay from a 16 g sample of the substance?
  A)
   140 days           
  done clear
  B)
   280 days
  done clear
  C)
   420 days           
  done clear
  D)
   560 days
  done clear
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• question_answer20) A tuning fork A produces 4 beats \[{{s}^{-1}}\] with another tuning fork B of frequency 320 Hz. On filing one of the prongs of A, 4 beats \[{{s}^{-1}}\]are again heard when sounded with the same fork B. Then, the frequency of the fork A before filing is
  A)
   328 Hz
  done clear
  B)
   316 Hz
  done clear
  C)
   324 Hz
  done clear
  D)
   320 Hz
  done clear
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• question_answer21) Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of 72 km/h and 36 km/h. If first car blows horn of frequency 280 Hz, then the frequency of  horn heard by the driver of second car when line joining the car makes angle of \[{{45}^{o}}\] with the roads, will be
  A)
   321 Hz            
  done clear
  B)
   298 Hz
  done clear
  C)
   289 Hz            
  done clear
  D)
   280 Hz
  done clear
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• question_answer22) A particle moves along a straight line OX. At a time t (in second) the distance x of the particle from O is given by \[x=40+12t-{{t}^{3}}.\] How long would the particle travel before coming to  rest?
  A)
   24 m   
  done clear
  B)
   40 m   
  done clear
  C)
   56 m    
  done clear
  D)
   16 m
  done clear
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• question_answer23) The capacitance of a spherical conductor with radius 1m is
  A)
  \[9\times {{10}^{-9}}F\]
  done clear
  B)
   \[1\,\mu F\]
  done clear
  C)
   \[1.1\times {{10}^{-10}}F\]
  done clear
  D)
   \[1\times {{10}^{-6}}F\]
  done clear
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• question_answer24) The electric field due to an electric dipole at a distance r from its centre in axial position is E. If the dipole is rotated through an angle of \[{{90}^{o}}\]about its perpendicular axis, the electric field at the same point will be
  A)
   E
  done clear
  B)
   \[\frac{E}{4}\]
  done clear
  C)
   \[\frac{E}{2}\]
  done clear
  D)
   2E
  done clear
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• question_answer25) Choose the correct statement.
  A)
   When we heat a semiconductor its resistance increases
  done clear
  B)
   When we heat a semiconductor its resistance decreases
  done clear
  C)
   When we cool a semiconductor to 0 K, then it becames superconductor                    
  done clear
  D)
   Resistance of a semiconductor is independent of temperature
  done clear
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• question_answer26) A charge q coulomb makes n revolutions in one second in a circular orbit of radius r. The magnetic field at the centre of the orbit in \[N{{A}^{-1}}{{m}^{-1}}\]
  A)
   \[\frac{2\pi rn}{q}\times {{10}^{-7}}\]
  done clear
  B)
   \[\left( \frac{2\pi q}{r} \right)\times {{10}^{-7}}\]
  done clear
  C)
   \[\left( \frac{2\pi q}{nr} \right)\times {{10}^{-7}}\]
  done clear
  D)
   \[\left( \frac{2\pi nq}{r} \right)\times {{10}^{-7}}\]
  done clear
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• question_answer27) The path of an electron in a uniform magnetic field may be
  A)
   circular but not helical
  done clear
  B)
   helical but not circular
  done clear
  C)
   neither helical nor circular
  done clear
  D)
   either helical or circular
  done clear
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• question_answer28) The couple acting on a magnet of length 10 cm and pole strength 125 A-m, kept in a field of \[B=2\times {{10}^{-5}}T,\]at an angle of \[{{30}^{o}}\] is
  A)
  \[1.5\times {{10}^{-5}}N-m\]
  done clear
  B)
   \[1.5\times {{10}^{-3}}N-m\]
  done clear
  C)
   \[1.5\times {{10}^{-2}}N-m\]
  done clear
  D)
   \[1.5\times {{10}^{-6}}N-m\]
  done clear
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• question_answer29) X and Y, two metallic coils are arranged in such a way that, when steady change in current flowing in X coil is 4 A, change in magnetic flux associated with coil Y is 0.4Wb. Mutual inductance of the system of these coils is
  A)
   0.2 H  
  done clear
  B)
   5H    
  done clear
  C)
   0.8 H  
  done clear
  D)
   0.1 H
  done clear
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• question_answer30) A sinusoidal voltage of peak value 300 V and an angular frequency \[\omega =400\,\text{rad/s}\]is applied to series L-C-R circuit, in which \[R=3\Omega ,\,L=20\,mH\]and \[C=652\mu F.\]The peak current in the circuit is
  A)
  \[30\sqrt{2}A\]
  done clear
  B)
   \[60\,A\]
  done clear
  C)
  \[100\,A\]
  done clear
  D)
   \[60\sqrt{2}\,A\]
  done clear
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• question_answer31) A fire screen produces sensation of cooling as
  A)
   it allows both infrared and visible light but cuts off ultraviolet
  done clear
  B)
   it allows infrared and cuts off shorter wavelengths
  done clear
  C)
   it cuts off both visible light and infrared
  done clear
  D)
   it allows only visible light and cuts off  infrared
  done clear
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• question_answer32) If the angle of incidence is twice the angle of refraction in a medium of refractive index\[\mu ,\] then the angle of incidence is
  A)
  \[2{{\cos }^{-1}}\frac{\mu }{2}\]
  done clear
  B)
   \[2{{\sin }^{-1}}\frac{\mu }{2}\]
  done clear
  C)
   \[2{{\cos }^{-1}}\mu \]
  done clear
  D)
   \[2{{\sin }^{-1}}\mu \]
  done clear
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• question_answer33) The   magnification   produced   by   an astronomical telescope for normal adjustment is 10 and the length of the telescope is 1.1 m. The magnification, when the image is formed atleast distance of distinct vision is
  A)
   6                
  done clear
  B)
   14
  done clear
  C)
   16               
  done clear
  D)
   18
  done clear
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• question_answer34) In Youngs double slit experiment with sodium vapour lamp of wavelength 589 nm and the slits 0.589 mm apart, the half angular width of the central maximum is
  A)
  \[{{\sin }^{-1}}(0.01)\]
  done clear
  B)
   \[{{\sin }^{-1}}(0.0001)\]
  done clear
  C)
   \[{{\sin }^{-1}}(0.001)\]
  done clear
  D)
    \[{{\sin }^{-1}}(0.1)\]
  done clear
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• question_answer35) When the angle of incidence is \[{{60}^{o}}\] on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is
  A)
  \[\sqrt{2}\times {{10}^{8}}m{{s}^{-1}}\]
  done clear
  B)
   \[\sqrt{3}\times {{10}^{8}}m{{s}^{-1}}\]
  done clear
  C)
   \[2\times {{10}^{8}}m{{s}^{-1}}\]
  done clear
  D)
   \[3\times {{10}^{8}}\,m{{s}^{-1}}\]
  done clear
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• question_answer36) Cathode rays of velocity \[{{10}^{6}}m{{s}^{-1}}\]describe an approximate circular path of radius 1 m in an electric field \[300\,Vc{{m}^{-1}}.\] If the velocity of the cathode rays are doubled. The value of electric field so that the rays describe the same circular path, will be
  A)
  \[~2400\text{ }Vc{{m}^{-1}}\]
  done clear
  B)
   \[600\text{ }Vc{{m}^{-1}}\]
  done clear
  C)
  \[~1200\,Vc{{m}^{-1}}\]
  done clear
  D)
  \[~12000\text{ }V\,c{{m}^{-1}}\]
  done clear
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• question_answer37) The de-Broglie wavelength of an electron and the wavelength of a photon are the same. The ratio between the energy of that photon and the momentum of that electron is (c = velocity of light, h = Plancks constant)
  A)
  \[h\]
  done clear
  B)
  \[c\]
  done clear
  C)
   \[\frac{1}{h}\]
  done clear
  D)
   \[\frac{1}{c}\]
  done clear
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• question_answer38) When 1 cm thick surface is illuminated with light of wavelength\[\lambda ,\] the stopping potential is  V. When the same surface is illuminated by light of wavelength 2X, the stopping potential is\[\frac{V}{3}.\] Threshold wavelength for metallic surface is
  A)
  \[\frac{4\lambda }{3}\]
  done clear
  B)
   \[4\lambda \]
  done clear
  C)
   \[6\lambda \]
  done clear
  D)
   \[\frac{8\lambda }{3}\]
  done clear
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• question_answer39) For photoelectric emission, tungsten requires light of \[2300\,\,\overset{\text{o}}{\mathop{\text{A}}}\,.\] If light of \[\text{1800}\overset{\text{o}}{\mathop{\text{A}}}\,\]wavelength is incident, then emission
  A)
   takes place
  done clear
  B)
   doesnt take place
  done clear
  C)
   may or may not take place
  done clear
  D)
   depends on frequency
  done clear
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• question_answer40) X-rays are used in determining the molecular structure of crystalline, because
  A)
   its energy is high
  done clear
  B)
   it can penetrate the material 
  done clear
  C)
   its wavelength is comparable to interatomic distance
  done clear
  D)
   its frequency is low
  done clear
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• question_answer41) The frequency of vibration of string is given by \[v=\frac{p}{2l}{{\left[ \frac{F}{m} \right]}^{1/2}}\] Here, p is the number of segments in the string and \[l\]is the length. The dimensional formula for \[m\]will be
  A)
  \[[{{M}^{0}}L{{T}^{-1}}]\]
  done clear
  B)
   \[[M{{L}^{0}}{{T}^{-1}}]\]
  done clear
  C)
   \[[M{{L}^{-1}}{{T}^{0}}]\]
  done clear
  D)
   \[[{{M}^{0}}{{L}^{0}}{{T}^{0}}]\]
  done clear
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• question_answer42) A stone is thrown vertically upwards. When the stone is at a height equal to half of its maximum height its speed will be 10 m/s, then the maximum height attained by the stone is (Take\[g=10\,m/{{s}^{2}}\])
  A)
   3 m              
  done clear
  B)
   15 m
  done clear
  C)
   1 m              
  done clear
  D)
   10 m
  done clear
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• question_answer43) A string of length\[l\]fixed at one end carries a mass m at the other end. The string makes \[\frac{2}{\pi }rev/s\]around the horizontal axis through the fixed end as shown in the figure, the tension in the string is
  A)
  \[16\,ml\]            
  done clear
  B)
  \[6\,ml\]
  done clear
  C)
  \[5\,ml\]           
  done clear
  D)
   \[3\,ml\]
  done clear
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• question_answer44) A gardener pushes a lawn roller through a distance 20 m. If he applies a force of 20 kg-wt in a direction inclined at \[{{60}^{o}}\] to the ground, the work done by him is
  A)
   1960J
  done clear
  B)
   196J
  done clear
  C)
   1.96 J
  done clear
  D)
   196kJ
  done clear
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• question_answer45) The breaking stress of a wire depends upon
  A)
   material of wire
  done clear
  B)
   length of wire
  done clear
  C)
   radius of wire
  done clear
  D)
   shape of cross-section
  done clear
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• question_answer46) Li nucleus has three protons and four neutrons. Mass of lithium nucleus is 7.016005 amu. Mass of proton is 1.007277 amu and mass of neutron is 1.008665 amu. Mass defect for lithium nucleus in amu is
  A)
   0.04048
  done clear
  B)
   0.04050
  done clear
  C)
   0.04052
  done clear
  D)
   0.04055
  done clear
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• question_answer47) A voltmeter of range 2V and resistance \[300\,\Omega \] cannot be converted into ammeter of range
  A)
   1 A              
  done clear
  B)
   1 mA
  done clear
  C)
   100 mA           
  done clear
  D)
   10 mA
  done clear
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• question_answer48) The values of two resistors are \[{{R}_{1}}=(6+0.3)k\Omega \] and \[{{R}_{2}}=(10\,\pm \,0.2)k\Omega .\]The percentage error in the equivalent resistance when, they are connected is parallel is
  A)
   5.125%
  done clear
  B)
   2%    
  done clear
  C)
   10.125%
  done clear
  D)
   7%
  done clear
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• question_answer49) A body of mass 2 kg is projected from the ground with a velocity \[20\,m{{s}^{-1}}\]at an angle \[{{30}^{o}}\] with the vertical. If\[{{t}_{1}}\] is the time in second at which of the body is projected and \[{{t}_{2}}\] is the time in second at which it reaches the ground, the change in momentum in \[\text{kgm}{{\text{s}}^{-1}}\] during the time\[({{t}_{2}}-{{t}_{1}})\]is
  A)
   \[40\sqrt{2}\]
  done clear
  B)
   \[40\sqrt{3}\]
  done clear
  C)
   \[25\sqrt{3}\]
  done clear
  D)
   45
  done clear
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• question_answer50) The position vector of a particle is \[r=(\alpha \cos \omega t)\hat{i}+(a\,\sin \,\omega t)\hat{j}.\]The velocity vector of the particle is
  A)
   parallel to position vector
  done clear
  B)
   perpendicular to position vector
  done clear
  C)
   directed towards the origin
  done clear
  D)
   directed away from the origin
  done clear
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• question_answer51) The major product of the reaction between \[m-\]dinitrobenzene and \[N{{H}_{4}}HS\]is
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
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• question_answer52) Correct order of nucleophilicity is
  A)
  \[CH_{3}^{-}<NH_{2}^{-}<O{{H}^{-}}<{{F}^{-}}\]
  done clear
  B)
   \[{{F}^{-}}<O{{H}^{-}}<CH_{3}^{-}<NH_{2}^{-}\]
  done clear
  C)
   \[O{{H}^{-}}<NH_{2}^{-}<{{F}^{-}}<CH_{3}^{-}\]
  done clear
  D)
   \[{{F}^{-}}<O{{H}^{-}}<NH_{2}^{-}<CH_{3}^{-}\]
  done clear
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• question_answer53) The main product of the reaction would be 2-butene + chloroform\[\,\xrightarrow{\text{NaOH}}\]?
  A)
   butanoic acid 
  done clear
  B)
   2-methyl butanoic acid
  done clear
  C)
   \[1,1,1-\]trichloro\[-2-\]methyl butane
  done clear
  D)
   \[1.4-\]butanediol
  done clear
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• question_answer54) The end product of \[C{{H}_{3}}COOH\xrightarrow{CaC{{O}_{3}}}A\xrightarrow{Heat}B\xrightarrow{N{{H}_{2}}OH}C\]
  A)
   acetaldehyde       
  done clear
  B)
   acetoxime
  done clear
  C)
   formaldehyde       
  done clear
  D)
   methylcyanide
  done clear
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• question_answer55) Calorific value is in the order
  A)
   Fats > Carbohydrates > Proteins
  done clear
  B)
   Carbohydrates > Fats > Proteins
  done clear
  C)
   Proteins > Carbohydrates > Fats
  done clear
  D)
   Fats > Proteins > Carbohydrates
  done clear
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• question_answer56) The monomeric unit of orlon molecule is
  A)
   \[C{{H}_{2}}=CH-Cl\]
  done clear
  B)
   \[C{{H}_{3}}COO-CH=C{{H}_{2}}\]
  done clear
  C)
   \[C{{H}_{2}}-CH-CN\]
  done clear
  D)
   \[{{C}_{6}}{{H}_{5}}-CH=C{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer57) Which of the following acids possesses oxidising, reducing and complex forming properties?
  A)
  \[HCl\]
  done clear
  B)
   \[HN{{O}_{2}}\]
  done clear
  C)
   \[{{H}_{2}}S{{O}_{4}}\]
  done clear
  D)
   \[HN{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer58) Cassiterite is concentrated by
  A)
   levigation
  done clear
  B)
   electromagnetic separation
  done clear
  C)
   floatation.
  done clear
  D)
   liquefaction
  done clear
  View Answer play_arrow

• question_answer59) The stability of the following alkali metal chlorides follows the order
  A)
  \[LiCl>KCl>NaCl>CsCl\]
  done clear
  B)
  \[CsCl>KCl>NaCl>LiCl\]    
  done clear
  C)
  \[NaCl>KCl>LiCl>CsCl\]
  done clear
  D)
  \[KCl>CsCl>NaCl>LiCl\]
  done clear
  View Answer play_arrow

• question_answer60) The complex \[{{[Fe{{({{H}_{2}}O)}_{5}}NO]}^{2+}}\] is formed in the brown ring test for nitrates when freshly prepared \[\text{FeS}{{\text{O}}_{\text{4}}}\]solution is added to aqueous solution of \[\text{NO}_{3}^{-}\]followed by addition of conc. \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\text{.}\]Select the correct statement about this complex.
  A)
   Colour change is due to charge transfer
  done clear
  B)
   It has iron in+1 oxidation state and nitrosyl as \[\text{N}{{\text{O}}^{+}}.\]
  done clear
  C)
   It has magnetic moment of 3.87 BM confirming three unpaired electrons in Fe     
  done clear
  D)
   All the above are correct statements
  done clear
  View Answer play_arrow

• question_answer61) Consider the following statements.

  (i) Colour of a transition metal complex is dependent on energy difference, between two d-levels.

  (ii) Colour of the complex is dependent on the nature of the ligand and the type of complex formed.

  (iii) \[\text{ZnS}{{\text{O}}_{\text{4}}}\]and \[\text{Ti}{{\text{O}}_{\text{2}}}\]are white as in both, d-d spectra are impossible.

  Select the correct statements.
  A)
   I, If and III            
  done clear
  B)
   I and II
  done clear
  C)
   II and III               
  done clear
  D)
   I and III
  done clear
  View Answer play_arrow

• question_answer62) The outermost electronic configuration of the most electronegative element is
  A)
  \[n{{s}^{2}}n{{p}^{3}}\]
  done clear
  B)
   \[n{{s}^{2}}n{{p}^{4}}\]
  done clear
  C)
   \[n{{s}^{2}}n{{p}^{5}}\]
  done clear
  D)
   \[n{{s}^{2}}n{{p}^{6}}\]
  done clear
  View Answer play_arrow

• question_answer63) Standard enthalpy and standard entropy change for the oxidation of \[\text{N}{{\text{H}}_{\text{3}}}\]at 298 K are \[-382.64\,\text{kJ}\,\text{mo}{{\text{l}}^{-1}}\]and\[-145.6\,\text{J}\,\text{mo}{{\text{l}}^{-1}}\] respectively. Standard Gibbs energy change for the same reaction at 298 K is
  A)
  \[+\,339.3\text{ kJ}\,\text{mo}{{\text{l}}^{-1}}\]    
  done clear
  B)
  \[~-\text{ }439.3\text{ kJ}\,\text{mo}{{\text{l}}^{-1}}\]
  done clear
  C)
  \[-\text{ }339.3\text{ kJ mo}{{\text{l}}^{-1}}\]    
  done clear
  D)
  \[~-\text{ }393.3\text{ kJ mo}{{\text{l}}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer64) According to the Arrhenius equation, a straight line is to be obtained by plotting the logarithm of the rate constant of a chemical reaction \[(\log \,k)\] against
  A)
   T
  done clear
  B)
   \[\log \,T\]
  done clear
  C)
   \[\frac{1}{T}\]
  done clear
  D)
   \[\log \frac{1}{T}\]
  done clear
  View Answer play_arrow

• question_answer65) Which of the following is not a reducing agent?
  A)
  \[S{{O}_{2}}\]
  done clear
  B)
   \[{{H}_{2}}{{O}_{2}}\]
  done clear
  C)
   \[C{{O}_{2}}\]
  done clear
  D)
   \[N{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer66) For a dilute solution, Raoults law states that
  A)
   the lowering of vapour pressure is equal to the mole fraction of the solute         
  done clear
  B)
   the relative lowering of vapour pressure is equal to the mole fraction of solute
  done clear
  C)
   the relative lowering of vapour pressure is equal to the amount of the solution
  done clear
  D)
   the vapour pressure of the solution is equal  to the mole fraction of the solvent
  done clear
  View Answer play_arrow

• question_answer67) The bond dissociation energies of gaseous \[{{\text{H}}_{\text{2}}}\text{,C}{{\text{l}}_{\text{2}}}\]and\[\text{HCl}\] are 104, 58 and 103 kcal respectively. The enthalpy of formation of \[\text{HCl}\]gas would be
  A)
  \[~-\text{ }44\text{ kcal}\]
  done clear
  B)
  \[44\text{ kcal}\] 
  done clear
  C)
  \[~-\text{ }22\text{ kcal}\]
  done clear
  D)
  \[\text{ }\!\!~\!\!\text{ 22 kcal}\]
  done clear
  View Answer play_arrow

• question_answer68) Species acting both as Bronsted acid and base is
  A)
  \[HSO_{4}^{-}\]
  done clear
  B)
   \[N{{a}_{2}}C{{O}_{3}}\]
  done clear
  C)
   \[N{{H}_{3}}\]
  done clear
  D)
   \[O{{H}^{-}}\]
  done clear
  View Answer play_arrow

• question_answer69) The solubility of \[\text{Agl}\]in \[\text{Nal}\]solution is less than that in pure water because
  A)
  \[\text{ }\!\!~\!\!\text{ Agf}\] forms complex with \[\text{Nal}\]
  done clear
  B)
   of common ion effect
  done clear
  C)
   solubility product of \[\text{Agl}\]is less
  done clear
  D)
   the temperature of the solution decreases
  done clear
  View Answer play_arrow

• question_answer70) \[\text{Zn }\!\!|\!\!\text{ Z}{{\text{n}}^{\text{2+}}}\text{(a}\,\text{=}\,\text{0}\text{.1M) }\!\!|\!\!\text{  }\!\!|\!\!\text{ F}{{\text{e}}^{\text{2+}}}\text{(a}\,\text{=}\,\text{0}\text{.01}\,\text{M) }\!\!|\!\!\text{ Fe}\text{.}\]The emf of the above cell is 0.2905 V. Equilibrium  constant for the cell reaction is
  A)
  \[{{10}^{0.32/0.0591}}\]
  done clear
  B)
   \[{{10}^{0.32/0.0295}}\]
  done clear
  C)
   \[{{10}^{0.26/0.0295}}\]
  done clear
  D)
   \[{{10}^{0.32/0.295}}\]
  done clear
  View Answer play_arrow

• question_answer71) 50 mL of 1 M oxalic acid (molar mass =126) is shaken with 0.5 g of wood charcoal. The final concentration of the solution after adsorption is 0.5 M. What is the amount of oxalic acid adsorbed per gram of carbon?
  A)
   3.15               
  done clear
  B)
  (6) 1.575
  done clear
  C)
   6.30              
  done clear
  D)
   12.60
  done clear
  View Answer play_arrow

• question_answer72) A dust particle has mass equal to\[{{10}^{-11}}g,\] diameter\[{{10}^{-4}}cm\] and velocity \[{{10}^{-4}}cm/s.\]The error in measurement of velocity is \[0.1%.\] What will be the uncertainty in its position?
  A)
  \[~0.527\times {{10}^{10}}\text{ }cm\]   
  done clear
  B)
  \[~5.27\times {{10}^{9}}\text{ }cm\]
  done clear
  C)
  \[0.527\times {{10}^{-15}}cm\]  
  done clear
  D)
  \[0.527\times {{10}^{-9}}cm\]
  done clear
  View Answer play_arrow

• question_answer73) The value of compression factor, Z for critical constants is
  A)
  \[\frac{1}{2}\]
  done clear
  B)
   \[\frac{3}{4}\]
  done clear
  C)
   \[\frac{2}{3}\]
  done clear
  D)
   \[\frac{3}{8}\]
  done clear
  View Answer play_arrow

• question_answer74) At what. temperature, the rms velocity of \[\text{S}{{\text{O}}_{\text{2}}}\]be same as that of \[{{\text{O}}_{2}}\]at 303 K?
  A)
   273 K            
  done clear
  B)
   606 K
  done clear
  C)
  303 K            
  done clear
  D)
   403 K
  done clear
  View Answer play_arrow

• question_answer75) The percentage of water of crystallisation of a sample of blue vitriol is
  A)
   34.07%            
  done clear
  B)
   35.07%
  done clear
  C)
   36.07%            
  done clear
  D)
   37.07%
  done clear
  View Answer play_arrow

• question_answer76) Which of the following series of elements have nearly the same atomic radii?
  A)
  \[\text{ }\!\!~\!\!\text{ F, Cl, Br, I}\]          
  done clear
  B)
  \[\text{ }\!\!~\!\!\text{ Na, K, Rb, Cs}\]
  done clear
  C)
  \[\text{Li,}\,\text{Be,}\,\text{B,}\,\text{C}\]        
  done clear
  D)
  \[\text{ }\!\!~\!\!\text{ Fe, Co, Ni, Cu}\]
  done clear
  View Answer play_arrow

• question_answer77) The volume strength of 1 molar solution of \[{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}\] is
  A)
   11.2                
  done clear
  B)
   22.4
  done clear
  C)
   5.6                 
  done clear
  D)
   56
  done clear
  View Answer play_arrow

• question_answer78) Maximum amount of carbon is present in
  A)
   wrought iron         
  done clear
  B)
   cast iron
  done clear
  C)
   stainless steel       
  done clear
  D)
   German silver
  done clear
  View Answer play_arrow

• question_answer79) What is the best way to carry out the following transformation? \[1-\text{pentyne}\,\xrightarrow{{}}\text{ pentanal}\]
  A)
  \[HgS{{O}_{4}}/{{H}_{2}}S{{O}_{4}}\]
  done clear
  B)
   \[{{H}_{2}}/\]Lindlars catalyst;\[{{O}_{3}};Zn-{{H}_{2}}O\]
  done clear
  C)
   \[Hl{{O}_{4}}/{{H}_{2}}O\]
  done clear
  D)
   \[B{{H}_{3}};{{H}_{2}}{{O}_{2}}/NaOH\]
  done clear
  View Answer play_arrow

• question_answer80)  Product of this reaction is
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer81) Etherates are
  A)
   ethers
  done clear
  B)
   solution in ether
  done clear
  C)
   complexes of ethers with Lewis acid
  done clear
  D)
   complexes of ethers with Lewis base
  done clear
  View Answer play_arrow

• question_answer82) Tranquillisers are the substances used for the treatment of          .
  A)
   cancer             
  done clear
  B)
   AIDS
  done clear
  C)
   mental diseases     
  done clear
  D)
   physical disorders
  done clear
  View Answer play_arrow

• question_answer83) Which of the following carbonyl compounds on condensation gives an aromatic compound?
  A)
  \[C{{H}_{3}}CHO\]       
  done clear
  B)
  \[HCHO\]
  done clear
  C)
  \[C{{H}_{3}}COC{{H}_{3}}\]       
  done clear
  D)
  \[C{{H}_{3}}C{{H}_{2}}CHO\]
  done clear
  View Answer play_arrow

• question_answer84) Iron crystallises in a bcc system with a lattice parameter of \[\text{2}\text{.861}\,\overset{\text{o}}{\mathop{\text{A}}}\,.\] Calculate the density  of iron in the bcc system (atomic weight of \[\text{Fe}=56,{{\text{N}}_{\text{A}}}=6.02\times {{10}^{23}}\,\text{mo}{{\text{l}}^{-}}\]).
  A)
  \[7.94g\,m{{L}^{-1}}\]        
  done clear
  B)
  \[8.96\text{g}\,\text{m}{{\text{L}}^{-1}}\]
  done clear
  C)
  \[2.78\text{g}\,\text{m}{{\text{L}}^{-1}}\]        
  done clear
  D)
  \[6.72\text{g}\,\text{m}{{\text{L}}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer85) Which particle among the following will have the smallest de-Broglie wavelength, assuming that they have the same velocity?
  A)
   A positron           
  done clear
  B)
   A photon
  done clear
  C)
   An a-particle         
  done clear
  D)
   A neutron
  done clear
  View Answer play_arrow

• question_answer86) The equilibrium constant for the reaction, \[{{H}_{2}}(g)+{{I}_{2}}(g)2HI(g)\]is 64. If the volume of the container is reduced to half of the original volume, the value of the quilibrium constant will be                           
  A)
   16               
  done clear
  B)
   32
  done clear
  C)
   64               
  done clear
  D)
   128
  done clear
  View Answer play_arrow

• question_answer87) For the reaction, \[Zn(s)+C{{u}^{2+}}(0.1\,M)\xrightarrow{{}}Z{{n}^{2+}}(1M)+Cu(s)t\] aking place in a cell;\[E_{cell}^{o}\] is\[1.10\,V.{{E}_{cell}}\] for the cell will be \[\left( 2.303\frac{RT}{F}=0.0591 \right)\]
  A)
  \[~1.80\,V\]             
  done clear
  B)
  \[~1.07\,V\]
  done clear
  C)
  \[0.82\,V\]             
  done clear
  D)
  \[2.14\,V\]
  done clear
  View Answer play_arrow

• question_answer88) Surface of the eye is protected from bacterial infection by enzyme
  A)
   carbonic enhydrase 
  done clear
  B)
   urease
  done clear
  C)
   lysozyme          
  done clear
  D)
   zymase
  done clear
  View Answer play_arrow

• question_answer89) The number of \[\sigma \]bons in \[{{P}_{4}}{{O}_{10}}\]is
  A)
   6                
  done clear
  B)
   16
  done clear
  C)
   20               
  done clear
  D)
   7
  done clear
  View Answer play_arrow

• question_answer90) Indicate the wrongly named compound.
  A)
  \[\underset{(4-\text{methyl}-1-\text{pentanal})}{\mathop{C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}-C{{H}_{2}}-CHO}}\,\]
  done clear
  B)
   \[\underset{(4-\text{methyl}-2-\text{pentyn}-1-\text{oic}\,\text{acid})}{\mathop{C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C\equiv C-COOH}}\,\]
  done clear
  C)
   \[\underset{(2-\text{methyl}-1-\text{pentynoic acid})}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-COOH}}\,\]
  done clear
  D)
   \[\underset{(3-hexen-5-one)}{\mathop{C{{H}_{3}}C{{H}_{2}}-CH=CH-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-C{{H}_{3}}}}\,\]
  done clear
  View Answer play_arrow

• question_answer91) Identify the vitamin whose deficiency in our blood decreases reproductive power?
  A)
   Vitamin E           
  done clear
  B)
   Vitamin D
  done clear
  C)
   Vitamin A           
  done clear
  D)
   Vitamin C
  done clear
  View Answer play_arrow

• question_answer92) Give the major product of the following reaction,
  A)
  
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   Cannot say
  done clear
  View Answer play_arrow

• question_answer93) Phenol \[\xrightarrow[(ii)\,C{{O}_{2}}/140{{\,}^{o}}C]{(i)\,NaOH}A\xrightarrow[{}]{{{H}^{+}}/{{H}_{2}}O}B\xrightarrow{{{A}_{{{c}_{2}}}}O}C\] In this reaction, the end product C is
  A)
   salicylaldehyde      
  done clear
  B)
   salicylic acid
  done clear
  C)
   phenyl acetate       
  done clear
  D)
   aspirin
  done clear
  View Answer play_arrow

• question_answer94) What will be the degree of ionisation of 0.05 M acetic acid if its \[\text{p}{{\text{K}}_{\text{a}}}\]value is 4.74?
  A)
   0.019%           
  done clear
  B)
   1.9%
  done clear
  C)
   3.0%             
  done clear
  D)
   4.74%
  done clear
  View Answer play_arrow

• question_answer95) Which of the reactions defines\[\Delta H_{f}^{o}\]
  A)
  \[{{C}_{\text{diamond}}}+{{O}_{2}}(g)\xrightarrow{{}}C{{O}_{2}}(g)\]
  done clear
  B)
   \[\frac{1}{2}{{H}_{2}}(g)+\frac{1}{2}{{F}_{2}}(g)\xrightarrow{{}}HF(g)\]
  done clear
  C)
   \[{{N}_{2}}(l)+3{{H}_{2}}(g)\xrightarrow{{}}2N{{H}_{3}}(g)\]
  done clear
  D)
   \[CO(g)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}C{{O}_{2}}(g)\]
  done clear
  View Answer play_arrow

• question_answer96) The equivalent weight of \[\text{N}{{\text{a}}_{\text{2}}}{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}\]in the following reaction is \[2N{{a}_{2}}{{S}_{2}}{{O}_{3}}+{{I}_{2}}\xrightarrow{{}}N{{a}_{2}}{{S}_{4}}{{O}_{6}}+2NaI\]
  A)
   M              
  done clear
  B)
   M/8
  done clear
  C)
   M/0.5           
  done clear
  D)
   M/2
  done clear
  View Answer play_arrow

• question_answer97) The half-life period for first order reaction having activation energy \[39.3\,\text{kcal}\,\text{mo}{{\text{l}}^{-1}}\] at \[\text{300}{{\,}^{\text{o}}}\text{C}\]and frequency constant \[1.11\times {{10}^{11}}\,{{s}^{-1}}\] will be                       
  A)
   1 h               
  done clear
  B)
   1.68 h
  done clear
  C)
   1.28 h            
  done clear
  D)
   1.11 h
  done clear
  View Answer play_arrow

• question_answer98) Water is brought to boil under a pressure of 1.0 atm. When an electric current of 0.50 A from a 12 V supply is passed for 300 s through a resistance in thermal contact with it, it is found that 0.798 g of water is vaporised. Calculate the molar internal energy change at boiling point (373.15 K).
  A)
  \[37.5\,kJ\,mo{{l}^{-1}}\]
  done clear
  B)
   \[3.75\,kJ\,mo{{l}^{-1}}\]
  done clear
  C)
   \[42.6\,kJ\,mo{{l}^{-1}}\]
  done clear
  D)
   \[4.26\,kJ\,mo{{l}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer99) The electrons, identified by quantum numbers \[n\]and\[l,\] (i)\[~n=4,l=1\] (ii)\[n=4,l=0\](iii) \[n=3,l=2\](iv) \[n=3,l=1\] can be placed in order of increasing energy, from the lowest to highest, as
  A)
  \[(iv)<(ii)<(iii)<(i)\]
  done clear
  B)
   \[(ii)<(iv)<(i)<(iii)\]
  done clear
  C)
   \[(i)<(iii)<(ii)<(ii)\]
  done clear
  D)
   \[(iii)<(i)<(iv)<(ii)\]
  done clear
  View Answer play_arrow

• question_answer100) At certain temperature and a total pressure of \[\text{1}{{\text{0}}^{\text{5}}}\,\text{Pa,}\]iodine vapours contains 40% by  volume of iodine atoms. \[{{K}_{p}}\] for the equilibrium, \[{{I}_{2}}(g)2I(g);\]will be
  A)
   \[0.67\]
  done clear
  B)
   \[1.5\]
  done clear
  C)
   \[2.67\times {{10}^{4}}\]
  done clear
  D)
   \[9.0\times {{10}^{4}}\]
  done clear
  View Answer play_arrow

• question_answer101) Triticale obtained by crossing wheat with
  A)
   pearl millet           
  done clear
  B)
   sugarcane
  done clear
  C)
   barley               
  done clear
  D)
   rye
  done clear
  View Answer play_arrow

• question_answer102) Chief totipotent cells in plants
  A)
   cork cells           
  done clear
  B)
   xylem cells
  done clear
  C)
   meristems          
  done clear
  D)
   sieve tubes
  done clear
  View Answer play_arrow

• question_answer103) Epigeal germination is found in
  A)
   gourd              
  done clear
  B)
   mustard
  done clear
  C)
   tamarind            
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer104) Which one is not a neurotransmitter?
  A)
   Epinephrine        
  done clear
  B)
   Norepjnephrine
  done clear
  C)
   Cortisone           
  done clear
  D)
   Acetylcholine
  done clear
  View Answer play_arrow

• question_answer105) Swimming whales are
  A)
   benthos            
  done clear
  B)
   nekton
  done clear
  C)
   Both [a] and [b]       
  done clear
  D)
   plankton
  done clear
  View Answer play_arrow

• question_answer106) The protoplasm is
  A)
   emulsion           
  done clear
  B)
   colloidal
  done clear
  C)
   suspension         
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer107) Grassland with scattered trees called as
  A)
   desert              
  done clear
  B)
   deciduous rain forest
  done clear
  C)
   savanna            
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer108) Just after \[{{G}_{1}}-\]phase
  A)
   \[{{G}_{2}}-\]phase          
  done clear
  B)
   M-phase
  done clear
  C)
   S-phase           
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer109) Foliose lichen is    
  A)
   Cladonia            
  done clear
  B)
   Usnea
  done clear
  C)
   Lecanora           
  done clear
  D)
   Parmelia
  done clear
  View Answer play_arrow

• question_answer110) The roots of which one plant show medicinal values, while leaves, flowers and fruits are eaten as vegetables?
  A)
   Holostemma adakodien             
  done clear
  B)
   Afeuritis fordii
  done clear
  C)
   Helianthus anauus
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer111) Sudden appearance of an ancestral character is
  A)
   mutation            
  done clear
  B)
   atavism
  done clear
  C)
   heredity          
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer112) Annual rings are formed by period activity of
  A)
   vascular cambium
  done clear
  B)
   vascular elements
  done clear
  C)
   pericyle and endodermis
  done clear
  D)
   Both [a] and [b]
  done clear
  View Answer play_arrow

• question_answer113) Freemartin is an example of
  A)
   unlike sex twins
  done clear
  B)
   sex reveral by gene
  done clear
  C)
   environmental control of sex
  done clear
  D)
   any disease                            
  done clear
  View Answer play_arrow

• question_answer114) Synthesis of \[mRNA\]and \[tRNA\]occurs in
  A)
  \[{{G}_{1}}-\] phase            
  done clear
  B)
   \[{{G}_{2}}-\]phase
  done clear
  C)
   S-phase            
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer115) Cytochrome oxidase contains
  A)
   zn               
  done clear
  B)
   Mn
  done clear
  C)
   Mg            
  done clear
  D)
   Fe
  done clear
  View Answer play_arrow

• question_answer116) Arbor vitae is composed of
  A)
   grey matter          
  done clear
  B)
   white matter
  done clear
  C)
   neuroglial cells        
  done clear
  D)
   AH of these
  done clear
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• question_answer117) In \[{{\text{C}}_{\text{4}}}\]plant PEP case helps in synthesis of
  A)
   oxalocetate         
  done clear
  B)
   oxafosuccinate
  done clear
  C)
   DHAP              
  done clear
  D)
   phosphoglycerate
  done clear
  View Answer play_arrow

• question_answer118) Apomixis means development of plant
  A)
   from root cuttings
  done clear
  B)
   from root and stem cuttings
  done clear
  C)
   without gamete fusion
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer119) Yellow colour of eyes and skin in jaundice caused by
  A)
   bilirubin              
  done clear
  B)
   biliverdin
  done clear
  C)
   yellow pigment      
  done clear
  D)
   cholesterol
  done clear
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• question_answer120) Virus that possess transcriptase enzyme
  A)
   corona virus         
  done clear
  B)
   retrovirus
  done clear
  C)
   tonga virus          
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer121) The rbynophytes have
  A)
   leaves like todays fern
  done clear
  B)
   flourishing group of plants
  done clear
  C)
   sporangia at the tips of thin branches
  done clear
  D)
   sporangia near the base of shoot
  done clear
  View Answer play_arrow

• question_answer122) PCR is associated with
  A)
   DNA cloning
  done clear
  B)
   Amplification of DNA             
  done clear
  C)
  (q) DNA selective replication
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer123) Little leaf of brinjal is caused by
  A)
   virus               
  done clear
  B)
   bacteria
  done clear
  C)
   Mycopfasma        
  done clear
  D)
   fungi
  done clear
  View Answer play_arrow

• question_answer124) Lampbrush chromosomes occur in
  A)
   salivary glands      
  done clear
  B)
   lymph gland
  done clear
  C)
   oocytes             
  done clear
  D)
   cancer cells
  done clear
  View Answer play_arrow

• question_answer125) Which cell organelle would not originated by endosymbiosis?
  A)
   Mitochondria        
  done clear
  B)
   Flagella
  done clear
  C)
   Nucleus            
  done clear
  D)
   Chloroplasts
  done clear
  View Answer play_arrow

• question_answer126) The term New Systematics was proposed by
  A)
   Julian Huxley        
  done clear
  B)
   Bateson
  done clear
  C)
   Linnaeus            
  done clear
  D)
   Darwin
  done clear
  View Answer play_arrow

• question_answer127) The inflorescence in Ocimum sanctum is
  A)
   cyathium
  done clear
  B)
   verticullaster
  done clear
  C)
   hypanthodium
  done clear
  D)
   raceme                
  done clear
  View Answer play_arrow

• question_answer128) Vitamin-K and cynocobalamine deficiency causes
  A)
   scurvy and pernicuous anaemia
  done clear
  B)
   xerophthalmia and anaemia
  done clear
  C)
   bleeding and perniceous anaemia
  done clear
  D)
   osteomalacia and anaemia
  done clear
  View Answer play_arrow

• question_answer129) Different colour of frogs skin is controlled by
  A)
   hormones
  done clear
  B)
   melanocytes
  done clear
  C)
   nervous system
  done clear
  D)
   Both [a] and [c]
  done clear
  View Answer play_arrow

• question_answer130) Operon concept was proposed by
  A)
   Jacob and Monod
  done clear
  B)
   D Baltimore
  done clear
  C)
   Beadle and Tatum
  done clear
  D)
   Nirenberg and Ochowa
  done clear
  View Answer play_arrow

• question_answer131) The niche of a population is defined as
  A)
   set of condition that interacts
  done clear
  B)
   place where it lives
  done clear
  C)
   set of conditions and resources it uses
  done clear
  D)
   geographical area that it covers
  done clear
  View Answer play_arrow

• question_answer132) In ultrasonography
  A)
   antgen-antibody interactions occur
  done clear
  B)
   high frequency sound waves are used
  done clear
  C)
   magnetic waves are used for diagosing
  done clear
  D)
   Both [b] and [c]
  done clear
  View Answer play_arrow

• question_answer133) Which of the following is not present in the polluted water?
  A)
   Hydrilla
  done clear
  B)
   Eichhornia
  done clear
  C)
   Cynobacteria
  done clear
  D)
   Larva of stone fly
  done clear
  View Answer play_arrow

• question_answer134) Which one of the following palindromic base sequence in DNA can be easiely cut at about the middle by some perticular RE?
  A)
  \[5-CGTTCG-3\] \[3-ATCGTA-5\]
  done clear
  B)
   \[5-GATATG-3\] \[3-CTACTA-5\]
  done clear
  C)
   \[5-GAATTC-3\] \[3-CTTAAG-5\]
  done clear
  D)
   \[5-CACGTA-3\] \[3-CTCAGT-5\]
  done clear
  View Answer play_arrow

• question_answer135) Treatment of seed at low temperature under sufficient moisture to break its dormancy is called .
  A)
   stratificatton          
  done clear
  B)
   chelation
  done clear
  C)
   vernalisation         
  done clear
  D)
   scarification
  done clear
  View Answer play_arrow

• question_answer136) Phenotype of an organism is the result of
  A)
   environmental changes and sexual dimorphism
  done clear
  B)
   genotype and environmental interactions
  done clear
  C)
   cytoplasms effects and nutrition
  done clear
  D)
   linkages and mutations
  done clear
  View Answer play_arrow

• question_answer137) Conifers differ from grasses in the
  A)
   production of seed from ovules
  done clear
  B)
   lack of xylem tracheids
  done clear
  C)
   absence of pollen tubes
  done clear
  D)
   formation of endosperm before fertilization
  done clear
  View Answer play_arrow

• question_answer138) Angiotensinogen is a protein produced and secreted by
  A)
   macula dense cells
  done clear
  B)
   endothelial cells (cells lining the blood vessels)
  done clear
  C)
   liver cells
  done clear
  D)
   cells of juxta glomerular
  done clear
  View Answer play_arrow

• question_answer139) Periderm is formed by
  A)
   phellem           
  done clear
  B)
   phelloderm
  done clear
  C)
   phellogen           
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer140) Litmus is obtained from
  A)
   Lichen  
  done clear
  B)
   Algae  
  done clear
  C)
   Fungi   
  done clear
  D)
   Protozoa
  done clear
  View Answer play_arrow

• question_answer141) Recognition sequence in \[EcoRi\]is
  A)
  GAATTC
  done clear
  B)
   GGCC
  done clear
  C)
   AAGCTT
  done clear
  D)
   CTGCAG            
  done clear
  View Answer play_arrow

• question_answer142) Which is a non-reducing sugar?
  A)
   Glucose
  done clear
  B)
   Galactose
  done clear
  C)
   Mannose
  done clear
  D)
   Sucrose
  done clear
  View Answer play_arrow

• question_answer143) Each male genital opening of Pheretima has separate opening of
  A)
   two ducts         
  done clear
  B)
   three ducts
  done clear
  C)
   five ducts          
  done clear
  D)
   four ducts
  done clear
  View Answer play_arrow

• question_answer144) The animal with bilateral symmetry in young stage and radial pentamerous symmetry in the adult stage belong to the phylum
  A)
   Annelida           
  done clear
  B)
   Mollusca
  done clear
  C)
   Coelenterata        
  done clear
  D)
   Echinodermata
  done clear
  View Answer play_arrow

• question_answer145) Lack of independent assortment of two genes-A and B in fruitfly (Drosophild) is due to
  A)
   repulsion           
  done clear
  B)
   recombination
  done clear
  C)
   linkage         
  done clear
  D)
   crossing over
  done clear
  View Answer play_arrow

• question_answer146) Which one of the following hormone is a modified amino acid?
  A)
   Epinephrine        
  done clear
  B)
   Progesterone.
  done clear
  C)
   Prostaglandin       
  done clear
  D)
   Estrogen
  done clear
  View Answer play_arrow

• question_answer147)  Which one of the following amino acid was not found to be synthesised in Millers  experiment?
  A)
   Glycine
  done clear
  B)
   Aspartic acid
  done clear
  C)
   Glutamic acid
  done clear
  D)
   Alanine
  done clear
  View Answer play_arrow

• question_answer148) Presence of persistant calyx is a feature of family
  A)
   Solanaceae        
  done clear
  B)
   Poaceae
  done clear
  C)
   Malvaceae         
  done clear
  D)
   Asteraceae
  done clear
  View Answer play_arrow

• question_answer149) Renal portal system is
  A)
   present in all vertebrates
  done clear
  B)
   present in all chordates
  done clear
  C)
   absent in mammals
  done clear
  D)
   present in all mammals
  done clear
  View Answer play_arrow

• question_answer150) Bidders canal is found in
  A)
   male frog           
  done clear
  B)
   female frog
  done clear
  C)
   male rabbit
  done clear
  D)
   female rabbit
  done clear
  View Answer play_arrow