question_answer 1) Tail of comet is because of
A)
sublimation of vapour in comet
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B)
vaporisation of water in comet
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C)
vaporisation of heat in comet
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D)
cooling of water in the comet
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question_answer 2) The energy required to excite an electron from the ground state of hydrogen atom to the First excited state will be
A)
\[1.632\times {{10}^{-18}}\,\,V\]
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B)
\[1.612\times {{10}^{-14}}\,\,V\]
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C)
\[1.619\times {{10}^{-16}}\,\,V\]
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D)
none of these
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question_answer 3) Magnification of least distance of distinct vision of a simple microscope of focal length \[5\,\,cm\], will be
A)
6
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B)
5
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C)
4
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D)
2
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question_answer 4) The resistance of an ideal voltmeter is
A)
\[500\Omega \]
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B)
\[100\Omega \]
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C)
infinity
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D)
zero
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question_answer 5) Two inductors each of inductance \[L\] are connected in parallel. Their equivalent inductance will be
A)
zero
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B)
\[\frac{L}{2}\]
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C)
\[2\,\,L\]
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D)
\[L\]
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question_answer 6) If an electron is brought towards another electron, then electric potential of the system
A)
remains same
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B)
becomes zero
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C)
decrease
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D)
increases
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question_answer 7) Velocity of sound in air is
A)
directly proportional to temperature
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B)
faster in dry air than in moisture
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C)
directly proportional to pressure
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D)
none of these
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question_answer 8) A cylinder contains \[10\,\,kg\] of gas at pressure of\[10\,\,N/{{m}^{2}}\]. The quantity of gas taken out of the cylinder, if final pressure is \[2.5\times {{10}^{6}}\,\,N/{{m}^{2}}\] will be (temperature of gas is constant)
A)
\[15.2\,\,kg\]
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B)
\[3.7\,\,kg\]
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C)
\[zero\]
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D)
\[7.5\,\,kg\]
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question_answer 9) Moment of inertia of a thin circular disc of mass \[M\] and radius \[R\] about any diameter is
A)
\[2M{{R}^{2}}\]
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B)
\[M{{R}^{2}}\]
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C)
\[\frac{M{{R}^{2}}}{2}\]
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D)
\[\frac{M{{R}^{2}}}{4}\]
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question_answer 10) Velocity of a body on reaching the point from which it was projected upward, will be
A)
\[v=u\]
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B)
\[v=0.5\,\,u\]
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C)
\[v=0\]
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D)
\[v=2u\]
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question_answer 11) Retrograde means
A)
west to east rotation of all planets
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B)
east to west rotation of venus
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C)
east to west rotation of Uranus
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D)
both [b] and [c]
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question_answer 12) Number of electrons, having one coulomb of charge is
A)
\[6.25\times {{10}^{18}}\]
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B)
\[5.26\times {{10}^{28}}\]
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C)
\[1.6\times {{10}^{19}}\]
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D)
\[1.6\times {{10}^{21}}\]
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question_answer 13) A plane convex lens is made of refractive index\[1.6\]. The radius of curvature of the curved surface is\[60\,\,cm\]. Then, the focal length of the lens will be
A)
\[400\,\,cm\]
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B)
\[200\,\,cm\]
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C)
\[100\,\,cm\]
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D)
\[50\,\,cm\]
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question_answer 14) If the magnet of length \[10\,\,cm\] and pole strength \[40\,\,Am\] is placed at an angle of \[{{45}^{o}}\] in an uniform induction field of intensity \[2\times {{10}^{-4}}\]tesla. The couple acting on it will be
A)
\[0.656\times {{10}^{-5}}\,\,N\text{-}m\]
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B)
\[0.656\times {{10}^{-4}}\,\,N\text{-}m\]
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C)
\[0.5656\times {{10}^{-4}}\,\,N\text{-}m\]
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D)
\[0.5656\times {{10}^{-3}}\,\,N\text{-}m\]
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question_answer 15) Charge \[{{q}_{2}}\] is at the centre of a circular path of radius\[r\]. Work done in carrying charge \[{{q}_{1}}\], one around this equipotential path, would be
A)
\[66\]
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B)
\[44\]
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C)
\[22\]
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D)
\[zero\]
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question_answer 16) When a dielectric material is introduced between plates of a charged condenser, then electric Field between the plates.
A)
remain constant
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B)
decreases
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C)
increases
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D)
first (c) then (b)
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question_answer 17) The frequency of rod is\[200\,\,Hz\]. If the velocity of sound in air is\[340\,\,m/s\]. Then the wavelength of the produced sound is
A)
\[6.8\,\,cm\]
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B)
\[1.7\,\,cm\]
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C)
\[6.8\,\,cm\]
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D)
\[1.7\,\,m\]
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question_answer 18) Density of substance at \[{{0}^{o}}C\] is \[10\,\,g/cc\] and at\[{{100}^{o}}C\], its density is\[9.7\,\,g/cc\]. The coefficient of linear expansion of the substance will be
A)
\[{{10}^{2}}\]
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B)
\[{{10}^{-2}}\]
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C)
\[{{10}^{-3}}\]
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D)
\[{{10}^{-4}}\]
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question_answer 19) A body of mass \[5\,\,kg\] moving with a velocity \[10\,\,m/s\] collides with another body of the mass \[20\,\,kg\] at rest and conies to rest. The velocity of second due to collision will be
A)
\[10\,\,m/s\]
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B)
\[7.5\,\,m/s\]
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C)
\[2.5\,\,m/s\]
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D)
\[5\,\,m/s\]
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question_answer 20) The angular speed of a fly wheel making 180 revolutions/minute will be
A)
\[6\,\pi \,\,rad/\sec \]
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B)
\[12\,\pi \,\,rad/\sec \]
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C)
\[2\,\,\pi \,\,rad/\sec \]
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D)
\[\pi \,\,rad/\sec \]
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question_answer 21) In case of a semi-conductor, which of the following statement is wrong?
A)
At absolute zero temperature, it behave like a conductor
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B)
Resistivity is in between that of a conductor and insulator.
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C)
Doping increases conductivity
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D)
Temperature coefficient of resistance is negative
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question_answer 22) The \[X-\]ray cannot be diffracted by means of ordinary grating due to
A)
large wavelength
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B)
short wavelength
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C)
high speed
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D)
none of these
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question_answer 23) The time taken by the light to cross a glass of thickness \[4\,\,mm\] and refractive index\[\mu =3\], is
A)
\[4\times {{10}^{-11}}\sec \]
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B)
\[8\times {{10}^{-10}}\sec \]
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C)
\[2\times {{10}^{-11}}\sec \]
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D)
\[1\times {{10}^{-11}}\sec \]
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question_answer 24) The radius of circular path of an electron when subjected to a perpendicular magnetic field, will be
A)
\[\frac{mv}{Be}\]
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B)
\[\frac{me}{B}\]
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C)
\[\frac{mE}{B}\]
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D)
\[\frac{Be}{mv}\]
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question_answer 25) Three capacitors of capacitance\[3\mu F\], \[10\mu F\] and \[15\mu F\] are joined in series to a voltage source of\[100\,\,V\]. The charge on \[15\mu F\] will be
A)
\[280\]
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B)
\[50\,\,\mu C\]
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C)
\[100\,\,\mu C\]
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D)
\[200\,\,\mu C\]
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question_answer 26) Electromotive force is the force which is able to maintain a constant
A)
potential difference
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B)
power
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C)
current
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D)
resistance
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question_answer 27) Two waves are approaching each other with a velocity of \[20\,\,m/s\] and frequency\[n\], then the distance between two consecutive nodes will be
A)
\[\frac{10}{n}\]
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B)
\[\frac{5}{n}\]
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C)
\[\frac{n}{5}\]
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D)
\[\frac{20}{n}\]
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question_answer 28) In order that the heat flow from one part of a solid to another part, the required property is
A)
uniform temperature
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B)
temperature gradient
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C)
density of radiant
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D)
density gradient
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question_answer 29) If the momentum of the body is increased\[100%\]. Then the percentage increase in the kinetic energy will be
A)
\[300%\]
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B)
\[150%\]
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C)
\[75%\]
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D)
\[200%\]
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question_answer 30) If\[|\overset{\to }{\mathop{A}}\,\times \overset{\to }{\mathop{B}}\,|=|\overset{\to }{\mathop{A}}\,.\overset{\to }{\mathop{B}}\,|\]then the angle between\[\overset{\to }{\mathop{A}}\,\]and\[\overset{\to }{\mathop{B}}\,\]is
A)
\[{{90}^{o}}\]
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B)
\[{{60}^{o}}\]
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C)
\[{{45}^{o}}\]
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D)
\[{{30}^{o}}\]
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question_answer 31) The potential barrier in the depletion layer is because of
A)
electrons
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B)
ions
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C)
holes
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D)
both (a) and (c)
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question_answer 32) A tank is filled with benzene to a height of\[120\,\,mm\]. The apparent depth of a needle lying at a bottom of the tank is measured by a microscope to be\[80\,\,mm\]. Then the refractive index of benzene will be
A)
\[4.5\]
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B)
\[3\]
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C)
\[.75\]
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D)
\[1.5\]
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question_answer 33) In an apparatus, the electric field was found to oscillate with an amplitude of\[18\,\,V/m\]. The magnitude of the oscillating magnetic field is
A)
\[6\times {{10}^{-8}}tesla\]
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B)
\[3\times {{10}^{-8}}tesla\]
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C)
\[12\times {{10}^{-8}}tesla\]
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D)
\[9\times {{10}^{-8}}tesla\]
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question_answer 34) The intensity of magnetic field is \[H\] and moment of magnet is\[M\]. Then the maximum potential energy will be
A)
\[4MH\]
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B)
\[3MH\]
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C)
\[2MH\]
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D)
\[MH\]
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question_answer 35) There are six identical cells each cell having an electromotive force (emf) of\[6\,\,volt\], which are joined in parallel. Then the resultant emf of the combination will be
A)
\[13\,\,V\]
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B)
\[\frac{1}{6}V\]
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C)
\[12\,\,V\]
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D)
\[6\,\,V\]
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question_answer 36)
In a given network capacitor \[{{C}_{1}}=10\,\,\mu F,\,\,{{C}_{2}}=\mu F,\], and\[{{C}_{3}}=4\,\,\mu F\]. The equivalent capacitance between \[PQ\] will be
A)
\[1.6\,\,\mu F\]
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B)
\[3.2\,\,\mu F\]
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C)
\[6.4\,\,\mu F\]
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D)
\[4.5\,\,\mu F\]
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question_answer 37) A tuning fork produces wave in a medium. If the temperature of the medium change, then which of the following will change?
A)
Time period
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B)
Amplitude
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C)
Frequency
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D)
Wavelength
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question_answer 38) A hydraulic lift is designed to lift cars of maximum mass of\[3000\,\,kg\]. The area of cross section of the piston carrying the load is\[4.25\times {{10}^{-2}}{{m}^{2}}\]. Then, the maximum pressure would the smaller piston have to bear, is
A)
\[7.82\times {{10}^{7}}\,\,N/{{m}^{2}}\]
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B)
\[6.92\times {{10}^{5}}\,\,N/{{m}^{2}}\]
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C)
\[13.76\times {{10}^{5}}\,\,N/{{m}^{2}}\]
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D)
\[9.63\,\,N/{{m}^{2}}\]
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question_answer 39) If the mass of the earth is \[80\] times of that of planet and diameter is double that of planet and \[g\] on earth\[9.8\,\,m/{{s}^{2}}\]. Then, the value of \[g\] on the planet will be
A)
\[0.49\,\,m/{{s}^{2}}\]
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B)
\[4.9\,\,m/{{s}^{2}}\]
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C)
\[0.98\,\,m/{{s}^{2}}\]
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D)
\[9.8\,\,m/{{s}^{2}}\]
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question_answer 40) The number of significant figures in \[5418000\] are
A)
\[7\]
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B)
\[6\]
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C)
\[5\]
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D)
\[4\]
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question_answer 41) According to Moseleys law, frequency of a spectral line in \[X-\]rays spectrum varies as
A)
fourth power of the atomic number of the element
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B)
square root of atomic number of the element
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C)
square of the atomic number of the element
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D)
atomic number of the element
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question_answer 42) If in Rams dens eye piece, the field lens and eye lens have focal length \[{{f}_{1}}\] and \[{{f}_{2}}\] respectively and separated by a distance \[d\] then
A)
\[{{f}_{1}}={{f}_{2}}\]and\[d=\frac{2}{3}{{f}_{1}}\]
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B)
\[{{f}_{1}}=3{{f}_{2}}\]and\[d={{f}_{1}}+{{f}_{2}}\]
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C)
\[{{f}_{1}}={{f}_{2}}\]and\[d={{f}_{1}}+{{f}_{2}}\]
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D)
\[{{f}_{1}}=\frac{2}{3}{{f}_{2}}\]and\[d=\frac{2}{3}{{f}_{1}}\]
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question_answer 43) The magnetic material, which moves from stronger to weaker part of the magnetic field, then it is known as
A)
anti-ferromagnetic
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B)
ferromagnetic
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C)
paramagnetic
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D)
diamagnetic
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question_answer 44) The magnetic field along axis at a point at a distance d of a short, bar magnet will be
A)
\[\frac{{{\mu }_{0}}}{3\pi }\times \frac{M}{{{d}^{3}}}\]
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B)
\[\frac{{{\mu }_{0}}}{\pi }\times \frac{M}{{{d}^{3}}}\]
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C)
\[\frac{{{\mu }_{0}}}{2\pi }\times \frac{M}{{{d}^{3}}}\]
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D)
\[\frac{{{\mu }_{0}}}{4\pi }\times \frac{M}{{{d}^{3}}}\]
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question_answer 45) Frequency range of audible sound is
A)
\[20\,\,MHz-200\,\,MHz\]
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B)
\[20\,\,kHz-20\,\,MHz\]
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C)
\[20\,\,Hz-20\,\,kHz\]
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D)
\[0\,\,Hz-200\,\,Hz\]
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question_answer 46) A tape-recorder records sound in the form of
A)
variable resistance on the tape
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B)
magnetic energy
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C)
magnetic field on the tape
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D)
electrical energy
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question_answer 47) A monoatomic gas is suddenly compressed to\[\frac{1}{8}\text{th}\]of its volume adiabatically. The ratio of first pressure of the gas to that of original pressure will be
A)
\[128\,\,times\]
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B)
\[32\,\,times\]
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C)
\[8\,\,times\]
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D)
\[16\,\,times\]
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question_answer 48) If in a wire of Youngs modulus\[Y\], longitudinal strain \[X\] is produced. Then the potential energy stored in its unit volume is
A)
\[0.5\,\,Y{{X}^{2}}\]
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B)
\[0.5\,\,{{Y}^{2}}X\]
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C)
\[Y{{X}^{2}}\]
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D)
\[2\,\,Y{{X}^{2}}\]
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question_answer 49) A boy of \[50\,\,kg\] is standing in a lift moving down with an acceleration\[9.8\,\,m/{{s}^{2}}\]. The apparent weight of the boy will be
A)
\[50/9.8\,\,N\]
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B)
\[50\times 9.8\,\,N\]
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C)
\[50\,\,N\]
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D)
\[zero\]
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question_answer 50) If \[C\] and \[R\] denote capacitance and resistance then the dimensions of \[CR\] are
A)
\[[{{M}^{0}}L{{T}^{0}}{{A}^{-1}}]\]
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B)
\[[ML{{T}^{6}}{{A}^{2}}]\]
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C)
\[[M{{L}^{0}}T{{A}^{-2}}]\]
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D)
\[[{{M}^{0}}{{L}^{0}}T{{A}^{0}}]\]
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question_answer 51) Galvanization process involves
A)
\[Zn\]
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B)
\[Cu\]
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C)
\[Ag\]
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D)
\[Fe\]
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question_answer 52) The number of water molecules in gypsum and plaster of Paris respectively are
A)
1/2 and 2
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B)
2 and ½
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C)
2 and 1
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D)
5 and 2
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question_answer 53) Which of the following will not displace hydrogen?
A)
\[Hg\]
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B)
\[Sn\]
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C)
\[Pb\]
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D)
\[Ba\]
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question_answer 54) A certain sample of gas has a volume of \[0.2\] litre measured at\[1\,\,atm\]. Pressure and\[{{0}^{o}}C\]. At the same pressure at \[{{273}^{o}}C\], its volume will be
A)
\[1.4\,\,litre\]
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B)
\[1.8\,\,litre\]
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C)
\[0.4\,\,litre\]
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D)
\[0.8\,\,litre\]
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question_answer 55) Hess law is applicable for the determination of the heat of
A)
transition
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B)
formation
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C)
reaction
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D)
all of these
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question_answer 56) The \[pH\] value of\[HCl({{10}^{-12}}M)\]is
A)
\[-7\]
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B)
\[7\]
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C)
\[12\]
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D)
\[-12\]
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question_answer 57) In radioactive decay, the emitted electrons, come from
A)
inner orbital of the atom
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B)
orbit having principle quantum number one
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C)
outer most orbit of the atom
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D)
nucleus of the atom
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question_answer 58) Hydrolysis of sucrose is called
A)
saponification
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B)
inversion
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C)
hydration
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D)
esterification
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question_answer 59) In carbonium ion the carbon bearing the positive charge is
A)
\[s{{p}^{2}}\] hybridized
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B)
\[s{{p}^{3}}d\] hybridized
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C)
\[sp\]hybridized
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D)
\[s{{p}^{3}}\]hybridized
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question_answer 60) The number of unpaired electrons in \[M{{n}^{+2}}\] is
A)
\[4\]
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B)
\[5\]
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C)
\[3\]
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D)
\[1\]
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question_answer 61) Which of the following is formed by the action of water on sodium peroxide?
A)
\[{{N}_{2}}\]
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B)
\[C{{O}_{2}}\]
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C)
\[{{H}_{2}}\]
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D)
\[{{O}_{2}}\]
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question_answer 62) The total structural isomers of \[{{C}_{4}}{{H}_{10}}O\] are
A)
\[2\]
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B)
\[7\]
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C)
\[5\]
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D)
\[4\]
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question_answer 63) The bond order of nitrogen molecule is:
A)
\[4\]
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B)
\[1\]
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C)
\[7\]
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D)
\[3\]
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question_answer 64) In laboratory silicon can be prepared by the reaction of
A)
by heating carbon in electric furnace
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B)
by heating potassium fluosilicate with potassium
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C)
silica with magnesium
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D)
none of these
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question_answer 65) The average kinetic energy of an ideal gas, per molecule at \[{{25}^{o}}C\] will be
A)
\[6.17\times {{10}^{-21}}J\]
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B)
\[6.17\times {{10}^{-20}}J\]
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C)
\[61.7\times {{10}^{-21}}J\]
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D)
\[7.16\times {{10}^{-20}}J\]
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question_answer 66) In a gas phase reaction: \[{{C}_{2}}{{H}_{4}}+{{H}_{2}}={{C}_{2}}{{H}_{6}}\], equilibrium constant can be expressed in
A)
\[mole.litr{{e}^{-1}}\]
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B)
\[mol{{e}^{2}}.litr{{e}^{-2}}\]
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C)
\[litre.mol{{e}^{-1}}\]
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D)
\[litr{{e}^{-1}}.mol{{e}^{-1}}\]
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question_answer 67) The frequency of a wave of light is\[12\times {{10}^{14}}{{s}^{-1}}\]. The wave number associated with this light is.
A)
\[5\times {{10}^{-7}}m\]
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B)
\[4\times {{10}^{-8}}c{{m}^{-1}}\]
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C)
\[2\times {{10}^{-7}}{{m}^{-1}}\]
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D)
\[4\times {{10}^{4}}c{{m}^{-1}}\]
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question_answer 68) Crystalline solids are
A)
plastic
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B)
sugar
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C)
rubber
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D)
glass
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question_answer 69) Which of the following is the example of chain growth polymer?
A)
Bakclite
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B)
Teflon
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C)
Terylene
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D)
Nylon\[-66\]
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question_answer 70) Which one of the following statements is true for a electrochemical cell?
A)
\[{{H}_{2}}\] is cathode and \[Cu\] is anode
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B)
Oxidation occurs at \[Cu\] electrode
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C)
\[{{H}_{2}}\] is anode and \[Cu\] is cathode
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D)
reduction occurs at \[{{H}_{2}}\] electrode
done
clear
View Answer play_arrow
question_answer 71) Leucine amino acids is the
A)
non-essential
done
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B)
aromatic
done
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C)
basic
done
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D)
essential
done
clear
View Answer play_arrow
question_answer 72) Electronic configuration\[1{{s}^{2}},\,\,2{{s}^{2}}2{{p}_{x}}^{1}2{{p}_{y}}^{1}2{{p}_{z}}^{1}\]represents which of the following elements?
A)
Hydrogen
done
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B)
Oxygen
done
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C)
Fluorine
done
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D)
Nitrogen
done
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View Answer play_arrow
question_answer 73) If the compound contains\[C,\,\,H\]and halogen. When \[C\] and \[H\] are to be estimated the combustion tube at the exist should contain a
A)
copper spiral
done
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B)
silver spiral
done
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C)
iron spiral
done
clear
D)
lead spiral
done
clear
View Answer play_arrow
question_answer 74) Which decolorize aqueous bromine and gives white fumes of \[HCl\] on reaction with\[PC{{l}_{5}}\]
A)
\[C{{H}_{3}}COC{{H}_{2}}CH=C{{H}_{2}}\]
done
clear
B)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}CH\]
done
clear
C)
\[C{{H}_{3}}CH=CHC{{H}_{2}}C{{H}_{2}}OH\]
done
clear
D)
\[C{{H}_{3}}OC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH\]
done
clear
View Answer play_arrow
question_answer 75) In\[C{{H}_{2}}C{{l}_{2}}\], the oxidation number of \[C\] is
A)
\[+2\]
done
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B)
\[-4\]
done
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C)
\[0\]
done
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D)
\[+4\]
done
clear
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question_answer 76) Alcohols of low molecular weight are
A)
soluble in water
done
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B)
soluble, in all solvents
done
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C)
insoluble in all solvents
done
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D)
soluble in water on heating
done
clear
View Answer play_arrow
question_answer 77) The glucose is an example of
A)
aldohexose
done
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B)
ketohexose
done
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C)
disaccharide
done
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D)
non-reducing sugar
done
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View Answer play_arrow
question_answer 78) A piece of wood was found to have \[{{C}^{14}}/{{C}^{12}}\] ratio \[0.7\] times that in a living plant. The time period when the plant died is (half-life of\[{{C}^{14}}=5760\,\,yr\])
A)
\[2980\,\,yr\]
done
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B)
\[3070\,\,yr\]
done
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C)
\[2966\,\,yr\]
done
clear
D)
\[2770\,\,yr\]
done
clear
View Answer play_arrow
question_answer 79) The rate of a reaction depends upon the
A)
concentration of reactant
done
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B)
pressure
done
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C)
volume
done
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D)
force
done
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View Answer play_arrow
question_answer 80) The rate constant of a first order reaction is \[3\times {{10}^{-6}}\] per second. If the initial concentration is \[0.10\,\,M\], the initial rate of reaction is
A)
\[3\times {{10}^{-6}}\,\,M{{s}^{-1}}\]
done
clear
B)
\[3\times {{10}^{-8}}\,\,M{{s}^{-1}}\]
done
clear
C)
\[3\times {{10}^{-5}}\,\,M{{s}^{-1}}\]
done
clear
D)
\[3\times {{10}^{-7}}\,\,M{{s}^{-1}}\]
done
clear
View Answer play_arrow
question_answer 81) Which of the following electronic configurations corresponds to an elements with the lowest ionization energy?
A)
\[1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}}\]
done
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B)
\[1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}},\,\,3{{s}^{1}}\]
done
clear
C)
\[1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{5}}\]
done
clear
D)
\[1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{3}}\]
done
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question_answer 82) The number of electrons and neutrons of an element is \[18\] and \[20\] respectively. Its mass number is
A)
\[37\]
done
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B)
\[38\]
done
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C)
\[9\]
done
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D)
\[22\]
done
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View Answer play_arrow
question_answer 83) The bond length between the hybridised carbon atom and other carbon atom is minimum in
A)
butane
done
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B)
propyne
done
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C)
propene
done
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D)
propane
done
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View Answer play_arrow
question_answer 84) Bleaching powder is obtained by treating chlorine with.
A)
\[CaC{{O}_{3}}\]
done
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B)
\[CaS{{O}_{4}}\]
done
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C)
\[CaO\]
done
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D)
\[Ca{{(OH)}_{2}}\]
done
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View Answer play_arrow
question_answer 85) The oxide which gives hydrogen peroxide \[({{H}_{2}}{{O}_{2}})\] on the treatment with a dilute acid \[({{H}_{2}}S{{O}_{4}})\] is
A)
\[Mn{{O}_{2}}\]
done
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B)
\[Pb{{O}_{2}}\]
done
clear
C)
\[N{{a}_{2}}{{O}_{2}}\]
done
clear
D)
\[Ti{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 86) Stainless steel contains iron and
A)
\[Fe+Cr+Ni\]
done
clear
B)
\[Cr+Ni\]
done
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C)
\[Cr+Zn\]
done
clear
D)
\[Zn+Pb\]
done
clear
View Answer play_arrow
question_answer 87) Highest percentage of carbon is found in
A)
anthracite
done
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B)
peat
done
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C)
lignite
done
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D)
bituminous
done
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View Answer play_arrow
question_answer 88) Which of the following has minimum freezing point?
A)
\[0.1\,\,M\,\,{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]
done
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B)
\[0.1\,\,M\,\,N{{H}_{4}}Cl\]
done
clear
C)
\[0.1\,\,M\,\,BaS{{O}_{4}}\]
done
clear
D)
\[0.1\,\,M\,\,A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\]
done
clear
View Answer play_arrow
question_answer 89) Tyndall effect is shown by
A)
solution
done
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B)
precipitation
done
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C)
sol
done
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D)
plasma
done
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View Answer play_arrow
question_answer 90) The oxidation number of chromium in potassium dichromate \[({{K}_{2}}C{{r}_{2}}{{O}_{7}})\], is
A)
\[+2\]
done
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B)
\[+6\]
done
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C)
\[+4\]
done
clear
D)
\[+8\]
done
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View Answer play_arrow
question_answer 91) \[AlC{{l}_{3}}\] acts as Lewis acid because it is
A)
an electron donor
done
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B)
proton donor
done
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C)
proton acceptor
done
clear
D)
electron pair acceptor
done
clear
View Answer play_arrow
question_answer 92) Acetylene hydrocarbons are acidic because
A)
acetylene contains least number of hydrogen atoms among the possible.
done
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B)
acetylene has only one hydrogen atom at each carbon atom
done
clear
C)
acetylene belongs to the class of alkynes with formula\[{{C}_{n}}{{H}_{2\,\,n-2}}\]
done
clear
D)
Sigma electron density of\[C-H\] bond in acetylene is nearer a carbon which has \[50%\,\,S-\]character
done
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View Answer play_arrow
question_answer 93) \[n-\]propyl alcohol and isopropyl alcohol are
A)
position isomers
done
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B)
chain isomers
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C)
tautomers
done
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D)
geometrical isomers
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View Answer play_arrow
question_answer 94) \[C{{H}_{3}}COCl\]reacts with
A)
\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]
done
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B)
salicylic acid
done
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C)
\[{{C}_{6}}{{H}_{5}}OH\]
done
clear
D)
all
done
clear
View Answer play_arrow
question_answer 95) \[x\xrightarrow{{}}\]Benzotrichloride\[+y,\,\,x\]and\[y\] respectively.
A)
benzene, benzaldehyde
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B)
toluene, benzaldehyde
done
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C)
toluene, benzoic acid
done
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D)
benzene, benzonic acid
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View Answer play_arrow
question_answer 96) Chemically soap is
A)
salt
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B)
acid
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C)
none
done
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D)
base
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question_answer 97) The process, in which no heat enters or leaves the system, is termed as
A)
isobaric
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B)
isochoric
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C)
adiabatic
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D)
isothermal
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question_answer 98) Which of the following information can be obtained on the basis of Le Chateliers principle?
A)
Dissociation constant of a weak acid
done
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B)
Entrophy change in a reaction
done
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C)
Shift in equilibrium position on changing value of a constant
done
clear
D)
Equilibrium constant of a chemical reaction
done
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View Answer play_arrow
question_answer 99) If enthalpies of formation for \[{{C}_{2}}{{H}_{4}}(g),\,\,C{{O}_{2}}(g)\]and\[{{H}_{2}}O\,\,(l)\]at\[{{25}^{o}}C\] and \[1\,\,atm\] pressure are\[52,\] \[-394\] and\[-286\,\,kJ/mol\] respectively, then total enthalpy of combustion is
A)
\[+1412\,\,kJ/mol\]
done
clear
B)
\[+141.2\,\,kJ/mol\]
done
clear
C)
\[-141.2\,\,kJ/mol\]
done
clear
D)
\[-14.2\,\,kJ/mol\]
done
clear
View Answer play_arrow
question_answer 100) Formaldehyde gives an additive product with methyl megnesium iodide which on aqueous hydrolysis gives?
A)
methyl alcohol
done
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B)
isopropyl alcohol
done
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C)
propyl alcohol
done
clear
D)
ethyl alcohol
done
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View Answer play_arrow
question_answer 101) Penicillium belongs to class
A)
Basidiomycetes
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B)
Ascomycetes
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C)
Duteromycetes
done
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D)
Phycomycetes
done
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question_answer 102) Atmospheric \[{{N}_{3}}\] fixation is carried on by
A)
Anabaena
done
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B)
Funaria
done
clear
C)
Chlamydomonas
done
clear
D)
none of these
done
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View Answer play_arrow
question_answer 103) The protein coat of virus is known as
A)
chromomere
done
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B)
capsid
done
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C)
chromophore
done
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D)
capsomere
done
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question_answer 104) In mitochondria cristae act as sites for
A)
lipid synthesis
done
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B)
protein synthesis
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C)
fat synthesis
done
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D)
oxidation reduction reaction
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View Answer play_arrow
question_answer 105) During \[DNA\] replication, the term leading strand is applied to the one which replicates in
A)
\[5\to 3\]direction discontinuously
done
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B)
\[3\to 5\]direction continuously
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C)
\[5\to 3\]direction continuously
done
clear
D)
none of these
done
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View Answer play_arrow
question_answer 106) Insectivorous plants eat the insects for
A)
phosphorus
done
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B)
calcium
done
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C)
nitrogen
done
clear
D)
sulphur
done
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question_answer 107) Which pigment responsible for photomorphogenetic response?
A)
Phytochrome
done
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B)
Chlorophyll-a
done
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C)
Chlorophyll-b
done
clear
D)
Xanthophyll
done
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View Answer play_arrow
question_answer 108) Phosphorus is a structural element in
A)
nucleotide
done
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B)
fat
done
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C)
lipid
done
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D)
starch
done
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View Answer play_arrow
question_answer 109) The sun loving plants are called
A)
xerophyte
done
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B)
hydrophyte
done
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C)
heliophytic
done
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D)
halophytes
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View Answer play_arrow
question_answer 110) Anaerobic breakdown of biomass produced biogas by methanogenic bacteria. It is a
A)
two-step process
done
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B)
one step process
done
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C)
four step process
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D)
three step process
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View Answer play_arrow
question_answer 111) The name of Temin and Baltimore is associated with
A)
DNA replication
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B)
reverse transcription
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C)
photorespiration
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D)
RNA synthesis
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question_answer 112) The technique of growing plants, in water culture, is called
A)
tissue culture
done
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B)
aero culture
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C)
hydroponics
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D)
cell culture
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View Answer play_arrow
question_answer 113) What sound level is considered hazardous noise pollution?
A)
Above\[80\,\,dB\]
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B)
Below\[60\,\,dB\]
done
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C)
Above\[130\,\,dB\]
done
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D)
Above\[140\,\,dB\]
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View Answer play_arrow
question_answer 114) The soil erosion can be prevented by
A)
deforestation
done
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B)
afforestation
done
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C)
over grazing
done
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D)
none of these
done
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View Answer play_arrow
question_answer 115) In plant disease control, the latest trend is
A)
chemical control
done
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B)
mechanical control
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C)
biological control
done
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D)
none of these
done
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question_answer 116) Which type of DNA is found in bacteria?
A)
Helical DNA
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B)
Membrane bound DNA
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C)
Straight DNA
done
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D)
Circular free DNA
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View Answer play_arrow
question_answer 117) Hargovind Khorana was awarded the Nobel Prize for
A)
gene synthesis
done
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B)
discovery of bacteria
done
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C)
genetic code
done
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D)
protein synthesis
done
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question_answer 118) The enzyme that converts glucose to glucose 6-phosphate is
A)
phosphorylase
done
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B)
phosphatase
done
clear
C)
hexokinase
done
clear
D)
None of these
done
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View Answer play_arrow
question_answer 119) Photophosphorylation was discovered by
A)
Hill
done
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B)
Arnon
done
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C)
Jolly
done
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D)
Dixon
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question_answer 120) Which type of RNA molecule is essential for protein synthesis?
A)
\[s-RNA\]
done
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B)
\[t-RNA\]
done
clear
C)
\[m-RNA\]
done
clear
D)
\[r-RNA\]
done
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View Answer play_arrow
question_answer 121) The sphere of living matter together with water, air and soil on earths surface is called
A)
lithosphere
done
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B)
xerosphere
done
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C)
biosphere
done
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D)
hydrosphere
done
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question_answer 122) Water pollution is caused due to
A)
industrial effluents
done
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B)
sewage and other wastes
done
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C)
agricultural discharges
done
clear
D)
all of these
done
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View Answer play_arrow
question_answer 123) The ecosystem of a pond is referred as
A)
xeric
done
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B)
lotic
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C)
lentic
done
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D)
none of these
done
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question_answer 124) The pollutants released by jet planes are
A)
smog
done
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B)
fog
done
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C)
aerosols
done
clear
D)
none of these
done
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question_answer 125) Which is the importance of molybdenum in plants metabolism?
A)
Sulphur reduction
done
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B)
Carbon assimilation
done
clear
C)
Nitrate reduction
done
clear
D)
None of these
done
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View Answer play_arrow
question_answer 126) Tyiakoids are present in
A)
chloroplast
done
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B)
nucleus
done
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C)
mitochondria
done
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D)
peroxisome
done
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question_answer 127) Which type of enzyme is present in lysosome?
A)
ATPase
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B)
Hydrolytic
done
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C)
Lyase
done
clear
D)
None of these
done
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question_answer 128) Which is a single membrane structure?
A)
Chloroplast
done
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B)
Lysosomes
done
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C)
Mitochondria
done
clear
D)
None of these
done
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question_answer 129) Which plant virus has DNA in it?
A)
Tomato mosaic virus
done
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B)
Cauliflower mosaic virus
done
clear
C)
Tobacco mosaic virus
done
clear
D)
Potato mosaic virus
done
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View Answer play_arrow
question_answer 130) Rough E. R. differs from smooth E.R. due to the presence of
A)
golgi body
done
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B)
ribosomes
done
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C)
nucleus
done
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D)
DNA
done
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question_answer 131) Mycorrhiza helps in absorption of
A)
nutrient
done
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B)
calcium
done
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C)
water
done
clear
D)
none of these
done
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question_answer 132) The real force responsible for the movement of water from one cell to other cell, is mainly through
A)
\[W.P.\]
done
clear
B)
\[T.P.\]
done
clear
C)
\[O.P.\]
done
clear
D)
\[D.P.D.\]
done
clear
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question_answer 133) Embryo sac is also known as
A)
microsporangium
done
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B)
micro gametophyte
done
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C)
megagametophyte
done
clear
D)
none of these
done
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question_answer 134) Which is a social foresting species?
A)
Leucaena leucocephala
done
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B)
Tectona grandis
done
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C)
Mangifera indica
done
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D)
Rosa indica
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question_answer 135) If a dry wooden stakes driven into a small crack in a rock and then soaked, can develop enough pressure to split the rock. Such pressure is built up through the phenomenon of
A)
plasmolysis
done
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B)
imbibition
done
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C)
deplasmolysis
done
clear
D)
none of these
done
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question_answer 136) Which phase is responsible for DNA replication?
A)
\[S-\]phase
done
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B)
\[{{G}_{2}}-\]phase
done
clear
C)
\[{{G}_{1}}-\]phase
done
clear
D)
All of these
done
clear
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question_answer 137) Fungus, without any mycelium is
A)
Saccharomyces
done
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B)
Puccinia
done
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C)
Agariciis
done
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D)
Altemaria
done
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question_answer 138) Mesarch xylem is commonly found in
A)
fungi
done
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B)
ferns
done
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C)
bryophytes
done
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D)
algae
done
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question_answer 139) The process of cytokinesis shows the division of
A)
chromatids
done
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B)
cytoplasm
done
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C)
nucleus
done
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D)
chromosomes
done
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question_answer 140) Turgor pressure becomes equal to the wall pressure when
A)
water enters the cell
done
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B)
water leaves the cell
done
clear
C)
no exchange of water takes place
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 141) Which family have diadelphous condition?
A)
Gramineae
done
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B)
Rosaceae
done
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C)
Liliaceae
done
clear
D)
Papilionaceae
done
clear
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question_answer 142) Tyioses thickenings are seen in
A)
ray parenchyma and xylem cells
done
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B)
sclerenchyma
done
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C)
ray parenchyma only
done
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D)
collenchyma
done
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question_answer 143) Which becterium is associated with the roots of legumes?
A)
Spirogyra
done
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B)
Rhizobium
done
clear
C)
Clostridium
done
clear
D)
Nostoc
done
clear
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question_answer 144) Binomial system of nomenclature was given by
A)
Linnaeus
done
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B)
Theophrastus
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C)
Hooker
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D)
Bentham
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question_answer 145) In Cycas coralloid roots has
A)
Clostridium
done
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B)
Rhizobium
done
clear
C)
Mycorrhiza
done
clear
D)
Anabaena
done
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question_answer 146) Sucking roots are present in the plant
A)
Betel
done
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B)
Cuscuta
done
clear
C)
Mangifera
done
clear
D)
Solarium
done
clear
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question_answer 147) In gram positive bacteria cell wall is made up of
A)
cellulose
done
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B)
protein
done
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C)
murein
done
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D)
lipid
done
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question_answer 148) For ascent of sap, most acceptable theory is
A)
atmospheric theory
done
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B)
cohesion and transpiration pull theory
done
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C)
root pressure theory
done
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D)
pulsation theory
done
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View Answer play_arrow
question_answer 149) In Datura the fruit is
A)
septicidal capsule
done
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B)
porous capsule
done
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C)
septifragal capsule
done
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D)
loculicidal capsule
done
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question_answer 150) The bread wheat is
A)
diploid
done
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B)
triploid
done
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C)
tetraploid
done
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D)
hexaploid
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question_answer 151) If the rate of addition of new members increases with respect to the individual host of the same population, then the graph obtained has
A)
declined growth
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B)
exponential growth
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C)
zero population growth
done
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D)
none of these
done
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question_answer 152) Infection of Enterobius is caused to man is by
A)
inoculation
done
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B)
contamination
done
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C)
piercing
done
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D)
flying
done
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question_answer 153) Microfilaria is found in the peripheral blood of man during
A)
day time
done
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B)
night time
done
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C)
morning
done
clear
D)
evening
done
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question_answer 154) The infective stage of Entamoeba histolytica is
A)
cysi
done
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B)
egg
done
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C)
spore
done
clear
D)
trophozoite
done
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question_answer 155) Which of the following is a communicable disease?
A)
Diabetes
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B)
Hypertension
done
clear
C)
Kwasiorkor
done
clear
D)
Diphtheria
done
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question_answer 156) The disease filaria is transmitted by
A)
tse-tse fly
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B)
sandfly
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C)
Anopheles
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D)
Culex
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question_answer 157) In Entamoeba histolytica, the presence of chromatid bodies is characteristic of
A)
precystic stage
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B)
trophozoite stage
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C)
mature quadrinucleate cyst
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D)
none of these
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question_answer 158) Euploidy is best explained by
A)
exact multiple of a haploid set of chromosomes
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B)
one chromosome less than the haploid set of chromosomes
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C)
one chromosome more than the haploid set of chromosomes
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D)
one chromosome more than the diploid set of chromosomes
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question_answer 159) A man known to be victim of haemophilia marries a normal women whose father was known to be a bleeder. Then it is expected that
A)
all their children will be bleeders
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B)
one-fourth of their children will be bleeders
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C)
half of their children will be bleeders
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D)
one-tenth of their children will be bleeders
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question_answer 160) If a boys father has haemophilia and his mother has one gene for haemophilia, what is the chance that the boy will inherit the disease?
A)
\[100%\]
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B)
\[75%\]
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C)
\[50%\]
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D)
done
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question_answer 161) The adaptive similarities in different animals, found in the same habitat, is called
A)
adaptive radiation
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B)
convergent evolution
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C)
parallel evolution
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D)
retrogressive evolution
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question_answer 162) Arboreal mammals have
A)
flying character
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B)
burrowing character
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C)
climbing character
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D)
jumping character
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question_answer 163) The egg of a rabbit is
A)
microlecithal
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B)
megalccithal
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C)
lelolecithal
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D)
alccithal
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question_answer 164) The hormone that regulates the calcium level of blood is
A)
parathormone
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B)
thyroxine
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C)
insulin
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D)
glucagon
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question_answer 165) Hormone, which helps in metamorphosis in insects, is
A)
pheromone
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B)
thyroxine
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C)
ecdysone
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D)
all of these
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question_answer 166) In the development of the human body, the ectoderm is responsible for the formation of
A)
sweat glands
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B)
nervous system
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C)
lens of the eye
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D)
all of these
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question_answer 167) In human zygote, the male sex is determined by whether
A)
mother gets good nutrition
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B)
father is stronger than mother
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C)
strength of male chromosome
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D)
required composition of chromosomes
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question_answer 168) Polar bodies are produced during the formation of
A)
sperm
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B)
oogonium
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C)
spermatocytes
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D)
secondary oocyte
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question_answer 169) Melanocyte stimulating hormone (MSH) is secreted by
A)
anterior lobe of pituitary
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B)
posterior lobe of pituitary
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C)
intermediate lobe of pituitary
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D)
not by any lobe of pituitary
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question_answer 170) The two lateral ventricles, in the brain of frog, communicate with the third ventricle throught
A)
rhinocoel
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B)
sylvius
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C)
foramen magnum
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D)
foramen of monro
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question_answer 171) The respiratory centre, which regulates respiration, is located in
A)
cerebellum
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B)
the vagus nerve
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C)
cerebral peduncle
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D)
medulla oblongata
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question_answer 172) The unit of photoreception, in a compound eye of cockroach and other insects, is
A)
ctenidium
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B)
osphradium
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C)
ommatidium
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D)
rhabdome
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question_answer 173) The skull of a bird is
A)
dicondylic
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B)
mono condylic
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C)
amphicondylic
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D)
none of these
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question_answer 174) Astragalus and calcanium are present in
A)
fore limb
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B)
hind limb
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C)
scapula
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D)
clavicle
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question_answer 175) In micturition
A)
urethra relaxes
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B)
ureter contracts
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C)
ureter relaxes
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D)
urethra contracts
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question_answer 176) Two examples in which the nitrogenous wastes are excreted from body in the form of uric acid are
A)
birds and/lizards
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B)
mammals and mollusk
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C)
insects and bony fishes
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D)
frogs and cartilaginous fishes
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question_answer 177) Water reabsorption in kidney is controlled by
A)
GH
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B)
ADH
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C)
oxytocin
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D)
aldosterone
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question_answer 178) The abiogenesis occured about how many billion years ago?
A)
1.2 billion
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B)
1.5 billion
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C)
2.5 billion
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D)
3.5 billion
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question_answer 179) Development of patagia in animals is an
A)
cave adaptation
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B)
volant adaptation
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C)
aquatic adaptation
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D)
arboreal adaptation
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question_answer 180) Binomial nomenclature indicates
A)
genus and family
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B)
genus and species
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C)
phylum and genus
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D)
species and sub-species
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question_answer 181) The site of EMP pathway in cell is
A)
nucleus
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B)
peroxisome
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C)
cytoplasm
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D)
mitochondria
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question_answer 182) The mode of DNA replication is semi conservative. It was first demonstrated by
A)
Tayler
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B)
Khorana
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C)
Meselson and Stahl
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D)
Watson and Crick
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question_answer 183) How many base pairs are present in one turn of DNA?
A)
10
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B)
9
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C)
11
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D)
12
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question_answer 184) The induced fit theory to enzyme action was given by
A)
Koshland
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B)
Sumner
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C)
Fischer
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D)
Hershey and Chase
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question_answer 185) Several buds may occur in a single mother Hydra, at a time. Then
A)
all of them are equally old
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B)
the one towards the oral end is older
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C)
the one towards the aboral end is older
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D)
the one towards the aboral end is younger
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question_answer 186) Hermit crab and sea anemone relationship is
A)
mutualism
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B)
symbiosis
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C)
commensalism
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D)
none of these
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question_answer 187) How are Annelida advanced over Nematoda?
A)
Closed circulation
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B)
True coelom
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C)
Metameric segmentation
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D)
All of these
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question_answer 188) The type of vertebrae in sub-order ophidia is
A)
amphicoelous
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B)
acoelous
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C)
haterocoelous
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D)
procoelous
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question_answer 189) Which of the following is the burrowing marsupial?
A)
Thylacinus
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B)
Notoryctus
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C)
Myrmecobius
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D)
Phascolarctes
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question_answer 190) Ambulacral grooves are absent in the living forms of the class
A)
Crinoidea
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B)
Ophiuroidea
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C)
Asteroidea
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D)
Echinodermata
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question_answer 191) The transgenic animals are those which have
A)
foreign RNA in all its cells
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B)
foreign DNA in all its cells
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C)
foreign DNA in some of its cells
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D)
both a and c
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question_answer 192) Fats are richly found in
A)
alveolar tissue
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B)
lymph glands
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C)
adipose tissue
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D)
liver cells
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question_answer 193) The muscles associated with the heart of insects are
A)
alary
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B)
radial
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C)
striped
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D)
pericardial
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question_answer 194) The endothelium of blood vessel is composed of
A)
cuboidal epithelium
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B)
squamous epithelium
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C)
columnar epithelium
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D)
ciliated epithelium
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question_answer 195) What is common among amylase, rennin and trypsin?
A)
These all are proteins
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B)
These act at a pH lower than 7
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C)
These are produced in stomach
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D)
These all are proteolytic enzymes
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question_answer 196) The release of pancreatic juice from the pancreas, in a mammal, is stimulated by
A)
trypsinogen
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B)
secretin
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C)
entero kinase
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D)
choleocystokinin
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question_answer 197) The largest quantity of air that can be expired, after maximal inspiration effort, is called
A)
tidal volume
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B)
vital capacity
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C)
residual volume
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D)
total lung volume
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question_answer 198) Regarding blood circulation, it may by said that in Pheretima the dorsal vessel is a
A)
collecting vessel in first, two segments and distributing vessel in other
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B)
distributing vessel in first, five segments and distributing vessel in other
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C)
collecting vessel in first thirteen segments and distributing vessel in intestinal region
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D)
distributing vessel in first thirteen segments and collecting vessel in intestinal region
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question_answer 199) At high altitudes, the RBCs in human blood
A)
increases in size
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B)
decreases in size
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C)
increases in number
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D)
decreases in number
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question_answer 200) Each spinal nerve in a mammal arises from the spinal cord by two roots, a dorsal and a ventral. Of these the ventral root is composed of
A)
somatic motor and vesceral motor fibres
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B)
somatic sensory and vesceral motor fibres
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C)
somatic motor and visceral sensory fibres
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D)
somatic sensory and visceral sensory fibres
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