question_answer 1) In which process the pV indicator diagram is a straight line parallel to volume axis
A)
isothermal
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B)
isobaric
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C)
irreversible
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D)
adiabatic
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question_answer 2) A body executes simple harmonic motion under the action of force F1 with a time period \[\frac{4}{5}\] s. If die force is changed to F2 it executes simple harmonic motion with time period \[\frac{3}{5}\] s. If both forces F1 and F2 act simultaneously in the same direction on the body, its time period will be
A)
\[\frac{12}{25}\,s\]
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B)
\[\frac{24}{25}\,s\]
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C)
\[\frac{35}{24}\,s\]
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D)
\[\frac{15}{12}\,s\]
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question_answer 3) A diatomic gas is heated at constant pressure. What fraction of the heat energy is used to increase the internal energy?
A)
\[\frac{3}{5}\]
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B)
\[\frac{3}{7}\]
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C)
\[\frac{5}{7}\]
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D)
\[\frac{5}{9}\]
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question_answer 4) In interference pattern, the energy is
A)
created at the maximum
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B)
destroyed at the minimum
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C)
conserved but redistributed
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D)
All of the above
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question_answer 5) A red flower kept in green light will appear
A)
red
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B)
yellow
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C)
black
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D)
white
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question_answer 6) A band playing music at a frequency f is moving towards a wall at a speed vb. A motorist is following the band with a speed vm. If v be the speed of the sound, the expression for beat frequency heard by motorist is
A)
\[\frac{v+{{v}_{m}}}{v+{{v}_{b}}^{2}}f\]
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B)
\[\frac{v+{{v}_{m}}}{v-{{v}_{b}}}f\]
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C)
\[\frac{2{{v}_{b}}(v+{{v}_{m}})}{{{v}^{2}}-{{v}_{b}}^{2}}f\]
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D)
\[\frac{2{{v}_{m}}(v+{{v}_{b}})}{{{v}^{2}}-{{v}_{m}}^{2}}f\]
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question_answer 7) An eye specialist prescribes spectacles having a combination of a convex lens of focal length 40 cm in contact with a concave lens of focal length 25 cm. The power of this lens combination will be
A)
+ 1.5 D
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B)
- 1.5 D
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C)
+ 6.67 D
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D)
- 6.67 D
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question_answer 8) When light wave suffers reflection at the interface between air and glass, the change of phase of reflected wave is equal to
A)
zero
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B)
n / 2
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C)
n
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D)
2 n
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question_answer 9) A lens behaves as a converging lens in air and diverging lens in water. The refractive index of the material of the lens is
A)
equal to that of water
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B)
less than that of water
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C)
greater than that of water
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D)
Nothing can be predicted
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question_answer 10) The work function of a substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately
A)
540 nm
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B)
400 nm
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C)
310 nm
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D)
220 nm
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question_answer 11) The electron emitted in beta radiation originates from
A)
inner orbits of atoms
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B)
free electron existing in nuclei
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C)
decay of neutron in the nucleus
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D)
phoron escaping from the nucleus
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question_answer 12) If elements with principal quantum number n > 4 were not allowed in nature, then the number of possible elements would be
A)
32
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B)
60
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C)
18
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D)
4
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question_answer 13) The magnifying power of telescope is high if
A)
both objective and eye-piece have short focal length
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B)
both objective and eye-piece have long focal length
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C)
the objective has a long focal length and the eye-piece has a short focal length
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D)
the objective has a short focal length and the eye piece has a long focal length
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question_answer 14) What is the current through an ideal pn - junction diode shown in figure below?
A)
Zero
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B)
10 mA
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C)
20 mA
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D)
50 mA
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question_answer 15) The output form of a full wave rectifier is
A)
an AC voltage
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B)
a DC voltage
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C)
zero
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D)
a pulsating unidirectional voltage
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question_answer 16) Suitable impurities are added to a semiconductor depending on its use. This is done to
A)
increase its life
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B)
enable it to withstand high voltage
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C)
increase its electrical conductivity
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D)
increase its electrical resistivity
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question_answer 17) Absorption of X-rays is maximum in which of the following material sheets of same thickness?
A)
Cu
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B)
Au
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C)
Be
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D)
Pb
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question_answer 18) Lenz's law is a consequence of the law of conservation of
A)
charge
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B)
mass
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C)
momentum
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D)
energy
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question_answer 19) A magnetic needle is kept in a non-uniform magnetic field. It experience
A)
a force only but not a torque
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B)
a force and torque both
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C)
a torque only but not a force
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D)
neither a torque nor a force
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question_answer 20) The magnitude of magnetic induction for a current carrying toroid of uniform cross - section is
A)
uniform over the whole cross-section
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B)
maximum on the outer edge
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C)
maximum on the inner edge
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D)
maximum at the centre of cross-section
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question_answer 21) Isogonic lines are those for which
A)
declination is the same at all places on the line
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B)
angle of dip is the same at the place on die line
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C)
die value of horizontal component of earth's magnetic field is the same
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D)
All of the above
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question_answer 22) An electric current passes through a long straight wire. At a distance 5 cm from the wire, the magnetic field is B. The field at 20 cm from the wire would be
A)
2 B
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B)
B/4
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C)
B/2
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D)
B
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question_answer 23) An ammeter and a voltmeter of resistance R are connected in series to an electric cell of negligible internal resistance. Their readings are A and V respectively. If another resistances is connected in parallel with the voltmeter, then
A)
both A and V will increase
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B)
both A and V will decrease
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C)
A will decrease and V will increase
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D)
A will increase and V will decrease
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question_answer 24) The core of transformer is laminated to reduce the effect of
A)
copper losses
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B)
flux leakage
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C)
hysteresis loss
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D)
eddy current
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question_answer 25) The average power dissipation in pure inductance is
A)
\[\frac{1}{2}L{{I}^{2}}\]
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B)
\[2L{{I}^{2}}\]
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C)
\[\frac{1}{4}L{{I}^{2}}\]
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D)
zero
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question_answer 26) The charge given to any conductor resides on its outer surface, because
A)
the free charge tends to be in its minimum potential energy state
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B)
the free charge tends to be in its minimum kinetic energy state
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C)
the free charge tends to be in its maximum potential energy state
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D)
the free charge tends to be in its maximum kinetic energy state
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question_answer 27) identical mercury droplets charged to the same potential V coalesce to form a single bigger drop. The potential of new drop will be
A)
\[\frac{V}{n}\]
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B)
nV
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C)
nV2
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D)
n2/3 V
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question_answer 28) For protecting sensitive equipment from external magnetic field, it should be
A)
wrapped with insulation around it when passing current through it
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B)
placed inside an iron can
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C)
surrounded with Cu sheet
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D)
placed inside aluminium can
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question_answer 29) The potential difference across the terminals of a battery is 50 V when 11 A current is drawn and 60 V when 1 A current is drawn. The emf and the internal resistance of the battery are
A)
62 V, 2\[\Omega \]
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B)
63 V, 1\[\Omega \]
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C)
61 V, 1\[\Omega \]
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D)
64 V, 2\[\Omega \]
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question_answer 30) Four resistances 100, 50, 70 and 30 are connected so that they form the sides of a rectangle AB, BC, CD, and DA respectively. Another resistance of 100 is connected across the diagonal AC. The equivalent resistance between A and B is
A)
20
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B)
50
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C)
7 ft
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D)
100
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question_answer 31) The potential energy of a charged parallel plate capacitor is U0. If a slab of dielectric constant K is inserted between the plates, then the new potential energy will be
A)
\[\frac{{{U}_{0}}}{K}\]
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B)
\[{{U}_{0}}{{K}^{2}}\]
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C)
\[\frac{{{U}_{0}}}{{{K}^{2}}}\]
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D)
\[{{U}_{0}}^{2}\]
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question_answer 32) Two similar heater coils separately take 10 min to boil a certain amount of water. If both coils are connected in series, time taken to boil the same amount of water will be
A)
15 min
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B)
20 min
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C)
7.5 min
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D)
25 min
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question_answer 33) Same current is being passed through a copper voltameter and a silver voltameter. The rate of increase in weights of the cathode of the two voltameters will be proportional to
A)
atomic masses
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B)
atomic number
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C)
relative densities
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D)
None of the above
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question_answer 34) Two equal and opposite charge (+ q and - q) are situated at x distance from each other, the value of potential at very far point will depend upon
A)
only on q
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B)
only on x
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C)
on qx
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D)
on \[\frac{q}{x}\]
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question_answer 35) In a potentiometer of one- metre length, an unknown emf voltage source is balanced at 60 cm length of potentiometer wire, while a 3 V battery is balanced at 45 cm length. Then the emf of the unknown voltage source is
A)
3 V
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B)
2.25 V
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C)
4 V
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D)
4.5 V
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question_answer 36) A car travelling on a straight path moves with uniform velocity v1 for some time and with velocity v2 for next equal time, the average velocity is given by
A)
\[\sqrt{{{v}_{1}}{{v}_{2}}}\]
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B)
\[\left( \frac{{{v}_{1}}+{{v}_{2}}}{2} \right)\]
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C)
\[{{\left( \frac{1}{{{v}_{1}}}+\frac{1}{{{v}_{2}}} \right)}^{-1}}\]
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D)
\[2{{\left( \frac{1}{{{v}_{1}}}+\frac{1}{{{v}_{2}}} \right)}^{-1}}\]
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question_answer 37) A particle of mass m moves in a circular path radius r under the action of a force \[\frac{m{{v}^{2}}}{r}\].The work done during its motion over half of the circumference of the circular path will be
A)
\[\left( \frac{m{{v}^{2}}}{r} \right)\times 2\pi r\]
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B)
\[\left( \frac{m{{v}^{2}}}{r} \right)\times \pi r\]
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C)
\[\frac{\left( 2\pi r \right)}{\left( \frac{m{{v}^{2}}}{r} \right)}\]
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D)
zero
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question_answer 38) Dimensions of self inductance are
A)
[MLT-2A-3]
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B)
[ML-2T-1A-2]
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C)
[ML2 T-2 A-2]
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D)
[ML2T-2A-1]
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question_answer 39) A car of mass m is moving with momentum p. If\[\mu \] be the coefficient of friction between the tyres and the road, what will be stopping distance due to friction alone?
A)
\[\frac{{{p}^{2}}}{2\mu g}\]
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B)
\[\frac{{{p}^{2}}}{2m\mu g}\]
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C)
\[\frac{{{p}^{2}}}{2{{m}^{2}}\mu g}\]
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D)
\[\frac{{{p}^{2}}}{2mg}\]
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question_answer 40) A neutron is moving with velocity u. It collides head on and elastically with an atom of mass number A. If the initial kinetic energy of the neutron be E, how much kinetic energy will be retained by the neutron after collision?
A)
\[{{\left( \frac{A}{A+1} \right)}^{2}}E\]
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B)
\[\frac{A}{{{\left( A+1 \right)}^{2}}}E\]
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C)
\[{{\left( \frac{A-1}{A+1} \right)}^{2}}E\]
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D)
\[\frac{A-1}{{{\left( A+1 \right)}^{2}}}E\]
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question_answer 41) If the momentum of a particle is increased by 20%, then its kinetic energy increases by
A)
44%
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B)
66%
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C)
80%
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D)
30%
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question_answer 42) Three point masses, each of mass M are placed at the comers of an equilateral triangle of side L. The moment of inertia of this system about an axis along one side of the triangle is
A)
\[\frac{1}{3}M{{L}^{2}}\]
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B)
\[\frac{3}{2}M{{L}^{2}}\]
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C)
\[\frac{3}{4}M{{L}^{2}}\]
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D)
ML2
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question_answer 43) A thin circular ring of mass M and radius R is rotating about its axis with a constant angular velocity\[\omega \]. Two objects, each of mass m, are connected gently to the ring. The ring now rotates with an angular velocity
A)
\[\frac{\omega M}{M+m}\]
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B)
\[\frac{\omega \left( M-2M \right)}{\left( M+2m \right)}\]
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C)
\[\frac{\omega \left( M+2m \right)}{M}\]
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D)
\[\frac{\omega M}{M+2m}\]
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question_answer 44) A satellite of mass m is moving in a circular orbit of radius R above the surface of a planet of mass M and radius R. The amount of work done to shift the satellite to higher orbit of radius is
A)
\[mgR\]
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B)
\[\frac{mgR}{6}\]
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C)
\[\frac{mMgR}{\left( M+m \right)}\]
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D)
\[\frac{mMgR}{6\left( M+m \right)}\]
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question_answer 45) In a gravitational force field a particle is taken from A to B along different paths as shown in figure. Then
A)
work done along path I will be maximum
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B)
work done along path III wilt be maximum
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C)
work done along path IV will be maximum
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D)
work done along all the paths will be the same
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question_answer 46) A wire of length L and area of cross-section A is made of material of Young's modulus Y. If the wire is stretched by the amount x, the work done is
A)
\[\frac{YA{{x}^{2}}}{2L}\]
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B)
\[YA{{x}^{2}}L\]
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C)
\[\frac{YAx}{2L}\]
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D)
\[\frac{YA{{x}^{2}}}{L}\]
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question_answer 47) The potential energy of a molecule increases when it is brought to the surface from the interior of a liquid because
A)
at the free liquid surface gravitational potential energy is more
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B)
work has to be done to move a molecule to the surface against the repulsive component of the inter molecular forces
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C)
work has to be done to move a molecule to the surface against the attraction from Other molecules
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D)
the temperature of the liquid surface is always more than that of the interior of the liquid
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question_answer 48) When a van der Waals' gas undergoes free expansion then its temperature
A)
decreases
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B)
increases
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C)
does not change
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D)
depends upon the nature of the gas
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question_answer 49) A cylinder of radius r and of thermal conductivity K1 is surrounded by a cylindrical shell of inner radius r and outer radius 2r made of a material of thermal conductivity K2. The effective thermal conductivity of the system if
A)
\[\frac{1}{3}\left( {{K}_{1}}+2{{K}_{2}} \right)\]
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B)
\[\frac{1}{2}\left( 2{{K}_{1}}+3{{K}_{2}} \right)\]
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C)
\[\frac{1}{4}\left( 3{{K}_{2}}+2{{K}_{1}} \right)\]
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D)
\[\frac{1}{4}\left( {{K}_{1}}+3{{K}_{2}} \right)\]
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question_answer 50) The tungsten filament of an electric lamp has a surface area A and a power rating P. If the emissivity of the filament is i; and a is Stefan's constant, the steady temperature of the filament will be
A)
\[T={{\left( \frac{P}{A\,\varepsilon \,\sigma } \right)}^{4}}\]
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B)
\[T=\left( \frac{P}{A\,\varepsilon \,\sigma } \right)\]
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C)
\[T={{\left( \frac{A\,\varepsilon \,\sigma }{P} \right)}^{\frac{1}{4}}}\]
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D)
\[T={{\left( \frac{P}{A\,\varepsilon \,\sigma } \right)}^{\frac{1}{4}}}\]
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question_answer 51) The pH value of \[1\times {{10}^{-4}}\text{M}\,\text{NAOH}\]solution is
A)
4
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B)
10
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C)
6
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D)
between 6-7
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question_answer 52) The C?H bond distance is the longest in
A)
\[{{C}_{2}}{{H}_{2}}\]
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B)
\[{{C}_{2}}{{H}_{4}}\]
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C)
\[{{C}_{2}}{{H}_{4}}B{{r}_{2}}\]
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D)
\[{{C}_{6}}{{H}_{6}}\]
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question_answer 53) Which represents the correct order of first ionisation potential of third period elements?
A)
\[Na\text{ }>\text{ }Mg\text{ }>\text{ }Al\text{ }>\text{ }Si\]
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B)
\[Na\text{ }<\text{ }Mg\text{ }<\text{ }Al\text{ }<\text{ }Si\]
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C)
\[Na\text{ }<\text{ }Si\text{ }<\text{ }Al\text{ }<\text{ }Mg\]
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D)
\[Na\text{ }<\text{ }Al\text{ }<\text{ }Mg\text{ }<\text{ }Si\]
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question_answer 54) By which of the following processes, pure nitrogen gas is prepared?
A)
\[(N{{H}_{4}})C{{r}_{2}}{{O}_{7}}\xrightarrow{\Delta }\]
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B)
\[N{{H}_{4}}Cl+NaN{{O}_{2}}\xrightarrow{\Delta }\]
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C)
\[N{{H}_{3}}+NaN{{O}_{2}}\xrightarrow{\Delta }\]
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D)
\[{{N}_{2}}O+Cu\xrightarrow{\Delta }\]
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question_answer 55) In the following reaction, \[{{C}_{2}}{{H}_{5}}OH+C{{H}_{3}}COOH\xrightarrow[-{{H}_{2}}O]{Conc.{{H}_{2}}S{{O}_{4}}}\] \[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\] \[{{C}_{2}}{{H}_{5}}OH\]acts as
A)
electrophile
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B)
nucleophile
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C)
dehydrating agent
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D)
All of the above
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question_answer 56) Which of the following orbital diagram violates Faults exclusion principle?
A)
done
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B)
done
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C)
done
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D)
done
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question_answer 57) The geometry of sulphate ion is
A)
square planar
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B)
tetrahedral
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C)
square pyramidal
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D)
octahedral
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question_answer 58) The difference between heat capacity at constant pressure and heat capacity at constant volume for the combustion of carbon monoxide at \[27{{\,}^{o}}C\] will be
A)
\[~-\text{ }124.71\text{ kJ}\]
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B)
\[-\text{ }1.247\text{ J}\]
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C)
\[~-\text{ }1.247\text{ kJ}\]
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D)
\[-\text{ }124.71\text{ J}\]
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question_answer 59) IUPAC name of the given compound is \[{{H}_{3}}C-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,=\overset{H}{\mathop{\overset{|}{\mathop{C}}\,}}\,-COOH\]
A)
2-methylbut-2-enoic acid
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B)
3-methylbut-2-enoic acid
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C)
3-methylbut-3-enoic acid
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D)
2-methylbut-3-enoic acid
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question_answer 60) Which of the following is an aromatic compound?
A)
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B)
done
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C)
done
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D)
done
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question_answer 61) Thermodynamically, most stable form of phosphorus is
A)
red
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B)
black
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C)
white
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D)
yellow
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question_answer 62) The substance with the highest calorific value is
A)
milk
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B)
rice
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C)
ghee
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D)
egg
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question_answer 63) Gamma rays are
A)
high energy electrons
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B)
low energy electrons
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C)
high energy electro-magnetic waves
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D)
high energy positrons
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question_answer 64) What volume of \[C{{O}_{2}}\] will be liberated at NTP if 12 g of carbon is burnt in excess of oxygen?
A)
11.2L
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B)
22.4 L
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C)
2.24 L
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D)
1.12 L
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question_answer 65) Which of the following is man-made element?
A)
Ra
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B)
U
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C)
Np
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D)
C
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question_answer 66) Four different colloids have the following Gold number. Which one has its most effective action?
A)
10
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B)
30
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C)
20
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D)
40
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question_answer 67) The number of unpaired electrons in ferrous ion is
A)
3
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B)
2
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C)
4
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D)
5
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question_answer 68) Ascorbic acid is the chemical name of
A)
vitamin\[{{B}_{6}}\]
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B)
vitamin A
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C)
vitamin C
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D)
vitamin D
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question_answer 69) Which amine of the following will not answer carbylamine reaction?
A)
Ethyl amine
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B)
Methyl amine
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C)
Dimethyl amine
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D)
Phenyl amine
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question_answer 70) For a reaction, the dimensions of rate constant are same as that of rate, hence order of reaction is
A)
0
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B)
1
done
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C)
2
done
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D)
3
done
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question_answer 71) The concentration (in mol/L) of the solution having osmotic pressure 0.0821 atm at 300 K will be
A)
0.33
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B)
0.066
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C)
\[0.3\times {{10}^{-2}}\]
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D)
3
done
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question_answer 72) Given, \[P{{b}^{2+}}/Pb=-0.126V;\]\[Z{{n}^{2+}}/Zn=-0.763\,\,V\] Find the emf of the following cell \[Zn|Z{{n}^{2+}}(0.1\,M)||P{{b}^{2+}}(1M)Pb.\]
A)
\[-\text{ }0.637\]
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B)
+ 0.637
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C)
> 0.637
done
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D)
+ 0.889
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question_answer 73) Which is the most abundant metal in the earthy crust?
A)
Fe
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B)
Al
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C)
Ca
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D)
Na
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question_answer 74) A hydrocarbon has carbon and hydrogen. Its molecular weight is 28. Its possible formula would be
A)
\[{{\text{C}}_{\text{3}}}{{\text{H}}_{\text{6}}}\]
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B)
\[{{C}_{2}}{{H}_{4}}\]
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C)
\[C{{H}_{4}}\]
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D)
\[{{C}_{4}}{{H}_{8}}\]
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question_answer 75) Which is an example of thermosetting polymer?
A)
Polythene
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B)
PVC
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C)
Neoprene
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D)
Bakelite
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question_answer 76) The first Noble Prize in chemistry was given to
A)
J.H. van' t Hoff
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B)
Cannizaro
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C)
Mendeleef
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D)
Moseley
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question_answer 77) Strongest reducing agent is
A)
K
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B)
Mg
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C)
Al
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D)
Ba
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question_answer 78) The base found only in the nucleotldes of RNA, is
A)
adenine
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B)
uracil
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C)
guanine
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D)
cytosine
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question_answer 79) Which of the following compounds does not give a precipitate with excess of NaOH?
A)
\[ZnS{{O}_{4}}\]
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B)
\[FeS{{O}_{4}}\]
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C)
\[AgN{{O}_{3}}\]
done
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D)
\[HgC{{l}_{2}}\]
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question_answer 80) Among the following, the correct statement is
A)
aniline is a weaker base than ammonia
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B)
in water, solubility of\[C{{H}_{3}}OH>{{C}_{2}}{{H}_{5}}OH>{{C}_{6}}{{H}_{5}}OH\]
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C)
b. p. of alkylhalide is greater than its corresponding alkane
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D)
All of the given statements are correct
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question_answer 81) Three products are obtained by the ozonolysis of penta-1, 3-diene. Out of these if two products are formaldehyde and acetaldehyde, the name of the third one is
A)
formaldehyde
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B)
ethanol
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C)
glyoxal
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D)
propanaldehyde
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question_answer 82) \[C{{H}_{2}}=CH-C{{H}_{2}}-CH=C{{H}_{2}}\] represents a/an
A)
conjugated system
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B)
cumulative system
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C)
isolated system
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D)
All of the above
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question_answer 83) In the presence of a catalyst, activation energy of a reaction is lowered by 2 kcal at \[27{{\,}^{o}}C.\] Hence, rate will be
A)
20 times
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B)
28 times
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C)
14 times
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D)
remain the same
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question_answer 84) The number of metamers of the compound with molecular formula \[{{C}_{5}}{{H}_{10}}O\]is
A)
1
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B)
3
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C)
8
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D)
6
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question_answer 85) The compound, with which ethanal does not react, is
A)
\[HCl\]
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B)
\[C{{l}_{2}}\]
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C)
\[PC{{l}_{5}}\]
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D)
\[aq\text{ }NaHS{{O}_{3}}\]
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question_answer 86) The incorrect order with respect to the acidic strength is
A)
formic acid > acetic acid > propionic acid
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B)
cyclohexanol < phenol < benzoic acid
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C)
benzamide < aniline < cyclohexylamine
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D)
\[FC{{H}_{2}}COOH>ClC{{H}_{2}}COOH>BrC{{H}_{2}}COOH\]
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question_answer 87)
Here, the compound X can be
A)
acetic acid
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B)
formaldehyde
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C)
formic acid
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D)
propionic acid
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question_answer 88) \[\text{HCl}\]molecule contains
A)
ionic bond
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B)
covalent bond
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C)
hydrogen bond
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D)
coordinate bond
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question_answer 89) Transition metals show paramagnetic behaviour. This is because of their
A)
high lattice energy
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B)
variable oxidation state
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C)
characteristic configuration
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D)
unpaired electrons
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question_answer 90) Which reaction is not affected by change in pressure?
A)
\[{{H}_{2}}+{{I}_{2}}\rightleftharpoons 2HI\]
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B)
\[2C+{{O}_{2}}\rightleftharpoons 2CO\]
done
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C)
\[{{N}_{2}}+3{{H}_{2}}\rightleftharpoons 2N{{H}_{3}}\]
done
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D)
\[PC{{l}_{5}}\rightleftharpoons PC{{l}_{3}}+C{{l}_{2}}\]
done
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question_answer 91) If the solubility of calcium fluoride in pure water is \[x\]mol/L, its solubility product is
A)
\[\sqrt{2}x\]
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B)
\[2{{x}^{2}}\]
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C)
\[4{{x}^{3}}\]
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D)
\[{{x}^{2}}\]
done
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question_answer 92) The molarity of a solution containing 5.0 g of \[\text{NaOH}\] in 250 mL solution is
A)
0.1
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B)
0.5
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C)
1.0
done
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D)
2.0
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question_answer 93)
The following reaction is called Friedel-Craft's reaction. In this reaction ?X? is
A)
\[R-\underset{O}{\mathop{\underset{|\,|}{\mathop{C}}\,}}\,-Cl\]
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B)
\[R-\underset{O}{\mathop{\underset{|\,|}{\mathop{C}}\,}}\,-R\]
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C)
\[R-\underset{O}{\mathop{\underset{|\,|}{\mathop{C}}\,}}\,-H\]
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D)
\[R-O-R\]
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question_answer 94) Picric acid is
A)
2, 4, 6-tribromophenol
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B)
2, 4, 6-trinitrotoluene
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C)
2, 4, 6-trinitrophenol
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D)
None of the above
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View Answer play_arrow
question_answer 95) Gravity separation process is used for the concentration of
A)
calamine
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B)
haematite
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C)
chalcopyrite
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D)
bauxite
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question_answer 96) Ammonium ion is
A)
a conjugate acid.
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B)
a conjugate base
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C)
neither an acid nor a base
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D)
both an acid and a base
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question_answer 97) The equivalent weight of \[\text{MnS}{{\text{O}}_{\text{4}}}\]is half of its molecular weight when it is converted to
A)
\[\text{M}{{\text{n}}_{\text{2}}}{{\text{O}}_{\text{3}}}\]
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B)
\[\text{Mn}{{\text{O}}_{\text{2}}}\]
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C)
\[\text{MnO}_{4}^{-}\]
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D)
\[MnO_{4}^{2-}\]
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question_answer 98) The reaction by which benzaldehyde is converted in benzyl alcohol, is
A)
Fittig reaction
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B)
Cannizaro reaction
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C)
Wurtz reaction
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D)
aldol condensation
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question_answer 99) By the ideal gas law, the pressure of 0.60 mole \[\text{N}{{\text{H}}_{\text{3}}}\]gas in a 3.00 L vessel at \[25{{\,}^{o}}C\] is
A)
48.9 atm
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B)
4.89 atm
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C)
0.489 arm
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D)
489 atm
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question_answer 100) Brown ring in the test of nitrate ion is btained due to the formation of
A)
\[[Fe{{({{H}_{2}}O)}_{5}}NO]S{{O}_{4}}\]
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B)
\[[Fe{{(S{{O}_{4}})}_{2}}NO]{{H}_{2}}O\]
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C)
\[F{{e}_{2}}{{(S{{O}_{4}})}_{3}}.NO\]
done
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D)
None of the above
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question_answer 101) Energy flow in an ecosystem is
A)
unidirectional
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B)
bidirectional
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C)
multi-directional
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D)
All of the above
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question_answer 102) Who proposed a five-kingdom classification and named kingdoms as Monera, Protista, Fungi, Plantae and Animalia?
A)
Herbert Copeland
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B)
R H Whittaker
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C)
Carl Woese
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D)
Carolus Linnaeus
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question_answer 103) Which of the following organisms completely lack cell wall, they are the smallest living cells known and can survive without oxygen?
A)
Mycoplasma
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B)
Euglenoids
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C)
Slime moulds
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D)
All of these
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question_answer 104) What is the correct order of the stages of cellular respiration?
A)
Krebs cycleelectron - transport - chain glycolysis
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B)
Electron - Krebs cycle - glycolysis transport chain
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C)
Glycolysis - Krebs cycle - electron transportchain
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D)
Glycolysis - electron - Krebs cycle transportchain
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question_answer 105) Who discovered an infectious agent that was to be a free RNA of low molecular weight, it also lacked protein coat. This agent caused potato spindle tuber disease?
A)
M W Beijerinck
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B)
T O Diener
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C)
J Ivanowsky
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D)
W M Stanley
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question_answer 106) Bioluminescence is well marked in
A)
flatworms
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B)
ctenophores
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C)
cnidaria
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D)
aschelminthes
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question_answer 107) Small disc-shaped structures at the surface of the centromeres that appear during metaphase are
A)
kinetochores
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B)
metaphase plate
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C)
spindlefibres
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D)
chromatid
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question_answer 108) In some organisms, karyokinesis is not followed by cytokinesis as a result of which, multinucleate condition arises leading to the formation of syncytium. The perfect example for this is
A)
appearance of a furrow in cell membrane
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B)
liquid endosperm in coconut
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C)
sexual reproduction
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D)
fertilization
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question_answer 109) When a molecule moves across a membrane independent of other molecules, the process is called
A)
uniport
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B)
symport
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C)
antiport
done
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D)
facilitated diffusion
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View Answer play_arrow
question_answer 110) Golden rice was created by transforming rice with two beta-carotene biosynthesis genes, namely,
A)
\[\text{Psy}\]and \[\text{Crt 1}\]genes
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B)
\[\text{LCY}-\text{e}\]
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C)
\[\text{CHY}-\text{1}\]
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D)
\[\text{CHY}-2\]
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question_answer 111) A scientist added a chemical (cyanide) to an animal cell to stop aerobic respiration. Which of the following is most likely to have been affected by this treatment?
A)
Active transport of substances across the plasma membrane
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B)
Passive transport of substances across the plasma membrane
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C)
Diffusion of substances across the plasma membrane
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D)
The thickness of the plasma membrane
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question_answer 112) Mobilization of stored food in germinating seed is triggered by
A)
ABA
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B)
GA
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C)
cytokinin
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D)
ethylene
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question_answer 113) In the cell mediated immuno response, T-lymphocytes divide and secrete
A)
antigens
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B)
plasmogens
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C)
collagens
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D)
cytokines
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question_answer 114) Which of the following elements is an activator for both ribulosebiphosphate carboxylase oxygenase and phosphoenol pyruvate carboxylase in photosynthetic carbon fixation?
A)
\[M{{g}^{2+}}\]
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B)
\[Z{{n}^{2+}}\]
done
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C)
\[C{{a}^{2+}}\]
done
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D)
\[S{{O}_{4}}^{2-}\]
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question_answer 115) The inward movement of ions into the cells is ......and the outward movement is......
A)
influx; efflux
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B)
efflux; influx
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C)
absorption; adsorption
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D)
adsorption; absorption
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question_answer 116) Which of the PGR6 induces pathenocarpy in tomatoes?
A)
Auxin
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B)
Gibberellin
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C)
Cytokinin
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D)
Ethylene
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question_answer 117) Complete the equation : \[\text{Nucleic acids}\xrightarrow[{}]{\text{Nucleases}}\text{Nucleotides }\xrightarrow[{}]{{}}......\]
A)
Monoglycerides
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B)
Diglycerides
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C)
Disaccharides
done
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D)
Nucleosides
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question_answer 118) Which of the following is an organic molecule needed by the body in small amounts?
A)
Protein
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B)
Zinc
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C)
Vitamin-C
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D)
Monosaccharide
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question_answer 119) Which of the following rule states that animals of colder areas have shorter tails as compared to animals of warmer areas?
A)
Allen's rule
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B)
Rensch's rule
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C)
Jordan's rule
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D)
Bergman's rule
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question_answer 120) Secretin and cholecystokinin are digestive hormones. They are secreted in
A)
oesophagus
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B)
ileum
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C)
duodenum
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D)
pyloric
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question_answer 121) G-6-P dehydrogenase deficiency is associated with haemolysis of
A)
lymphocytes
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B)
RBCs
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C)
platelets
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D)
leucocytes
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question_answer 122) Biodiversity Act of India was passed by the Parliament in the year
A)
1996
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B)
1992
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C)
2002
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D)
2000
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question_answer 123) Chlorophyll in chloroplasts is located in
A)
grana
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B)
pyrenoid
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C)
stroma
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D)
Both (a) and (c)
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question_answer 124) The post Bhopal gas disaster analysis showed that the accident started, when the leakage of a tank started containing
A)
methylisocyanide
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B)
methylisocyanate
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C)
ethylisocyanide
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D)
ethylisocyanate
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question_answer 125) Which of the following herbicides and defoliant were used by the US military in its herbicidal warfare programme during the Vietnam war ?
A)
Agent black
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B)
Agent orange
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C)
Super orange
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D)
Both (b) and (c)
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question_answer 126) Some individuals with blood group A may inherit the genes for blond hair, while other individuals with blood group A may inherit the gene for brown hair. This can be best explained by the principle of
A)
dominance
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B)
multiple alleles
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C)
independent assortment
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D)
incomplete dominance
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question_answer 127) Which one of the following is correctly matched?
A)
National Institute of Virology?Pune
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B)
National institute of Communicable Diseases?Lucknow
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C)
Central Drug Research Institute?Kasauli
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D)
National Institute of Nutrition?Mumbai
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question_answer 128) Which of the following abnormalities results from an unnatural presence of a Barr body that it would normally not have?
A)
Turner's syndrome
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B)
Down's syndrome
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C)
Klinefelter's syndrome
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D)
All of the above
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question_answer 129) If a single plant species is removed from a food web, then most likely
A)
an animal species will fill the unoccupied niche
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B)
other plants will produce enough food for herbivores
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C)
dependent herbivores will have to find new food sources
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D)
carnivores will be unaffected by the loss
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question_answer 130) A vaccine meant for protection against tuberculosis is
A)
BCG
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B)
DPT
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C)
TT
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D)
BGC
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question_answer 131) The patient of this disease exhibit memory loss (particularly for recent events), shortened attention span, disorientation and eventual language loss.
A)
Cancer
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B)
AIDS
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C)
Alzheimer's disease
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D)
Cystic fibrosis
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question_answer 132) This tumour normally confined to their original location and do not spread to other parts of the body.
A)
Malignant tumour
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B)
Metastasis
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C)
Benign tumour
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D)
Cancer
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question_answer 133) Certain bacteria living in the soil poor in oxygen, convert nitrates into nitrites and then to free nitrogen and such bacteria are termed as
A)
nitrogen fixing bacteria
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B)
denitrifying bacteria
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C)
ammonifying bacteria
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D)
saprophytic bacteria
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question_answer 134) Which of the following respiratory organs are present in spiders and scorpions?
A)
Book lungs
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B)
Gills
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C)
Gill books
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D)
Lungs
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question_answer 135) Who discovered that restriction enzymes have the capability of cutting DNA strands in a particular fashion, which left what has became known as ?sticky ends? on the strands ?
A)
Ramdeo Mishra
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B)
Stanley Cohen
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C)
Herbert Boyer
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D)
James D Watson
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question_answer 136) Formation of non functional methaemoglobin causes blue-baby syndrome. This is due to
A)
excess of arsenic concentration in drinking water
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B)
excess of nitrates in drinking water
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C)
deficiency of iron in food
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D)
increased methane content in the atmosphere
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question_answer 137) In maize, hybrid vigour is exploited by
A)
bombarding the seeds with DNA
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B)
crossing of two inbred parental lines
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C)
harvesting seeds from the most productive plants
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D)
inducing mutations
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question_answer 138) Hargobind Khorana also contributed to genetic engineering by synthesizing
A)
\[{{\text{p}}^{\text{BR322}}}\]
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B)
viroid
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C)
\[{{\text{p}}^{\text{BR42}}}\]
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D)
artificial gene
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question_answer 139) Which of the following is exotic species?
A)
Parthenium
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B)
Lantana
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C)
Eichhornia
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D)
All of these
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question_answer 140) The total number of biodiversity hot spots in the world are
A)
24
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B)
12
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C)
34
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D)
52
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question_answer 141) A bond formed between carboxyl group of one amino acid and amino group of adjacent amino acid is called
A)
peptide bond
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B)
hydrogen bond
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C)
covalent bond
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D)
All of these
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question_answer 142) When the body is rapidly oxidising fats, excess ketone bodies accumulate resulting in
A)
pyruvic acid
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B)
lactic acid
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C)
ketoacidosis
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D)
ATP
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question_answer 143) EERI is situated in
A)
Delhi
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B)
Mumbai
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C)
Nagpur
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D)
Bangaluru
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question_answer 144) A historic convention on biological diversity held in Rio de Janeiro in 1992 is known as
A)
The earth summit
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B)
Montreal protocol
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C)
Janeva convention
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D)
Janeiro convention
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question_answer 145) The flowers of Oxalis open during the day and close at night, such type of movement is
A)
photonasty
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B)
nyctinasty
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C)
photonastic
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D)
seismonastic
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question_answer 146) Silent valley is tropical evergreen forest located in
A)
Kerala
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B)
Karnataka
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C)
Maharashtra
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D)
Orissa
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question_answer 147) The results of Miller?s experiments were discussed in the book The Planets? written by
A)
Sayere
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B)
Harold Urey
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C)
Huxley
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D)
Stanley
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question_answer 148) Vitamin-C was the first vitamin to be produced by a fermentation process using
A)
Penicillium
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B)
E. coli
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C)
Yersinia pestis
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D)
Acetobacter
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question_answer 149) The functional unit of DNA molecule that codes for a particular gene product is
A)
cistron
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B)
exon
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C)
intron
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D)
gene
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question_answer 150) A gene that masks another gene?s expression is called
A)
dominant
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B)
recessive
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C)
epistatic
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D)
assorted
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question_answer 151) The largest public sector bank in India is
A)
State Bank of India
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B)
Allahabad Bank
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C)
Punjab National Bank
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D)
Indian Overseas bank
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question_answer 152) National Development Council was set up in
A)
1950
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B)
1951
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C)
1952
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D)
1953
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question_answer 153) One rupee currency note bears the signature of
A)
Prime Minister of India
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B)
President of India
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C)
Finance Minister of India
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D)
Finance Secretary of India
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question_answer 154) The first estimate of national income in India was made by
A)
Mahalonobis
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B)
V.K.R.V. Rao
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C)
Dada BhaiNaoroji
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D)
None of the above
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question_answer 155) Who holds the power of Judicial review in India?
A)
The Parliament
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B)
The Minister of low
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C)
The Supreme Court and the High Court
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D)
Only Supreme Court
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question_answer 156) Who was the first Chairman of the Planning Commission?
A)
Gulzari Lai Nanda
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B)
J.L. Nehru
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C)
C.D. Deshmukh
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D)
K.C. Niyogy
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question_answer 157) Who presided as the temporary President of Constituent Assembly ?
A)
SacchidanandSinha
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B)
Dr. Rajendra Prasad
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C)
Dr. B.R. Ambedkar
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D)
None of the above
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question_answer 158) What is the special constitutional position of Jammu & Kashmir?
A)
Indian laws are not applicable.
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B)
It has its own constitution.
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C)
It is not one of the integral parts of Indian union.
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D)
It is above the constitution
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question_answer 159) The 44th Amendment of the Indian Constitution withdrew the Fundamental Right
A)
to freedom of religion
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B)
to constitutional remedies
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C)
to property
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D)
against exploitation
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question_answer 160) In modern periodic table, 6th period contains
A)
32 elements
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B)
18 elements
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C)
30 elements
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D)
8 elements
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question_answer 161) What happens when steam is passed over red hot carbon?
A)
\[\text{C}{{\text{O}}_{\text{2}}}+{{\text{H}}_{\text{2}}}\] are formed
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B)
\[{{\text{H}}_{\text{2}}}+0\text{2}+\] steam are formed
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C)
\[\text{CO}+{{\text{H}}_{\text{2}}}\] are formed
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D)
None of the above
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question_answer 162) Soda water contains
A)
nitrous acid
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B)
acetic acid
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C)
carbon dioxide
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D)
sulphuric acid
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question_answer 163) Lead pencil contains
A)
leadsulphate
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B)
lead
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C)
ferroussulphate
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D)
graphite
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question_answer 164) Which of the following has density greater than water?
A)
Li
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B)
Na
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C)
K
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D)
Cs
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question_answer 165) Glucagon is produced by
A)
peptic cells
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B)
oxyntic cells
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C)
alpha cells
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D)
beta cells
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question_answer 166) Inflorescence is
A)
group of flowers
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B)
occurrence of flowers
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C)
arrangement of flowers
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D)
arrangement of flowers on the floral axis
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question_answer 167) In which one of the following mammals do the ducts of the excretory system and genital tract have a common opening?
A)
Porcupine
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B)
Pangolin
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C)
Hedgehog
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D)
Echidna
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question_answer 168) Stem cutting are commonly used for the propagation of
A)
banana
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B)
rose
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C)
mango
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D)
cotton
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question_answer 169) Eating of raw fish can cause deficiency of vitamin
A)
D
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B)
\[{{\text{B}}_{\text{1}}}\]
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C)
\[{{\text{B}}_{4}}\]
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D)
\[{{\text{B}}_{12}}\]
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question_answer 170) Gandhiji was associated with the Peasant Movement of
A)
Bardoli
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B)
Champaran
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C)
Kheda
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D)
Both and
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question_answer 171) The Supreme Court in British India was established under
A)
The Charter Act of 1813
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B)
The Charter Act of 1833
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C)
Regulating Act of 1773
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D)
Pitt?s India Act of 1784
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question_answer 172) The total number of Purans are
A)
10
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B)
12
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C)
16
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D)
18
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question_answer 173) The biggest building at Mohenjodaro was the
A)
great granary
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B)
rectangular building
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C)
great bath
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D)
assembly hall
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question_answer 174) The earliest example of a land grant is provided by an inscription of
A)
the Mauryas
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B)
the Satvahans
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C)
the Guptas
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D)
the Chalukyas
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question_answer 175) Rabindranath Tagore returned the title of Knighthood to the British Government to protest against the
A)
Rowlatt Act of 1919
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B)
introduction of Diarchy in the provinces
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C)
partition of Bengal
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D)
massacre in JallianwallaBagh
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question_answer 176) Who was the first person to land on the moon?
A)
Neil Armstrong and Edwin Aldrin
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B)
Neelam Sanjeev Reddy and Einstein
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C)
Stephen Hawkins and Kingsley
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D)
None of the above
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question_answer 177) The largest of Indian peninsular river is
A)
Ganga
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B)
Krishna
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C)
Godavari
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D)
None of these
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question_answer 178) The first person to conduct heart trans planation in India is
A)
Dr. P.K.K. Ayyangar
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B)
b) Dr. R. Valiathan
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C)
Dr. Vanugopal
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D)
Dr. R. Keshavan Nair
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question_answer 179) Which Indian became the President of International Court of Justice?
A)
Justice H.R. Khanna
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B)
Justice Ajit Ray
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C)
Dr. Nagendra Singh
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D)
Justice P.N. Bhagwati
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question_answer 180) ?Golan Heights? has become a controversial issue between which of the following pairs of nations?
A)
Iraq-Iran
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B)
Israel-Libya
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C)
Israel-Syria
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D)
Kuwait-Iraq
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question_answer 181) If? nitcoscotingo? means ?softer than flower? ; ?tingorhomst? means ?sweet flower fragrance? and ?mstscotmp? means ?sweet than smile?, what wuld ?fragrance? stand for ?
A)
rho
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B)
tmp
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C)
sco
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D)
mst
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question_answer 182) If \[x=\sqrt[3]{2\frac{93}{125}},\] then the value of x is
A)
\[2\frac{1}{5}\]
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B)
\[1\frac{2}{5}\]
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C)
\[3\frac{1}{5}\]
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D)
\[4\frac{1}{5}\]
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question_answer 183) The subduplicate ratio of \[16{{x}^{4}}:625{{y}^{6}}\] is
A)
\[\text{4}{{\text{x}}^{\text{2}}}:\text{25}{{\text{y}}^{\text{3}}}\]
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B)
\[~\text{4}{{\text{x}}^{\text{2}}}\text{:25}{{\text{y}}^{\text{2}}}\]
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C)
\[\text{4x}:\text{25y}\]
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D)
\[\text{8}{{\text{x}}^{\text{2}}}:\text{125}{{\text{y}}^{\text{3}}}\]
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question_answer 184) How many meters of cloth 50 m wide will be required to make a conical tent, the radius of whose base is 7 m and whose height is 24 m ?
A)
9 m
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B)
11m
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C)
12 m
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D)
13m
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question_answer 185) In a ratio which is equal to 7 : 8, if the antecedent is 35, the consequent is :
A)
30
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B)
32
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C)
36
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D)
40
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question_answer 186) Six persons are playing a game sitting in a circle facing the centre, Vijay was to the left of Sudhir. Amar was between Rakesh and Sarv. Neerav was second to the left of Amar. Which of the following is the position of Amar from Neerav?
A)
Second from right
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B)
Second to the left
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C)
Third from the left
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D)
Third from right
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question_answer 187) If ?nsoptrklichn? stands for ?Sapna gets marriage gift?, ?ptrInm wop chn? stands for ?wife gives marriage gift?, ?tti wop nhi? stands for ?he gives nothing?, what would means ?gives? ?
A)
wop
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B)
ptr
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C)
nhi
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D)
chn
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question_answer 188) Who is the tallest?
A)
Sunita
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B)
Bina
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C)
Gauri
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D)
Data inadequate
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question_answer 189) Who is the shortest?
A)
Radha
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B)
Renu
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C)
Seema
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D)
Data inadequate
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question_answer 190) What is the position of Radha from the shorter end?
A)
Fourth
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B)
Second
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C)
Third
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D)
Data inadequate
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question_answer 191) The most important use of fire for primitive man was
A)
to provide warmth
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B)
to provide light
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C)
to cook food
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D)
Both and
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question_answer 192) Primitive man used the fire-brand to
A)
keep away the wild animals
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B)
lessen the labour
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C)
provide light
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D)
prevent accidents
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question_answer 193) In the passage primary means
A)
primitive
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B)
elemental
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C)
fundamental
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D)
essential
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question_answer 194) Lamps, too, probably developed by accident. This statement shows that lamps developed through
A)
an accident
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B)
chance
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C)
planning
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D)
fate
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question_answer 195) Which of the following may be best title for the passage?
A)
Discovery of fire
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B)
Uses of fire
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C)
Primitive man and fire
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D)
Lamps
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question_answer 196) Select the appropriate world which is nearest in meaning to the word given in capitals. CONFIDENTIAL
A)
Secret
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B)
Private
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C)
Trusted
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D)
Hidden
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question_answer 197) Select the appropriate world which is nearest in meaning to the word given in capitals. MANY
A)
Endless
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B)
Several
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C)
Unlimited
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D)
Numberless
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question_answer 198) Select the appropriate world which is nearest in meaning to the word given in capitals. NIMBLE
A)
Lively
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B)
Clear
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C)
Quickening
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D)
Subtle
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question_answer 199) Select the appropriate world which is nearest in meaning to the word given in capitals. SANE
A)
Wild
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B)
Rational
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C)
Arrogant
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D)
Obscure
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question_answer 200) Select the appropriate world which is nearest in meaning to the word given in capitals. FATIGUE
A)
Sweating
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B)
Tension
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C)
Drowsiness
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D)
Weariness
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