question_answer 1) The radius of a soap bubble is R and surface tension is T, keeping the temperature constant, the extra energy needed to double the radius of the soap bubble by blowing, will be:
A)
\[32\pi {{R}^{2}}T\]
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B)
\[24\pi {{R}^{2}}T\]
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C)
\[16\pi {{R}^{2}}T\]
done
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D)
\[8\pi {{R}^{2}}T\]
done
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question_answer 2) An ideal gas at \[27{}^\circ C\] is compressed adiabatically to \[\frac{8}{27}\]of its original volume. If \[\gamma \]= 5/3, then the rise in temperature is :
A)
375 K
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B)
450 K
done
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C)
225 K
done
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D)
405 K
done
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question_answer 3) A uniform chain of length L and mass M is lying on a smooth table and one third of its length is hanging vertically downward over the edge of table, if g is acceleration due to gravity, then the work done required to pull the hanging part on to the table is :
A)
MgL
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B)
MgL/3
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C)
MgL
done
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D)
MgL/18
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question_answer 4) Two planets have the same average density but their radii are \[{{R}_{1}}\]and \[{{R}_{2}}.\] If acceleration due to gravity on these planets be \[{{g}_{1}}\] and \[{{g}_{2}},\] then :
A)
\[\frac{g1}{g2}=\frac{R_{1}^{3}}{R_{2}^{3}}\]
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B)
\[\frac{g1}{g2}=\frac{R_{1}^{2}}{R_{2}^{2}}\]
done
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C)
\[\frac{g1}{g2}=\frac{{{R}_{2}}}{{{R}_{1}}}\]
done
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D)
\[\frac{g1}{g2}=\frac{{{R}_{1}}}{{{R}_{2}}}\]
done
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question_answer 5) Two metal pieces having a potential difference of 800V are 0.02 m apart horizontally. A particle of mass\[1.96\times {{10}^{-15}}\,kg\]is suspended equilibrium between the plates. If e is the elementary charge, then charge on the particle is :
A)
8e
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B)
6e
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C)
3e
done
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D)
e
done
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question_answer 6) \[\frac{1}{2}\]mole of He is contained in a container at S.T.P. The heat energy needed to double the pressure of the gas, keeping the volume constant, (heat capacity of the gas is 3J/gmK) is :
A)
409.5 J
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B)
819 J
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C)
1638 J
done
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D)
3276 J
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question_answer 7) A sphere of 3 cm radius acts like a black body. If it is an equilibrium with its surroundings and absorb 30kW of energy radiated to it from the surroundings. Then the temperature of the sphere will be :
A)
816
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B)
916
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C)
1616
done
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D)
2615
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question_answer 8) The maximum velocity of an electron emitted by light of wavelength X incident on the surface of a metal of work function \[\theta \], is :
A)
\[{{\left[ \frac{2(h\lambda -\theta )}{m} \right]}^{{1}/{2}\;}}\]
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B)
\[{{\left[ \frac{2(hc-\lambda \phi )}{m\lambda } \right]}^{{1}/{2}\;}}\]
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C)
\[\left[ \frac{2(hc-\lambda \phi )}{m} \right]\]
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D)
\[{{\left[ \frac{2(hc-\lambda \phi )}{m\lambda } \right]}^{{1}/{2}\;}}\]
done
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question_answer 9) The average distance between the earth and moon is \[38.6\times {{10}^{7}}\]km. The minimum separation between the two points on the surface of the moon that can be resolved by a telescope whose objective lens has a diameter of 5 m with \[\lambda \] = 6000 \[\overset{0}{\mathop{A}}\,\] is :
A)
56.51 m
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B)
11.30m
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C)
28.25m
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D)
5.65 m
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question_answer 10) A transverse progressive wave on a stretched string has a velocity of 10 m/s and a frequency of 100 Hz. The phase difference between two particles of the string which are 2.5 cm apart will be :
A)
\[\frac{\pi }{2}\]
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B)
\[\frac{3\pi }{8}\]
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C)
\[\pi /4\]
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D)
\[\pi /8\]
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question_answer 11) Water waves are :
A)
transverse
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B)
longitudinal
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C)
both longitudinal and transverse
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D)
neither longitudinal nor transverse
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question_answer 12)
All bulbs in the figure are identical which bulb lights more brightly?
A)
1 and 2
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B)
3 and 4
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C)
1
done
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D)
2
done
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question_answer 13) A capacitor is a perfect insulator for :
A)
A.C
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B)
D.C
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C)
both A.C and D.C
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D)
none of these
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question_answer 14) Just as electricity is supplied at 220 volts for domestic use in India, it is supplied at110 volts in U.S.A. If the resistance of 60 W bulb for use in India is R , that of 60 W bulb for use in U.S.A., will be :
A)
2R
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B)
R
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C)
RJ2
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D)
R/4
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question_answer 15) A proton moving with a constant velocity passes through a region of space without any change in its velocity. If E and B represent the electric and magnetic fields respectively, then this region of space may have :
A)
E = 0, B = 0
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B)
\[E\ne 0,B1+0\]
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C)
\[E=0,B\ne 0\]
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D)
and both
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question_answer 16) The decimal number 53 is equal to the binary number:
A)
11 01 01
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B)
10 11 01
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C)
10 10 10
done
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D)
11 11 11
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question_answer 17) \[A6\mu F\]capacitor is charged from 10 volts to 20 volts. Increase in energy will be :
A)
\[9\times {{10}^{-6}}J\]
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B)
\[4.5\times {{10}^{-4}}J\]
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C)
\[9\times {{10}^{-4}}J\]
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D)
\[19\times {{10}^{-4}}J\]
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question_answer 18) An electric bulb of 100 W is connected to a supply of electricity of 200V. Resistance of the filament is :
A)
242 \[\Omega \]
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B)
22000 \[\Omega \]
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C)
100\[\Omega \]
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D)
484 \[\Omega \]
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question_answer 19) A body of mass 40 g is moving with constant velocity of 2 cm/sec on a horizontal frictionless table. The force on the table is :
A)
160 dyne
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B)
39200 dyne
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C)
80 dyne
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D)
zero
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question_answer 20) A cup of tea cools from \[80{}^\circ C\] to \[60{}^\circ C\] in one minute. The ambient temperature is \[30{}^\circ C\]. In cooling from \[60{}^\circ C\] to \[50{}^\circ C\] it will take :
A)
50 sec
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B)
90 sec
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C)
60 sec
done
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D)
48 sec
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question_answer 21) The magnifying power of simple microscope can be increased, if we use an eye piece of:
A)
smaller diameter
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B)
higher diameter
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C)
smaller focal length
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D)
higher focal length
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question_answer 22) The number of photoelectrons emitted from the surface of a metal increases on increasing of the incident photons:
A)
velocity
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B)
wavelength
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C)
frequency
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D)
number
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question_answer 23) When two ends of a rod wrapped with cotton are maintained at different temperature and after some time every point of the rod attains a constant temperature, then
A)
each point of rod is giving heat to its neighbour at the same rate which it is receiving heat
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B)
rod is bad conductor of heat
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C)
heat is being radiated from each point of rod
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D)
conduction of heat at different points of the rod stops because the temperature is not increasing
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question_answer 24)
In the circuit shown in the adjoining figure the current between B and D is zero, the unknown resistance is of:
A)
3\[\Omega \]
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B)
2\[\Omega \]
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C)
4\[\Omega \]
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D)
emf of a cell is required to final the value of X.
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question_answer 25) A conductor has \[14.4\times {{10}^{-19}}C\] positive charge. The conductor has :
A)
excess of 27 electrons
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B)
excess of 9 electrons
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C)
short of 27 electrons
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D)
short of 9 electrons
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question_answer 26) In the position of minimum deviation when a ray of yellow light passes through the prism, then its angle of incidence is:
A)
greater than the emergent angle
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B)
less than the emergent angle
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C)
equa1 to the emergent angle
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D)
sum of angle of incidence and emergent angle is 90°
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question_answer 27) The vertical extension in a light spring by a weight of 1 kg suspended from the wire is 9.8 cm. The period of oscillation is :
A)
200 \[\pi \]sec
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B)
2\[\pi \]/10 sec
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C)
2\[\pi \] sec
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D)
4\[\pi \] sec
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question_answer 28) A meter of resistance 5 ohm fitted with a shunt resistance of 1 ohm, is in a circuit in which the current is 0.09 A. The combined resistance of the meter and the shunt is :
A)
\[\frac{5}{6}\Omega \]
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B)
\[\frac{5}{6}\Omega \]
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C)
\[2\Omega \]
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D)
\[6\Omega \]
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question_answer 29) A source and an observer moves away from each other, with a velocity of 15 m/s with respect to ground. If observer finds the frequency of sound coming from source as 1950 Hz. Then actual frequency of source will be (velocity of sound = 340 m/s):
A)
1785 Hz
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B)
1968 Hz
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C)
2130 Hz
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D)
2148 Hz
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question_answer 30) If the coefficient of friction of a plane inclined at 45°, is 0.5, then acceleration of a body sliding freely on it is:
A)
\[\frac{9.8}{2\sqrt{2}}m/{{s}^{2}}\]
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B)
\[\frac{9.8}{\sqrt{2}}m/{{s}^{2}}\]
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C)
\[9.8m/{{s}^{2}}\]
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D)
\[4.9m/{{s}^{2}}\]
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question_answer 31) A body of mass 300 kg is moved up by an elevator from a mine of depth 20 m to a height of 20 m in 1 min. The power of the elevator is :
A)
19.6 kW
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B)
196 kW
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C)
0.196 kW
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D)
1.96 kW
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question_answer 32)
In the circuit given below, A and V are ideal ammeter and voltmeter respectively. Reading of the voltmeter will be:
A)
1 V
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B)
0.5 V
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C)
2 V
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D)
zero
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question_answer 33) A parallel plate capacitor with air as medium between the plates has a capacitance of 10\[\mu F\]. The area of capacitor is divided in two equal halves and filled with two media having dielectric constants \[{{k}_{1}}=2\] and \[{{k}_{2}}=4\]The capacitance of the system will now be :
A)
40\[\mu F\]
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B)
30\[\mu F\]
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C)
10\[\mu F\]
done
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D)
\[\frac{20}{3}\mu F\]
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question_answer 34)
What is the current in the circuit shown below? 0.10 A
A)
1A
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B)
zero A
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C)
\[{{10}^{-2}}A\]
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D)
done
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question_answer 35) The de-Broglie wavelength of a 1 kg object moving with speed of 1 m/s is :
A)
\[6\times {{10}^{-10}}m\]
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B)
\[6.6\times {{10}^{-10}}m\]
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C)
\[6\times {{10}^{-34}}m\]
done
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D)
\[6.6\times {{10}^{-34}}m\]
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question_answer 36) A ray of monochromatic light is incident on one refracting face of a prism of angle \[75{}^\circ \]. It passes through the prism and is incident on the other face at the critical angle. If the refractive index of the material of prism is \[\sqrt{2,}\], the angle of incidence on the first face of the prism is :
A)
\[0{}^\circ \]
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B)
\[60{}^\circ \]
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C)
\[45{}^\circ \]
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D)
\[30{}^\circ \]
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question_answer 37) As a result of radioactive decay, \[_{92}{{\mathsf{U}}^{238}}\] is converted into\[_{91}P{{a}^{234}}\]. The particles emitted during this decay are:
A)
\[1\alpha ,1\beta \]
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B)
\[2\beta {{,}_{1}}{{H}^{1}}\]
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C)
\[_{1}{{H}^{1}}\]
done
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D)
\[_{1}{{H}^{1}},2\alpha \]
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question_answer 38) The half-life of radioactive radon is 3.8days. The time at the end of which \[\frac{1}{20}\]th of the radon sample will remain un decayed is: \[\left( {{\log }_{10}}e=0.4343 \right)\]
A)
16.5 days
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B)
3.8 days
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C)
33 days
done
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D)
76 days
done
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question_answer 39) The charge on two particles A and B at rest is q on each particle. The direction of motion of a charged particles C placed at point on the straight line joining the two charged, depends on :
A)
the charge on C and also on its position
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B)
only on the position of charge C
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C)
only on the magnitude of charge on C
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D)
only on the magnitudes of the charges of A and B
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question_answer 40) The potential gradient at which the dielectric of a condenser just gets punctured is called:
A)
dielectric number
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B)
dielectric resistance
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C)
dielectric strength
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D)
dielectric constant
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question_answer 41) The power of a thin convex lens (\[_{a}{{n}_{g}}\] = 1.5) is + 5D. When it is placed in a liquid of refractive index\[_{a}nl,\], then it behave as a concave lens of focal length 100 cm. The refractive index of the liquid \[_{a}nl,\] will be:
A)
5/4
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B)
\[\sqrt{3}\]
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C)
4/3
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D)
5/3
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question_answer 42) A bus accelerates uniformally from rest and acquires a speed of 72 km/hr in 10 sec. The acceleration of the bus is :
A)
\[2\text{ }m/{{s}^{2}}\]
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B)
\[1\text{ }m/{{s}^{2}}\]
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C)
\[4\text{ }m/{{s}^{2}}\]
done
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D)
\[20\text{ }m/{{s}^{2}}\]
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question_answer 43) In a nuclear reactor 0.01 mg of a nuclear material is totally converted into energy in one sec. Then the power of reactor will be :
A)
900 MW
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B)
450 W
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C)
200 MW
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D)
500 W
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question_answer 44) A spherical conductor of radius r placed in air, is given a charge Q and potentialat the surface of a conductor is V, then the potential at a point inside the conductor and at a distance r/2 from its centre will be:
A)
8 V
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B)
4 V
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C)
2 V
done
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D)
1 V
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question_answer 45) The magnetic moment of a short magnet is \[8\text{ }A{{m}^{2}}.\] The magnetic induction at appoint 20 cm away from its mid-point on (i) a axial point (ii) equatorial point respectively, will be :
A)
\[2\times {{10}^{-4}}T\,and{{10}^{-4}}T\]
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B)
\[3\times {{10}^{-4}}T\,and2\times {{10}^{-4}}T\]
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C)
\[4\times {{10}^{-4}}T\,and3\times {{10}^{-4}}T\]
done
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D)
none of these
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question_answer 46) Two strings of the same material and of same length have their tension in the ratio 4 :1 and their radii in the ratio 2:1. Then the ratio of their fundamental frequencies will be:
A)
1
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B)
0.5
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C)
4
done
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D)
4
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question_answer 47) A voltmeter has a range is 0 - V with, a series resistance R and with a series resistance 2R, the range is 0-V. The relation between V and V will be :
A)
\[V<2V\]
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B)
\[V>>V\]
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C)
V > 2V
done
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D)
V = 2V
done
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question_answer 48) A galvanometer has a resistance G and current \[{{i}_{a}}\] flowing in galvanometer, produces full scale deflection. If \[{{S}_{i}}\] is the value of shunt which converts it into an ammeter of range 0 - i and is the value of shunt 0 - 2i. Then the ratio \[{{S}_{1}}/{{S}_{2}}\]will be:
A)
1
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B)
2
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C)
\[\frac{1}{2}\left( \frac{i-{{i}_{a}}}{2i-{{i}_{a}}} \right)\]
done
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D)
\[\left( \frac{2i-{{i}_{a}}}{i-{{i}_{a}}} \right)\]
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question_answer 49) A short magnetic needle is pivoted in a uniform magnetic field of strength 1 tesla, when another magnetic field of strength \[\sqrt{3}\]T is applied to the needle in a perpendicular directions. The needle deflects at an angle \[\theta \], when the value of \[\theta \] is :
A)
\[60{}^\circ \]
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B)
\[90{}^\circ \]
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C)
\[45{}^\circ \]
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D)
\[30{}^\circ \]
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question_answer 50)
A cell is connected between the points A and C of a circular conductor PQRS of centre O with angle \[\angle \]POR= 60°. If \[{{B}_{1}}\]and \[{{B}_{2}}\]are the magnitudes of magnetic fields at O due to the currents in PQR and PSR respectively, then the ratio of \[\frac{{{B}_{1}}}{{{B}_{2}}}\]will be
A)
5:1
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B)
2:1
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C)
10 : 1
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D)
1 : 2
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question_answer 51) The total number of unpaired electrons in \[C{{r}^{+3}}\] ion are:
A)
3
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B)
2
done
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C)
4
done
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D)
0
done
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question_answer 52) Which one of the following electronic configuration have highest second ionisation energy?
A)
\[1{{s}^{2,}}2{{s}^{2}}2{{p}^{4}}\]
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B)
\[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}\]
done
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C)
\[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{1}}\]
done
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D)
\[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{1}}\]
done
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question_answer 53) Mass of an a-particle is 4.0028 amu, its binding energy per nucleon will be (given, \[{{m}_{p}}=1.0073\] and \[{{m}_{n}}=1.0087\]):
A)
\[2.86MeV\]
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B)
\[6.79MeV\]
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C)
\[4.46MeV\]
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D)
\[8.24MeV\]
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question_answer 54) Bond order of \[{{N}_{2}}\] is:
A)
2
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B)
3
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C)
4
done
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D)
5
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question_answer 55) Which of the following isoelcctronic species \[C{{a}^{+2}},\,C{{l}^{-1}},{{K}^{+}}\] and \[{{S}^{-2}}\] has maximum ionic size?
A)
\[{{K}^{+}}\]
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B)
\[C{{a}^{+2}}\]
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C)
\[C{{l}^{-}}\]
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D)
\[{{S}^{-2}}\]
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question_answer 56) Oxidation number of S in \[SO_{4}^{-2}\] is:
A)
\[+4\]
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B)
\[+6\]
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C)
\[+5\]
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D)
\[+8\]
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question_answer 57) Which of the following is diamagnetic?
A)
\[{{S}^{-2}}\]
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B)
\[O_{2}^{-}\]
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C)
\[N_{2}^{-}\]
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D)
\[NO\]
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question_answer 58) Which of the following is not a Lewis acid?
A)
\[B{{F}_{3}}\]
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B)
\[Si{{F}_{4}}\]
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C)
\[C{{H}_{4}}\]
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D)
\[FeC{{l}_{3}}\]
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question_answer 59) The hybridisation and structure of \[Si{{(C{{H}_{3}})}_{4}}\] is:
A)
sp, linear
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B)
\[s{{p}^{2}}\] , trigonal planar
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C)
\[s{{p}^{3}}\] , tetrahedral
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D)
\[s{{p}^{3}}d\], octahedral
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question_answer 60) The number of a-particles and \[\beta \] particles emitted in the reaction \[_{92}{{U}^{238}}{{\xrightarrow{{}}}_{82}}P{{b}^{206}}\] are:
A)
\[6\alpha ,4\beta \]
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B)
\[8\alpha ,6\beta \]
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C)
\[4\alpha ,5\beta \]
done
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D)
\[6\alpha ,8\beta \]
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question_answer 61) Oxidation number of Fe in \[{{K}_{3}}[Fe{{(CN)}_{6}}]\] is:
A)
\[+1\]
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B)
\[+2\]
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C)
\[+3\]
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D)
\[+\]
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question_answer 62) Which of the following has highest magnetic moment?
A)
\[C{{r}^{+3}}\]
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B)
\[{{V}^{+3}}\]
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C)
\[C{{o}^{+3}}\]
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D)
\[F{{e}^{+3}}\]
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question_answer 63) Which one of die following ores is a chloride?
A)
Zincite
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B)
Horn silver
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C)
Bauxite
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D)
Feldspar
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question_answer 64) The product formed in the reaction \[BC{{l}_{3}}+{{H}_{2}}O\xrightarrow{{}}\] products, is :
A)
\[{{B}_{2}}{{H}_{6}}+HCl\]
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B)
\[{{B}_{2}}{{O}_{3}}+HOCl\]
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C)
\[{{H}_{3}}B{{O}_{3}}+HCl\]
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D)
\[B{{H}_{3}}+HCl\]
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question_answer 65) Which one of the following is the strongest acid?
A)
\[C{{H}_{4}}\]
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B)
\[N{{H}_{3}}\]
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C)
\[HF\]
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D)
\[{{H}_{2}}O\]
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question_answer 66) Which of the following indicator is used in the titration of oxalic acid against sodium hydroxide solution?
A)
Fluorescein
done
clear
B)
Methyl red
done
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C)
Methyl orange
done
clear
D)
Phenolphthalien
done
clear
View Answer play_arrow
question_answer 67) Glaubers salt is:
A)
\[N{{a}_{2}}S{{O}_{4}}\]
done
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B)
\[N{{a}_{2}}S{{O}_{3}}.2{{H}_{2}}O\]
done
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C)
\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}.5{{H}_{2}}O\]
done
clear
D)
\[N{{a}_{2}}S{{O}_{4}}.10{{H}_{2}}O\]
done
clear
View Answer play_arrow
question_answer 68) When sodium is heated in a current of \[C{{O}_{2}}\] at\[{{260}^{o}}C\], the product obtained is:
A)
sodium for mate
done
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B)
sodium oxalate
done
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C)
sodium corbonate
done
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D)
sodium acetate
done
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question_answer 69) The momentum for the radiation of wavelength 0.33 nm is :
A)
\[3.56\times {{10}^{-16}}\]
done
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B)
\[4.32\times {{10}^{22}}\]
done
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C)
\[2.01\times {{10}^{-24}}\]
done
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D)
\[3.12\times {{10}^{-28}}\]
done
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View Answer play_arrow
question_answer 70) When \[KI\] is added in the solution of \[HgC{{l}_{2}}\], the colour of the resultant solution is:
A)
blue
done
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B)
red
done
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C)
orange
done
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D)
scarlet
done
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View Answer play_arrow
question_answer 71) Silicon and copper are cooled to a temperature of 300K, then resistivity:
A)
for Cu increases and for Si decreases
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B)
for Si increases and for Cu decreases
done
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C)
decreases for both Si and Cu
done
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D)
increases for both Si and Cu
done
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View Answer play_arrow
question_answer 72) Total number of a and k bonds in the structure of \[{{P}_{3}}{{O}_{10}}\] are:
A)
\[12\sigma ,6\pi \]
done
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B)
\[6\sigma ,10\pi \]
done
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C)
\[18\sigma ,6\pi \]
done
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D)
\[16\sigma ,4\pi \]
done
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View Answer play_arrow
question_answer 73) Which one of the following exhibits geometrical isomerism?
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 74) Which of the following ions is most stable?
A)
\[\overset{\oplus }{\mathop{C{{H}_{3}}CHC{{H}_{2}}C{{H}_{3}}}}\,\]
done
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B)
\[\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{{{H}_{3}}C-C-\overset{\oplus }{\mathop{C{{H}_{2}}}}\,}}\,}}\,}}\,}}\,\]
done
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C)
\[\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{{{H}_{3}}C-C\oplus }}\,}}\,}}\,}}\,\]
done
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D)
\[{{H}_{3}}C-C{{H}_{3}}-\overset{\oplus }{\mathop{C{{H}_{2}}}}\,\]
done
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View Answer play_arrow
question_answer 75) 1-phenyl ethanol can be prepared by the reaction of \[{{C}_{6}}{{H}_{5}}CHO\] with :
A)
\[C{{H}_{3}}I+Mg\]
done
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B)
\[{{C}_{2}}{{H}_{5}}Br+{{H}_{2}}O\]
done
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C)
\[C{{H}_{3}}C{{H}_{2}}Br+Alc.KOH\]
done
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D)
\[C{{H}_{3}}Br=A{{l}_{4}}{{C}_{3}}\]
done
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View Answer play_arrow
question_answer 76) Total number of isomers possible for the compound \[{{C}_{8}}{{H}_{10}}\] are:
A)
2
done
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B)
3
done
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C)
4
done
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D)
6
done
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View Answer play_arrow
question_answer 77) Acetylene on treatment with \[{{H}_{2}}S{{O}_{4}}\] and \[HgS{{O}_{4}}\] produces:
A)
aldehyde
done
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B)
ketone
done
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C)
alcohol
done
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D)
acid
done
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View Answer play_arrow
question_answer 78) The strongest of the four acids listed below is:
A)
\[C{{l}_{3}}C-COOH\]
done
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B)
\[{{F}_{3}}C-COOH\]
done
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C)
\[B{{r}_{3}}C-COOH\]
done
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D)
\[C{{H}_{3}}COOH\]
done
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View Answer play_arrow
question_answer 79) Glucose and cane sugar can be distinguished by:
A)
Molisch test
done
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B)
Fehlings solution
done
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C)
Baeyers reagent
done
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D)
Ammonical \[AgN{{O}_{3}}\]
done
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View Answer play_arrow
question_answer 80) Propone and propyne can be distinguished by:
A)
\[B{{r}_{2}}\] in \[CC{{l}_{4}}\]
done
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B)
dil \[KMn{{O}_{4}}\]
done
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C)
Ammonical \[AgN{{O}_{3}}\]
done
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D)
cone. \[{{H}_{2}}S{{O}_{4}}\]
done
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View Answer play_arrow
question_answer 81)
Identify C.
A)
p-bromo aniline
done
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B)
p-bromo fluoro benzene
done
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C)
2, 4, 6 tribromo fluoro benzene
done
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D)
1, 3, 5 tribromo benzene
done
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question_answer 82) Acetaldehyde differ from benzaldehyde and formaldehyde in the reaction with:
A)
\[HCN\]
done
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B)
Benedicts solution
done
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C)
\[NaOH\]
done
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D)
Semicarbazide
done
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View Answer play_arrow
question_answer 83) The percentage of ethyl alcohol in rectified sprit is:
A)
\[85.5\]
done
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B)
\[75.0\]
done
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C)
\[95.6\]
done
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D)
\[100\]
done
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View Answer play_arrow
question_answer 84) Antibodies are:
A)
enzymes
done
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B)
protein
done
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C)
carbohydrates
done
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D)
hormones
done
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View Answer play_arrow
question_answer 85) Salicylic acid on heating with acetic anhydride in presence of cone. \[{{H}_{2}}S{{O}_{3}}\] produces:
A)
resin
done
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B)
drug
done
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C)
dye
done
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D)
explosive
done
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question_answer 86) 5 litres of a gas weighs 14.4 g at NTP. The molecular weight of gas is :
A)
\[64.51\]
done
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B)
\[56.42\]
done
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C)
\[52.42\]
done
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D)
\[61.40\]
done
clear
View Answer play_arrow
question_answer 87) Weight of \[KMn{{O}_{4}}\] required to prepare 250 ml of its \[\frac{N}{10}\]. solution if equivalent weight of \[KMn{{O}_{4}}\]is 31.6, will be:
A)
\[0.64g\]
done
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B)
\[1.24g\]
done
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C)
\[1.78g\]
done
clear
D)
\[0.79g\]
done
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View Answer play_arrow
question_answer 88) If 300 ml. of a gas at \[{{27}^{o}}C\] is cooled to \[-{{3}^{o}}C\] at constant pressure. The final volume of the gas is:
A)
270 ml
done
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B)
630 ml
done
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C)
200 ml
done
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D)
430 ml
done
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View Answer play_arrow
question_answer 89) For equilibrium \[2HI{{H}_{2}}+{{I}_{2}}\]. When \[{{H}_{2}}\] is added at constant temperature, the:
A)
value of \[{{K}_{P}}\] increases
done
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B)
value of \[{{K}_{P}}\] decreases
done
clear
C)
degree of dissociation of \[HI\] increases
done
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D)
degree of dissociation of \[HI\] decreases
done
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View Answer play_arrow
question_answer 90) If the rate constant of a first order reaction is \[{{10}^{-3}}{{\min }^{-1}}.\]The half life period of the reaction is:
A)
46.83 minute
done
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B)
642.84 minute
done
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C)
69.3 minute
done
clear
D)
693 minute
done
clear
View Answer play_arrow
question_answer 91) If the equilibrium constant for the reaction \[{{N}_{2}}+3{{H}_{2}}2N{{H}_{3}}\], then \[{{K}_{C}}\] the equilibrium constant for the reaction \[N{{H}_{3}}\frac{1}{2}{{N}_{2}}+\frac{3}{2}{{H}_{2}}\] is:
A)
\[\frac{1}{K_{C}^{2}}\]
done
clear
B)
\[\sqrt{{{K}_{C}}}\]
done
clear
C)
\[\frac{1}{{{K}_{C}}}\]
done
clear
D)
\[\frac{\sqrt{1}}{{{K}_{C}}}\]
done
clear
View Answer play_arrow
question_answer 92) Which one of the following equation is correct?
A)
\[\Delta G=\Delta H-\Delta T\]
done
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B)
\[\Delta G=\Delta H-T\Delta S\]
done
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C)
\[\Delta G=\Delta H+T\Delta S\]
done
clear
D)
\[\Delta G=T\Delta S-\Delta H\]
done
clear
View Answer play_arrow
question_answer 93) Time required to deposit 100 g of \[Al\] from an electrolyte cell containing \[A{{l}_{2}}{{O}_{3}}\] by using a current of 125 amperes is:
A)
4820 sec
done
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B)
8240.24 sec
done
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C)
8577.78 sec
done
clear
D)
6420.44 sec
done
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View Answer play_arrow
question_answer 94) The osmotic pressure of a decinormal solution of cane sugar at \[{{0}^{o}}C\] will be : (given R = 0.082 lit atom/k mole)
A)
\[22.4atm\].
done
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B)
\[2.24atm\]
done
clear
C)
\[0.224atm\]
done
clear
D)
\[22400atm\]
done
clear
View Answer play_arrow
question_answer 95) Heat of combustion of C, S and \[C{{S}_{2}}\] are \[-393.3,-293.72\]and\[-1108.76\text{ }kJ/mole\]. The heat of formation of \[C{{S}_{2}}\] will be:
A)
\[+128.02\text{ }kJ\]
done
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B)
\[-128.02kJ\]
done
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C)
\[-212.24\text{ }kJ\]
done
clear
D)
\[+212.24\text{ }kJ\]
done
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View Answer play_arrow
question_answer 96) The Arrhenius equation representing the effect of temperature on the rate constant of a reaction is:
A)
\[K=In\,\frac{E}{RT}\]
done
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B)
\[K=A{{e}^{-E/RT}}\]
done
clear
C)
\[K=A{{e}^{E/RT}}\]
done
clear
D)
\[K={{e}^{-EA/RT}}\]
done
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View Answer play_arrow
question_answer 97) pH of \[{{10}^{-4}}M\,\,HCl\] solution is:
A)
2
done
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B)
6
done
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C)
4
done
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D)
10
done
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View Answer play_arrow
question_answer 98) For the reaction \[Fe{{O}_{(s)}}+C{{O}_{(g)}}F{{e}_{(s)}}+C{{O}_{2}}_{(g)},\,\,{{K}_{C}}=5.0.\] If the concentration of CO at equilibrium is \[2.5\times {{10}^{-2}}mol/litre\] at \[{{100}^{o}}C\]. Then the equilibrium concentration of \[C{{O}_{2}}\] will be:
A)
\[1.25\times {{10}^{-4}}m/L\]
done
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B)
\[12.5\times {{10}^{-2}}m/L\]
done
clear
C)
\[2.50\times {{10}^{-3}}m/L\]
done
clear
D)
\[2.50\times {{10}^{-4}}m/L\]
done
clear
View Answer play_arrow
question_answer 99) The volume of \[\frac{M}{10}NaOH\] required to neutralise \[20mL\] of \[\frac{M}{10}NaOH\],, solution is:
A)
\[40\text{ }mL\]
done
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B)
\[20\text{ }mL\]
done
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C)
\[80\text{ }mL\]
done
clear
D)
\[10\text{ }mL\]
done
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View Answer play_arrow
question_answer 100) The vapour pressure of benzene at a certain temperature is 640 mm of Hg. If 2.175 g of a non-volatile solid is added to 39.08 g of benzene, the vapour pressure of solution is 600 mm of Hg. The molecular weight of the solid substance will be:
A)
\[48.60\]
done
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B)
\[44.2\]
done
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C)
\[64.26\]
done
clear
D)
\[69.45\]
done
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View Answer play_arrow
question_answer 101) The 1992 Nobel prize for medicine was awarded to H. Fischer and Edwin J. Krebs for their :
A)
human genome project
done
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B)
drug designing involving inhibition of DNA synthesis of the pathogen
done
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C)
reversible protein phosphorylation as a biological regulation mechanism
done
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D)
isolation of the gene for a human disease
done
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question_answer 102) When yeast ferments glucose, the products obtained are?
A)
Ethanol and water
done
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B)
Water and \[C{{O}_{2}}\]
done
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C)
Ethanol and\[C{{O}_{2}}\]
done
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D)
Methanol and \[C{{O}_{2}}\]
done
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View Answer play_arrow
question_answer 103) Mycorrhiza exhibits the phenomenon of:
A)
antagonism
done
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B)
endemism
done
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C)
parasitism
done
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D)
symbiosis
done
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View Answer play_arrow
question_answer 104) Initiation codon in eukaryotes is :
A)
AUG
done
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B)
UAG
done
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C)
GAU
done
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D)
AGU
done
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View Answer play_arrow
question_answer 105) The first phase in the breakdown of glucose in animal cell is:
A)
glycolysis
done
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B)
ETS
done
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C)
fermentation
done
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D)
Krebs cycle
done
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View Answer play_arrow
question_answer 106) Haploid plants can be obtained by culturing:
A)
young leaves
done
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B)
endosperm
done
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C)
pollen grains
done
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D)
root tips
done
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View Answer play_arrow
question_answer 107) Hypanthodium is a specialized type of:
A)
thalamus
done
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B)
ovary
done
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C)
fruit
done
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D)
inflorescence
done
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View Answer play_arrow
question_answer 108) Colour blindness results from :
A)
absence of rods
done
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B)
absence of cones
done
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C)
absence of eyelids
done
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D)
inverted retina
done
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View Answer play_arrow
question_answer 109) The cells of bacterium Staphylococcus remain arranged in the form of:
A)
plate
done
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B)
cube
done
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C)
irregular
done
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D)
chain
done
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View Answer play_arrow
question_answer 110) Who credited with the introduction of binomial system of nomenclature of plants?
A)
Linnaeus
done
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B)
John Ray
done
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C)
Bentham and Hooker
done
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D)
Aristotle
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question_answer 111) In embryonic stage RBCs develop in ;
A)
liver and kidney
done
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B)
liver and spleen
done
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C)
spleen and kidney
done
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D)
liver and pancreas
done
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View Answer play_arrow
question_answer 112) Eutherian nammals are :
A)
oviparous
done
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B)
viviparous
done
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C)
ovoviviparous
done
clear
D)
both a and c
done
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View Answer play_arrow
question_answer 113) Guttation occurs through :
A)
stomata
done
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B)
hydathodes
done
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C)
root hairs
done
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D)
flower buds
done
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View Answer play_arrow
question_answer 114) Cells of liver which .act as phagocytes are?
A)
Deiter cells
done
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B)
Kupffer cells
done
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C)
Hensen cells
done
clear
D)
Aciner cells
done
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View Answer play_arrow
question_answer 115) Lac is produced by :
A)
faeces of lac insect
done
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B)
secretion from body
done
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C)
excretion from body
done
clear
D)
excess food oozing out of body
done
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View Answer play_arrow
question_answer 116) Which one of the following plant hormones is known as a stress hormone?
A)
Gibberellins
done
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B)
Kinetin
done
clear
C)
Auxin
done
clear
D)
Abscisic acid
done
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View Answer play_arrow
question_answer 117) Which one of the following statements is true for the enzymes ?
A)
All enzymes are protein
done
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B)
All proticns are enzymes
done
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C)
All enzymes are not protein
done
clear
D)
All unzymes are vitamins
done
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View Answer play_arrow
question_answer 118) Sexual reproduction in Spirogyra is morphologically characterized by:
A)
oogamy
done
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B)
anisogamy
done
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C)
isogamy
done
clear
D)
both b and c
done
clear
View Answer play_arrow
question_answer 119) 0.1 M solution of a solute has a water potential of:
A)
- 2.3 bars
done
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B)
0 bar
done
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C)
22.4 bars
done
clear
D)
+ 2.3 bars
done
clear
View Answer play_arrow
question_answer 120) Kala-azar is transmitted by :
A)
tse-tse fly
done
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B)
dragon fly
done
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C)
sand fly
done
clear
D)
fruit fly
done
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View Answer play_arrow
question_answer 121) Chromosome theory of sex determination was proposed by:
A)
Bridges
done
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B)
Balbiani
done
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C)
Gold Schmidt
done
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D)
Mendel
done
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View Answer play_arrow
question_answer 122) Biological magnification refers to:
A)
concentration of insecticide in animals
done
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B)
concentration of organ ophosphate in plants
done
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C)
photography in laboratory
done
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D)
increase in number of animals and plants in ecosystem
done
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View Answer play_arrow
question_answer 123) Peridem is made up of:
A)
phellem
done
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B)
phellogen
done
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C)
phelloderm
done
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D)
all of the above
done
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View Answer play_arrow
question_answer 124) A diseased man marries a normal woman and they get three daughters and five sons. All the daughters were diseased and sons were normal. The gene of this disease is :
A)
sex-linked dominant
done
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B)
Sex-linked recessive
done
clear
C)
Sex-limited characters
done
clear
D)
Autosomal dominant
done
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View Answer play_arrow
question_answer 125) Monadelphous condition of stamens is found in:
A)
Malvaceae
done
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B)
Cyperaceae
done
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C)
Cruciferae
done
clear
D)
Solanaceae
done
clear
View Answer play_arrow
question_answer 126) In which animal nerve cell is present but brain is absent:
A)
Sponge
done
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B)
Cockroach
done
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C)
Earthworm
done
clear
D)
Hydra
done
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View Answer play_arrow
question_answer 127) Which of the following is a correct match?
A)
Downs syndrome-21st chromosome
done
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B)
Sickle cell anaemia-X-chromosome
done
clear
C)
Haemophilia-y-chromomosome
done
clear
D)
Parkinson disease-X and Y chromosome
done
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View Answer play_arrow
question_answer 128) Mainly which type of hormones control the menstrual cycle in human beings?
A)
FSH
done
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B)
LH
done
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C)
FSH, LH and Estrogen
done
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D)
Progesterone
done
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View Answer play_arrow
question_answer 129) Which of the following is used in thyroid cancer?
A)
\[{{I}^{131}}\]
done
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B)
\[R{{a}^{224}}\]
done
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C)
\[{{U}^{238}}\]
done
clear
D)
\[{{C}^{14}}\]
done
clear
View Answer play_arrow
question_answer 130) Continuous bleeding from an injured part of body due to deficiency of:
A)
Vit. A
done
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B)
Vit. B
done
clear
C)
Vit. K
done
clear
D)
Vit. E
done
clear
View Answer play_arrow
question_answer 131) ATP is:
A)
nucleotide
done
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B)
nucleoside
done
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C)
nucleic acid
done
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D)
hormone
done
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View Answer play_arrow
question_answer 132) RR-21 is a variety of:
A)
Wheat
done
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B)
Gram
done
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C)
Rice
done
clear
D)
Sugarcane
done
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question_answer 133) Book lungs are respiratory organs of:
A)
Scorpion
done
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B)
Birds
done
clear
C)
Fishes
done
clear
D)
Earthworm
done
clear
View Answer play_arrow
question_answer 134) The cranial capacity of Java ape man is :
A)
1700 cc
done
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B)
1450 cc
done
clear
C)
450 cc
done
clear
D)
900 cc
done
clear
View Answer play_arrow
question_answer 135) Pace-maker is:
A)
SA-node
done
clear
B)
AV-node
done
clear
C)
SV-node
done
clear
D)
both b and c
done
clear
View Answer play_arrow
question_answer 136) Heterothellism was discovered in :
A)
Mucor
done
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B)
Aspergillus
done
clear
C)
Agarcuc
done
clear
D)
Albugo
done
clear
View Answer play_arrow
question_answer 137) Parasitic alga is :
A)
Chara
done
clear
B)
Oedogonium
done
clear
C)
Anabaena
done
clear
D)
Cephaleuros
done
clear
View Answer play_arrow
question_answer 138) TMV has genetic material as:
A)
ss RNA
done
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B)
ds RNA
done
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C)
ss DNA
done
clear
D)
ds DNA
done
clear
View Answer play_arrow
question_answer 139) Golden age of reptiles is:
A)
Coenozoic era
done
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B)
Palaeozoic era
done
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C)
Mesozoic era
done
clear
D)
None of these
done
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View Answer play_arrow
question_answer 140) Number of wild life is continuously decreasing. What is the main reason of this?
A)
Predation
done
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B)
Cutting down of forests
done
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C)
Destruction of habitats
done
clear
D)
Hunting
done
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question_answer 141) Seed dormancy is due to :
A)
ethylene
done
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B)
abscisic acid
done
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C)
IAA
done
clear
D)
Starch
done
clear
View Answer play_arrow
question_answer 142) Ediple part in Mango is :
A)
mesoc.irp
done
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B)
epicarp
done
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C)
cndocarp
done
clear
D)
epidermis
done
clear
View Answer play_arrow
question_answer 143) Maximum green house gases is released by which country ?
A)
India
done
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B)
USA
done
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C)
England
done
clear
D)
Germany
done
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View Answer play_arrow
question_answer 144) Which of the following are homologus organs?
A)
Wings of Birds and Locust
done
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B)
Wings of Bat and Butterfly
done
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C)
Leg of Cockroach and Frog
done
clear
D)
Wings of Birds and pectoral fins of Fish
done
clear
View Answer play_arrow
question_answer 145) Change in the sequence of nucleotide in DNA is called :
A)
mutagen
done
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B)
mutation
done
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C)
recombination
done
clear
D)
translation
done
clear
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question_answer 146) A food chain starts with :
A)
nitrogen fixing organisms
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B)
photosynthesising organisms
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C)
respiration
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D)
decomposers
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question_answer 147) Nepenthes is a :
A)
primary producer
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B)
consumer
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C)
both a and b
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D)
decomposer
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question_answer 148) Dudhawa National park is located in :
A)
Madhya Pradesh
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B)
Himachal Pradesh
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C)
Arunachal Pradesh
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D)
Uttar Pradesh
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question_answer 149) Glissons capsule is found in :
A)
pancreas
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B)
liver
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C)
gall bladder
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D)
heart
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question_answer 150) Which of the following is sexually transmitted disease (STD) ?
A)
Malaria
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B)
Syphilis
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C)
Goitre
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D)
TB
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question_answer 151) A ribosome is composed of :
A)
DNA, RNA and protein
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B)
only protein
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C)
protein and RNA
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D)
RNA and DNA
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question_answer 152) A nucleoside differ from a nucleotide on not having:
A)
phosphate
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B)
calcium
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C)
nitrogen base
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D)
phosphate and sugar
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question_answer 153) DNA is present in:
A)
Nucleus only
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B)
Mitochondria only
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C)
Chloropbst only
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D)
All of these
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question_answer 154) AIDS can be transmitted by :
A)
blood circulation
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B)
handshake
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C)
court ship
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D)
by using the utensils of infected person
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question_answer 155) The chief difference between RBCs of Human and Frog :
A)
only Human RBCs have haemoglobin
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B)
Human RBCs have more nuclei
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C)
Human RBCs are without nucleus
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D)
Frog RBCs are without nucleus
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question_answer 156) The cell theory was proposed by :
A)
Schleiden and Schwann
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B)
Hugo dc Vries
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C)
Robert Hooke
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D)
R. Virchow
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question_answer 157) Which of the plant yield sunhemp ?
A)
Cnniinbis
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B)
Crotaleria
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C)
Corchorus
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D)
Hibiscus
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question_answer 158) LDS is obtained from :
A)
Raiiwoifin
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B)
Cinchofvi
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C)
Cannabis
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D)
daviceps
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question_answer 159) Which group of the following scientists discovered the EMP pathway of glycolysis :
A)
Embdcn, Meyrrliof and Parnas
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B)
Emerson, Hoffman and Peterson
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C)
Embden, Morrison and Pitcher
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D)
Avery, Mcleon and McCarthy
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question_answer 160) Rennin is used in cheese industry is :
A)
antibiotic
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B)
alkaloid
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C)
enzyme
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D)
inhibitor
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question_answer 161) Plasmodium in man is inoculated by
A)
Anopheles male
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B)
Anopheles female
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C)
Culex male
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D)
Ades female
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question_answer 162) Bordeaux mixture is used as a:
A)
fertilizer
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B)
fungicide
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C)
rodenticide
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D)
soil testing chemical
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question_answer 163) Blood of which blood group can be given to a person with blood group A ?
A)
A only
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B)
O only
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C)
A or O
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D)
all of these
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question_answer 164) Which one of the following bacterium has potential for nitrogen fixation?
A)
Nitrosomonas
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B)
Azolla
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C)
Nitrobacter
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D)
Rhizobium
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question_answer 165) In meiotic division, centromere divide during:
A)
diplotene
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B)
metaphase-I
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C)
pachytene
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D)
anaphase-II
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question_answer 166) The first \[C{{O}_{2}}\]acceptor in \[{{C}_{4}}\]plants is:
A)
PEP
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B)
RuDP
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C)
PGA
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D)
OAA
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question_answer 167) Calvin cycle occurs in :
A)
chloroplnst
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B)
cytoplasm
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C)
mitochondria
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D)
glyoxysome
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question_answer 168) Which one of the following hormones is not found in plants?
A)
2, 4-D
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B)
\[G{{A}_{2}}\]
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C)
Gibberellin
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D)
IAA
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question_answer 169) A gene is made up of:
A)
DNA
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B)
RNA
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C)
either RNA or DNA
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D)
amino acids Generally gene is made up of DNA but in some viruses gene is made up of RNA.
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question_answer 170) Chlorophyll is soluble in:
A)
water
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B)
organic solvents
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C)
both a and b
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D)
none of these
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question_answer 171) A contraceptive pill contains ;
A)
progesterone and estrogen
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B)
spermicidal salts
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C)
chemicals that cause automatic abortion
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D)
chemicals that prevents fertilization of ovum
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question_answer 172) Jully 11 is :
A)
World Environment Day
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B)
World population Day
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C)
World AIDS Day
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D)
World Education Day
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question_answer 173) B.C.G. vaccine works against:
A)
Bacillus Comma, Gram
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B)
Diphtheria, Pertussis and Tetanus
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C)
Measles, Mumps and Rubella
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D)
T.B. Bacillus Calmette-Guerin
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question_answer 174) Sweet potato is the modification of:
A)
tap root
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B)
stem
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C)
leaf
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D)
adventitious root
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question_answer 175) Amino acid binding site in f-RNA is:
A)
5 end
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B)
anticodon loop
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C)
CCA 3 end
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D)
DHU loop
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question_answer 176) Tissue present in an annual ring is :
A)
secondary xylem and phloem
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B)
primary xylem and phloem
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C)
secondary xylem only
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D)
primary phloem and secondary xylem
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question_answer 177) The termination codons are:
A)
UAU, UAC, UCU
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B)
UCU, UGC, UGG
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C)
UAA, UAG, UGA
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D)
UCC, UCA, UCG
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question_answer 178) Which of the following is not an insect?
A)
Mosquito
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B)
Ant
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C)
Spider
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D)
Termite
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question_answer 179) Which of the following is not a flower?
A)
Rose
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B)
Lotus
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C)
Sunflower
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D)
Passion flower
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question_answer 180) A plasmolysed cell can be deplasmolysed by placing it in :
A)
isotonic solution
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B)
hypertonic solution
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C)
saturated solution
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D)
pure water or hypotonic solution
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question_answer 181) In human body urea is produced as an excretory product in the :
A)
liver
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B)
kidneys
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C)
urinary bladder
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D)
pancreas
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question_answer 182) Electron microscope is invented by :
A)
Knoll and Ruska
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B)
Robert Hooke
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C)
Leeuwonhoek
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D)
Pasteur
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question_answer 183) HPLC stands for :
A)
high performance liquid chromatography
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B)
heavy partical liquid chromatography
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C)
heat power liquid chromatography
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D)
high potential low chromatography
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question_answer 184) Cryobiology deals with:
A)
temperature effect
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B)
physiology
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C)
anatomy
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D)
characteristics of biomolecule
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question_answer 185) Penicillin an antibiotic was discovered by:
A)
Pasteur
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B)
Koch
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C)
Flemming
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D)
Kurosawa
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question_answer 186) In human beings, the number of cranial nerves are:
A)
10 pairs
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B)
12 pairs
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C)
6 pairs
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D)
20 pairs
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question_answer 187) Blood pressure of healthy person is :
A)
120/80
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B)
140/60
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C)
90/60
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D)
200/130
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question_answer 188) Agar-agar which is used in tissue culture is obtained from a :
A)
fungi
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B)
algae
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C)
pteridophyte
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D)
bryophyte
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question_answer 189) Molecular scissors used in genetic engineering is:
A)
DNA polymerase
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B)
DNA ligase
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C)
restriction endonuclease
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D)
helicase
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question_answer 190) The species of animal protected in Kaziranga sanctuary is:
A)
Panthera Sea
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B)
Rhinoceros uniforms
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C)
Macaco mulatto
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D)
Panthera tigris
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question_answer 191) The largest gland is the human body is:
A)
pancreas
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B)
brain
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C)
gall bladder
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D)
liver
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question_answer 192) Haversian systems are found in the bones of:
A)
Pigeon
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B)
Panther
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C)
Pipe fish
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D)
Python
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question_answer 193) R.Q of sprouting potato tubers will be :
A)
1
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B)
< 1
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C)
> 1
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D)
0
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question_answer 194) Fem prothallus develops from:
A)
spore
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B)
oospore
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C)
elaters
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D)
antherozoid
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question_answer 195) Winged pollen grain is the characteristic feature of:
A)
Cycas
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B)
Ephedra
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C)
Gnetum
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D)
Pinus
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question_answer 196) In which bee wax glands are found?
A)
Drone
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B)
Workers
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C)
Queen bee
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D)
All of the above
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question_answer 197) Diabetes mellitus is due to lack of:
A)
starch in blood
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B)
trypsin in pancreatic Juice
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C)
ADH reaching in kidneys
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D)
insulin in blood
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question_answer 198) Deficiency of vit. C causes:
A)
pellagra
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B)
diabetes
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C)
haemophilia
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D)
scurvy
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question_answer 199) What is introduced in polio vaccine ?
A)
Antibodies
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B)
Antigen
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C)
Antibiotics
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D)
Bacteriostatic agent
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question_answer 200) Chromosomes are lined up in the equatorial plane during?
A)
metaphase
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B)
annphase
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C)
telophase
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D)
interphase
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