question_answer 1) How many seconds are there in a light fermi?
A)
\[{{10}^{-15}}s\]
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B)
\[3.0\times {{10}^{8}}s\]
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C)
\[3.33\times {{10}^{-24}}s\]
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D)
\[3.3\times {{10}^{-7}}s\]
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question_answer 2) A machine is delivering constant power to drive a body along a straight line. What is the relation between the distance travelled by the body against time?
A)
\[{{s}^{2}}\propto {{t}^{3}}\]
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B)
\[{{s}^{2}}\propto {{t}^{-3}}\]
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C)
\[{{s}^{2}}\propto {{t}^{2}}\]
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D)
\[s\propto {{t}^{3}}\]
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question_answer 3) The square of resultant of two equal forces is three times their product. Angle between the forces is
A)
\[\pi \]
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B)
\[\frac{\pi }{2}\]
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C)
\[\frac{\pi }{4}\]
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D)
\[\frac{\pi }{3}\]
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question_answer 4) An object placed on a ground is in stable equilibrium. If the object is given a slight push then initially the position of centre of gravity
A)
moves nearer to ground
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B)
rises higher above the ground
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C)
remains as such
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D)
may remain at same level
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question_answer 5) How much work must be done by a force on 50 kg body in order to accelerate it from rest to 20 m/s in 10 s?
A)
\[{{10}^{3}}J\]
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B)
\[{{10}^{4}}J\]
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C)
\[2\times {{10}^{3}}J\]
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D)
\[4\times {{10}^{4}}J\]
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question_answer 6) Moment of inertia of circular loop of radius R about the axis of rotation parallel to horizontal diameter at a distance R/2 from it is
A)
\[M{{R}^{2}}\]
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B)
\[\frac{1}{2}M{{R}^{2}}\]MR
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C)
\[2M{{R}^{2}}\]
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D)
\[\frac{3}{4}M{{R}^{2}}\]
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question_answer 7) What will happen to the weight of the body at the south pole, if the earth stops rotating about its polar axis?
A)
No change
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B)
Increases
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C)
Decreases but does not become zero
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D)
Reduces to zero
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question_answer 8) A beam of metal supported at the two ends is loaded at tlie centre. The depression at the centre is proportional to
A)
\[{{Y}^{2}}\]
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B)
\[Y\]
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C)
\[\frac{1}{Y}\]
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D)
\[\frac{1}{{{Y}^{2}}}\]
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question_answer 9) A common hydrometer reads specific gravity of liquids. Compared to the 1.6 mark of the stem the mark 1.5 will be
A)
upwards
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B)
downwards
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C)
in the same place
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D)
may be upward or downward depending upon the hydrometer
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question_answer 10) A balloon contains\[500\text{ }{{m}^{3}}\]of Heat\[27{}^\circ C\]and 1 atmospheric pressure. The volume of Heat\[-3{}^\circ C\]and 0.5 atmospheric pressure will be
A)
\[700{{m}^{3}}\]
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B)
\[900{{m}^{3}}\]
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C)
\[1000{{m}^{3}}\]
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D)
\[500{{m}^{3}}\]
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question_answer 11) Which of the following is different from others?
A)
Wavelength
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B)
Velocity
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C)
Frequency
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D)
Amplitude
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question_answer 12) Two pendulums have time periods T and 5T/4. They starts SHM at the same time from the mean position. What will be the phase difference between them after the bigger pendulum completed one oscillation ?
A)
\[45{}^\circ \]
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B)
\[90{}^\circ \]
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C)
\[60{}^\circ \]
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D)
\[30{}^\circ \]
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question_answer 13) A balloon is filled with hydrogen. For sound waves, this balloon behaves like
A)
a converging lens
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B)
a diverging lens
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C)
a concave mirror
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D)
None of the above
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question_answer 14) Each of the two point charges are doubled and their distance is halved. Force of interaction becomes n times, where n is
A)
4
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B)
1
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C)
1/16
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D)
16
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question_answer 15) Two soap bubbles have radii in the ratio of 2:1. What is the ratio of excess pressures inside them?
A)
1: 2
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B)
1: 4
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C)
2:1
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D)
4 : 1
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question_answer 16) The phenomenon of Brownian movement may be taken as evidence of
A)
kinetic theory of matter
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B)
EMT of radiation
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C)
corpuscular theory of light
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D)
photoelectric phenomenon
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question_answer 17) Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A)
interference
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B)
diffraction
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C)
reflection
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D)
refraction
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question_answer 18) An ice block floats in a liquid whose density is less than water. A part of block is outside the liquid. When whole of ice has melted, the liquid level will
A)
rise
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B)
go down
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C)
remain same
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D)
first rise then go down
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question_answer 19) Two bodies of different masses of 2 kg and 4 kg moving with velocities 2 m/s and 10 m/s towards each other due to mutual gravitational attraction. What is the velocity of their centre of mass?
A)
5 m/s
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B)
6 m/s
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C)
8 m/s
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D)
Zero
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question_answer 20) Given that the displacement of an oscillating particle is given by\[y=Asin(B~+Ct+D)\]. The dimensional formula for (ABCD) is
A)
\[[{{M}_{0}}{{L}^{-1}}{{T}^{0}}]\]
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B)
\[[M{{\,}^{0}}{{L}^{0}}{{T}^{-1}}]\]
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C)
\[[{{M}^{0}}{{L}^{-1}}{{T}^{-1}}]\]
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D)
\[[{{M}^{0}}{{L}^{0}}{{T}^{0}}]\]
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question_answer 21) Two waves having intensities in the ratio of 9:1 produce interference. The ratio of maximum to minimum intensity is equal:
A)
10 : 8
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B)
9 : 1
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C)
4 :1
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D)
2 : 1
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question_answer 22) Four wires each of same length, diameter as. materials are connected to each other to form square. If the resistance of each wire is R. then equivalent resistance across the opposite corners is
A)
R
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B)
R/2
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C)
R/4
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D)
None of these
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question_answer 23) An electric motor runs on DC source of emf 200 V and draws a current of 10 A. If the efficiency be 40% then the resistance of armature is
A)
20
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B)
80
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C)
120
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D)
160
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question_answer 24) A capacitor having capacity of 2.0 \[\mu F\] is charged to 200 V and then the plates of the capacitor are connected to a resistance wire The heat produced in joule will be
A)
\[2\times {{10}^{-2}}\]
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B)
\[4\times {{10}^{-2}}\]
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C)
\[4\times {{10}^{4}}\]
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D)
\[4\times {{10}^{10}}\]
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question_answer 25) A voltmeter of range 2V and resistance 300\[\Omega \] cannot be converted into ammeter of range
A)
1A
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B)
1mA
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C)
100mA
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D)
10mA
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question_answer 26) If a magnet is suspended at angle\[30{}^\circ \]to the magnetic meridian, the dip needle makes angle of\[45{}^\circ \]with the horizontal. The real dip is
A)
\[{{\tan }^{-1}}(\sqrt{3/2})\]
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B)
\[{{\tan }^{-1}}(\sqrt{3})\]
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C)
\[{{\tan }^{-1}}(\sqrt{3/2})\]
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D)
\[{{\tan }^{-1}}(2/\sqrt{3})\]
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question_answer 27) Which quantity is increased in step-down transformer?
A)
Current
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B)
Voltage
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C)
Power
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D)
Frequency
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question_answer 28) The ratio of intensity at the centre of a bright fringe to the intensity at a point distant or one fourth of the distance between two successive bright fringes will be
A)
4
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B)
3
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C)
2
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D)
1
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question_answer 29) Which has more luminous efficiency?
A)
A 40 W bulb
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B)
A 40 W fluorescent tube
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C)
Both have same
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D)
Cannot say
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question_answer 30) When a ray of light enters from one medium to another, then its velocity in second medium becomes double. The maximum value of angle of incidence, so that total internal reflection may not take place will be
A)
\[60{}^\circ \]
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B)
\[180{}^\circ \]
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C)
\[90{}^\circ \]
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D)
\[30{}^\circ \]
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question_answer 31) What should be the velocity of an electron so that its momentum becomes equal to that of a photon of wavelength\[5200\overset{o}{\mathop{\text{A}}}\,\]?
A)
700 m/s
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B)
1000 m/s
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C)
1400 m/s
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D)
2800 m/s
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question_answer 32) A radioactive element has half-life period of 600 years. After 3000 years, what amount will remain?
A)
\[\frac{1}{2}\]
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B)
\[\frac{1}{16}\]
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C)
\[\frac{1}{8}\]
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D)
\[\frac{1}{32}\]
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question_answer 33) Beyond which frequency, the ionosphere bends any incident electromagnetic radiation but do not reflect it back towards the earth?
A)
50MHz
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B)
40MHz
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C)
30MHz
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D)
20MHz
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question_answer 34) In intrinsic semiconductor at room temperature number of electrons and holes are
A)
equal
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B)
zero
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C)
unequal
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D)
infinite
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question_answer 35) The unit of thermal conductance is
A)
\[W{{K}^{-1}}\]
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B)
\[J{{K}^{-1}}\]
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C)
WK
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D)
JK
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question_answer 36) The value of P so that the vectors \[2\hat{i}-\hat{j}+\hat{k}\hat{,}+2\hat{j}-3\hat{k}\] and \[3\hat{i}+p\hat{j}+5\hat{k}\] are coplanar should be
A)
16
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B)
\[-4\]
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C)
4
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D)
\[-8\]
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question_answer 37) A capacitor of capacitance C has charge Q and stored energy is W. If the charge is increased to 2Q, the stored energy will be
A)
\[\frac{W}{4}\]
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B)
\[\frac{W}{2}\]
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C)
\[2W\]
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D)
\[4W\]
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question_answer 38) Pure silicon at 300 K has equal electron \[({{n}_{e}})\] and hole \[({{n}_{h}})\] concentration of\[1.5\times {{10}^{16}}{{m}^{-3}}\]. Doping by indium increases \[{{n}_{h}}\] to \[4.5\times {{10}^{22}}{{m}^{-3}}\] . The \[{{n}_{e}}\] in the doped silicon is
A)
\[9\times {{10}^{5}}\]
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B)
\[5\times {{10}^{9}}\]
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C)
\[2.25\times {{10}^{11}}\]
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D)
\[3\times {{10}^{19}}\]
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question_answer 39) A cylindrical conductor is placed near another positively charged conductor. The net charge acquired by the cylindrical conductor will be
A)
positive only
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B)
negative only
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C)
zero
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D)
either positive or negative
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question_answer 40) If the unit of force is 1 kilo newton, the length is 1 km and time 100 s, what will be the unit of mass?
A)
1,000kg
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B)
1kg
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C)
10,000kg
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D)
100kg
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question_answer 41) Ethyl acetate is obtained when methyl magnesium bromide reacts with
A)
ethyl formate
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B)
ethyl chloroformate
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C)
acetyl chloride
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D)
carbon dioxide
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question_answer 42) The most stable hydride is
A)
\[N{{H}_{3}}\]
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B)
\[P{{H}_{3}}\]
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C)
\[As{{H}_{3}}\]
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D)
\[Sb{{H}_{3}}\]
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question_answer 43) The ratio of amounts of\[{{H}_{2}}S\]needed to precipitate all the metal ions from 100 mL of 1 M\[AgN{{O}_{3}}\]and 100 mL of 1M\[CuS{{O}_{4}}\]will be
A)
\[1:1\]
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B)
\[1:2\]
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C)
\[2:1\]
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D)
None of these
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question_answer 44) If the electronegativity difference between two atoms A and B is 2.0, then the percentage of co-valent character in the molecule is
A)
54%
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B)
46%
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C)
23%
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D)
72%
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question_answer 45) Which of the following reaction defines\[\Delta H_{f}^{o}\]?
A)
\[{{C}_{(diamond)}}+{{O}_{2}}(g)\xrightarrow[{}]{{}}C{{O}_{2}}(g)\]
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B)
\[\frac{1}{2}{{H}_{2}}(g)+\frac{1}{2}{{F}_{2}}(g)\xrightarrow[{}]{{}}HF(g)\]
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C)
\[{{N}_{2}}(g)+3{{H}_{2}}(g)\xrightarrow[{}]{{}}2N{{H}_{3}}(g)\]
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D)
\[CO(g)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow[{}]{{}}C{{O}_{3}}(g)\]
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question_answer 46) Formaldehyde polymerizes to form glucose according to the reaction \[6HCHO{{C}_{6}}{{H}_{12}}{{O}_{6}}\] The theoretically computed equilibrium constant for this reaction is found to be\[6\times {{10}^{22}}\]. If 1 M solution of glucose dissociates according to the above equilibrium, the concentration of formaldehyde in the solution will be
A)
\[1.6\times {{10}^{-2}}M\]
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B)
\[1.6\times {{10}^{-4}}M\]
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C)
\[1.6\times {{10}^{-6}}M\]
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D)
\[1.6\times {{10}^{-8}}M\]
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question_answer 47) The electronic configuration of a dipositive ion\[{{M}^{2+}}\]is 2, 8, 14 and its mass number is 56. The number of neutrons present is
A)
32
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B)
42
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C)
30
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D)
34
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question_answer 48) If X is the total number of collisions which a gas molecule register with others per unit time under particular conditions, then the collision frequency of the gas containing JV molecules per unit volume is
A)
X/N
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B)
NX
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C)
2 NX
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D)
NX/2
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question_answer 49) A hypothetical reaction\[{{A}_{2}}+{{B}_{2}}\to 2AB\]follows the mechanism as given below, \[{{A}_{2}}\rightleftharpoons A+A\] (fast) \[A+{{B}_{2}}\xrightarrow[{}]{{}}AB+B\] (slow) \[A+B\xrightarrow[{}]{{}}AB\] (fast) The order of the overall reaction is
A)
2
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B)
1
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C)
11
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D)
0
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question_answer 50) The mass of helium atom of mass number 4 is 4.0026 amu, while that of the neutron and proton are 1.0087 and 1.0078 respectively on the same scale. Hence, the nuclear binding energy per nucleon in the .helium atom is nearly
A)
5MeV
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B)
7MeV
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C)
10MeV
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D)
14MeV
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question_answer 51) Which of the following statements is correct? Dielectric constant of\[{{H}_{2}}{{O}_{2}}\]
A)
increases with dilution
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B)
decreases with dilution
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C)
is unaffected on dilution
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D)
None of the above
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question_answer 52) For the square planar complex [M] (where, M= central metal and a, b, c and d are monodentate ligands), the number of possible geometrical isomers are
A)
1
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B)
2
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C)
3
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D)
4
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question_answer 53) Potash alum dissolves in water to give a/an
A)
acidic solution of\[{{H}_{2}}S{{O}_{4}}\]
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B)
alkaline solution
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C)
acidic solution of\[HCl\]
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D)
neutral solution
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question_answer 54) The discovery of which of the following group of elements gave death blow to the Newlands law of octaves?
A)
Inert gases
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B)
Alkaline earths
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C)
Rare earths
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D)
Actinides
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question_answer 55) Vant Hoff factor more than unity indicates that the solute in solution has
A)
dissociated
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B)
associated
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C)
Both [a] and [b]
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D)
cannot say anything
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question_answer 56) How many number of atoms are there in a cube based unit cell having one atom on each corner and two atoms on each body diagonal of cube?
A)
8
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B)
6
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C)
4
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D)
9
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question_answer 57) Bleeding due to a cut can be stopped by applying ferric chloride solution in the laboratory. This is due to
A)
co-agulation of negatively charged blood particles by\[F{{e}^{3+}}\]ions
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B)
co-agulation of positively charged blood particles by CF ions
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C)
reaction taking place between ferric ions and the haemoglobin forming a complex
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D)
common element, iron, in both\[FeC{{l}_{3}}\]and haemoglobin.
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question_answer 58) Which one of the following solutions will have highest conductivity?
A)
\[0.1\text{ }M\text{ }C{{H}_{3}}COOH\]
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B)
\[0.1\,M\,NaCl\]
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C)
\[0.1\,M\,KN{{O}_{3}}\]
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D)
\[0.1\,M\,HCl\]
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question_answer 59) One of the following metals forms a volatile compound and this property is taken advantage for its extraction. This metal is
A)
iron
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B)
nickel
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C)
cobalt
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D)
tungsten
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question_answer 60) If\[N{{a}^{+}}\]is larger than\[M{{g}^{2+}}\]ion an\[{{S}^{2-}}\]ion is larger than\[C{{l}^{-}}\]ion, which of the following will be stable soluble in water?
A)
Sodium chloride
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B)
Sodium sulphide
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C)
Magnesium chloride
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D)
Magnesium sulphide
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question_answer 61) Impurities of Cu and Ag from gold are removed by
A)
boiling impure gold with dil.\[{{H}_{2}}S{{O}_{4}}\]
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B)
boiling impure gold with cone.\[{{H}_{2}}S{{O}_{4}}\]
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C)
electrolytically
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D)
Both [b] and [c]
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question_answer 62) Which of the following salt would give\[S{{O}_{2}}\] with hot and dil.\[{{H}_{2}}S{{O}_{4}}\]and also decolourises \[B{{r}_{2}}\]water ?
A)
\[N{{a}_{2}}S{{O}_{3}}\]
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B)
\[NaHS{{O}_{4}}\]
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C)
\[N{{a}_{2}}S{{O}_{4}}\]
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D)
\[N{{a}_{2}}S\]
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question_answer 63) If two compounds have the same empirical formula but different molecular formulae, they must have
A)
different percentage composition
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B)
different molecular weights
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C)
same viscocity
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D)
same vapour density
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question_answer 64) Among the following which one has weakest carbon-halogen bond?
A)
Benzyl bromide
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B)
Bromobenzene
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C)
Vinyl bromide
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D)
Benzyl chloride
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question_answer 65) Petrochemicals can be used to prepare
A)
synthetic fibres
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B)
pesticides
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C)
plastics
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D)
All of these
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question_answer 66) tert-butyl methyl ether on heating with anhydrous HI in ether gives
A)
\[C{{H}_{3}}OH+{{(C{{H}_{3}})}_{3}}Cl\]
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B)
\[C{{H}_{3}}I+{{(C{{H}_{3}})}_{3}}COH\]
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C)
\[C{{H}_{3}}I+{{(C{{H}_{3}})}_{3}}Cl\]
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D)
None of the above
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question_answer 67) The correctly reported answer of the addition of 4.523, 2.3 and 6.24 will have significant figures
A)
two
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B)
three
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C)
four
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D)
five
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question_answer 68) What happens if\[CC{{l}_{4}}\]is treated with\[AgN{{O}_{3}}\]?
A)
A white ppt. of\[AgCl\]will form
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B)
\[N{{O}_{2}}\] will be evolved
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C)
\[CC{{l}_{4}}\]will dissolve in\[AgN{{O}_{3}}\]
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D)
Nothing will happen
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question_answer 69) \[^{23}Na\] is more stable isotope of Na. Find out the process by which\[_{11}^{24}Na\]can undergo radioactive decay
A)
\[{{\beta }^{-}}\]emission
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B)
\[\alpha -\]emission
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C)
\[{{\beta }^{+}}\] emission
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D)
K electron capture
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question_answer 70) The heat of combustion of solid benzoic acid at constant volume is\[-321.30\text{ }kJ\] at\[27{}^\circ C\]. The heat of combustion at constant pressure is
A)
\[-321.30-300R\]
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B)
\[-321.30+300R\]
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C)
\[-321.30-150R\]
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D)
\[-321.30+900\text{ }R\]
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question_answer 71) In which of the following compounds\[-OH\] group is least reactive?
A)
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B)
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C)
done
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D)
All are equally reactive.
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question_answer 72) lodoform is obtained when ethanol is heated with
A)
\[KI\]and aq KOH
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B)
\[{{I}_{2}}\]and aq\[KOH\]
done
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C)
\[{{I}_{2}}/\]aq\[KI\]
done
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D)
\[HI\]and\[HI{{O}_{3}}\]
done
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question_answer 73) The total number of acylic isomers including the stereoisomers (geometrical and optical), with the molecular formula\[{{C}_{4}}{{H}_{7}}Cl\]is
A)
12
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B)
11
done
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C)
10
done
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D)
9
done
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question_answer 74) The alkyl halides that can be made by free radical halogenation of alkanes are
A)
\[RCl,\]and\[RBr\]but not RP or\[RI\]
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B)
\[RF,RCl\]and\[RBr\]but not\[RI\]
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C)
\[RF,\text{ }RCl,\text{ }RBr,\text{ }RI\]
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D)
\[RF,RCl\]and\[RI\]but\[RBr\]
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question_answer 75) Silica is a/an
A)
acidic flux only
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B)
gangueonly
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C)
basic flux only
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D)
both gangue and acidic flux
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question_answer 76) The nodes present in\[3p-\]orbitals are
A)
one spherical, one planar
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B)
two spherical
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C)
two planar
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D)
one planar
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question_answer 77) The number of\[\alpha -\]and\[\beta -\]particles emitted in nuclear reaction\[_{90}T{{h}^{228}}{{\xrightarrow[{}]{{}}}_{83}}B{{i}^{212}}\]are respectively
A)
4, 1
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B)
3, 7
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C)
8, 1
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D)
4, 7
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question_answer 78) Two bottles A and B contains 1 M and 1m aqueous solution of sulphuric acid respectively
A)
A is more concentrated than B
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B)
B is more concentrated than A
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C)
concentration of A is equal to concentration of B
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D)
it is not possible to compare the concentrations
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question_answer 79) A salt on treatment with dil.\[HCl\] gives a pungent smelling gas and a yellow precipitate. The salt gives green flame test and a yellow precipitate with potassium chromate the salt is
A)
\[NiS{{O}_{4}}\]
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B)
\[Ba{{S}_{2}}{{O}_{3}}\]
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C)
\[Pb{{S}_{2}}{{O}_{3}}\]
done
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D)
\[CuS{{O}_{4}}\]
done
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question_answer 80) Which of the oxide of manganese is amphoteric?
A)
\[Mn{{O}_{2}}\]
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B)
\[M{{n}_{2}}{{O}_{3}}\]
done
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C)
\[M{{n}_{2}}{{O}_{7}}\]
done
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D)
\[MnO\]
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question_answer 81) Which of the following alkenes is most reactive towards cationic polymerization?
A)
\[C{{H}_{2}}=CHC{{H}_{3}}\]
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B)
\[{{H}_{2}}C=CHCl\]
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C)
\[{{H}_{2}}C=CH{{C}_{6}}{{H}_{5}}\]
done
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D)
\[{{H}_{2}}C=CHC{{O}_{2}}C{{H}_{3}}\]
done
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question_answer 82) An organic compound,\[{{C}_{3}}{{H}_{6}}O\]does not give a precipitate with 2, 4-dinitrophenyl hydrazine reagent and does not react with metallic sodium. It could be
A)
\[C{{H}_{3}}C{{H}_{2}}CHO\]
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B)
\[C{{H}_{2}}=CHC{{H}_{2}}OH\]
done
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C)
\[C{{H}_{3}}COC{{H}_{3}}\]
done
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D)
\[C{{H}_{2}}=CHOC{{H}_{3}}\]
done
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question_answer 83) Oxidation of 1-butene with hot\[KMn{{O}_{4}}\]solution produces
A)
\[C{{H}_{3}}C{{H}_{2}}COOH+HCOOH\]
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B)
\[C{{H}_{3}}C{{H}_{2}}COOH+C{{O}_{2}}\]
done
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C)
\[C{{H}_{3}}COOH+C{{O}_{2}}\]
done
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D)
\[{{(C{{H}_{3}})}_{2}}C=O+C{{O}_{2}}\]
done
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question_answer 84) A mixture of 1-chlorobutane and 2-chloro- butane when treated with alcoholic KOH gives:
A)
1-butene
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B)
2-butene
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C)
isobutylene
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D)
mixture of 1-butene +2-butene
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question_answer 85)
Out of the two compounds shown below, the vapour pressure of B at a particular temperature is expected to be
A)
higher than that of A
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B)
lower than that of B
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C)
same as that of A
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D)
can be higher or lower depending upon the size of the vessel.
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question_answer 86) Roasted tin stone ore after washing with water is known as
A)
block tin
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B)
white tin
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C)
black tin
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D)
granulated tin
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question_answer 87) Which of the following has strongest hydrogen bonding?
A)
Ethylamine
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B)
Ammonia
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C)
Ethyl alcohol
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D)
Diethyl ether
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question_answer 88) Consider the following statements The rate law for the acid catalysed hydrolysis of an ester being given as Rate\[=k[{{H}^{+}}]\] [ester]\[=k\][ester]. If the acid concentration is doubled at constant ester concentration 1. The second order rate constant, k is doubled. 2. The pseudo first order rate constant, k is doubled. 3. The rate of the reaction is doubled Which of the above statements are correct?
A)
1 and 2
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B)
2 and 3
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C)
1 and 3
done
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D)
1, 2 and 3
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question_answer 89) A fibrous mineral which can withstand red hot flames without any damage is
A)
talc
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B)
glass wool
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C)
soap stone
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D)
asbestos
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question_answer 90) When o- or\[p-\]phenolsulphonic acid is treated with bromine water, the product formed is
A)
2, 4-dibromophenol
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B)
2, 4, 6-tribromophenol
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C)
3-bromophenol boric acid
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D)
3, 5-dibromophenol
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question_answer 91) An alkene on vigorous oxidation with\[KMn{{O}_{4}}\]gives only acetic acid. The alkene is
A)
\[C{{H}_{3}}C{{H}_{2}}CH=C{{H}_{2}}\]
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B)
\[C{{H}_{3}}CH=CHC{{H}_{3}}\]
done
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C)
\[{{(C{{H}_{3}})}_{2}}C=C{{H}_{2}}\]
done
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D)
\[C{{H}_{3}}CH=C{{H}_{2}}\]
done
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question_answer 92) Which of the following has the maximum heat of hydrogenation?
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 93) Deflection back of a few particles on hitting thin foil of gold shows that
A)
nucleus is heavy
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B)
nucleus is small
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C)
Both [a] and [b]
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D)
electrons create hinderance in the movement of\[\alpha -\]particles
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question_answer 94) Which of the following does not form an oxime?
A)
Glucose
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B)
Glucose penta-acetate
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C)
Arabinose
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D)
Galactose
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question_answer 95) An aromatic compounds X with molecular formul\[{{C}_{8}}{{H}_{10}}\]produces on nitration one mononitro derivative and three dinitro derivatives. Compound X would be
A)
ethyl benzene
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B)
\[m-\]xylene
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C)
\[o-\]xylene
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D)
\[p-\]xylene
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question_answer 96) The end product C in the following sequence of chemical reactions is \[C{{H}_{3}}COOH\xrightarrow[{}]{CaC{{O}_{3}}}A\xrightarrow[{}]{heat}B\xrightarrow[{}]{N{{H}_{2}}OH}C\]
A)
acetaldehyde oxime
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B)
formaldehyde oxime
done
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C)
methyl nitrate
done
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D)
acetoxime
done
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question_answer 97) The only cations present in a slightly acidic solution are\[F{{e}^{3+}},Z{{n}^{2+}}\]and\[C{{u}^{2+}}\]The reagent that when added in excess to this solution would identify and separate\[F{{e}^{3+}}\] in one step is
A)
\[2M\,HCl\]
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B)
\[6M\,N{{H}_{3}}\]
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C)
\[6M\,NaOH\]
done
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D)
\[{{H}_{2}}S\,gas\]
done
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question_answer 98) The nucleus of an atom can he assumed to be spherical. The radius of the nucleus of mass number A is given by\[1.25\times {{10}^{-13}}\times {{A}^{1/3}}cm\]. Radius of atom is one A. If the mass number is 64, then the fraction of the atomic volume that is occupied by the nucleus is
A)
\[1.0\times {{10}^{-3}}\]
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B)
\[5.0\times {{10}^{-5}}\]
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C)
\[2.5\times {{10}^{-2}}\]
done
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D)
\[1.25\times {{10}^{-13}}\]
done
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question_answer 99) Carboxylic acids readily dissolve in aqueous sodium bicarbonate, liberating carbon dioxide. Which one of the following is correct?
A)
Free carboxylic acid and its conjugate base are of comparable stability
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B)
The free carboxylic acid is more stable than its conjugate base
done
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C)
The conjugate base of the carboxylic acid is more stable than the free carboxylic acid
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D)
The conjugate acid of the carboxylic acid is more stable than the free carboxylic acid
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question_answer 100) Lead pipes can be used safely for carrying
A)
soft water
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B)
soft water first heated with lime stone
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C)
conc. \[HN{{O}_{3}}\]
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D)
soft as well as hard water
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question_answer 101) The branch of biology, which deals with the study of processes and functions of an organism, is called
A)
histology
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B)
anatomy
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C)
physiology
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D)
entomology
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question_answer 102) Virus multiplies in
A)
soil
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B)
dead tissue
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C)
living tissue
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D)
culture medium
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question_answer 103) Which of the following technique, other than microscopy is used for study of cell ?
A)
Maceration
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B)
Plasmolysis
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C)
Chromatography
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D)
Autoradiography
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question_answer 104) Robert Hooke used the term cell in the year
A)
1650
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B)
1665
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C)
1865
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D)
1960
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question_answer 105) Protein synthesis takes place in
A)
ribosomes
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B)
chloroplasts
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C)
mitochondria
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D)
Golgi bodies
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question_answer 106) Replication of centriole occurs during
A)
interphase
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B)
prophase
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C)
late prophase
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D)
late telophase
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question_answer 107) L-shaped chromosomes are also called
A)
acrocentric
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B)
telocentric
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C)
sub-metacentric
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D)
None of these
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question_answer 108) Which of the following is/are grouped under phanerogams?
A)
Angiosperms
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B)
Gymnosperms
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C)
Pteridophytes
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D)
Both [a] and [b]
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question_answer 109) A bacterium divides after every 35 minutes. If a culture containing \[{{10}^{5}}\]cells per mL is grown, then cell concentration per mL after 175 minutes will be
A)
\[175\times {{10}^{5}}\]
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B)
\[125\times {{10}^{5}}\]
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C)
\[48\times {{10}^{5}}\]
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D)
\[32\times {{10}^{5}}\]
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question_answer 110) Cladonia rangiferina is a/an
A)
algae
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B)
lichen
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C)
fungus
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D)
angiosperm
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question_answer 111) Which of the following is an algal parasite?
A)
Volvox
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B)
Ulothrix
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C)
Porphyra
done
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D)
Cephaleuros
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question_answer 112) Which of the following is true about bryophytes ?
A)
They are thalloid
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B)
They contain chloroplast
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C)
They possess archegonia
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D)
All of the above
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question_answer 113) The kidney-shaped covering of sorus Dryopteris, is called
A)
placenta
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B)
ramentum
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C)
sporophyll
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D)
indusium
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question_answer 114) Which of the following is a wheat fruit?
A)
Achene
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B)
Cypsella
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C)
Caryopsis
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D)
Endosperm
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question_answer 115) A gymnospermic leaf carries 16 chromosomes. The number of chromosomes in its endosperm is
A)
24
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B)
16
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C)
12
done
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D)
8
done
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question_answer 116) Tyioses thickenings are seen in
A)
collenchyma
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B)
phloem cells
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C)
ray parenchyma only
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D)
ray parenchyma and xylem cells
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question_answer 117) Which of the following plant shows multiple epidermis?
A)
Croton
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B)
Allium
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C)
Nerium
done
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D)
Cucurbita
done
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question_answer 118) Double fertilization occurs among
A)
algae
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B)
bryophytes
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C)
angiosperms
done
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D)
gymnospenr
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question_answer 119) The endosperm in angiosperm develops from
A)
zygote
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B)
secondary nucleus
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C)
chalazal polar nucleus
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D)
micropylar polar nucleus
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question_answer 120) The fertilization in which male gametes are carried through pollen tube is known as
A)
syngamy
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B)
porogamy
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C)
siphonogamy
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D)
chalazogamy
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question_answer 121) Which of the following theory gives the latest explanation for the closure of stomata ?
A)
ABA theory
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B)
Munch theory
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C)
Starch glucose theory
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D)
Active \[{{K}^{+}}\]transport theory
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question_answer 122) Loss of liquid water by guttation occurs through
A)
hydathodes
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B)
stomata
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C)
cuticle
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D)
bark
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question_answer 123) Which of the following is the first compound that accepts carbon dioxide during dark phase of photosynthesis?
A)
NADP
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B)
RuBP
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C)
Ferredoxin
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D)
Cytochrome
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question_answer 124) Oxygen which is liberated during photosynthesis, comes from
A)
\[C{{O}_{2}}\]
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B)
\[{{H}_{2}}O\]
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C)
chlorophyll
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D)
phosphoglyceric acid
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question_answer 125) In \[{{C}_{4}}\] plants, the carbon dioxide fixation occurs in
A)
guard cells
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B)
spongy cells
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C)
palisade cells
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D)
bundle sheath cells
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question_answer 126) Ethyl alcohol is commercially manufactured from
A)
bajra
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B)
grapes
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C)
maize
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D)
sugarcane
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question_answer 127) Last electron acceptor in respiration is
A)
\[{{O}_{2}}\]
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B)
\[{{H}_{2}}\]
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C)
\[C{{O}_{2}}\]
done
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D)
NADH
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question_answer 128) A hormone delaying senescence is
A)
auxin
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B)
cytokinins
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C)
ethylene
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D)
gibberellin
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question_answer 129) Which of the following induces flowering in long day plants ?
A)
Gibberellins
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B)
Cytokinin
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C)
Auxins
done
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D)
Ethylene
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question_answer 130) What name has been assigned to the genus produced by a cross between cabbage and radish?
A)
Secale
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B)
Bursapastoris
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C)
Lysogenicophyll
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D)
Raphanobrassica
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question_answer 131) Genetic counsellors can identify heterozygous individuals by
A)
height of individuals
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B)
colour of individuals
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C)
screening procedures
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D)
All of the above
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question_answer 132) The term heterosis was first coined by
A)
McClintock
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B)
Poweri
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C)
Swaminathan
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D)
None of these
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question_answer 133) Somatic hybridization is a technique of
A)
natural breeding
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B)
natural pollination
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C)
artificial pollination
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D)
somatic cells hybridization
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question_answer 134) which of the following is initiation codon in eukaryotes ?
A)
UAG
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B)
UGA
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C)
UAA
done
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D)
AUG
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question_answer 135) Which of the following species are restricted to an area?
A)
Sibling species
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B)
Endemic species
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C)
Allopatric species
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D)
Sympatric species
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question_answer 136) Biological concept of species is mainly based on
A)
reproductive isolation
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B)
morphological features only
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C)
methods of reproduction only
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D)
morphology and methods of reproduction
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question_answer 137) Which of the following supports a dense population of plankton and littoral vegetation?
A)
Oligotrophic
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B)
Eutrophic
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C)
Lithotrophic
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D)
Agroecotrophic
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question_answer 138) A man-made ecosystem is
A)
less in diversity
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B)
more in diversity
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C)
man does not make ecosystem
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D)
more stable than natural ecosystem
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question_answer 139) Crop rotation is used by farmers to increase
A)
soil fertility
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B)
community area
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C)
organic content of soil
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D)
nitrogenous content in the soil
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question_answer 140) Which of the following organism form the decomposers ?
A)
Pteris
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B)
Bacteria
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C)
Saprophytic fungi
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D)
Both [b] and [c]
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question_answer 141) Fly-ash is a/an
A)
insectivorous plant
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B)
light airborn paniculate matter
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C)
new name of orchid plant
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D)
causal organism of various diseases
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question_answer 142) Some effects of sulphur dioxide and its transformation products on plant include
A)
plasmolysis
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B)
Golgi body destruction
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C)
protein dis-integration
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D)
chlorophyll destruction
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question_answer 143) Which of the following plant is used for the purification of water?
A)
Beggiata
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B)
Chlorella
done
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C)
Spirogyra
done
clear
D)
Eichhornia
done
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question_answer 144) In the treatment of waste water discharge, which treatment stage involves biological treatment?
A)
Primary treatment
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B)
Secondaiy treatment
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C)
Tertiary treatment
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D)
Reverse osmosis stage
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question_answer 145) Which of the following is considered to be the best chemical method of fixing atmospheric nitrogen?
A)
Fisher method
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B)
Decan method
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C)
Haber-Bosch method
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D)
Paranas-Meyerhoff method
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question_answer 146) Desired improved varieties of economically useful crops are raised by
A)
migration
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B)
biofertilizer
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C)
hybridization
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D)
natural selection
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question_answer 147) Indian rose wood tree is a common name of
A)
Acacia
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B)
Shorea
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C)
Dalbergia
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D)
Eucalyptus
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question_answer 148) Emasculation is concerned with
A)
hybridization
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B)
clonal selection
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C)
mass selection
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D)
pure line selection
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question_answer 149) Which of the following insecticide is obtained from the roots of Derris elleptica ?
A)
Cinerin
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B)
Nicotine
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C)
Rotenone
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D)
Pyrethrum
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question_answer 150) In maize, hybrid vigour is exploited by
A)
bombarding the protoplast with DNA
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B)
crossing of two inbreed 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 151) Which of the following is not vestigial in man?
A)
Tail vertebrae
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B)
Nails
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C)
Nictitating membrane
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D)
Vermiform appendix
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question_answer 152) The chemical used in National Malaria Eradication Programme is
A)
2,4-D
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B)
BHC
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C)
DDT
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D)
Pyrethroid
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question_answer 153) A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis ?
A)
Introns
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B)
Exons
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C)
Both [a] and [b]
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D)
None of these
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question_answer 154) The number of hydrogen bonds between adenine and thymine in a DNA molecule is
A)
two
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B)
three
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C)
four
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D)
eight
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question_answer 155) The enzyme, which combines with non-protein part to form a functional enzyme known as
A)
Co-enzyme
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B)
holoenzyme
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C)
apoenzyme
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D)
prosthetic group
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question_answer 156) Which of the following enzyme digest protein in stomach ?
A)
Trypsin
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B)
Pepsin
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C)
Crepsin
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D)
None of these
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question_answer 157) Passive food ingestion in Amoeba is known as
A)
import
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B)
invagination
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C)
circumfluence
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D)
circumvallatic-
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question_answer 158) The slime moulds are characterized by the presence of
A)
elaters
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B)
pseudoelaters
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C)
capillitium
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D)
capitulum
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question_answer 159) Ecdysone is secreted from
A)
Insecta
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B)
Trematoda
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C)
Nematoda
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D)
Polychaeta
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question_answer 160) In the life cycle of mosquito, comma-shaped stage is
A)
larval stage
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B)
pupal stage
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C)
imago stage
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D)
None of these
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question_answer 161) Haemocoel is found in
A)
Hydra and Aurelia
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B)
Taenia and Ascaris
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C)
Cockroach and Pila
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D)
Balanoglossus and Herdmania
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question_answer 162) The group of Anamniota includes
A)
reptiles and birds
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B)
birds and mammals
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C)
fishes and amphibians
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D)
reptiles and mammals
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question_answer 163) The excretory material of bony fish is
A)
urea
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B)
protein
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C)
ammonia
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D)
amino acid
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question_answer 164) Different colour of frog skin are controller by
A)
hormones
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B)
melanocytes
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C)
nervous system
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D)
Both [a] and [c]
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question_answer 165) Blastula of frog has
A)
blastopore
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B)
blastocoel
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C)
archenteron
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D)
gastropore
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question_answer 166) Carotene pigment is found in the cells of
A)
dermis
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B)
epidermis
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C)
adipose cell
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D)
Both [b] and [c]
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question_answer 167) Deboves membrane is a layer of
A)
muscular tissue
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B)
epithelial tissue
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C)
connective tissue
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D)
All of the above
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question_answer 168) Achilles tendon is associated with
A)
gluteus muscle
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B)
hamstring muscle
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C)
quadriceps muscle
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D)
gastrocnemius muscle
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question_answer 169) The leucocytes contain, which of the following in large quantity?
A)
Basophils
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B)
Neutrophils
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C)
Eosinophils
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D)
Monocytes
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question_answer 170) Which part of our body secreted the hormone secretin ?
A)
Ileum
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B)
Stomach
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C)
Duodenum
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D)
Oesophagus
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question_answer 171) During inspiration, the diaphragm
A)
expands
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B)
shows no change
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C)
contracts and flattens
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D)
relaxes to become dome-shaped
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question_answer 172) The oxygen toxicity is related with
A)
blood poisoning
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B)
collapse of alveolar walls
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C)
failure of ventilation of lungs
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D)
Both [a] and [b]
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question_answer 173) Cardiac output is determined by
A)
heart rate
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B)
stroke volume
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C)
blood flow
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D)
Both [a] and [b]
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question_answer 174) The important function of lymph is to
A)
transport oxygen to the brain
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B)
transport carbon dioxide to the lungs
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C)
return RBCs to the lymph nodes
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D)
return interstitial fluid to the blood
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question_answer 175) The lining of intestine and kidneys in humans is
A)
keratinized
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B)
brush border
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C)
ciliated
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D)
None of these
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question_answer 176) The yellow colour of urine is due to the presence of
A)
urea
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B)
uric acid
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C)
urochrome
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D)
bilirubin
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question_answer 177) The Leydig cells secrete
A)
oestrogen
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B)
testosterone
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C)
progesterone
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D)
corticosterone
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question_answer 178) The function of pineal body is to
A)
lighten the skin colours
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B)
control sexual behaviour
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C)
regulates the period of puberty
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D)
All of the above
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question_answer 179) Which of the following nerve is purely motor nerve ?
A)
Vagus
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B)
Facial
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C)
Abducens
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D)
Trigeminal
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question_answer 180) Which of the following part of a neuron is covered by fatty sheath?
A)
Axon
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B)
Cyton
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C)
Dendrite
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D)
Node of Ranvier
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question_answer 181) Synsacrum of fowl is consist of about
A)
29 vertebrae
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B)
3 vertebrae
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C)
16 vertebrae
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D)
single vertebrae
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question_answer 182) In rabbit, head of the epididymis present at the head of the testes, is called
A)
vas deferens
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B)
gubemaculum
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C)
cauda epididymis
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D)
caput epididymis
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question_answer 183) The extra embryonic membranes of mammalian embryo are derived from
A)
trophoblast
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B)
follicle cells
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C)
formative cells
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D)
inner cell mass
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question_answer 184) The eggs of silk moth are
A)
homolecithal
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B)
telolecithal
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C)
mesolecithal
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D)
centrolecithal
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question_answer 185) Which of the following was formed in S. Millers experiment?
A)
Amino acids
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B)
Nucleic acids
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C)
UV radiations
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D)
Microspheres
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question_answer 186) Trilobites were evolved during, which of the following period?
A)
Silurian
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B)
Cambrian
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C)
Ordovician
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D)
Precambrian
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question_answer 187) Which of the following variations are temporary and have nothing to do with the last or next generation?
A)
Hereditary variations
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B)
Discontinuous variations
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C)
Environmental variations
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D)
None of the above
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question_answer 188) The modem man differs from the apes in
A)
protruding eyes
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B)
spare body hair
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C)
wearing of clothes
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D)
arms shorter than legs
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question_answer 189) The highest cranial capacity is/was present in
A)
Java man
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B)
peking man
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C)
handy man
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D)
modem man
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question_answer 190) Wild life is
A)
any living organism in any habitat
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B)
predatory animals in their natural habitat
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C)
any living organisms in its natural habitat
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D)
economically important animals and plants
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question_answer 191) A marriage between normal visioned man and colourblind woman will produce, which of the following type of offsprings ?
A)
Normal sons and carrier daughters
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B)
Colourblind sons and carrier daughters
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C)
Colourblind sons and 50% carrier daughters
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D)
50% colourblind sons and 50% carrier daughters
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question_answer 192) Haemophilia is a
A)
deficiency disorder
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B)
Y-linked disorder
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C)
X-linked disorder
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D)
autosomal sex disorder
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question_answer 193) UV radiation from sun causes, which of the following disorder of eyes ?
A)
Cataract
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B)
Glaucoma
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C)
Dilation pupil
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D)
Some defect of retina
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question_answer 194) The study of relationship between size and shape is called
A)
allopatric
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B)
allelopathy
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C)
allometry
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D)
allogamy
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question_answer 195) Which of the following is the most sparsely populated state of India ?
A)
Manipur
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B)
Rajasthan
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C)
Meghalaya
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D)
Arunachal Pradesh
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question_answer 196) The natural parthenogenesis is found in
A)
sharks
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B)
housefly
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C)
Drosophilia
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D)
honey bee
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question_answer 197) The interferons are
A)
antiviral proteins
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B)
antibiotic proteins
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C)
antigen proteins
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D)
antibacterial partied
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question_answer 198) An organic substance bound to an enzyme and essential for its activity is called
A)
Co-enzyme
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B)
holoenzyme
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C)
apoenzyme
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D)
isoenzyme
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question_answer 199) Who coined the term antibiotics?
A)
Darwin
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B)
Woodruff
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C)
Flemming
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D)
Selman Waksman
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question_answer 200) A complex polysaccharide produced from sucrose by the bacterium Leuconostoc mesenteries is
A)
chitin
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B)
starch
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C)
cellulose
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D)
dextran
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