question_answer 1) A block is resting on a piston which is moving vertically with SHM of period 1 s. At what amplitude of motion will the block and piston separate?
A)
0.2 m
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B)
0.25 m
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C)
0.3 m
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D)
0.35 m
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question_answer 2) Two simple harmonic motions are given by \[y=A\sin \left( \omega t+\delta \right)\]and \[y=A\sin \left( \omega t+\delta +\frac{\pi }{2} \right)\] act on a panicle simultaneously, then the motion of particle will be
A)
circular anti-clockwise
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B)
elliptical anti-clockwise
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C)
elliptical clockwise
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D)
circular clockwise
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question_answer 3) Two sources are at a finite distance apart. They emit sound of wavelength\[\lambda \]. An observer situated between them on line joining the sources, approaches towards one source with speed u, then the number of beats heard per second by observer will be
A)
\[\frac{2u}{\lambda }\]
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B)
\[\frac{u}{\lambda }\]
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C)
\[\frac{u}{2\lambda }\]
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D)
\[\frac{\lambda }{u}\]
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question_answer 4) A man goes at the top of a smooth inclined plane. He releases a bag to fall freely and himself slides down on inclined plane to reach the bottom. If u1, and u2 are the velocities of the man and bag respectively, then
A)
\[{{u}_{1}}>{{u}_{2}}\]
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B)
\[{{u}_{1}}<{{u}_{2}}\]
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C)
\[{{u}_{1}}={{u}_{2}}\]
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D)
\[{{u}_{1}}\,and\,{{u}_{2}}\,cannot\,be\,compared\]
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question_answer 5) Two planets A and B have the same material density. If the radius of A is twice that of B, then the ratio of escape velocity \[\frac{{{V}_{A}}}{{{V}_{B}}}\]is
A)
2
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B)
\[\sqrt{2}\]
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C)
\[\frac{1}{\sqrt{2}}\]
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D)
\[\frac{1}{2}\]
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question_answer 6)
The given figure gives electric lines of force due to two charges \[{{q}_{1}}\] and \[{{q}_{2}}\]. What are the signs of the two charges?
A)
Both are negative
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B)
Both are positive
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C)
\[{{q}_{1}}\] is positive but \[{{q}_{2}}\] is negative
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D)
\[{{q}_{1}}\]is negative but \[{{q}_{2}}\] is positive
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question_answer 7) Three point charges q, - 2 q and -2 q are placed at the vertices of an equilateral triangle of side a. The work done by some external force to increase their separation to 2a will be
A)
negative
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B)
\[\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{2{{q}^{2}}}{a}\]
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C)
\[\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{3{{q}^{2}}}{a}\]
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D)
zero
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question_answer 8) A radioactive element x converts into another stable element y. Half-life of x is 2 h, initially only x is present. After time r, the ratio of atoms of x and y is found to be 1 : 4, then t in hour is
A)
2
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B)
4
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C)
between 4 and 6
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D)
6
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question_answer 9) The shortest wavelength of the Bracken series of hydrogen like atom (atomic number = Z) is the same as the shortest wavelength of the Balmer series of hydrogen atom. The value of Z is
A)
3
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B)
4
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C)
5
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D)
2
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question_answer 10) Radius of gyration of disc of mass 50 g and radius 2.5 cm about an axis passing through its centre of gravity and perpendicular to the plane is
A)
6.54 cm
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B)
3.64 cm
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C)
1.77 cm
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D)
0.88 cm
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question_answer 11) Ray optics is valid, when characteristic dimensions are
A)
of the same order as the wavelength of light
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B)
much smaller than the wavelength of light
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C)
of the order of one millimeter
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D)
much larger than the wavelength of light
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question_answer 12) A beam of electrons is moving with constant velocity in a region having electric and magnetic fields of strength \[20V{{m}^{-1}}\]and 0.5 T at right angles to the direction of motion of the electrons. What is the velocity of the electrons?
A)
20 \[m{{s}^{-1}}\]
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B)
40 \[m{{s}^{-1}}\]
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C)
8 \[m{{s}^{-1}}\]
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D)
5.5 \[m{{s}^{-1}}\]
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question_answer 13) Gases begin to conduct electricity at low pressure because
A)
at low pressure, gases turn into plasma
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B)
colliding electrons can acquire higher kinetic energy due to increased mean free path leading to ionisation of atoms
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C)
atom breaks up into electrons and protons
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D)
the electrons in atoms can move freely at low pressure
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question_answer 14) A light of wavelength 5890\[\overset{\text{o}}{\mathop{\text{A}}}\,\]falls normally on a thin air film. The minimum thickness of the film such that the film appears dark in reflected light is
A)
\[2.945\times {{10}^{-7}}m\]
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B)
\[3.945\times {{10}^{-7}}m\]
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C)
\[4.95\times {{10}^{-7}}m\]
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D)
\[1.945\times {{10}^{-7}}m\]
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question_answer 15) For a black body at temperature \[727{}^\circ C\] its radiating power is 60 W and temperature of surrounding is\[227{}^\circ C\]. If the temperature of the black body is changed to \[1227{}^\circ C,\]then its radiating power will be
A)
120 W
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B)
240 W
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C)
304 W
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D)
320 W
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question_answer 16) An object is moving through the liquid. Tit viscous damping force acting on it a proportional to the velocity. Then dimensional formula of constant of proportionality is
A)
\[\left[ M{{L}^{-1}}{{T}^{-1}} \right]\]
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B)
\[\left[ ML{{T}^{-1}} \right]\]
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C)
\[\left[ {{M}^{0}}L{{T}^{-1}} \right]\]
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D)
\[\left[ M{{L}^{0}}{{T}^{-1}} \right]\]
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question_answer 17) A car moves on a circular road. It describes equal angles about the centre in equal intervals of time. Which of the following statements about the velocity of the earn true?
A)
Magnitude of velocity is not constant
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B)
Both magnitude and direction of below change
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C)
Velocity is directed towards the centered the circle
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D)
Magnitude of velocity is constant but direction changes
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question_answer 18)
A stone is attached to one end of a string and rotated in a vertical circle. If string breaks at the position of maximum tension, it will break at
A)
A
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B)
B
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C)
C
done
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D)
D
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question_answer 19) A sealed container with negligible coefficient of volumetric expansion contains helium (a monoatomic gas). When it is heated fm 300 K to 600 K, the average KE of helm atoms is
A)
halved
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B)
unchanged
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C)
doubled
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D)
increased by factor \[\sqrt{2}\]
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question_answer 20) A convex lens of focal length 20 cm placed in contact with a plane mirror acts as a
A)
convex mirror of focal length 10 cm
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B)
concave mirror of focal length 40 cm
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C)
concave mirror of focal length 60 cm
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D)
concave mirror of focal length 10 cm
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question_answer 21) A child is swinging a swing. Minimum and maximum heights of swing from earths surface are 0.75 m and 2 m respectively. The maximum velocity of this swing is
A)
5\[m{{s}^{-1}}\]
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B)
10\[m{{s}^{-1}}\]
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C)
15\[m{{s}^{-1}}\]
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D)
17\[m{{s}^{-1}}\]
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question_answer 22) At ordinary temperature, the molecules of an ideal gas have only translational and rotational kinetic energies. At high tempera-tures they may also have vibrational energy. As a result of this at higher temperatures (\[{{C}_{V}}\]= molar heat capacity at constant volume)
A)
\[{{C}_{V}}=\frac{3}{2}R\] for a monoatomic gas
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B)
\[{{C}_{V}}>\frac{3}{2}R\]for a monoatomic gas
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C)
\[{{C}_{V}}<\frac{5}{2}R\]for a diatomic gas
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D)
\[{{C}_{V}}=\frac{5}{2}R\]for a diatomic gas
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question_answer 23) Work done per mol in an isothermal change is
A)
\[RT{{\log }_{10}}\frac{{{V}_{2}}}{{{V}_{1}}}\]
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B)
\[RT{{\log }_{10}}\frac{{{V}_{1}}}{{{V}_{2}}}\]
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C)
\[RT{{\log }_{e}}\frac{{{V}_{2}}}{{{V}_{1}}}\]
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D)
\[RT{{\log }_{e}}\frac{{{V}_{1}}}{{{V}_{2}}}\]
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question_answer 24) For a given plate-voltage, the plate current in a triode is maximum when the potential of
A)
the grid is positive and plate is negative
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B)
the grid is positive and plate is positive
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C)
the grid is zero and plate is positive
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D)
the grid is negative and plate is positive
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question_answer 25) A wire is wound in the form of a solenoid of length l and distance d. When a strong current is passed through a solenoid, there is a tendency to
A)
increase \[l\] but decrease d
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B)
keep both \[l\] and d constant
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C)
decrease \[l\] but increase d
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D)
increase both \[l\] and d
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question_answer 26) The sheave of a galvanometer of resistance 100\[\Omega \] contains 25 divisions. It gives a deflection of one division on passing a current of \[4\times {{10}^{-4}}\text{A}\]. The resistance in ohm to be added to it, so that it may become a voltmeter of range 2.5 V is
A)
150
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B)
170
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C)
110
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D)
220
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question_answer 27) A train is moving with a constant speed along a circular track. The engine of the train emits a sound of frequency f. The frequency heard by the guard at rear end of the train is
A)
less than f
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B)
equal to f
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C)
is greater than f
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D)
may be greater than, less than or equal to f depending on the factors like speed of train, length of train and radius of circular track
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question_answer 28) If \[{{\lambda }_{1}},{{\lambda }_{2}}\] and \[{{\lambda }_{3}}\]are the wavelengths of the waves giving resonance with the fundamental, first and second overtones respectively of a closed organ pipe. Then the ratio of wavelengths \[{{\lambda }_{1}}:{{\lambda }_{2}}:{{\lambda }_{3}}\]is
A)
\[1:3:5\]
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B)
\[1:2:3\]
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C)
\[5:3:1\]
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D)
\[1:\frac{1}{3}:\frac{1}{5}\]
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question_answer 29) By what percent the energy of a satellite has to be increased to shift it from an orbit of radius r to 3/2 r?
A)
15%
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B)
20.3%
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C)
66.7%
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D)
33.33%
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question_answer 30) The slope of plate characteristic of a vacuum diode is\[2\times {{10}^{-2}}mA{{V}^{-1}}\]. The plate resistance of diode will be
A)
\[50\Omega \]
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B)
\[50k\Omega \]
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C)
\[500\Omega \]
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D)
\[500k\Omega \]
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question_answer 31) A stone is thrown vertically upwards. When stone is at a height half of its maximum height, its speed is 10 \[m{{s}^{-1}},\] then the maximum height attained by the stone is (g = 10 \[m{{s}^{-2}}\])
A)
5 m
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B)
150 m
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C)
20 m
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D)
10 m
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question_answer 32)
Figures (1) and (2) show the displacement-time graphs of two particles moving along the x-axis. We can say that
A)
both the panicles are having a uniform accelerated motion
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B)
both the particles are having a uniform retarted motion
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C)
particle (1) is having uniform accelerated motion while particle (2) is having a uniform retarted motion
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D)
particle (1) is having a uniformly retarted motion while particle (2) is having a uniformly accelerated motion
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question_answer 33) A particle of mass m is executing uniform circular motion on a path of radius r. If p is the magnitude of its linear momentum. The radial force acting on the particle is
A)
pmr
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B)
\[\frac{rm}{p}\]
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C)
\[\frac{m{{p}^{2}}}{r}\]
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D)
\[\frac{{{p}^{2}}}{rm}\]
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question_answer 34) Water rises to a height h in a capillary tube lowered vertically into a water to a depth l. The lower end of the tube is closed inside the water and the tube is taken out of water and opened. If I < h, then the length of water column remaining in the tube is
A)
zero
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B)
\[l+h\]
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C)
\[2\,h\]
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D)
\[h\]
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question_answer 35)
In the circuit, the potential difference across PQ will be nearest to
A)
9.6 V
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B)
6.6 V
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C)
4.8 V
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D)
3.2 V
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question_answer 36) A ball hits a vertical wall horizontally at 10 \[m{{s}^{-1}}\] and bounces back at 10 \[m{{s}^{-1}}\], then
A)
there is no acceleration because 10ms-1
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B)
there may be an acceleration because its initial direction is horizontal
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C)
there is an acceleration because there is a momentum change
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D)
even though there is no change in momentum there is a change in direction. Hence it has an acceleration
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question_answer 37) Sodium and copper have work functions 2.3 eV and 4.5 eV respectively. Then the ratio of their threshold wavelengths is nearest to
A)
1 : 2
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B)
2 : 1
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C)
1 : 4
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D)
4 : 1
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question_answer 38) Water flows along a horizontal pipe whose cross-section is not constant. The pressure is 1 cm of Hg where the velocity is \[35\text{ }cm{{s}^{-1}}\]a point where the velocity is 65 cms-1, the pressure will be
A)
0.89 cm of Hg
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B)
8.9 cm of Hg
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C)
0.5 cm of Hg
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D)
1 cm of Hg
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question_answer 39) In an inductor of self-inductance L = 2 mH, current changes with time according to relation\[I={{t}^{2}}{{e}^{-t}}\]. At what time emf is zero?
A)
3 s
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B)
4 s
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C)
1 s
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D)
2 s
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question_answer 40) A capacitor of 10 \[\mu \]F is charged to a potential 50 V with a battery. The battery is n disconnected and an additional day 200\[\mu \]C is given to the positive plate of 1 capacitor. The potential difference across the capacitor will be
A)
100 V
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B)
60 V
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C)
80 V
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D)
50 V
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question_answer 41) sA lump of clay of mass 10 g travelling with a velocity of 10\[cm{{s}^{-1}}\]towards east collides head on with another lump of clay of mass 10 g travelling with velocity of 20\[cm{{s}^{-1}}\] towards west. If the two lumps coalesce collision, what is its velocity, if no external force acts on the system?
A)
15 \[cm{{s}^{-1}}\] towards west
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B)
15 \[cm{{s}^{-1}}\] towards east
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C)
5 \[cm{{s}^{-1}}\] towards west
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D)
5 \[cm{{s}^{-1}}\] towards east
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question_answer 42) A particle is fired with a speed of \[2\text{ }km{{h}^{-1}}.\] The speed with which it will move in tersteller space is \[({{V}_{e}}=8\sqrt{2}\,km{{h}^{-1}})\]
A)
16.5 \[km{{h}^{-1}}\]
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B)
11.2 \[km{{h}^{-1}}\]
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C)
10 \[km{{h}^{-1}}\]
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D)
8.8 \[km{{h}^{-1}}\]
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question_answer 43) A car of mass 1500 kg is moving with a speed of 12.5 \[m{{s}^{-1}}\]on a circular path of radius 20 m on a level road. The value of coefficient friction between the tyres and road, so that the car does not slip, is
A)
0.8
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B)
0.6
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C)
0.4
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D)
0.2
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question_answer 44) If \[{{\overrightarrow{a}}_{1}}\] and \[{{\overrightarrow{a}}_{2}}\]are two non-collinear unit vectors and if \[\left| {{\overrightarrow{a}}_{1}}-{{\overrightarrow{a}}_{2}} \right|=\sqrt{3},\]then the value of is \[\left( {{\overrightarrow{a}}_{1}}-{{\overrightarrow{a}}_{2}} \right).\]\[\left( 2{{\overrightarrow{a}}_{1}}+{{\overrightarrow{a}}_{2}} \right)\] is
A)
2
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B)
3/2
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C)
1/2
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D)
1
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question_answer 45) The energy of photon of light is 3 eV. Then the wavelength of photon must be
A)
4125 nm
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B)
412.5 nm
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C)
41.250 nm
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D)
4 nm
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question_answer 46) The half-life of radioactive material is 3 h. If the initial amount is 300 g. Then after 18 h, it will remain
A)
4.69 g
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B)
46.8 g
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C)
9.375 g
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D)
93.75 g
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question_answer 47) The wavelength of \[{{K}_{a}}\]X-rays for lead isotopes \[P{{b}^{208}},\text{ }P{{b}^{206}}\] and \[P{{b}^{204}}\] are \[{{\lambda }_{1}},{{\lambda }_{2}}\] and \[{{\lambda }_{3}}\]respectively. Then
A)
\[{{\lambda }_{1}}={{\lambda }_{2}}={{\lambda }_{3}}\]
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B)
\[{{\lambda }_{1}}>{{\lambda }_{2}}>{{\lambda }_{3}}\]
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C)
\[{{\lambda }_{1}}<{{\lambda }_{2}}<{{\lambda }_{3}}\]
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D)
\[{{\lambda }_{1}}={{\lambda }_{2}}>{{\lambda }_{3}}\]
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question_answer 48) A wire 50 cm long and 1 \[\text{m}{{\text{m}}^{\text{2}}}\]in cross-section carries a current of 4 A when connected to a 2 V battery. The resistivity of the wire is
A)
\[2\times {{10}^{-7}}\Omega \,\,m\]
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B)
\[5\times {{10}^{-7}}\Omega \,\,m\]
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C)
\[4\times {{10}^{-6}}\Omega \,\,m\]
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D)
\[1\times {{10}^{-7}}\Omega \,\,m\]
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question_answer 49) A magnet 10 cm long and having a pole strength 2 Am is deflected through \[30{}^\circ \]from the magnetic meridian. The horizontal component of earths induction is \[0.32\times {{10}^{-4}}T,\] then the value of deflecting couple is
A)
\[16\times {{10}^{-7}}Nm\]
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B)
\[64\times {{10}^{-7}}Nm\]
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C)
\[48\times {{10}^{-7}}Nm\]
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D)
\[32\times {{10}^{-7}}Nm\]
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question_answer 50) A closely wound flat circular coil of 25 turns of wire has diameter of 10 cm which carries current of 4 A, the flux density at the centre of a coil will be
A)
\[2.28\times {{10}^{-6}}T\]
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B)
\[1.679\times {{10}^{-6}}T\]
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C)
\[1.256\times {{10}^{-3}}T\]
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D)
\[1.572\times {{10}^{-5}}T\]
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question_answer 51) A particle of mass 100 g is thrown vertically upwards with a speed of 5\[m{{s}^{-1}}\]. The work done by the force of gravity during the time the particle goes up is
A)
\[-\,0.5\text{ }J\]
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B)
\[-1.25\text{ }J\]
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C)
\[1.25\text{ }J\]
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D)
\[0.5\text{ }J\]
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question_answer 52) A mass of M kg is suspended by a weightless string. The horizontal force that is required to displace it until the string makes an angle of \[45{}^\circ \] with the initial vertical direction is
A)
\[Mg\left( \sqrt{2}+1 \right)\]
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B)
\[Mg\sqrt{2}\]
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C)
\[\frac{Mg}{\sqrt{2}}\]
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D)
\[Mg\left( \sqrt{2}-1 \right)\]
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question_answer 53)
A force of \[-F\]\[\widehat{k}\]acts on O, the origin of the coordinate system. The torque about the point (1,-1) is
A)
\[F\left( \widehat{i}-\widehat{j} \right)\]
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B)
\[-F\left( \widehat{i}+\widehat{j} \right)\]
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C)
\[F\left( \widehat{i}+\widehat{j} \right)\]
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D)
\[-F\left( \widehat{i}-\widehat{j} \right)\]
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question_answer 54) If \[{{M}_{O}}\] is the mass of an oxygen isotope \[_{8}{{O}^{17}},\] \[{{M}_{p}}\]and \[{{M}_{n}}\]are the masses of a proton and a neutron, respectively, the nuclear binding energy of the isotope is
A)
\[\left( {{M}_{O}}-8{{M}_{p}} \right){{c}^{2}}\]
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B)
\[\left( {{M}_{O}}-8{{M}_{p}}-9{{M}_{n}} \right){{c}^{2}}\]
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C)
\[{{M}_{O}}{{c}^{2}}\]
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D)
\[\left( {{M}_{O}}-17{{M}_{n}} \right){{c}^{2}}\]
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question_answer 55) A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of
A)
1000
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B)
10000
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C)
10
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D)
100
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question_answer 56) Which of the following parameters does not characterize the thermodynamic state of matter?
A)
Temperature
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B)
Pressure
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C)
Work
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D)
Volume
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question_answer 57) A charged oil drop is suspended in uniform field of \[3\times {{10}^{4}}V{{m}^{-1}},\]so that it neither falls nor rises. The charge on the drop will be (Take the mass of the charge \[=9.9\times {{10}^{-15}}\]kg and g = 10\[m{{s}^{-2}}\])
A)
\[3.3\times {{10}^{-18}}C\]
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B)
\[3.2\times {{10}^{-18}}C\]
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C)
\[1.6\times {{10}^{-18}}C\]
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D)
\[4.8\times {{10}^{-18}}C\]
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question_answer 58) A vertical spring with force constant k is fixed on a table. A ball of mass m at a height h above the free upper end of the spring falls vertically on the spring, so that the spring is compressed by a distance d. The net work done in the process is
A)
\[mg\left( h+d \right)+\frac{1}{2}k{{d}^{2}}\]
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B)
\[mg\left( h+d \right)-\frac{1}{2}k{{d}^{2}}\]
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C)
\[mg\left( h-d \right)-\frac{1}{2}k{{d}^{2}}\]
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D)
\[mg\left( h-d \right)+\frac{1}{2}k{{d}^{2}}\]
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question_answer 59) Dimensions of resistance in an electrical circuit, in terms of dimension of mass M, of length L, of time T and of current I, would be
A)
\[\left[ M{{L}^{2}}{{T}^{3}}{{T}^{-1}} \right]\]
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B)
\[\left[ M{{L}^{2}}{{T}^{-2}} \right]\]
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C)
\[\left[ M{{L}^{2}}{{T}^{-1}}{{I}^{-1}} \right]\]
done
clear
D)
\[\left[ M{{L}^{2}}{{T}^{-3}}{{I}^{-2}} \right]\]
done
clear
View Answer play_arrow
question_answer 60) An alpha nucleus of energy \[\frac{1}{2}m{{v}^{2}}\]bombards a heavy nuclear target of charged Ze. Then the distance of closest approach for the alpha nucleus will be proportional to
A)
\[{{v}^{2}}\]
done
clear
B)
\[1/m\]
done
clear
C)
\[1\text{/}{{v}^{4}}\]
done
clear
D)
\[1/Ze\]
done
clear
View Answer play_arrow
question_answer 61) Benzene reacts with\[C{{H}_{3}}COCl\]in the presence of \[AlC{{l}_{3}}\]and gives
A)
\[{{C}_{6}}{{H}_{5}}COC{{H}_{3}}\]
done
clear
B)
\[{{C}_{6}}{{H}_{5}}C{{H}_{3}}\]
done
clear
C)
\[{{C}_{6}}{{H}_{5}}OC{{H}_{3}}\]
done
clear
D)
\[{{C}_{7}}{{H}_{14}}\]
done
clear
View Answer play_arrow
question_answer 62) Lucas test is given fastly by
A)
butanol-2
done
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B)
butanol-1
done
clear
C)
iso-butanol
done
clear
D)
2-methyl-2-propanol
done
clear
View Answer play_arrow
question_answer 63) \[N{{H}_{3}}\] gas is passed over heated copper oxide. It oxidises to
A)
\[{{N}_{2}}\]
done
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B)
\[N{{O}_{2}}\]
done
clear
C)
\[NO\]
done
clear
D)
\[HN{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 64) Which of the following compounds shows optical isomerism?
A)
\[C{{H}_{3}}-CH-BrCOOH\]
done
clear
B)
\[C{{H}_{2}}OHC{{H}_{2}}-COOH\]
done
clear
C)
\[COOHCHBr-COOH\]
done
clear
D)
\[C{{H}_{2}}Br-C{{H}_{2}}-COOH\]
done
clear
View Answer play_arrow
question_answer 65) \[C{{H}_{2}}=C{{H}_{2}}\xrightarrow{HBr}X\xrightarrow{Aq.\,KOH}Y\xrightarrow[{{I}_{2}}]{N{{a}_{2}}C{{O}_{3}}}Z\] In the above reaction sequence, Z is
A)
\[{{C}_{2}}{{H}_{5}}OH\]
done
clear
B)
\[{{C}_{2}}{{H}_{5}}I\]
done
clear
C)
\[C{{H}_{3}}CHO\]
done
clear
D)
\[CH{{I}_{3}}\]
done
clear
View Answer play_arrow
question_answer 66) \[{{C}_{6}}{{H}_{5}}Cl+C{{H}_{3}}Cl\xrightarrow{Na/dry\,ether}{{C}_{6}}{{H}_{5}}C{{H}_{3}}+2NaCl\] This reaction is an example of
A)
Wurtz reaction
done
clear
B)
Fittig reaction
done
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C)
Wurtz-Fittig reaction
done
clear
D)
Frankland reaction
done
clear
View Answer play_arrow
question_answer 67) The main difference between formic acid and acetic acid is that formic acid is
A)
less acidic
done
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B)
dehydrating agent
done
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C)
reducing agent
done
clear
D)
bleaching agent
done
clear
View Answer play_arrow
question_answer 68) Hinsberg reagent, \[{{C}_{6}}{{H}_{5}}S{{O}_{2}}Cl\]does not react with
A)
\[1{}^\circ \]amine
done
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B)
\[2{}^\circ \]amine
done
clear
C)
\[3{}^\circ \]amine
done
clear
D)
\[N{{H}_{3}}\]
done
clear
View Answer play_arrow
question_answer 69) Ordinary glass is formed by mixing of
A)
\[N{{a}_{2}}C{{O}_{3}}+CaC{{O}_{3}}\]
done
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B)
\[N{{a}_{2}}C{{O}_{3}}+CaC{{O}_{3}}\]+silica
done
clear
C)
silica + \[N{{a}_{2}}C{{O}_{3}}\]
done
clear
D)
silica + borax
done
clear
View Answer play_arrow
question_answer 70) Correct order of freezing point of 1 M solution of sucrose, \[KCl,\]\[BaC{{l}_{2}}\] and \[AlC{{l}_{3}}\]is
A)
Sucrose \[>KCl>BaC{{l}_{2}}>AlC{{l}_{3}}\]
done
clear
B)
\[AlC{{l}_{3}}>BaC{{l}_{2}}>KCl>\] Sucrose
done
clear
C)
\[BaC{{l}_{2}}>KCl>AlC{{l}_{3}}>\] Sucrose
done
clear
D)
\[KCl>BaC{{l}_{2}}>AlC{{l}_{3}}>\]Sucrose
done
clear
View Answer play_arrow
question_answer 71) Table sugar is
A)
sucrose
done
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B)
glucose
done
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C)
fructose
done
clear
D)
maltose
done
clear
View Answer play_arrow
question_answer 72) If \[\frac{3}{4}\] quantity of a radioactive substance disintegrates in 60 min, its half-life period will be
A)
15 min
done
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B)
half an hour
done
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C)
one hour
done
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D)
one day
done
clear
View Answer play_arrow
question_answer 73) Element with atomic number 81, is present in which block?
A)
s-block
done
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B)
p-block
done
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C)
d-block
done
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D)
f-block
done
clear
View Answer play_arrow
question_answer 74) Correct order of basic strength is
A)
\[Mg{{(OH)}_{2}}>NaOH>Al{{(OH)}_{3}}\]
done
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B)
\[Mg{{(OH)}_{2}}>Al{{(OH)}_{3}}>NaOH\]
done
clear
C)
\[NaOH>Mg{{(OH)}_{2}}>Al{{(OH)}_{3}}\]
done
clear
D)
\[Al{{(OH)}_{3}}>Mg{{(OH)}_{2}}>NaOH\]
done
clear
View Answer play_arrow
question_answer 75) Which of the following will give carbylamines test?
A)
N, N-dimethyl aniline
done
clear
B)
2, 4-dimethyl aniline
done
clear
C)
N-methyl-2-methylaniline
done
clear
D)
N-methyl benzylamine
done
clear
View Answer play_arrow
question_answer 76) Consider following reactions \[I:C(s)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}CO(g);\,\,\Delta {{H}_{1}}=a\] \[CO(g)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}C{{O}_{2}}(g);\,\,\Delta {{H}_{2}}=b\] \[C(s)+C{{O}_{2}}(g)\xrightarrow{{}}2C{{O}_{2}}(g);\,\,\Delta {{H}_{3}}=c\]Select correct statement
A)
Heat of formation of \[C{{O}_{2}}\]is (a + b)
done
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B)
Heat of combustion of\[C\]is (a + b)
done
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C)
\[\Delta {{H}_{3}}=\Delta {{H}_{1}}-\Delta {{H}_{2}}\]
done
clear
D)
All the above are correct statements
done
clear
View Answer play_arrow
question_answer 77) Following reaction is catalysed by \[B{{r}^{-}}\](aq). \[2{{H}_{2}}{{O}_{2}}(aq)\xrightarrow{{}}2{{H}_{2}}O(l)+{{O}_{2}}(g)\] This is an example of
A)
homogeneous catalysis
done
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B)
heterogeneous catalysis
done
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C)
autocatalysis
done
clear
D)
enzyme catalysis
done
clear
View Answer play_arrow
question_answer 78) Ethylidene dibromide \[\xrightarrow{A}CH\equiv CH\]A is
A)
aq. KOH
done
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B)
ale. KOH
done
clear
C)
cone. \[{{H}_{2}}S{{O}_{4}}\]
done
clear
D)
All of these
done
clear
View Answer play_arrow
question_answer 79) \[{{I}_{2}}+2{{S}_{2}}O_{3}^{2-}\xrightarrow{{}}{{S}_{4}}O_{6}^{2-}+2{{I}^{-}}\] In the above reaction
A)
iodine is reduced; sulphur is reduced
done
clear
B)
iodine is reduced; sulphur is oxidized
done
clear
C)
iodine is oxidised; sulphur is reduced
done
clear
D)
iodine is oxidised; sulphur is oxidized
done
clear
View Answer play_arrow
question_answer 80) Which is the strongest acid?
A)
\[{{C}_{2}}{{H}_{6}}\]
done
clear
B)
\[{{C}_{6}}{{H}_{6}}\]
done
clear
C)
\[CH\equiv CH\]
done
clear
D)
\[C{{H}_{3}}OH\]
done
clear
View Answer play_arrow
question_answer 81) Number of spectral lines of Lyman series of electron when it jumps from 6 to first level (in Lyman series), is
A)
9
done
clear
B)
12
done
clear
C)
15
done
clear
D)
18
done
clear
View Answer play_arrow
question_answer 82) Which of the following compounds does liberate \[C{{O}_{2}}\] from\[NaHC{{O}_{3}}\]?
A)
\[C{{H}_{3}}OH\]
done
clear
B)
\[C{{H}_{3}}N{{H}_{2}}\]
done
clear
C)
\[{{(C{{H}_{3}})}_{4}}{{N}^{+}}O{{H}^{-}}\]
done
clear
D)
\[C{{H}_{3}}\overset{+}{\mathop{N}}\,{{H}_{3}}C{{l}^{-}}\]
done
clear
View Answer play_arrow
question_answer 83) \[\begin{align} & {{H}_{3}}C-CH=C-C{{H}_{2}}-C{{H}_{3}} \\ & \underset{C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}}{\mathop{|}}\, \\ \end{align}\]Correct IUPAC name is
A)
3-ethylhex-2-ene
done
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B)
3-ethylpent-2-ene
done
clear
C)
3-ethylpent-3-ene
done
clear
D)
3-propylpent-2-ene
done
clear
View Answer play_arrow
question_answer 84) In an organic compound, C = 68.5% and H = 4.91% . Which empirical formula is correct for it?
A)
\[{{C}_{6}}{{H}_{10}}\]
done
clear
B)
\[{{C}_{7}}{{H}_{6}}{{O}_{2}}\]
done
clear
C)
\[{{C}_{5}}{{H}_{8}}O\]
done
clear
D)
\[{{C}_{9}}{{H}_{3}}O\]
done
clear
View Answer play_arrow
question_answer 85) \[E{}^\circ \]for \[M{{g}^{2+}}\text{/}Mg=-\,2.37V,\]\[Z{{n}^{+2}}/Zn\]\[=-\,0.76\,V\] and \[F{{e}^{2+}}/Fe=-\,0.44\,V.\]Which statement is correct?
A)
Zn reduces \[F{{e}^{2+}}\]
done
clear
B)
Zn reduces \[M{{g}^{2+}}\]
done
clear
C)
Mg oxidises \[Fe\]
done
clear
D)
Zn oxidises\[Fe\]
done
clear
View Answer play_arrow
question_answer 86) Enolic form of acetone has
A)
\[8\sigma ,\]\[1\,\pi \]; 2 lone pairs
done
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B)
\[9\sigma ,\]\[2\,\pi \]; lone pair
done
clear
C)
\[8\sigma ,\]\[2\,\pi \]; lone pair
done
clear
D)
\[9\sigma ,\]\[1\,\pi \]; 2 lone pairs
done
clear
View Answer play_arrow
question_answer 87) 0.126 g of an acid is titrated with 0.1 N 20 mL of an base. The equivalent weight of the acid is
A)
63
done
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B)
50
done
clear
C)
53
done
clear
D)
23
done
clear
View Answer play_arrow
question_answer 88) Darking of surfaces painted with white lead is due to
A)
\[{{H}_{2}}S\]
done
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B)
\[C{{O}_{2}}\]
done
clear
C)
\[Cu\]
done
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D)
\[{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 89) Which of the following will give \[{{H}_{2}}\] gas with dilute\[HN{{O}_{3}}\]?
A)
Mg
done
clear
B)
Zn
done
clear
C)
Cu
done
clear
D)
Hg
done
clear
View Answer play_arrow
question_answer 90) When alkyl aryl ether is heated with HI, it gives
A)
alcohol and phenol
done
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B)
alcohol and aryl halide
done
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C)
phenol and alkyl halide
done
clear
D)
alkyl halide and aryl halide
done
clear
View Answer play_arrow
question_answer 91) Which of the following is the purest commercial form of iron?
A)
Cast iron
done
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B)
Steel
done
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C)
Wrought iron
done
clear
D)
Pig iron
done
clear
View Answer play_arrow
question_answer 92) What is the oxidation number of Fe in\[Fe{{(CO)}_{5}}\]?
A)
+ 3
done
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B)
zero
done
clear
C)
+ 2
done
clear
D)
+ 5
done
clear
View Answer play_arrow
question_answer 93) Fog is a colloidal solution of
A)
gaseous particles dispersed in liquid
done
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B)
liquid dispersed in gas
done
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C)
gaseous particles dispersed in gas
done
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D)
solid dispersed in gas
done
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View Answer play_arrow
question_answer 94) A petrol pump hose pipe for delivery of petrol is made up of
A)
natural rubber
done
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B)
vulcanised rubber
done
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C)
neoprene
done
clear
D)
butadiene rubber
done
clear
View Answer play_arrow
question_answer 95) German silver is an alloy of
A)
Cu and Zn
done
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B)
Cu and Ag
done
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C)
Cu and Sn
done
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D)
Cu, Zn and Ni
done
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View Answer play_arrow
question_answer 96) On increasing pressure, melting point of ice
A)
decreases
done
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B)
increases
done
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C)
remains unchanged
done
clear
D)
changes in regular manner
done
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View Answer play_arrow
question_answer 97) Identify Z in the following sequence of reactions. \[C{{H}_{3}}COOH\xrightarrow{N{{H}_{3}}}X\xrightarrow{\Delta }Y\xrightarrow{{{P}_{2}}{{O}_{5}}}Z\]
A)
\[C{{H}_{4}}\]
done
clear
B)
\[C{{H}_{3}}CHO\]
done
clear
C)
\[C{{H}_{3}}CN\]
done
clear
D)
\[C{{H}_{3}}CO{{O}^{-}}NH_{4}^{+}\]
done
clear
View Answer play_arrow
question_answer 98) Which of the following is the most stable carbocation?
A)
\[{{C}_{6}}{{H}_{5}}CH_{2}^{+}\]
done
clear
B)
\[C{{H}_{3}}CH_{2}^{+}\]
done
clear
C)
\[{{(C{{H}_{3}})}_{2}}\overset{+}{\mathop{C}}\,H\]
done
clear
D)
\[{{(C{{H}_{3}})}_{3}}{{C}^{+}}\]
done
clear
View Answer play_arrow
question_answer 99) Dehydration of methyl alcohol with concentrated \[{{H}_{2}}S{{O}_{4}}\]yields
A)
methane
done
clear
B)
ethane
done
clear
C)
dimethyl ether
done
clear
D)
acetone
done
clear
View Answer play_arrow
question_answer 100) 60 ml of \[\frac{N}{5}{{H}_{2}}S{{O}_{4}},\]10 mL of \[\frac{N}{5}HN{{O}_{3}}\] and 30 mL of\[\frac{N}{10}HCl\]are mixed together. The strength of the resulting mixture is
A)
0.1 N
done
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B)
0.2 N
done
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C)
0.3 N
done
clear
D)
0.4 N
done
clear
View Answer play_arrow
question_answer 101) A gas can be liquefied
A)
at its critical temperature
done
clear
B)
above its critical temperature
done
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C)
below its critical temperature
done
clear
D)
at 0°C
done
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View Answer play_arrow
question_answer 102) The compound that is considered as a true peroxide, is
A)
\[Pb{{O}_{2}}\]
done
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B)
\[Ba{{O}_{2}}\]
done
clear
C)
\[Mn{{O}_{2}}\]
done
clear
D)
\[N{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 103) Which of the following oxides of nitrogen does react with \[FeS{{O}_{4}}\] to form a brown compound in the test of nitrate?
A)
\[{{N}_{2}}O\]
done
clear
B)
\[NO\]
done
clear
C)
\[N{{O}_{2}}\]
done
clear
D)
\[{{N}_{2}}{{O}_{5}}\]
done
clear
View Answer play_arrow
question_answer 104) For the equilibrium,\[2N{{O}_{2}}(g)\rightleftharpoons {{N}_{2}}{{O}_{4}}(g)+14.6\,\,\text{kcal,}\]increase in temperature
A)
favours the formation of\[{{N}_{2}}{{O}_{4}}\]
done
clear
B)
favours the decomposition of\[{{N}_{2}}{{O}_{4}}\]
done
clear
C)
does not affect equilibrium
done
clear
D)
stop the reaction
done
clear
View Answer play_arrow
question_answer 105) A certain mass of the oxygen gas occupies 7 L volume under a pressure of 380 mm Hg. The volume of the same mass of the gas at standard pressure, with temperature remaining constant, shall be
A)
26.60 L
done
clear
B)
54.28 L
done
clear
C)
3.5 L
done
clear
D)
7 L
done
clear
View Answer play_arrow
question_answer 106) Peroxide bond is absent in
A)
\[{{({{S}_{2}}{{O}_{7}})}^{2-}}\]
done
clear
B)
\[{{({{S}_{2}}{{O}_{8}})}^{2-}}\]
done
clear
C)
\[Cr{{O}_{5}}\]
done
clear
D)
\[Ba{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 107) Two acids A and B have \[p{{K}_{a}}\] 4 and 6, then
A)
A is 4/6 times stronger than B
done
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B)
A is 10 times stronger than B
done
clear
C)
A is 6/4 times stronger than B
done
clear
D)
B is 10 times stronger than A
done
clear
View Answer play_arrow
question_answer 108) Which compound is expected to be coloured?
A)
\[CuCl\]
done
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B)
\[Cu{{F}_{2}}\]
done
clear
C)
\[A{{g}_{2}}S{{O}_{4}}\]
done
clear
D)
\[Mg{{F}_{2}}\]
done
clear
View Answer play_arrow
question_answer 109) Which compound is insoluble in dilute \[HN{{O}_{3}}\] and dissolved in aqua regia?
A)
\[HgS\]
done
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B)
\[CuS\]
done
clear
C)
\[B{{i}_{2}}{{S}_{3}}\]
done
clear
D)
\[PbS\]
done
clear
View Answer play_arrow
question_answer 110) The process of converting hydrated alumina into anhydrous alumina is called
A)
roasting
done
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B)
smelting
done
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C)
dressing
done
clear
D)
calcination
done
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View Answer play_arrow
question_answer 111) Oxidation state of oxygen in \[{{F}_{2}}O\]is
A)
+ 1
done
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B)
- 1
done
clear
C)
+ 2
done
clear
D)
- 2
done
clear
View Answer play_arrow
question_answer 112) In III group precipitation, \[N{{H}_{4}}Cl\]is added before adding \[N{{H}_{4}}OH\]to
A)
decrease cone. of \[O{{H}^{-}}\]
done
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B)
prevent interference of \[PO_{4}^{3-}\]
done
clear
C)
increase cone. of \[C{{l}^{-}}\]
done
clear
D)
increase cone. of \[O{{H}^{-}}\]ion
done
clear
View Answer play_arrow
question_answer 113) Steel is heated to below red heat and then, cooled slowly. The process refers to
A)
hardening
done
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B)
annealing
done
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C)
tempering
done
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D)
nitriding
done
clear
View Answer play_arrow
question_answer 114) Which one of the following reactions, is called Rosenmund reaction?
A)
Aldehydes are reduced to alcohols
done
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B)
Acids are converted to acid chlorides
done
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C)
Alcohols are .reduced to hydrocarbons
done
clear
D)
Acid chlorides are reduced to aldehydes
done
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View Answer play_arrow
question_answer 115) IUPAC name of\[C{{H}_{3}}-C{{H}_{2}}-\underset{C{{H}_{3}}}{\mathop{\underset{\mathbf{|}}{\mathop{\underset{C{{H}_{2}}}{\mathop{\underset{\mathbf{|}}{\mathop{CH}}\,}}\,}}\,}}\,-\underset{C{{H}_{3}}}{\mathop{\underset{\mathbf{|}}{\mathop{C}}\,}}\,=C{{H}_{2}}\]
A)
2-methyl-3-ethyl-1-pentene
done
clear
B)
3-ethyl-4-methyl-4-pentene
done
clear
C)
3-ethyl-2-methyl-1-pentene
done
clear
D)
3-methyl-2-ethyl-1-pentene
done
clear
View Answer play_arrow
question_answer 116) Which of the following dissolves in water but does not give any oxyacid solution?
A)
\[S{{O}_{2}}\]
done
clear
B)
\[O{{F}_{2}}\]
done
clear
C)
\[SC{{l}_{4}}\]
done
clear
D)
\[S{{O}_{3}}\]
done
clear
View Answer play_arrow
question_answer 117) The formula of Calgon, used for water softening is
A)
\[N{{a}_{2}}[N{{a}_{4}}{{(P{{O}_{3}})}_{6}}]\]
done
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B)
\[N{{a}_{4}}[N{{a}_{2}}{{(P{{O}_{3}})}_{6}}]\]
done
clear
C)
\[N{{a}_{2}}[N{{a}_{4}}{{(P{{O}_{4}})}_{5}}]\]
done
clear
D)
\[N{{a}_{4}}[N{{a}_{4}}{{(P{{O}_{4}})}_{6}}]\]
done
clear
View Answer play_arrow
question_answer 118) A mixture of amylose and amylopectin is called
A)
lactose
done
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B)
starch
done
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C)
cellulose
done
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D)
sucrose
done
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View Answer play_arrow
question_answer 119) Methyl alcohol when reacted with carbon monoxide using cobalt or rhodium as catalyst, compound A is formed. On heating A with HI in the presence of red phosphorus as catalyst B is formed. Identify B.
A)
\[C{{H}_{3}}COOH\]
done
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B)
\[C{{H}_{3}}\cdot CHO\]
done
clear
C)
\[C{{H}_{3}}\cdot C{{H}_{2}}\cdot I\]
done
clear
D)
\[C{{H}_{3}}\cdot C{{H}_{3}}\]
done
clear
View Answer play_arrow
question_answer 120) One gas bleaches the colour of flowers by reduction and another gas by oxidation. The gases respectively are
A)
\[S{{O}_{2}}\]and \[C{{l}_{2}}\]
done
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B)
\[CO\]and \[C{{l}_{2}}\]
done
clear
C)
\[N{{H}_{3}}\]and\[S{{O}_{2}}\]
done
clear
D)
\[{{H}_{2}}S\]and \[B{{r}_{2}}\]
done
clear
View Answer play_arrow
question_answer 121) The term totipotency refers to
A)
the capability of organism to regenerate its lost parts
done
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B)
capability of somatic cells to produce complete organism
done
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C)
the introduction of foreign gene in a cells DNA
done
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D)
the technique of growing immature embryos
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View Answer play_arrow
question_answer 122) The deteriorative processes in plants, that naturally terminate their functional life, are collectively called
A)
wilting
done
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B)
abscission
done
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C)
plasmolysis
done
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D)
senescence
done
clear
View Answer play_arrow
question_answer 123) Which pigment involves in photoperiodic change in plants?
A)
Phytochrome
done
clear
B)
Cytochrome
done
clear
C)
Chlorophyll
done
clear
D)
Anthocyanin
done
clear
View Answer play_arrow
question_answer 124) Linnaean system of plant classification is based on
A)
morphological and anatomical characters
done
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B)
evolutionary trends
done
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C)
floral characters
done
clear
D)
None of the above
done
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View Answer play_arrow
question_answer 125) Succession on secondary base area is
A)
primosere
done
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B)
sub sere
done
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C)
xerosere
done
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D)
None of these
done
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View Answer play_arrow
question_answer 126) An unrestricted reproductive capacity is called
A)
birth rate
done
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B)
biotic potential
done
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C)
carrying capacity
done
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D)
fertility
done
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question_answer 127) Alginic acid is found in the cell wall of
A)
Gigartina
done
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B)
Laminaria
done
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C)
Gelidium
done
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D)
Scytonema
done
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question_answer 128) Lady finger (bhindi) belongs to
A)
Malvaceae
done
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B)
Cruciferae
done
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C)
Solanaceae
done
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D)
Liliaceae
done
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View Answer play_arrow
question_answer 129) Ginger multiplies vegetative by
A)
bud
done
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B)
tuber
done
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C)
stem
done
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D)
rhizome
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question_answer 130) In Cycas stem, open vascular bundle is characterized by
A)
phloem being sand witched between xylem
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B)
cambium present in between xylem and phloem
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C)
xylem being sand witched between phloem
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D)
xylem and phloem occurring on different radii
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question_answer 131) From which part of coconut coir is obtained?
A)
Pericarp
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B)
Mesocarp
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C)
Epicarp
done
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D)
Endocarp
done
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question_answer 132) In Funaria, the stomata are found on
A)
foot
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B)
seta
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C)
capsule
done
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D)
All of these
done
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question_answer 133) Tracheophyta consists of
A)
bryophytes only
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B)
pteridophytes only
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C)
gymnosperms and angiosperms
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D)
Both (a) and (c)
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question_answer 134) Green-house effect is mainly caused by
A)
CFCs
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B)
\[C{{H}_{4}}\]
done
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C)
\[C{{O}_{2}}\]
done
clear
D)
CO
done
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question_answer 135) Male gametophyte of angiosperms is reduced to
A)
one cell
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B)
two cells
done
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C)
three cells
done
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D)
four cells
done
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question_answer 136) In\[{{C}_{3}}\]plants, the first stable product of photosynthesis during dark reaction is
A)
PGAL
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B)
RuBP
done
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C)
PGA
done
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D)
OAA
done
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question_answer 137) The first \[C{{O}_{2}}\]acceptor in \[{{C}_{4}}\]cycle is
A)
RuBP
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B)
PEP
done
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C)
PGA
done
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D)
OAA
done
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question_answer 138) The water available to plants for absorption
A)
gravitational water
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B)
hygroscopic water
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C)
capillary water
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D)
chemically bound water
done
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question_answer 139) Cell wall of fungi is made up of
A)
fungal cellulose
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B)
hemicellulose
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C)
fungal chitin
done
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D)
Both (a) and (c)
done
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question_answer 140) During cell cycle, RNA and non- histone proteins are synthesized in
A)
S- phase
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B)
\[{{\text{G}}_{\text{0}}}\text{-}\] phase
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C)
\[{{\text{G}}_{2}}\text{-}\] phase
done
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D)
M- phase
done
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question_answer 141) Bract is a modified
A)
petal
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B)
sepal
done
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C)
leaf
done
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D)
involucres
done
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question_answer 142) Hormone replacing the requirement vernalization is
A)
ethylene
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B)
auxin
done
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C)
gibberellins
done
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D)
cytokinin
done
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question_answer 143) Thigmotropism is best seen in
A)
tendrils
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B)
leaf apex
done
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C)
root apex
done
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D)
stem apex
done
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question_answer 144) Transpiration is measured by
A)
potometrer
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B)
porometrer
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C)
auxanometrer
done
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D)
respirometrer
done
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question_answer 145) The most common type of ovule in angiosperms is
A)
amphitropous
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B)
atropous
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C)
anatropous
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D)
circinotropous
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question_answer 146) When two hybrids rrTt and Rrtt are crossed, the phenotype ratio of offspring would be
A)
3 : 1
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B)
9 : 3 : 3 : 1
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C)
1 : 1
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D)
1 : 1 : 1 : 1
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question_answer 147) One of the most resistant known biological material is
A)
lignin
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B)
hemicellulose
done
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C)
sporopollenin
done
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D)
lignocelluloses
done
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question_answer 148) Energy enters the ecosystem through
A)
herbivore
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B)
carnivore
done
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C)
producer
done
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D)
decomposer
done
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question_answer 149) In soil profile, humus is present in
A)
horizon- O
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B)
horizon- A
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C)
horizon- B
done
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D)
horizon- C
done
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question_answer 150) The smallest angiosperm flower is
A)
Wolffia
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B)
Ranunculus
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C)
Rafflesia
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D)
Stellaria
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question_answer 151) The pyramid of energy is always
A)
opaque
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B)
horizontal
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C)
upright
done
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D)
inverted
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question_answer 152) The transition zone between the two vegetations of ecosystem is called
A)
ecotone
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B)
ecocline
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C)
ecosystem
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D)
ecesis
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question_answer 153) Thermoregulatory centre of human body is associated with
A)
cerebrum
done
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B)
cerebellum
done
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C)
hypothalamus
done
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D)
medulla oblongata
done
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question_answer 154) Body cavity of adult Ascaris is
A)
haemocoel
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B)
amphicoel
done
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C)
pseudocoel
done
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D)
schizocoel
done
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question_answer 155) Cottar cells are characteristic of
A)
earthworm
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B)
roundworms
done
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C)
coelenterata
done
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D)
sponges
done
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question_answer 156) In honey bee, the drones are
A)
sterile male
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B)
fertile male
done
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C)
fertile female
done
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D)
sterile female
done
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question_answer 157) Plasmids are found in
A)
virus
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B)
bacteria
done
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C)
fungi
done
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D)
viroid
done
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question_answer 158) Blood leaving the liver and going towards heart is rich in
A)
bile
done
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B)
urea
done
clear
C)
ammonia
done
clear
D)
oxygen
done
clear
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question_answer 159) Membrane that covers the vacuole in a plant cell is called
A)
tonoplast
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B)
tonoplasm
done
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C)
jacket
done
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D)
cell membrane
done
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question_answer 160) In earthworm, gizzard is found, in which of the following segments?
A)
9th segment
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B)
18th segment
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C)
13th segment
done
clear
D)
16th segment
done
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question_answer 161) The infective stage of Entamoeba histolytica is
A)
trophozoite stage
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B)
binucleated cyst stage
done
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C)
tetranucleated cyst stage
done
clear
D)
None of the above
done
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question_answer 162) The initiation codon in eukaryotes is
A)
AUG
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B)
UGA
done
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C)
UAG
done
clear
D)
UAA
done
clear
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question_answer 163) The number of heart chambers found in cockroach is
A)
4
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B)
7
done
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C)
5
done
clear
D)
13
done
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question_answer 164) % sign is used for
A)
actinomorphic flower
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B)
zygomorphic flower
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C)
incomplete flower
done
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D)
epigynous flower
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question_answer 165) Nuclear membrane is continuous with
A)
rough endoplasmic reticulum
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B)
smooth endoplasmic reticulum
done
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C)
cell membrane
done
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D)
Golgi bodies
done
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question_answer 166) XO chromosomal abnormality in humans causes
A)
Turners syndrome
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B)
Downs syndrome
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C)
Darwins syndrome
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D)
Klinefelters syndrome
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question_answer 167) Fertilization of ovum takes place in rabbit, man and other placenta! mammals in
A)
ovary
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B)
fallopian tube
done
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C)
cervix
done
clear
D)
uterus
done
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question_answer 168) At what stage in test tube babies, the zygote is implanted in human female?
A)
32-celled stage
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B)
64-celled stage
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C)
100-celled stage
done
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D)
164-celled stage
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question_answer 169) Pentoses and hexoses are common
A)
monosaccharides
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B)
disaccharides
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C)
polysaccharides
done
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D)
oligosaccharides
done
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question_answer 170) Pheromone is
A)
a product of endocrine gland
done
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B)
used for animal communication
done
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C)
messenger RNA
done
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D)
always protein
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question_answer 171) Secretion is under control of neurosecretory nerve axons in
A)
pineal gland
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B)
adrenal cortex
done
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C)
anterior pituitary
done
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D)
posterior pituitary
done
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question_answer 172) The smallest endocrine gland is
A)
thyroid
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B)
parathyroid
done
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C)
pituitary
done
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D)
adrenal
done
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question_answer 173) Gland responsible for calcium metabolism!
A)
thymus
done
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B)
thyroid
done
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C)
parathyroid
done
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D)
adrenal
done
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question_answer 174) The daughter born to haemophilic father and normal mother could be
A)
normal
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B)
carrier
done
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C)
haemophilic
done
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D)
None of the above
done
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question_answer 175) Mast cells secrete
A)
serotonin
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B)
heparin
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C)
histamine
done
clear
D)
All of these
done
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question_answer 176) Role of spleen in mammal is
A)
to control blood pressure
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B)
to assist liver
done
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C)
to act as haemopoietic tissue
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D)
to assist kidneys
done
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question_answer 177) Excretory product of spider is
A)
uric acid
done
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B)
ammonia
done
clear
C)
guanine
done
clear
D)
None of the above
done
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question_answer 178) Green glands present in some arthropods help in
A)
respiration
done
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B)
excretion
done
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C)
digestion
done
clear
D)
reproduction
done
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question_answer 179) Right lung of rabbit is divided into
A)
four lobes
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B)
two lobes
done
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C)
six lobes
done
clear
D)
eight lobes
done
clear
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question_answer 180) Haemoglobin is having maximum affinity with
A)
\[C{{O}_{2}}\]
done
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B)
\[CO\]
done
clear
C)
\[{{O}_{2}}\]
done
clear
D)
\[N{{H}_{3}}\]
done
clear
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