A mixture of gas consist of 2 moles of oxygen and 4 moles of argon at temperature T. If all vibrational modes as neglected, then the total energy of system is
A)
3RT
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B)
9RT
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C)
11RT
done
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D)
None of these
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The threshold wavelength for a metal having work function\[{{w}_{0}}\text{ }is\text{ }{{\lambda }_{0}}\]. What is the threshold wavelength for a metal whose work function is\[\frac{{{w}_{0}}}{2}\]?
A)
\[4{{\lambda }_{0}}\]
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B)
\[2{{\lambda }_{0}}\]
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C)
\[\frac{{{\lambda }_{0}}}{2}\]
done
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D)
\[\frac{{{\lambda }_{0}}}{4}\]
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The angular speed \[\left( \omega \right)\] of an electron revolving in nth Bohr orbit and corresponding principal quantum number (n) are related as
A)
\[\omega \propto \frac{1}{{{n}^{3}}}\]
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B)
\[\omega \propto \frac{1}{{{n}^{2}}}\]
done
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C)
\[\omega \propto {{n}^{2}}\]
done
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D)
\[\omega \propto {{n}^{3}}\]
done
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A uniform steel rod of \[2.5 m{{m}^{2}}\] cross-sectional area is heated through\[40{}^\circ C\]. The force exerted on it is \[({{\alpha }_{steel}}\,=\,\,1.2\times {{10}^{-\,5}}\,/{}^\circ C,\,\,y\,\,=\,\,2\times 1{{0}^{11}}\,N/{{m}^{2}})\]
A)
480 N
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B)
240 N
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C)
140 N
done
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D)
None of these
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Two particles on a wave having wavelength 2m are at the distance of 5m and 9 m respectively from origin. The phase difference between particle is
A)
\[\pi \]
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B)
\[2\pi \]
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C)
\[\frac{\pi }{2}\]
done
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D)
\[4\pi \]
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Two inductors \[{{\operatorname{L}}_{1}}\,\,and\,\,{{L}_{2}}\] are connected in parallel and a time varying current flows as shown in figure. Then the ratio of currents \[{{i}_{1}}/{{i}_{2}}\] at any time t is
A)
\[\frac{{{L}_{1}}}{{{L}_{2}}}\]
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B)
\[\frac{{{L}_{2}}}{{{L}_{1}}}\]
done
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C)
\[\frac{{{L}_{1}}{{L}_{2}}}{{{({{L}_{1}}+{{L}_{2}})}^{2}}}\]
done
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D)
\[\frac{{{({{L}_{1}}{{L}_{2}})}^{2}}}{{{(L_{1}^{2}+L_{2}^{2})}^{2}}}\]
done
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In Young's double slit experiment, the separation between slits is halved and the distance between slits and tin screen is doubled. The fringe width is
A)
unchanged
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B)
halved
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C)
doubled
done
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D)
quadrupled
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Damping force on an oscillator is directly proportionally to the velocity, then units of the constant a proportionality are
A)
kg s
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B)
\[kg\text{ }{{s}^{-\,1}}\]
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C)
\[kg\text{ m}{{s}^{-\,2}}\]
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D)
\[kg\text{ m}{{s}^{-\,1}}\]
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A wave equation is given by \[y=4\,\sin \,\left[ \pi \left( \frac{t}{5}-\frac{x}{9}+\frac{1}{6} \right) \right]\] Where x is in cm and t in second. Which of the following is true?
A)
\[\lambda =1.8 cm\]
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B)
\[\operatorname{v}=4\,\,m{{s}^{-}}^{1}\]
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C)
\[\operatorname{a} = 0.4 m\]
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D)
\[f=50\,\,Hz\]
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In figure shown, there are two convex lenses \[{{L}_{1}}\,\,and\,\,{{L}_{2}}\] having focal length \[{{F}_{1}}\,\,and\,\,{{F}_{2}}\] respectively. The distance between \[{{L}_{1}}\,\,and\,\,{{L}_{2}}\] will be
A)
\[{{\operatorname{F}}_{1}}\,\,+\,\,{{F}_{2}}\]
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B)
\[{{\operatorname{F}}_{1}}\,\,-\,\,{{F}_{2}}\]
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C)
\[{{\operatorname{F}}_{1}}\]
done
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D)
\[{{F}_{2}}\]
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The radioactivity of a sample is \[{{I}_{1}}\] at a time \[{{t}_{1}}\] and \[{{I}_{2}}\] at a time\[{{t}_{2}}\]. If the half-life of the sample is \[{{\tau }_{1/2}}\] then the number of nuclei that have disintegrated in the time \[{{t}_{2}}-{{t}_{1}}\] is proportional to
A)
\[{{l}_{1}}{{t}_{2}}-{{l}_{2}}{{t}_{1}}\]
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B)
\[{{l}_{1}}-{{l}_{2}}\]
done
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C)
\[\frac{{{l}_{1}}-{{l}_{2}}}{{{\tau }_{1/2}}}\]
done
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D)
\[\left( {{l}_{1}}-{{l}_{2}} \right)\,{{\tau }_{1/2}}\]
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Two radioactive materials \[{{x}_{1}}\,\,and\,\,{{x}_{2}}\] have decay constants\[5\lambda \,\,and\,\,\lambda \], respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of \[{{x}_{1}}\] to that of \[{{x}_{2}}\] will be after a time.
A)
\[\lambda \]
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B)
\[\frac{1}{2}\lambda \]
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C)
\[\frac{1}{4}\,\lambda \]
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D)
\[\frac{e}{\lambda }\,\]
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In the case of forward biasing of a p-n junction diode, which one of the following figures correctly depicts the direction of conventional current?
A)
done
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B)
done
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C)
done
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D)
done
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How many images are formed by the lens shown, if an object is kept on its axis as shown below?
A)
1
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B)
2
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C)
3
done
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D)
4
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Which of the following in case of spherical mirror depend on whether the rays are paraxiol or not?
A)
Radius of curvature
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B)
Pole
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C)
Focus
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D)
Principal axis
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If in a wire of Young?s modulus Y, longitudinal strain X is produced then the potential energy stored in its unit volume will be
A)
\[0.5 Y{{X}^{2}}\]
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B)
\[0.5 {{Y}^{2}}X\]
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C)
\[2 Y{{X}^{2}}\]
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D)
\[{{\operatorname{YX}}^{2}}\]
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A wire is suspended vertically from one of its ends is stretched by attaching a weight of 200 N to the lower end. The weight stretches the wire by 1 mm. Then the elastic energy stored in wire is
A)
0.2 J
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B)
10 J
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C)
20 J
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D)
0.1 J
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If a car of mass 1000 kg negotiates a banked curve of radius 90 m on a irictioluess load. If the angle of banking is \[45{}^\circ \], then speed of car is
A)
10 m/s
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B)
5 m/s
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C)
20 m/s
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D)
30 m/s
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A hollow cylinder has a charge q within it. If \[\phi \] is the electric flux in unit of voltmeter associated with the curved surface B, the flux linked with the plane surface A in unit of voltmeter will be
A)
\[\frac{1}{2}\left( \frac{q}{{{\varepsilon }_{0}}}-\phi \right)\]
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B)
\[\frac{q}{2\,{{\varepsilon }_{0}}}\]
done
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C)
\[\frac{\phi }{3}\]
done
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D)
\[\frac{q}{\,{{\varepsilon }_{0}}}-\phi \]
done
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The thermo emf-E in volts of a certain thermocouple is found to vary with temperature difference \[\theta \] in \[{}^\circ C\] between the two junctions according to the relation \[E= 30 \theta \,\,- \frac{{{\theta }^{2}}}{15}\] then the neutral temperature of thermocouple is
A)
\[400{}^\circ C\]
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B)
\[225{}^\circ C\]
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C)
\[450{}^\circ C\]
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D)
\[30{}^\circ C\]
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The equivalent resistance between A and B as shown in figure is
A)
\[0.2\text{ }\Omega \]
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B)
\[0.4\text{ }\Omega \]
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C)
\[0.6\text{ }\Omega \]
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D)
None of these
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Three rods of same dimensions have thermal conductivities 3K, 2K and K they are arranged as shown below
What will be the temperature T of the junction?
A)
\[\frac{200}{3}{}^\circ C\]
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B)
\[\frac{100}{3}{}^\circ C\]
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C)
\[75\,{}^\circ C\]
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D)
\[\frac{50}{3}\,{}^\circ C\]
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If 8 dipoles of charges of magnitude \[\pm \,e\] are placed inside the cube. The electric flux coming out of cube will be
A)
\[16\,e/{{E}_{0}}\]
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B)
\[8\,e/{{E}_{0}}\]
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C)
\[75\,{}^\circ C\]
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D)
zero
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A ladder is leaned against a smooth wall and it is allowed to slip on a frictionless floor. Which figure represents the track of its centre of mass?
A)
done
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B)
done
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C)
done
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D)
done
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The coordinates of a moving particle at any time t are given by \[\operatorname{x}=\alpha {{t}^{3}}\,\,and\,\,y=\beta {{t}^{3}}\]. The speed of the particle at time t is given by
A)
\[3t\sqrt{{{\alpha }^{2}}+{{\beta }^{2}}}\]
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B)
\[3{{t}^{2}}\sqrt{{{\alpha }^{2}}+{{\beta }^{2}}}\]
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C)
\[{{t}^{2}}\sqrt{{{\alpha }^{2}}+{{\beta }^{2}}}\]
done
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D)
\[\sqrt{{{\alpha }^{2}}+{{\beta }^{2}}}\]
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If a solenoid of magnetic moment \[0.2\,A{{m}^{2}}\] in a uniform magnetic field 0.16 T experiences a torque 0.016 Nm, then angle made by a solenoid axis with magnetic field is
A)
\[30{}^\circ \]
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B)
\[45{}^\circ \]
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C)
\[60{}^\circ \]
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D)
\[90{}^\circ \]
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The maximum percentage error in the determination of \[\operatorname{g}(g= 4{{\pi }^{2}}l/{{t}^{2}})\], when l and t are measured with \[\pm 2%\] and \[\pm 3\,%\] errors is
A)
\[2\,%\]
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B)
\[6\,%\]
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C)
\[8\,%\]
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D)
None of these
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A hollow metal sphere of radius 0.01 m is charged such that potential on its surface is 80 V. The potential at centre sphere is
A)
8 V
done
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B)
80 V
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C)
zero
done
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D)
800 V
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ABC is an equilateral triangle with O as its centre. \[{{F}_{1}},\,\,{{F}_{2}}\,\,and\,\,{{F}_{3}}\] represents three forces acting along the sides AB, BC and AC respectively. If total torque about O is zero, then the magnitude of \[{{F}_{3}}\] is
A)
\[\frac{{{F}_{1}}\,\,and\,\,{{F}_{2}}}{2}\]
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B)
\[{{F}_{1}}\,\,-\,\,{{F}_{2}}\]
done
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C)
\[{{F}_{1}}\,\,+\,\,{{F}_{2}}\]
done
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D)
\[2({{F}_{1}}\,\,+\,\,{{F}_{2}})\]
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If a plane is flying horizontally at 100 m/s at a height of 1000 m releases a bomb from it, then velocity with which the bomb hits the ground is
A)
72.1 m/s
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B)
172.1 m/s
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C)
197.2 m/s
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D)
None of these
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In the given figure the loop is fixed but straight wire can move. The straight wire will
A)
remain stationary
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B)
move towards the loop
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C)
move away from the loop
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D)
rotates about the axis
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Figure shows three spherical and equipotential surfaces A, B and C round a point charge q. The potential difference\[{{V}_{A}}-{{V}_{B}}={{V}_{B}}-{{V}_{C}}\]. If \[{{t}_{1}}\,\,and\,\,{{t}_{2}}\] be the distances between them then
A)
\[{{t}_{1}}\,\,=\,\,{{t}_{2}}\]
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B)
\[{{t}_{1}}\,\,>\,\,{{t}_{2}}\]
done
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C)
\[{{t}_{1}}\,\,<\,\,{{t}_{2}}\]
done
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D)
\[{{t}_{1}}\,\,\le \,\,{{t}_{2}}\]
done
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Relative velocity of geostationary satellite with respect to the spinning motion of earth is
A)
0 m/s
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B)
6 m/s
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C)
12 m/s
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D)
14 m/s
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Monochromatic light of wavelength 4500 A falls on slit width a. In diffraction pattern secondary maxima deviates through\[30{}^\circ \]. The slit width is
A)
1800 A
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B)
13500 A
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C)
22500 A
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D)
None of these
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When light is incident on a transparent medium at a polarising angle, then the angle between the reflected and refracted ray is
A)
\[30{}^\circ \]
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B)
\[45{}^\circ \]
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C)
\[60{}^\circ \]
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D)
\[90{}^\circ \]
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An engine has a efficiency of 1/6. When the temperature of sink is reduced by \[62{}^\circ C\], its efficiency is doubled, then the temperature of source is
A)
\[62{}^\circ C\]
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B)
\[99{}^\circ C\]
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C)
\[37{}^\circ C\]
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D)
\[124{}^\circ C\]
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A charged particle is released from rest in a region of steady and uniform electric and magnetic fields, which are parallel to each other. The particle will move in a
A)
circle
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B)
straight line
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C)
helix
done
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D)
cycloid
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If the current-voltage graphs for a given metallic wire at two different temperatures \[{{T}_{1}}\,\,and\,\,{{T}_{2}}\] are shown in figure, then
A)
\[{{\operatorname{T}}_{1}}>{{T}_{2}}\]
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B)
\[{{\operatorname{T}}_{2}}>{{T}_{1}}\]
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C)
\[{{\operatorname{T}}_{1}}={{T}_{2}}\]
done
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D)
None of these
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The temperature (T) dependence of resistivity (p) of a semiconductor is represented by
A)
done
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B)
done
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C)
done
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D)
done
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If a ball is thrown vertically upwards with a speed of 19.6 m/s from the top of a tower returns to earth in 6 seconds, then the height is tower is
A)
38.8 m
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B)
58.8 m
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C)
98.8 m
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D)
None of these
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A string of length I fixed at one end carries a mass m at the other end. The string makes \[\frac{2}{\pi }\,rev/s\] around the horizontal axis through the fixed end as shown in the figure, the tension in the string is
A)
16 ml
done
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B)
4 ml
done
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C)
8 ml
done
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D)
2 ml
done
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A spherical planet has a mass \[{{M}_{z}}\] and diameter\[{{D}_{z}}\]. A particle of mass m falling freely near the surface of the planet, then it will experience on acceleration due to gravity equal to
A)
\[\frac{G{{M}_{z}}}{D_{z}^{2}}\]
done
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B)
\[\frac{4G{{M}_{z}}}{D_{z}^{2}}\]
done
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C)
\[\frac{G{{M}_{z}}}{D_{z}^{2}}\]
done
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D)
None of these
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If a solid cylinder of mass 3 kg is rolling on a horizontal surface with velocity 4 m/s. It collides with a horizontal spring of force constant 200 N/m. The maximum compression produced in the spring will be
A)
0.6 m
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B)
0.5 m
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C)
0. 7 m
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D)
0.2 m
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If a particle has initial velocity \[\left( 2\hat{i} +3\hat{j} \right)\] and acceleration\[\left( 0.3\hat{i} +0.2\hat{j} \right)\]. The magnitude of velocity after 10 seconds will be
A)
5 units
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B)
9 units
done
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C)
\[5\sqrt{2}\,\,units\]
done
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D)
\[9\sqrt{2}\,\,units\]
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The logic gate represented by the following combination of logic gate is
A)
OR
done
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B)
NAND
done
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C)
AND
done
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D)
NOR
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50 mL each of \[1\,\,M\,\,C{{H}_{3}}COOH\] and 0.50 M NaOH are mixed\[({{K}_{a}}\,\,for\,\,C{{H}_{3}}COOH\,\,=\,\,1.8\times 1{{0}^{-\,5}})\]. The pH of the mixture is
A)
6.27
done
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B)
2.67
done
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C)
1.67
done
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D)
4.74
done
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Chlorobenzene reacts with chlorine in the presence of Anhyd. \[FeC{{l}_{3}}\] gives ortho and para dichlorobenzene. Which of the following order is correct regarding dipole moment of o, m and p dichloro benzene?
A)
\[\operatorname{o}>p>m\]
done
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B)
\[\operatorname{p}>o>m\]
done
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C)
\[\operatorname{m} > o > p\]
done
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D)
\[\operatorname{o} > m > p\]
done
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A compound obtained by the hydrolysis of the substance A, on reduction forms 2-hexanol. Hence the substance A is
A)
3, 3-dichlorohexane
done
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B)
2, 3-dichlorohexane
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C)
2, 2-dichlorohexane
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D)
1, 1-dichlorohexane
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A metal is said to be diamagnetic if it does not have any unpaired electron. Among the following, which one is diamagnetic?
A)
\[C{{o}^{2+}}\]
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B)
\[C{{u}^{2\text{+}}}\]
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C)
\[M{{n}^{2\text{+}}}\]
done
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D)
\[S{{c}^{3\text{+}}}\]
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Metals are generally hard, opaque, shiny and good conductor of heat and electricity. Which of the following elements has highest density?
A)
Os
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B)
Ir
done
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C)
Fe
done
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D)
Ru
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Paracetamol is classified as a mild analgesic. It is commonly used for the relief of headaches and other minor aches and pains and is a major ingredients in numerous cold and flu remedies. Paracetamol can be produced by acetylation of
A)
done
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B)
done
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C)
done
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D)
done
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Match List I with List II and select the correct answer using the codes given below the lists.
List I List II I. Iodoform A. Anasthetic II. Methyl salicylate B. Antiseptic III. Diethyl ether C. Insecticide IV. Hexachloroxyclohexane D. Detergent E. Pain Balm
Codes
A)
I-B, II-E, III-C, IV-D
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B)
I-D, II-B, III-A, IV-C
done
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C)
I-B, II-E, III-A, IV-C
done
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D)
I-C, II-A, III-D, IV-B
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Consider following statements I. Cationic polymerisation occurs in monomers with electron donating substituents. II. Anionic polymerisation occurs in monomers with electron withdrawing substituents. III. Head to head chain growth polymerisation occurs in polystyrene. Select the correct statements.
A)
I, II
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B)
I, III
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C)
II. III
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D)
I, II, III
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View Answer play_arrow
A DNA nucleotide chain has AGCTTCGA sequence. The nucleotide sequence of other chain would be
A)
TCGAAGCT
done
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B)
GCTAAGCT
done
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C)
TAGCATAT
done
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D)
GATCCTAG
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Owing to the presence of a double bond in each repeat unit, natural rubber is susceptible to vulcanization and sensitive to ozone cracking. When rubber is heated with sulphur, it produces
A)
galvanised rubber
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B)
vulcanised rubber
done
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C)
bessemerised rubber
done
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D)
sulphonised rubber
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What will be the final product of following reaction?
A)
done
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B)
done
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C)
Both [a] and [b]
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D)
None of these
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Formalin is a colourless solution in water that is mostly used as a preservative. It is also used as a disinfactant and an antibacterial. It is
A)
\[\operatorname{a} solution of 40 % HCHO and 60 % C{{H}_{3}}CHO\]
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B)
\[40\,%\] aqueous solution of HCHO
done
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C)
solution of fructose
done
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D)
None of these
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View Answer play_arrow
Which of the following reaction will not produce an amine?
A)
done
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B)
\[C{{H}_{3}}CH=C{{H}_{2}}\,\,\xrightarrow{NaN{{H}_{2}}}\]
done
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C)
\[2C{{H}_{3}}C{{H}_{2}}\,-\,Cl\,\,\,\,\xrightarrow{N{{H}_{3}}}\]
done
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D)
done
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View Answer play_arrow
Propyl nitrile may be converted into butyl amine by using reduction. Which of the following reagent can do this?
A)
Sn/HCl
done
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B)
\[\operatorname{L}iAI{{H}_{4}}\]
done
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C)
cone. HCl
done
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D)
All of these
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View Answer play_arrow
Arrange these substrate in case of dehydration.
A)
\[\operatorname{I} < II < III < IV\]
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B)
\[\operatorname{I}II < IV< II < I~\]
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C)
\[\operatorname{I} < II < IV < III\]
done
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D)
\[\operatorname{II} < III < IV < I\]
done
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View Answer play_arrow
A common nitrate test is known as brown ring test. An organic compound which give possible brown ring test and chiral is
A)
done
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B)
done
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C)
done
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D)
done
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View Answer play_arrow
Which of the following will undergo fastest \[{{S}_{N}}1\] reaction?
A)
done
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B)
done
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C)
done
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D)
done
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View Answer play_arrow
The number of reducing agents are used to reduce double bond into single bond. Which of the following will lead the conversion of cyclohexene to cyclohexane?
A)
Wilkinson's catalyst
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B)
\[\operatorname{Li}/N{{H}_{3}}\,(l)\]
done
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C)
\[{{\operatorname{H}}_{2}}/Ni\]
done
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D)
All of these
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View Answer play_arrow
A drop of a solution \[\left( volume =0.05 mL \right)\] contains\[6.0\times 1{{0}^{-}}^{7}\,mol of\,\,{{H}^{+}}\]. If the rate of disappearence from the drop? \[6.0 \times 1{{0}^{5}}mol {{L}^{-}}^{1}\,s\], how long will it take for \[{{H}^{+}}\] to disappear from the drop?
A)
\[8.0\,\times {{10}^{8}}s\]
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B)
\[2.0\,\,\times \,\,1{{0}^{-}}^{8}s\]
done
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C)
\[6.0\,\,\times \,\,1{{0}^{-}}^{6}s\]
done
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D)
\[2.0\,\,\times \,\,1{{0}^{-}}^{2}s\]
done
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View Answer play_arrow
When two or more species have same structures are called isostructural species. \[S{{F}^{\text{4}}}\] is isostructural with
A)
\[{{\operatorname{TeF}}_{4}}\]
done
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B)
\[C{{H}_{4}}\]
done
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C)
\[SnC{{l}_{4}}\]
done
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D)
\[{{\operatorname{XeOF}}_{4}}\]
done
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View Answer play_arrow
When a compound has \[\operatorname{M}-C\] bond called organometallic compound. Which of the following is not an organometallic compound?
A)
Tristriphenyl phosphine rhodium chloride
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B)
Ziesse's salt
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C)
Ferrocene
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D)
Sodium cyanide
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When a substance or element easily reduced, it is said to be oxidising agent. Which of the following represent correct order of oxidising power?
A)
\[{{\operatorname{F}}_{2}}<C{{l}_{2}}<B{{r}_{2}}<{{I}_{2}}\]
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B)
\[{{I}_{2}}<{{F}_{2}} <C{{l}_{2}}< B{{r}_{2}}\]
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C)
\[{{\operatorname{Br}}_{2}}< {{I}_{2}} < {{F}_{2}} < C{{l}_{2}}\]
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D)
\[{{\operatorname{I}}_{2}} < B{{r}_{2}} < C{{l}_{2}}<{{F}_{2}}\]
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Which of the following compound is not a sandwich compound? I. Ferrorcene II. Uranocene III. Nickelocene IV. Dibenzene chromium
A)
I, II and III
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B)
I, II and IV
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C)
All of these
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D)
None of these
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\[\left[ Co{{\left( N{{H}_{3}} \right)}_{4}}{{\left( N{{O}_{2}} \right)}_{2}} \right]\,Cl\] exhibits
A)
ionisation isomerism, geometrical isomerism and optical isomerism
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B)
linkage isomerism, geometrical isomerism and optical isomerism
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C)
linkage isomerism. ionisation isomerism and optical isomerism
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D)
linkage isomerism, ionisation isomerism and geometrical isomerism
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Select correct statements and choose the correct code out of the following. I. \[{{\operatorname{CH}}_{3}} -C\,-C{{H}_{3}}\] angle in \[{{(C{{H}_{3}})}_{2}}C\,\,=\,\,C{{H}_{2}}\] is smaller and the \[{{\operatorname{CH}}_{3}} -\,\,C=C{{H}_{2}}\]; angle is larger than trigonal \[120{}^\circ \]. II. \[O-I-F\] angle is less than \[90{}^\circ \left( 89{}^\circ \right) in IOF_{4}^{\Theta }\]. III. \[SeOC{{l}_{2}}, Cl\,\,-Se\,\,-\,\,Cl\] angle is less than the \[\operatorname{Cl}\,-Se-O\] angle. IV. \[\operatorname{POC}{{l}_{3}}\] is tetrahedral with a double bond between P and O, there is no lone pair on central atom.
A)
I and II are correct
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B)
II and III are correct
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C)
I, II and III are correct
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D)
All are correct
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Van-Arkel method of purification of metals involves converting the metals to a
A)
volatile stable compound
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B)
non-volatile stable compound
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C)
volatile unstable compound
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D)
None of these
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Element A burns in nitrogen to given an ionic compound B. Compound B reacts with water to given C and D. AB solution of C becomes 'Milky' on bubbling carbon dioxide. The element A is
A)
Na
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B)
Mg
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C)
Ca
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D)
Be
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The product of the following reaction
A)
done
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B)
done
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C)
done
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D)
done
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A certain current liberates 0.500 g of \[{{H}_{2}}\] in 2.00 hr. How many gram of oxygen can be liberated by the same current in the same time?
A)
0.500 g
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B)
8.00 g
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C)
4.00 g
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D)
16.00 g
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The product X in the reaction,
A)
done
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B)
done
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C)
done
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D)
done
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Carbon sub-oxide \[\left( {{C}_{3}}{{O}_{2}} \right)\] has recently been shown as a component of the atmosphere of Venus. Which of the following formulation represents the correct ground state Lewis structure for carbon suboxide?
A)
\[:O:C::C:C:O:\]
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B)
\[:O::C::C:C::O:\]
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C)
\[:\overset{.\,\,.}{\mathop{O}}\,::C::C::C::\overset{.\,\,.\,}{\mathop{O}}\,:\]
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D)
\[:O:C:C:C:O:\]
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Which graph represents auto catalysis?
A)
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B)
done
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C)
done
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D)
done
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If the degree of ionisation of water will be \[1.8 \times 1{{0}^{-}}^{9}\] at 298 K, its ionisation constant will be
A)
\[1.8\,\,\times \,\,1{{0}^{-}}^{16}\]
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B)
\[1\,\,\times \,\,1{{0}^{-}}^{14}\]
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C)
\[1\,\,\times \,\,1{{0}^{-}}^{16}\]
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D)
\[1.67\,\,\times \,\,1{{0}^{-}}^{14}\]
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Active mass of 32 g of HI in a 4 L flask would be
A)
1/4
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B)
1/8
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C)
1/16
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D)
2/18
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Calculate the value of \[\Delta G\] of a cell reaction \[\operatorname{AgCl}\,\,+\,\,{{e}^{-}} \xrightarrow{{}}\, Ag\,\,+\,\,C{{l}^{\Theta }}\] If standard emf of a cell is 0.220 V
A)
21.20kJ
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B)
-21.20 kJ
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C)
-2.12 kJ
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D)
+2.12 kJ
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What will be the percentage of iron (III) present in Fey 930?
A)
\[84.95 %\]
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B)
\[45.64%\]
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C)
\[15.05 %~\]
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D)
\[44.36\,%\]
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On the basis of different possible values of \[\alpha ,\,\,\beta \,\,and\,\,\gamma \]and y and different axial distances or edge lengths a, b and c following seven types of three dimensional primitive cells or crystal systems. Which of the following represent triclinic crystal?
A)
\[a=b=c,\,\,\alpha =\beta =\gamma =90{}^\circ \]
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B)
\[a\ne b=c,\,\,\alpha \ne \beta =\gamma =90{}^\circ \]
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C)
\[a\ne b\ne c,\,\,\alpha \ne \beta \ne \gamma =90{}^\circ \]
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D)
\[a\ne b\ne c,\,\,\alpha =\beta =\gamma \ne 90{}^\circ \]
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For the following reaction \[{{H}_{2}}\,(g)+{{I}_{2}}\,\,(g)\,\,\rightleftharpoons \,\,2HI\,\,(g)\] If value of equilibrium constant is 50 at \[25{}^\circ C\]. Then, the value of \[\Delta G\] will be
A)
- 6.964 kJ
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B)
- 4.964 kJ
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C)
- 9.693 kJ
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D)
- 6.496 kJ
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Carnot in 1824 gave an imaginary reversible cycle which demonstrates the maximum conversion of heat into work. In a cyclic process, net work done by a system is equal to
A)
0
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B)
\[\Delta U\]
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C)
\[\Delta H\]
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D)
q
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Molarity (M) of aqueous solution of acetic acid having density 1.12 g/mL and molality 5.0 m is
A)
4.31
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B)
4.13
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C)
8.62
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D)
5.0
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On the basis of nature of force existing between adsorbate and adsorbent adsorption can be of the following two types 1. Physiosorption 2. Chemisorption. Which of the following is incorrect regarding physisorption?
A)
Adsorption on solid is reversible
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B)
Adsorption is spontaneous
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C)
Adsorption increases with increase in temperature
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D)
Both AH and AS are negative
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A first order reaction is half complete in 45 min. How long does it need for 99.9% of the reaction to be completed?
A)
20 h
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B)
10 h
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C)
7.5 h
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D)
5 h
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The properties of a dilute solution which depends only upon the number of particles present in a solution are called colligative properites. Which of the following is not a colligative property?
A)
Osmotic pressure
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B)
Relative lowering of vapour pressure
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C)
Elevation in boiling, point
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D)
Vapour pressure
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A mixture of ethanol and \[CC{{l}_{4}}\] contain \[30\,%\]\[{{\operatorname{CCl}}_{4}}\] by weight. Mole fraction of \[CC{{l}_{4}}\] in the mixture is
A)
0.99
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B)
0.11
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C)
0.19
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D)
0.81
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Major product of the following reaction is
A)
done
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B)
done
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C)
done
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D)
done
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Assertion [A] Activity of an enzyme is pH dependent. Reason [R] Change in pH affects the solubility of the enzyme in water.
A)
Both A and R are true and R is the correct explanation of A
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B)
Both A and R are true, but R is not the correct explanation of A
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C)
A is true, but R is false
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D)
A is false, but R is true
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Which among the following is an auto-immune disease?
A)
Hashimoto's disease
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B)
Addison's disease
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C)
Adrenal virilism
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D)
My xo edema
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An individual had been diagnosed with a Salmonella infection, which he acquired, while on vacation. She had been treated with antibiotic and the diarrhoea she was experiencing, had resolved. One day later, he developed a chest pain in the centre of chest. The important point was that the person had never any problem with his cardiovascular system. Even at that time his BP and pulse rate is normal, but ECG showed diffuse PR depression in the anterolateral leads. Most probable diagnosis of above history is
A)
angina pectoris
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B)
pericarditis
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C)
relation between Salmonella infection and chest pain could not be established
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D)
typhoid
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Which of the following is an example of adaptive radiation?
A)
Wings of insect, bird, bat
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B)
Tadpole larva of Herdmania
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C)
Darwin's finches of Galapagos
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D)
Egg laying mammals
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Which of the following elements is/are trace elements or microelements for human? I. Zinc II. Manganese III. Molybdenum IV. Calcium
A)
All of these
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B)
I, II and IV
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C)
I, III and IV
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D)
I, II and III
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Which of the following low temperature treatment of flowering plants that reduces the growing phase of plant and induces early flowering is termed as?
A)
Geotropism
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B)
Senescence
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C)
Vernalisation
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D)
Epinasty
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Choose the correct statements. I. Abiogenesis means spontaneous generation. II. Theory of biogenesis was given by Redi. III. Spallanzani stated that air carried microorganisms. IV. Cosmozoic theory of life was given by Louis Pasteur.
A)
I, II and IV
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B)
Ill, II and I
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C)
IV, II and III
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D)
I, II, III and IV
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World Summit of Sustainable Development 2002 was held in which of the following country?
A)
Rio, Brazil
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B)
Sydney, Australia
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C)
Johansburg, South Africa
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D)
Amsterdam, Netherlands
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Which of the following national park is first to established in India for conserving wildlife?
A)
Gir National Park, Gujarat
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B)
Periyar National Park, Kerala
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C)
Jim Corbett National Park, Uttarakhand
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D)
Kaziranga National Park, Asom
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'XX' is a small crystals of calcium carbonate in the saccule and utricle of the ear. In the given statement term 'XX' has been used for one of the following.
A)
Fenestra rotunda
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B)
Malleus
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C)
Otoconia
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D)
Utricles
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Choose the correct statement. I. pH of human blood is 7.4. II. \[C{{a}^{+}}\] is essential for muscle contraction. III. Nerve cells do not divide because they do not have nucleus. IV. Calcium carbonate is maximum in bones.
A)
I and III
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B)
I and II
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C)
Ill and IV
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D)
I, II, III and IV
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In the case of Drosophila, which of the following chromosome complement represents intersex?
A)
\[\operatorname{XY}+3A\]
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B)
\[\operatorname{XX}+3A\]
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C)
\[\operatorname{XO}+2A\]
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D)
\[\operatorname{XXX} + 3A\]
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Match the following columns.
Column I Column II A. Dysuria 1. Output 0 to 100 mL/day B. Oliguria 2. WBC s or pus in urine C. Pyuria 3. Painful urination D. Ketonuria 4. Presence of acetone bodies in urine
A)
A- 1 B-2 C-3 D-4
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B)
A-3 B- 5 C-2 D-4
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C)
A- 5 B-2 C-1 D-3
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D)
A-4 B-3 C-5 D-2
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Which of the following statement is true for amount of DNA in G 3-phase of cell cycle? It is
A)
equal to amount of DNA is \[{{G}_{1}}\]
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B)
double the amount of DNA is \[{{G}_{1}}\]
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C)
half the amount of DNA in \[{{G}_{1}}\]
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D)
four times the amount of DNA in \[{{G}_{1}}\]
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Paracetamol is the most common medicine used during the febrile condition. It is excreted by following process
Identify the location of reactions A, B, C and D of above process
A)
A-Liver B-Liver C-Liver D-Kidney
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B)
A-Stomach B-Kidney C-Liver D-Kidney
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C)
A-Kidney B-Lung C-Kidney D-Liver
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D)
A-Kidney B-Muscle C-Liver D-Kidney
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Recombination DNA technology can be used to produce medically useful protein. Which of the following can be produced by using this technology?
A)
Somatostatin
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B)
Insulin
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C)
Interferon
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D)
All of these
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Study the following pairs carefully and identify the pair which is not correctly matched.
A)
Tendon - connective tissue
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B)
Smooth muscle - involuntary
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C)
Myosin - contractile protein
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D)
Troponin - fibrous protein
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Filariasis causing Nematoda in India is
A)
Taeniasolium
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B)
Treponema pallidum
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C)
Ancyclostoma duodenale
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D)
Brugia malayi
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Statement [A] HUBS Statement A HBOT can be used for wound healing Statement [B] Oxygen is a critical factor in wound healing
A)
Both statements are true and statement B is the correct explanation of statement A.
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B)
Both statements are true, but not linked
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C)
Statement B is true, but A is false
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D)
Both statements are false
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Which of the following statement(s) is/are true for the structure of ear? I. Malleus is attached to tympanic membrane. II. Anvil is attached to oval window. III. Malleus is attached to oval window. IV. Stapes is attached to oval window.
A)
None of the above are true
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B)
I and III only
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C)
I and IV
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D)
II and IV
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Give the name of the drug, which is produced using biotechnology and is used for the treatment of cancer.
A)
Insulin
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B)
TSH
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C)
HGH
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D)
Interferon
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Colchine is extracted from which of the following flora?
A)
Rice
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B)
Wheat
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C)
Corn
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D)
Barley
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'Decarboxylation' refers to the removal of a \[C{{O}_{2}}\] molecule during a reaction. One of the following reaction involves decarboxylation. Identify that reaction
A)
Electron transport system
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B)
Lactic acid fermentation
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C)
Alcohol fermentation
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D)
Glycolysis
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Your friend Sangita has a history of mild to moderate phenylketonuria (PKU). She is very anxious regarding her progeny and approached you (as you are a biology student). What would be your advice to her?
A)
Never ever go for conception
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B)
Assure her that phenylalanine is not a teratogenic, so she should go for pregnancy
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C)
Tell her that phenylalanine is teratogenic, but she can have a normal baby with slight precaution
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D)
Both [b] and [c]
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Which of the following carbon provides the attachment point of base to form a nucleoside in pentose sugar?
A)
\[{{C}_{1}}\]
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B)
\[{{C}_{3}}\]
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C)
\[{{C}_{2}}\]
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D)
\[{{C}_{4}}\]
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Many care painting have been discovered in recent centuries. One of the following fossil man bellied to make these painting is
A)
Java ape man
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B)
Australopithecus
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C)
Cro-magnon man
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D)
Peking man
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Which of the following statement is not correct?
A)
Adrenal cortex develops from the ectoderm
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B)
Adrenal medulla is not enclosed by a fibrous capsule
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C)
Glucocorticoids are secreted by zona fasciculata of adrenal cortex
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D)
Aldosterone is a mineralocorticoids
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The sclerenchyma of the hypodermis in the Pinus needle helps in one of the following function
A)
increasing the absorptive surface of the cell
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B)
reducing transpiration
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C)
mechanical support
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D)
photosynthesis
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Identify the correct statement among following regarding the growth in plants
A)
Growth does not involve increase in parts
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B)
Growth occurs during definite periods
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C)
Growth is indeterminate
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D)
Growing regions are absent
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The baby given/shown in the adjacent figure is suffering from
A)
Charoot-Marie tooth disease
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B)
Tay-Sachs disease
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C)
Prader-Willi syndrome
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D)
Down?s syndrome
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The mutation theory was given by Hugo de Vries, while working on one of the following organised
A)
Althea rosea
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B)
Pisum sativum
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C)
Oenothera lamarckiana
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D)
Drosophila melanogaster
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Match the following columns.
Column I Column II A. Periyar National Park 1. Tamil Nadu B. Kalkad Sanctuary 2. Gujarat C. Dhangadhra Sanctuary 3. Kerala D. Rajaji National Park 4. Chandigarh
A)
A-2, B-4, C-3, D-1
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B)
A-1, B-3, C-4, D-2
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C)
A-3, B-1, C-2, D-4
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D)
A-4, B-2, C-1, D-3
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Consider the following statements. I. Montreal Protocol is a landmark international agreement to protect the stratospheric ozone and to limit the product and use of ozone-depleting substances. II. Earth summit adopted the recommendations of convention on climate change for reducing greenhouse gases. Which of the statement given above is/are correct?
A)
Only I
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B)
Only II
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C)
I and II
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D)
None of these
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Identify the A, B, C and D of ETS for I. Matrix of mitochondria II. Intermembrane space III. Inner membrane - Mitochondrial
A)
A-1, B-3, C-2, D-\[Cyt.-c\]
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B)
A-2, B-1, C-3, D-\[UQ{{H}_{2}}\]
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C)
A-3, B-2, C-1, D-\[UQ{{H}_{2}}\]
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D)
A-3, B-2, C-1, D-\[Cyt.-c\]
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Choose the correct statement (s). I. Cnidarians exhibit polymorphism. II. Hydrozoa is distinguished from other coelenterates by interstitial cells. III. Coelenterates differ from other animals in having nematocysts. IV. Polyphase is absent in Hydra.
A)
I and IV
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B)
II and III
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C)
I and III
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D)
IV and II
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Urea is produced by urea cycle and is transported via one of the following mode.
A)
CSF
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B)
RBC
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C)
Blood plasma
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D)
WBC
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Which of the following is an allergic reaction?
A)
Ulcerative colitis
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B)
Typhoid
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C)
Hay fever
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D)
Encephalitis
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If a strand of DNA has 0.1 mm length, what will be the ratio of length to diameter?
A)
500
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B)
50
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C)
50,000
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D)
5000
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Which one of the following component can function as carrier in active absorption?
A)
Ferredoxin and cytochrome
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B)
Cytochrome and lecithin
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C)
Lecithin
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D)
Plastoqu in one
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Match the following with their importance.
Column I Column II A. Endonucleases 1. Fermentation B. Streptokinase 2. Softening of bread and meat C. Zymase 3. Consistency and flavour to cheese D. Protease 4. Breaking DNA at specific sites
Codes
A)
A-1, B-2, C-3, D-4
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B)
A-4, B-5, C-1, D-2
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C)
A-2, B-4, C-3, D-1
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D)
A-5, B-2, C-4, D-2
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In 'obstetric and gynecology' the term 'nulliparous' is frequently use It refers to women having
A)
uterus absent
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B)
no children
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C)
irregular or absent menstrual cycle
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D)
ovary absent
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In the given urea cycle identify the markings, if I Arginosuccinate \[{{\operatorname{H}}_{2}}O\] in III \[N{{H}_{3}}\] IV L-Ornithine
A)
A-III, B-II, C-IV, D-I
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B)
A-IV, B-I, C-II, D-IV
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C)
A-III, B-I, C-II, D-IV
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D)
A-IV, B-II, C-I, D-III
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What is common in Bryophyllum, Sansevieria and Kalanchoe?
A)
All are members of family-Rubiaceae
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B)
All reproduce only sexually
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C)
All reproduce by leaf cutting vegetatively
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D)
All lack heterospory
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Tertiary structure of protein does not contain one of the following structure?
A)
di-sulphide bonds
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B)
van der Waal's bonds
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C)
hydrogen bonds
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D)
salt linkage
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View Answer play_arrow
Choose the correct option.
A)
When a fruit develops from the inflorescence, it is composite.
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B)
Mesocarp is the edible part in apple.
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C)
Hypanthium is a special type of inflorescence found in Euphorbia sp.
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D)
Inflorescence in Musa paradisiaca is a raceme.
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What is true about Oparin-Haldane theory? I. Coacervates were non-living structures that led to the formation of first living cells. II. Oxygen was not present in primitive atmosphere. III. Life originated in water. IV. UV rays and lightening are the possible early sources of energy.
A)
All except I
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B)
I, II and III
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C)
III, IV and I
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D)
I, II, III and IV
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Which of the following is not a physiological effect of ABA?
A)
Inhibition of growth
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B)
Tropic response
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C)
Role in water stress
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D)
Abscission
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Different types of cleavage found in different organisms but the cleavage which found in human egg is
A)
superficial
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B)
discoidal
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C)
radial
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D)
holoblastic
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Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called
A)
Xenogeny
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B)
Geitonogamy
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C)
Autogamy
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D)
Misogamy
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Great increase in the production of food grains is a result of Green Revolution due to
A)
use of pesticides
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B)
use of agrochemicals
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C)
high-yielding varieties
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D)
All of these
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Match the following columns.
Column I Column II A. Volvox. sponges 1. Biradial symmetry B. Hydra, star fish 2. Spherical summetry C. Sea anemones 3. Bilateral symmetry D. Vertebrates 4. Radial symmetry
A)
A-1, B-2, C-4, D-3
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B)
A-2, B-4, C-1, D-3
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C)
A-1, B-2, C-3, D-4
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D)
A-3, B-1, C-4, D-2
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Protein \[\alpha -1\] antitrypsin is used fot the treatment of the disease
A)
cancer
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B)
emphysema
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C)
rheumatoid arthritis
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D)
hepatitis B
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Match the following columns.
Column I Column II A. Allopatric speciation a new niche 1. Population enters a new niche B. Sympatric speciation 2. Rapid and abrupt mode of species formation C. Parapatric speciation 3. Small segment of the original population becomes isolated reproductively D. Quantum speciation 4. Part of population becomes geographically isolated
A)
A-1, B-2, C-3, D-4
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B)
A-4, B-3, C-1, D-2
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C)
A-3, B-1, C-4, D-2
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D)
A-2, B-4, C-3, D-1
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A cell increase in volume if the external medium is
A)
hypertonic
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B)
hypotonic
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C)
isotonic
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D)
Both [a] and [b]
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Identify the causative agent of syphilis
A)
Mycobacterium leprae
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B)
Leishmania donovani
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C)
Bacillus conjugal is
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D)
Treponema pallidum
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Hepatitis-B, lyme diseases vaccines, which are prepared through recombinant DNA technology are called
A)
first generation vaccines
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B)
second generation vaccines
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C)
third generation vaccines
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D)
None of these
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There are lots of intermediates which play vital roles in immune system, interleukin is one of them. Identify the origin of interleukin
A)
mitochondria
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B)
ribosome
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C)
ER
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D)
epithelial cells
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What is the cotyledon of maize embryo called?
A)
Coleoptile
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B)
Scutellum
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C)
Plumule
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D)
Coleomiza
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Among the following, which microorganism is photoautotrophic in nature
A)
Ferro bacillus
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B)
Beggiotoa
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C)
Nitro so monas and Nitro sococcus
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D)
Green-sulphur bacteria and purple bacteria
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Which of the following is not true about proteins?
A)
20 amino acids are used in synthesis of all proteins
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B)
Proteins are hetero polymers of amino acids
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C)
Cellulose is most abundant in biosphere
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D)
Proteins contain peptide bonds
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Calculate the number of Barr body in female having the genotype of \[2A+XXXX\]
A)
1
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B)
2
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C)
3
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D)
4
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Which of the following material is/are used in determining the age of a fossil? (1) Radioactive carbon (2) Uranium (3) Argon (4) Potassium
A)
(2) and (3)
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B)
(1) and (3)
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C)
all are used
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D)
(1) and (4)
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Which of the following area is popularly known as they lungs of Earth
A)
Tropics
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B)
Amazon Rainforest
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C)
Alpines
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D)
Himalayas
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Which of the following is not an unconditioned reflex?
A)
Corneal reflex
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B)
Knee jerk
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C)
Breast feeding
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D)
Riding a bicycle
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Nissi granules are found in nerve cell and identified as one of the following structure
A)
ribosome
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B)
rough ER
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C)
mitochondria
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D)
lysosome
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I. water hyacinth and water lily, the flowers emerge above the level of water and are pollinated by insects or wind. II. In Vallisneria, the female flower reach the surface of water by the long stalk and the male flowers or pollen grains are released on to the surface of water. They are carried passively by water currents.
A)
Statement I is true, II is false
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B)
Statement I is false, II is true
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C)
Both Statement I and Statement II are true
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D)
Both Statement I and Statement II are false
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How does frogs differ from humans?
A)
Frogs possess hepatic portal system
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B)
Frogs have nucleated acid blood RBCs
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C)
Frogs have thyroid gland
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D)
Frogs contain paired cerebral hemispheres
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Which of the following is responsible for amplification of signal in hormone action?
A)
\[{{P}_{1}}{{P}_{2}}\]
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B)
Insulin
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C)
\[I{{P}_{3}}\]
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D)
Sodium
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Which of the following bird lack on oil gland? I. Parrot II. Owl III. Kiwi IV. Ostrich
A)
I and II
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B)
IV and I
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C)
II and III
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D)
None of these
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Consider the following statements. I. Any deficiency of \[{{O}_{2}}\] stops the respiration of roots and causes accumulation of \[C{{O}_{2}}\] thus the protoplasm becomes viscous and the permeability of plasma membrane decreases. II. The absorption of water still occurs when concentration of outer soil water is more than root hair cell sap. III. Adhesion is the attraction between the molecules of the same substances. Which of the statements given above are correct?
A)
I and II
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B)
I and III
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C)
II and III
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D)
I, II and III
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Following is the diagram of TS of anther. Identify the parts labelled as A, B, C, D, E and F.
A)
A-Tapetum B-epidermis C-endothecium , D-Tapetum E-Sporogenous tissue F-Middle layers
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B)
A-Connective B-epidermis C-endothecium D-Sporogenous tissue E-Tapetum F-Middle layers
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C)
A-Tapetum B-epidermis C-endodermis D-Middle layers E-Tapetum F-Sporogenous tissue
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D)
A-Connective B-epidermis C-endodermis D-Sporogenous tissue E-Middle layers F-Tapetum
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Match the following columns.
Column I Column II A. Starch 1. N-acetyl glucosamine B. Glycogen 2. Fibrous homopolysaccharide C. Chitin 3. Mucilages D. Cellulose 4. Storage polysaccharide of plants
A)
A-3, B-5, C-2, D-4
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B)
A-2, B-2, C-5, D-3
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C)
A-4, B-5, C-1, D-2
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D)
A-4, B-5, C-1, D-2
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Instrument used for the study of arrangement of nucleotide in DNA is
A)
centrifuge
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B)
electron microscope
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C)
X ray crystallography
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D)
photo chromatography
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Egg activation during fertilisation is related to
A)
secreting hyaluronidase enzymes
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B)
preventing polyspermy
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C)
dissolving egg envelop
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D)
pH change of egg cytoplasm
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Choose the incorrect statement.
A)
Annelida - Enter o coelomate
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B)
Platyhelminthes - Acoelomate
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C)
Nemat helminthes - Pseudo coelomate
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D)
Arthropoda - Schizocoelomate
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Which of the following reptile is a Living fossil?
A)
Peripatus
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B)
Sphenodon
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C)
Archaeopteryx
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D)
Latimeria
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Match the following columns.
Column I Column II A. Green sulphur bacteria 1. Rhodospirillum B. Purple sulphur bacteria 2. Chlorobium C. Purple non-sulphur bacteria 3. Chromatium
A)
A-2, B-1, C-3
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B)
A-2, B-3, C-1
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C)
A-3, B-1, C-2
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D)
A-1, B-2, C-3
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Select the incorrect statement from the following.
A)
Galactosemia is an inborn error of metabolism
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B)
Small population size results in random genetic drift in a population
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C)
Baldness is a sex-limited trait
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D)
Linkage is an exception to the principle of independent assortment in heredity
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Which one of the statement given below is not correct?
A)
In the photosynthesis process P-II absorbs energy at or just below 680 mm
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B)
The pigment that is present in the pigment system I is \[{{P}_{683}}\]
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C)
P-II receives electrons from photolytic dissociation of water
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D)
P-I lies on the outer surface of thylakoid
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Among the following which microorganism respire anaerobically under normal conditions.
A)
Bacillus subtilis
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B)
Rho do pseudomonas
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C)
Archaebacteria
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D)
Thermus aquaticus
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Which among the following remains constant for given species?
A)
\[\operatorname{A}+C/T+G\]
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B)
\[\operatorname{G}+C/A+T~\]
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C)
\[\operatorname{A}+T/G+C\]
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D)
\[\operatorname{T}+C/G+A\]
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Identify the correct statement(s). I. Bony fishes use pectoral, pelvic, dorsal, anal and caudal fins in swimming. II. In torpedo, electric organs are used for defence. III. Gills and scales are characteristic of fishes. IV. Chondrichthyes possess bony endoskeleton.
A)
I and IV
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B)
IV and III
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C)
I and II
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D)
III and II
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Which one of the following statement is not correct?
A)
Hydrilla plant is used in an experiment commonly performed in laboratory in demonstrate evolution of \[{{O}_{2}}\] in photosynthesis
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B)
Cytochrome proteins serving as electron carriers in photosynthesis and other oxidative reduction reactions.
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C)
In angiosperms, synthesis of chlorophyll occurs in presence of light.
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D)
The plants growing in dark show yellowing in leaves and elongated internodes, this condition is called as dark effect.
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Which among the following type of DNA is present in bacterium E.coli?
A)
Double-stranded straight
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B)
Single-stranded straight
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C)
Double-stranded circular
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D)
Single-stranded circular
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Which animal is the symbol of World Wildlife Fund?
A)
Tiger
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B)
Giant Panda
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C)
Hornbill
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D)
White Bear
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A human male produces sperms with the genotypes AB, Ab, aB, and ab pertaining to two diallelic characters equal proportions. What is the corresponding genotype of this person?
A)
AaBB
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B)
AABb
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C)
AABB
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D)
AaBb
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Which one of the statements given below is not correct?
A)
The leaves of \[{{C}_{4}}\] plants have Kranz anatomy
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B)
In \[{{C}_{4}}-plants\], carbon dioxide is picked up by phosphoenol pyruvate and the reaction being catalysed by PEP carboxylase
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C)
Light reaction of photosynthesis occurs inside stroma
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D)
Sunken stomata are usually found in CAM plants
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Production of bio products from microbes involve the use of
A)
thermo cycler
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B)
fermenter
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C)
autoclave
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D)
micro projective
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The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently by
A)
administering adenosine deaminase activators
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B)
introducing bone marrow cells producing ADA into cells at early embryonic stages
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C)
enzyme replacement therapy
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D)
periodic infusion of genetically engineered lymphocytes having functional ADA CDNA
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In DNA of E. coli has \[20\,%\] bases of guanine. What will be fraction of thymine?
A)
30
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B)
3
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C)
15
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D)
5
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