question_answer 1) The dimensions of \[\frac{a}{b}\] in the equation P = \[\frac{a-{{t}^{2}}}{bx}\] where P is pressure, x is distance and t is time, are:
A)
\[\left[ {{M}^{2}}L{{T}^{-3}} \right]\]
done
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B)
\[\left[ M{{T}^{-2}} \right]\]
done
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C)
\[\left[ L{{T}^{-3}} \right]\]
done
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D)
\[\left[ M{{L}^{3}}{{T}^{-1}} \right]\]
done
clear
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question_answer 2) Three vectors satisfy the relation \[\overrightarrow{A}.\overrightarrow{B}=0\]and \[\overrightarrow{A}.\overrightarrow{C}=0,\]then A is parallel to:
A)
\[\overrightarrow{C}\]
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B)
\[\overrightarrow{B}\]
done
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C)
\[\overrightarrow{B}\times \overrightarrow{C}\]
done
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D)
\[\overrightarrow{B}.\overrightarrow{C}\]
done
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question_answer 3) A student is standing at a distance of 50 metre from the bus. As soon as the bus begins its motion with an acceleration of \[1\text{ }m{{s}^{-2}},\] the student starts running towards the bus with a uniform velocity u. Assuming the motion to be along a straight road, the minimum value of u, so that the student is able to catch the bus is:
A)
\[8m{{s}^{-1}}\]
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B)
\[5m{{s}^{-1}}\]
done
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C)
\[12m{{s}^{-1}}\]
done
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D)
\[10m{{s}^{-1}}\]
done
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question_answer 4) For a given velocity, a projectile has the same range R for two angles of projection if \[{{t}_{1}}\]and \[{{t}_{2}}\]are the time of flight in the two cases, then:
A)
\[{{t}_{1}}{{t}_{2}}\propto R\]
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B)
\[{{t}_{1}}{{t}_{2}}\propto {{R}^{2}}\]
done
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C)
\[{{t}_{1}}{{t}_{2}}\propto \frac{1}{{{R}^{2}}}\]
done
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D)
\[{{t}_{1}}{{t}_{2}}\propto \frac{1}{R}\]
done
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question_answer 5) Weight of a body of mass m decreases by 1% when it is raised to height h above the earths surface. If the body is taken to a depth h in a mine, change in its weight is:
A)
0.5% decrease
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B)
2% decrease
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C)
0.5% increase
done
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D)
1% increase
done
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question_answer 6)
The displacement time graph of a particle executing S.H.M. is as shown in the figure. The corresponding force-time graph of the particle 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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question_answer 7) Which of the following sets of concurrent forces maybe in equilibrium?
A)
\[{{F}_{1}}=3N,{{F}_{2}}=5N,{{F}_{3}}=1N\]
done
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B)
\[{{F}_{1}}=3N,{{F}_{2}}=5N,{{F}_{3}}=9N\]
done
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C)
\[{{F}_{1}}=3N,{{F}_{2}}=5N,{{F}_{1}}=6N\]
done
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D)
\[{{F}_{1}}=3N,{{F}_{2}}=5N,{{F}_{3}}=15N\]
done
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question_answer 8) Youngs modulus of perfectly rigid body material is:
A)
infinite
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B)
zero
done
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C)
\[10\times {{10}^{10}}N/{{m}^{2}}\]
done
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D)
\[1\times {{10}^{10}}N/{{m}^{2}}\]
done
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question_answer 9) An ideal monoatomic gas at \[27{}^\circ C\] is compressed adiabatically to 8/27 times of its present volume. The increase in temperature of the gas is:
A)
\[375{}^\circ C\]
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B)
\[402{}^\circ C\]
done
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C)
\[175{}^\circ C~\]
done
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D)
\[475{}^\circ C\]
done
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question_answer 10)
A sample of ideal monoatomic gas is taken round the cycle ABCA as shown in the figure. The work done during the cycle is:
A)
3 PV
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B)
zero
done
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C)
9 PV
done
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D)
6 PV
done
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question_answer 11) A bucket full of hot water is kept in a room. It cools from \[75{}^\circ C\] to \[70{}^\circ C\] in \[{{t}_{1}}\]minutes, from \[70{}^\circ C\] to \[65{}^\circ C\] in \[{{t}_{2}}\]minutes and from \[65{}^\circ C\]to \[60{}^\circ C\]in 13 minutes. Then:
A)
\[{{t}_{1}}<{{t}_{2}}<{{t}_{3}}\]
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B)
\[{{t}_{1}}={{t}_{2}}={{t}_{3}}\]
done
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C)
\[{{t}_{1}}<{{t}_{2}}>{{t}_{3}}\]
done
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D)
\[{{t}_{1}}>{{t}_{2}}>{{t}_{3}}\]
done
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question_answer 12) A fish, looking up through the water sees the outside world contained in a circular horizon. If the refractive index of water is \[4/3\] and the fish is 12 cm below the surface of water, the radius of the circle in centimetre is:
A)
\[\frac{12\times 3}{\sqrt{5}}\]
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B)
\[12\times 3\times \sqrt{5}\]
done
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C)
\[\frac{12\times 3}{\sqrt{7}}\]
done
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D)
\[12\times 3\times \sqrt{7}\]
done
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question_answer 13)
A given ray of light suffers minimum deviation in an equilateral prism P. Additional prisms Q and R of identical shape and material are now added to P, as shown in the figure. The ray will suffer:
A)
same deviation
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B)
greater deviation
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C)
total internal reflection
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D)
no deviation
done
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question_answer 14) The aperture of the objective lens of a telescope is made large so as to:
A)
increase the resolving power of the telescope
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B)
increase the magnifying power of the telescope
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C)
to focus on distant objects
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D)
make image aberration less
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question_answer 15) A lamp hanging 4 metres above the table is lowered by 1 metre. The illumination on the table:
A)
decreased by 25%
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B)
increased by 25%
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C)
decreased by 66.7%
done
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D)
increased by 77.7%
done
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question_answer 16) The equation of a transverse wave travelling along positive x axis with amplitude 0.2 m, velocity 360 m/sec and wavelength 60 m can be written as:
A)
\[y=0.2\sin \pi \left[ 6t+\frac{x}{60} \right]\]
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B)
\[y=0.2\sin \pi \left[ 6t-\frac{x}{60} \right]\]
done
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C)
\[y=0.2\sin 2\pi \left[ 6t-\frac{x}{60} \right]\]
done
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D)
\[y=0.2\sin 2\pi \left[ 6t+\frac{x}{60} \right]\]
done
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question_answer 17) If \[{{\upsilon }_{m}}\]is the velocity of sound in moist air, \[{{\upsilon }_{d}}\] is the velocity of sound in dry air, under identical conditions of pressure and temperature:
A)
\[{{\upsilon }_{m}}<{{\upsilon }_{d}}\]
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B)
\[{{\upsilon }_{m}}>{{\upsilon }_{d}}\]
done
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C)
\[{{\upsilon }_{m}}{{\upsilon }_{d}}=1\]
done
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D)
\[{{\upsilon }_{m}}={{\upsilon }_{d}}\]
done
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question_answer 18) If T is the reverberation time of an auditorium of volume V, then
A)
\[T\propto {{V}^{2}}\]
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B)
\[T\propto V\]
done
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C)
\[T\propto \frac{1}{V}\]
done
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D)
\[T\propto \frac{1}{{{V}^{2}}}\]
done
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question_answer 19) Two wires are fixed in a sonometer. Their tensions are in the ratio 8 : 1. The lengths are in the ratio 36 : 35. The diameters are -in the ratio 4 : 1. Densities of the materials are in the ratio 1 : 2. If the higher frequency in the setting is 360 Hz, the beat frequency when the two wires are sounded together, is:
A)
8
done
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B)
5
done
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C)
10
done
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D)
6
done
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question_answer 20) A sound source is moving towards stationary listener with \[\frac{1}{10}th\] of the speed of sound. The ratio of apparent to real frequency is:
A)
\[{{\left( \frac{9}{10} \right)}^{2}}\]
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B)
\[\frac{10}{9}\]
done
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C)
\[\frac{11}{10}\]
done
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D)
\[{{\left( \frac{11}{10} \right)}^{2}}\]
done
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question_answer 21) If v is the speed of sound in air then the shortest length of the closed pipe which resonates to a frequency n, is:
A)
\[\frac{v}{2n}\]
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B)
\[\frac{v}{4n}\]
done
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C)
\[\frac{4n}{v}\]
done
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D)
\[\frac{2n}{v}\]
done
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question_answer 22) Cavitation is a special application property exhibited only by:
A)
ultrasonics
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B)
electromagnetic waves
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C)
audible sound
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D)
infrasonics
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question_answer 23) In Youngs double slit experiment, the fringe width is P, If the entire arrangement is placed in a liquid of refractive index n, the fringe width becomes:
A)
\[n\beta \]
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B)
\[\frac{\beta }{n+1}\]
done
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C)
\[\frac{\beta }{n-1}\]
done
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D)
\[\frac{\beta }{n}\]
done
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question_answer 24) Yellow light is used in single slit diffraction experiment with slit width 0.6 mm. If yellow light is replaced by X-rays, then the pattern will reveal that:
A)
no diffraction pattern
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B)
that the central maxima narrower
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C)
less number of fringes
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D)
more number of fringes
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question_answer 25) In an interference experiment, third bright fringe is obtained at a point on the screen with a light of 700 run. What should be the wavelength of the light source in order to obtain 5th bright fringe at the same point?
A)
630 nm
done
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B)
500 nm
done
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C)
420 nm
done
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D)
750 nm
done
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question_answer 26) If a ray of light in a denser medium enters into a rarer medium at an angle of incidence i, the angle of reflection and refraction are respectively r and r. If the reflected and refracted rays are at right angles to each other, the critical angle for the given pair of media is:
A)
\[{{\sin }^{-1}}\left( \tan r \right)\]
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B)
\[{{\sin }^{-1}}\left( \tan r \right)\]
done
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C)
\[{{\tan }^{-1}}\left( \sin i \right)\]
done
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D)
cot (tan i)
done
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question_answer 27) Waves that cannot be polarised are:
A)
electromagnetic waves
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B)
light waves
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C)
longitudinal waves
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D)
transverse waves
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question_answer 28) The phenomenon of rotation of plane of plane polarized light is called:
A)
Kerr effect
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B)
double refraction
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C)
optical activity
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D)
dichroism
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question_answer 29) As a result of interference of two coherent sources of light energy is:
A)
redistributed and the distribution does not very with time
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B)
increased
done
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C)
redistributed and that distribution changes with time
done
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D)
decreased
done
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question_answer 30) There are n1 photons of frequency v1 in a beam of light. In an equally energetic beam there are n2 photons of frequency v2. Then the correct relation:
A)
\[\frac{{{n}_{1}}}{{{n}_{2}}}=\frac{{{v}_{1}}}{{{v}_{2}}}\]
done
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B)
\[\frac{{{n}_{1}}}{{{n}_{2}}}=1\]
done
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C)
\[\frac{{{n}_{1}}}{{{n}_{2}}}=\frac{{{v}_{2}}}{{{v}_{1}}}\]
done
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D)
\[\frac{{{n}_{1}}}{{{n}_{2}}}=\frac{{{v}_{2}}^{2}}{{{v}_{1}}^{2}}\]
done
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question_answer 31) A charge q is placed at the centre of the line joining two equal point charges each equal to Q. The system of 3 charges will be in equilibrium if q is equal to:
A)
+ Q / 4
done
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B)
- Q / 2
done
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C)
+ Q / 2
done
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D)
- Q / 4
done
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question_answer 32) The inward and outward electric flux from a closed surface are respectively \[8\times {{10}^{3}}\]and \[4\times {{10}^{3}}\] units. Then the net charge inside the closed surface is:
A)
\[-4\times {{10}^{3}}\]coulomb
done
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B)
\[4\times {{10}^{3}}\]coulomb
done
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C)
\[\frac{-4\times {{10}^{3}}}{{{\varepsilon }_{0}}}\] coulomb
done
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D)
\[-\text{ }4\times {{10}^{3}}{{\varepsilon }_{0}}\]coulomb
done
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question_answer 33)
In the circuit as shown in the figure, the effective capacitance between A and B is:
A)
2\[\mu \]F
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B)
2\[\mu \]F
done
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C)
8\[\mu \]F
done
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D)
4\[\mu \]F
done
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question_answer 34) Capacitance of a parallel plate capacitor becomes \[\frac{4}{3}\]times its original value, if a dielectric slab of thickness t = d/2 is inserted between the plates [d is the separation between the plates]. The dielectric constant of the slab is:
A)
4
done
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B)
8
done
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C)
2
done
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D)
6
done
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question_answer 35) A charged particle of mass m and charge q is released from rest in an uniform electric field E neglecting the effect of gravity, the kinetic energy of the charged particle after t second is:
A)
\[\frac{2{{E}^{2}}{{t}^{2}}}{mq}\]
done
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B)
\[\frac{E{{q}^{2}}m}{2{{t}^{2}}}\]
done
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C)
\[\frac{Eqm}{t}\]
done
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D)
\[\frac{{{E}^{2}}{{q}^{2}}{{t}^{2}}}{2m}\]
done
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question_answer 36) Two wires of the same dimensions but resistivities \[{{\rho }_{1}}\,and\,{{\rho }_{2}}\] are connected in series. The equivalent resistivity of the combination is:
A)
\[\frac{{{\rho }_{1}}+{{\rho }_{2}}}{2}\]
done
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B)
\[{{\rho }_{1}}+{{\rho }_{2}}\]
done
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C)
\[2\left( {{\rho }_{1}}+{{\rho }_{2}} \right)\]
done
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D)
\[\sqrt{{{\rho }_{1}}{{\rho }_{2}}}\]
done
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question_answer 37) If a 30V, 90W bulb is to be worked in 120V line, the resistance to be connected in series with the bulb is:
A)
20 \[\Omega \]
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B)
10 \[\Omega \]
done
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C)
40 \[\Omega \]
done
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D)
30 \[\Omega \]
done
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question_answer 38) The potential difference between the terminals of a cell in open circuit is 2.2 volt with resistance of 5 ohm across the terminals of a cell , the terminal potential difference is 1.8 volt. The internal resistance of the cell is:
A)
\[\frac{9}{10}ohm\]
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B)
\[\frac{10}{9}ohm\]
done
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C)
\[\frac{7}{12}ohm\]
done
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D)
\[\frac{12}{7}ohm\]
done
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question_answer 39)
Thirteen resistances each of resistance R ohm are connected in the circuit as shown in the figure. The effective resistance between A and B is:
A)
\[\frac{4R}{3}\Omega \]
done
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B)
\[2R\,\Omega \]
done
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C)
\[R\,\Omega \]
done
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D)
\[\frac{2R}{3}\,\Omega \]
done
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question_answer 40)
A group of N cells whose emf varies directly with the internal resistance as per the equation EN = 1.5 rN are connected as shown in the figure above. The current J in the circuit is:
A)
5.1 A
done
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B)
0.51 A
done
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C)
1.5 A
done
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D)
0.15 A
done
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question_answer 41) The temperature coefficient of resistance of a wire is \[0.00125/{}^\circ C\]. Its resistance is 1 ohm at 300 K. Its resistance will be 2 ohm at:
A)
1127 K
done
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B)
1400 K
done
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C)
1154 K
done
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D)
1100 K
done
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question_answer 42) A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is 10 ohm- metre and the current passing through it is 0.1 ampere, cross-section of the wire is 10 m. The potential gradient along the potentiometer wire is:
A)
\[{{10}^{-6}}V/m\]
done
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B)
\[{{10}^{-4}}V/m\]
done
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C)
\[{{10}^{-8}}V/m\]
done
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D)
\[{{10}^{-2}}V/m\]
done
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question_answer 43) A fuse wire with radius 1 mm blows at 1.5 ampere. The radius of the fuse wire of the same material to blow at 3A will be:
A)
\[{{3}^{1/4}}mm\]
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B)
\[{{4}^{1/3}}mm\]
done
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C)
\[{{3}^{1/2}}mm\]
done
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D)
\[{{2}^{1/3}}mm\]
done
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question_answer 44) A wire in the form of a circular loop of one turn carrying a current produces a magnetic field B at the centre. If the same wire is looped into a coil of two turns and carries the same current, the new value of magnetic induction at the centre is:
A)
3B
done
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B)
56
done
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C)
4B
done
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D)
2B
done
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question_answer 45) To send 10% of the main current through a moving coil galvanometer of resistance 99 ohm, the shunt required is:
A)
10 ohm
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B)
9.9 ohm
done
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C)
9 ohm
done
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D)
11 ohm
done
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question_answer 46) The magnetic flux linked with a coil at any instant t is given by \[\phi =5{{t}^{3}}-100t+300,\]the emf induced in the coil at t = 2 second is:
A)
40 V
done
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B)
-40 V
done
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C)
300 V
done
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D)
140 V
done
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question_answer 47)
A charged particles moves along the line AB, which lies in the same plane of a circular loop of conducting wire as shown in the figure. Then:
A)
no current will be induced in the loop
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B)
the current induced in the loop will change its direction as the charged particle passes by
done
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C)
the current induced will be anticlockwise
done
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D)
the current induced, will be clockwise
done
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question_answer 48) The time taken by A.C. of 50 Hz in reaching from zero to the maximum value is:
A)
\[50\times {{10}^{-3}}sec\]
done
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B)
\[5\times {{10}^{-3}}sec\]
done
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C)
\[1\times {{10}^{-3}}sec\]
done
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D)
\[2\times {{10}^{-3}}sec\]
done
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question_answer 49) The ratio of the secondary to the primary turns in a transformer is 3 : 2 and the output power is P. Neglecting all power losses, the input power must be:
A)
F/2
done
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B)
P
done
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C)
2P/3
done
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D)
3P/2
done
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question_answer 50) The material used for permanent magnet has:
A)
low retentivity, high coercivity
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B)
high retentivity, low coercivity
done
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C)
high retentivity, high coercivity
done
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D)
low retentivity, low coercivity
done
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question_answer 51) A particle of mass M at rest decays into two masses \[{{m}_{1}}\]and \[{{m}_{2}}\]with non zero velocities. The ratio of de-Broglie wavelengths of the particles \[\frac{{{\lambda }_{1}}}{{{\lambda }_{2}}}\]is:
A)
\[\frac{{{m}_{2}}}{{{m}_{1}}}\]
done
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B)
\[\frac{{{m}_{1}}}{{{m}_{2}}}\]
done
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C)
\[\frac{\sqrt{{{m}_{1}}}}{\sqrt{{{m}_{2}}}}\]
done
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D)
1 : 1
done
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question_answer 52) For an electron in the second orbit of Bohrs hydrogen atom, the moment of linear momentum is:
A)
\[\pi h\]
done
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B)
\[2\pi h\]
done
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C)
\[\frac{h}{\pi }\]
done
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D)
\[\frac{2h}{\pi }\]
done
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question_answer 53) If elements with principal quantum number n > 4 were not allowed in nature, the number of possible elements would have been:
A)
32
done
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B)
60
done
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C)
64
done
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D)
4
done
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question_answer 54) In photoelectric effect, the number of electrons ejected per second is:
A)
proportional to the wavelength of light
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B)
proportional to the intensity of light
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C)
proportional to the work function of the metal
done
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D)
proportional to the frequency of light
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question_answer 55) Half life of a radioactive substance is 20 minutes. The time between 20% and 80% decay will be:
A)
40 minutes
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B)
20 minutes
done
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C)
25 minutes
done
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D)
30 minutes
done
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question_answer 56) A hypothetical radioactive nucleus decays according to the following series \[_{72}{{A}^{180}}\xrightarrow{\alpha }{{A}_{1}}\xrightarrow{{{\beta }^{-}}}{{A}_{2}}\xrightarrow{\alpha }{{A}_{3}}\xrightarrow{\gamma }{{A}_{4}}\] If the mass number and atomic number of A are respectively 180 and 72. Then the atomic number and mass number of A will respectively be:
A)
69, 171
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B)
70, 172
done
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C)
68, 172
done
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D)
69, 172
done
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question_answer 57) Nucleus A is converted into C through the following reactions: \[A\xrightarrow[{}]{{}}B+\alpha \] [\[\alpha \]- alpha particle \[B\xrightarrow[{}]{{}}C+2\beta \] \[\beta \]- electron] then:
A)
A and B are isotopes
done
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B)
A and C are isobars
done
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C)
A and B are isobars
done
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D)
A and C are isotopes
done
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question_answer 58) If \[m,\text{ }{{m}_{n}}\]and \[{{m}_{p}}\]are the masses of \[_{Z}{{X}^{A}}\]nucleus, neutron and proton respectively:
A)
\[m=(A-Z){{m}_{n}}+Z{{m}_{p}}\]
done
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B)
\[m<(A-Z){{m}_{n}}+Z{{m}_{p}}\]
done
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C)
\[m>(A-Z){{m}_{n}}+Z{{m}_{p}}\]
done
clear
D)
\[m=(A-Z){{m}_{p}}+Z{{m}_{n}}\]
done
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question_answer 59) The electrical circuit used to get smooth D.C output from a rectifier circuit is called:
A)
filter
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B)
oscillator
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C)
logic gates
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D)
amplifier
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question_answer 60) In the case of constants a and p of a transistor:
A)
\[\alpha =\beta \]
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B)
\[\beta <1,\alpha >1\]
done
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C)
\[\alpha \beta =1\]
done
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D)
\[\beta >1,\alpha <1\]
done
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question_answer 61) A colourless crystalline salt x is soluble in dilute \[HCl\]. On adding \[NaOH\] solution, it gives a white precipitate which is insoluble in excess of \[NaOH\]. x is:
A)
\[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\]
done
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B)
\[ZnS{{O}_{4}}\]
done
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C)
\[MgS{{O}_{4}}\]
done
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D)
\[SnC{{l}_{2}}\]
done
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question_answer 62) Which metal is used to make alloy steel for armour plates, safes and helmets?
A)
\[Al\]
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B)
\[Mn\]
done
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C)
\[Cr\]
done
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D)
\[Pb\]
done
clear
View Answer play_arrow
question_answer 63) lodoform test is not answered by:
A)
\[{{C}_{2}}{{H}_{5}}OH\]
done
clear
B)
\[C{{H}_{3}}OH\]
done
clear
C)
\[C{{H}_{3}}COC{{H}_{3}}\]
done
clear
D)
\[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{3}}\]
done
clear
View Answer play_arrow
question_answer 64) A gaseous carbon compound is soluble in dilute \[HCl\]. The solution on treating with NaN02 gives off nitrogen leaving behind a solution which smells of wood spirit. The carbon compound is:
A)
\[HCHO\]
done
clear
B)
\[CO\]
done
clear
C)
\[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\]
done
clear
D)
\[C{{H}_{3}}N{{H}_{2}}\]
done
clear
View Answer play_arrow
question_answer 65) Which of the following statements is incorrect regarding benzyl chloride?
A)
It gives white precipitate with alcoholic \[AgN{{O}_{3}}\]
done
clear
B)
It is an aromatic compound with substitution in the side chain
done
clear
C)
It undergoes nucleophilic substitution reaction
done
clear
D)
It is less reactive than vinyl chloride
done
clear
View Answer play_arrow
question_answer 66) Enthalpy of formation of \[HF\] and \[HCl\] are \[-161kJ\]and \[-92kJ\]respectively which of the following statements is incorrect?
A)
\[HCl\] is more stable than HP
done
clear
B)
\[HF\] and \[HCl\] are exothermic compounds
done
clear
C)
The affinity of fluorine to hydrogen is greater than the affinity of chlorine to hydrogen
done
clear
D)
\[HF\] is more stable than \[HCl\]
done
clear
View Answer play_arrow
question_answer 67) Heat liberated with \[100ml\]of \[1N\text{ }NaOH\]is neutralised by \[300ml\]of IN \[HCl\]:
A)
\[11.56kJ\]
done
clear
B)
\[5.73kJ\]
done
clear
C)
\[22.92kJ\]
done
clear
D)
\[17.19kJ\]
done
clear
View Answer play_arrow
question_answer 68) For a reaction \[A+B\xrightarrow{{}}C+D,\], if concentration of A is doubled without altering that of B, rate doubles. If concentration of B is increased nine times without altering that of A, rate triples. Order of the reaction is:
A)
\[2\]
done
clear
B)
\[1\]
done
clear
C)
\[1\frac{1}{2}\]
done
clear
D)
\[1\frac{1}{3}\]
done
clear
View Answer play_arrow
question_answer 69) In Goldschmidt aluminothermic process, thermite contains:
A)
3 parts of \[A{{l}_{2}}{{O}_{3}}\]and 4 parts of \[Al\].
done
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B)
3 parts of \[F{{e}_{2}}{{O}_{3}}\]and 2 parts of \[Al\]
done
clear
C)
3 parts of \[F{{e}_{2}}{{O}_{3}}\] and 1 part of \[Al\]
done
clear
D)
1 part of \[F{{e}_{2}}{{O}_{3}}\] and 1 part of \[Al\]
done
clear
View Answer play_arrow
question_answer 70) The structure of orthophosphoric acid is:
A)
\[H-O-\underset{H}{\mathop{\overset{O}{\mathop{\overset{\uparrow }{\mathop{\underset{|}{\mathop{\underset{O}{\mathop{\underset{|}{\mathop{P}}\,}}\,}}\,}}\,}}\,}}\,-O-H\]
done
clear
B)
\[O\leftarrow \underset{H}{\mathop{\overset{H}{\mathop{\overset{|}{\mathop{\underset{\begin{smallmatrix} | \\ O \\ | \end{smallmatrix}}{\mathop{P}}\,}}\,}}\,}}\,-O-H\]
done
clear
C)
\[O\leftarrow \underset{H}{\mathop{\overset{H}{\mathop{\overset{|}{\mathop{\underset{|}{\mathop{P}}\,}}\,}}\,}}\,-O-H\]
done
clear
D)
\[H-\overset{O}{\mathop{\overset{|}{\mathop{OP}}\,}}\,=O\]
done
clear
View Answer play_arrow
question_answer 71) A galvanic cell is constructed using the redox reaction,\[\frac{1}{2}{{H}_{2}}(g)+AgCl(s){{H}^{+}}(aq)+C{{l}^{-}}(aq)+Ag(s)\] it is represented as:
A)
\[Pt|{{H}_{2}}(g)|HCl(sol.n)||AgN{{O}_{3}}(sol.n)|Ag\]
done
clear
B)
\[Ag|AgCl(s)|KCl(sol.n)|HCl(sol.n),{{H}_{2}}(g)Pt\]
done
clear
C)
\[Pt|{{H}_{2}}(g)|KCl(sol.n)||AgCl(s)|Ag\]
done
clear
D)
\[Pt|{{H}_{2}}(g),HCl(sol.n)||AgCl(s)|Ag\]
done
clear
View Answer play_arrow
question_answer 72) Same amount of electric current is passed through solutions of \[AgN{{O}_{3}}\] and \[HCl\], If 1.08 g of silver is obtained in the first case, the amount of hydrogen liberated at S.T.P. in the second case is:
A)
\[224c{{m}^{3}}\]
done
clear
B)
\[1.008g\]
done
clear
C)
\[112c{{m}^{3}}\]
done
clear
D)
\[22400c{{m}^{3}}\]
done
clear
View Answer play_arrow
question_answer 73) The flame colours of metal ions are due to:
A)
Frenkel defect
done
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B)
Schottky defect
done
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C)
Metal deficiency defect
done
clear
D)
Metal excess defect
done
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View Answer play_arrow
question_answer 74) The order of reactivities of methyl halides in the formation of Grignard reagent is:
A)
\[C{{H}_{3}}I<C{{H}_{3}}Br>C{{H}_{3}}Cl\]
done
clear
B)
\[C{{H}_{3}}Cl>C{{H}_{3}}Br>C{{H}_{3}}I\]
done
clear
C)
\[C{{H}_{3}}Br>C{{H}_{3}}Cl>C{{H}_{3}}I\]
done
clear
D)
\[C{{H}_{3}}Br>C{{H}_{3}}I>C{{H}_{3}}Cl\]
done
clear
View Answer play_arrow
question_answer 75) The reaction of an organic compound with ammonia followed by nitration of the product gives a powerful explosive, called RDX. The organic compound is:
A)
phenol
done
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B)
toluene
done
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C)
glycerine
done
clear
D)
formaldehyde
done
clear
View Answer play_arrow
question_answer 76) A signature, written in carbon pencil weighs 1 mg. What is the number of carbon atoms present in the signature?
A)
\[5.02\times {{10}^{23}}\]
done
clear
B)
\[5.02\times {{10}^{20}}\]
done
clear
C)
\[6.02\times {{10}^{20}}\]
done
clear
D)
\[0.502\times {{10}^{20}}\]
done
clear
View Answer play_arrow
question_answer 77) \[N{{H}_{3}}\] and \[HCl\] gas are introduced simultaneously from the two ends of a long tube. A white ring of \[N{{H}_{4}}Cl\] appears first:
A)
nearer to the \[HCl\] end
done
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B)
at the centre of the tube
done
clear
C)
throughout the tube
done
clear
D)
nearer to the \[N{{H}_{3}}\] end
done
clear
View Answer play_arrow
question_answer 78) A gas formed by the action of alcoholic \[KOH\]on ethyl iodide, decolourises alkaline \[KMn{{O}_{4}}\]. The gas is:
A)
\[{{C}_{2}}{{H}_{6}}\]
done
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B)
\[C{{H}_{4}}\]
done
clear
C)
\[{{C}_{2}}{{H}_{2}}\]
done
clear
D)
\[{{C}_{2}}{{H}_{4}}\]
done
clear
View Answer play_arrow
question_answer 79) Which of the following is not a characteristic of chemisorption?
A)
\[\Delta H\] is of the order of 400 kJ
done
clear
B)
Adsorption is irreversible
done
clear
C)
Adsorption may be multimolecular layer
done
clear
D)
Adsorption is specific
done
clear
View Answer play_arrow
question_answer 80) The concentration of electrolyte required to coagulate a given amount of \[A{{s}_{2}}{{S}_{3}}\] sol. is minimum in the case of:
A)
magnesium nitrate
done
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B)
potassium nitrate
done
clear
C)
potassium sulphate
done
clear
D)
Aluminium nitrate
done
clear
View Answer play_arrow
question_answer 81) Identify the organic compound which, on heating with strong solution of \[NaOH\], partly converted into an acid salt and partly into alcohol:
A)
Benzyl alcohol
done
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B)
Acetaldehyde
done
clear
C)
Acetone
done
clear
D)
Benzaldehyde
done
clear
View Answer play_arrow
question_answer 82) The process by which synthesis of protein takes place based on the genetic information present in m-RNA is called:
A)
translation
done
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B)
transcription
done
clear
C)
replication
done
clear
D)
messenger hypothesis
done
clear
View Answer play_arrow
question_answer 83) The enthalpies of formation of \[A{{l}_{2}}{{O}_{3}}\] and \[C{{r}_{2}}{{O}_{3}}\] are \[-1596kJ\]and \[-1134kJ\] respectively. \[\Delta H\] for the reaction, \[2Al+C{{r}_{2}}{{O}_{3}}\xrightarrow{{}}2Cr+A{{l}_{2}}{{O}_{3}}\] is:
A)
\[-2730kJ\]
done
clear
B)
\[-462kJ\]
done
clear
C)
\[-1365kJ\]
done
clear
D)
\[+2730kJ\]
done
clear
View Answer play_arrow
question_answer 84) The gaseous reaction \[A+B\rightleftharpoons 2C+D+Q\] is most favoured at:
A)
low temperature and high pressure
done
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B)
high temperature and high pressure
done
clear
C)
high temperature and low pressure
done
clear
D)
low temperature and low pressure
done
clear
View Answer play_arrow
question_answer 85) Temperature coefficient of a reaction is 2. When temperature is increased from \[{{30}^{o}}C\]to \[{{100}^{o}}C\], rate of the reaction increases by:
A)
128 times
done
clear
B)
100 times
done
clear
C)
500 times
done
clear
D)
250 times
done
clear
View Answer play_arrow
question_answer 86) The volume of water to be added to \[\frac{N}{2}HCl\]to prepare \[500c{{m}^{3}}\]of solution \[\frac{N}{10}\]is:
A)
\[450c{{m}^{3}}\]
done
clear
B)
\[100c{{m}^{3}}\]
done
clear
C)
\[45c{{m}^{3}}\]
done
clear
D)
\[400c{{m}^{3}}\]
done
clear
View Answer play_arrow
question_answer 87) The equivalent weight of a certain trivalent element is 20. Molecular weight of its oxide is:
A)
\[152\]
done
clear
B)
\[56\]
done
clear
C)
\[168\]
done
clear
D)
\[68\]
done
clear
View Answer play_arrow
question_answer 88) Identify the reaction that doesnt take place during the smelting process of copper extraction:
A)
\[2FeS+3{{O}_{2}}\xrightarrow{{}}2FeO+2S{{O}_{2}}\uparrow \]
done
clear
B)
\[C{{u}_{2}}O+FeS\xrightarrow{{}}C{{u}_{2}}S+FeO\]
done
clear
C)
\[2C{{u}_{2}}S+3{{O}_{2}}\xrightarrow{{}}2C{{u}_{2}}O+2S{{O}_{2}}\uparrow \]
done
clear
D)
\[FeO+Si{{O}_{2}}\xrightarrow{{}}FeSi{{O}_{3}}\]
done
clear
View Answer play_arrow
question_answer 89) Pick out the complex compound in which the central metal atom obeys BAN rule strictly:
A)
\[{{K}_{4}}[Fe{{(CN)}_{6}}]\]
done
clear
B)
\[{{K}_{3}}[Fe{{(CN)}_{6}}]\]
done
clear
C)
\[[Cr{{({{H}_{2}}O)}_{6}}]C{{l}_{3}}\]
done
clear
D)
\[[Cu{{(N{{H}_{3}})}_{4}}]S{{O}_{4}}\]
done
clear
View Answer play_arrow
question_answer 90) In a reversible reaction, the catalyst :
A)
increases the activation energy of the backward reaction
done
clear
B)
increases the activation energy of the forward reaction
done
clear
C)
decreases the activation energy of both, forward and backward reaction
done
clear
D)
decreases the activation energy of forward reaction
done
clear
View Answer play_arrow
question_answer 91) Solubility product of a salt AB is \[1\times {{10}^{-8}}\] in a solution in which concentration of A is \[{{10}^{-3}}M\]. The salt will precipitate when the concentration of B becomes more than:
A)
\[{{10}^{-4}}M\]
done
clear
B)
\[{{10}^{-7}}M\]
done
clear
C)
\[{{10}^{-6}}M\]
done
clear
D)
\[{{10}^{-5}}M\]
done
clear
View Answer play_arrow
question_answer 92) The standard reduction potentials of \[Zn\] an\[Ag\] in water at 298 K are, \[Z{{n}^{+2}}+2{{e}^{-}}Zn;\] \[{{E}^{o}}=-0.76V\] and \[A{{g}^{+}}+{{e}^{-}}Ag;\] \[{{E}^{o}}=+0.80V\]. Which of the following reactions take place?
A)
\[Z{{n}^{+2}}(aq)+2Ag(s)\xrightarrow{{}}2A{{g}^{+}}(aq)+Zn(s)\]
done
clear
B)
\[Zn(s)+2A{{g}^{+}}(aq)\xrightarrow{{}}Z{{n}^{+2}}(aq)+2Ag(s)\]
done
clear
C)
\[Z{{n}^{+2}}(aq)+A{{g}^{+}}(aq)\xrightarrow{{}}Zn(s)+Ag(s)\]
done
clear
D)
\[Zn(s)+Ag(s)\xrightarrow{{}}Z{{n}^{+2}}(aq)+A{{g}^{+}}(aq)\]
done
clear
View Answer play_arrow
question_answer 93) The ratio of cationic radius to anionic radius in an ionic crystal is greater than\[0.732\]. Its co-ordination number is:
A)
\[6\]
done
clear
B)
\[8\]
done
clear
C)
\[1\]
done
clear
D)
\[4\]
done
clear
View Answer play_arrow
question_answer 94) Dacron is obtained by the condensation polymerisation of:
A)
Dimethyl terephthalate and ethylene glycol
done
clear
B)
Terephthalic acid and formaldehyde
done
clear
C)
Phenol and phthalic acid
done
clear
D)
Phenol and formaldehyde
done
clear
View Answer play_arrow
question_answer 95) 4-chloro-3, 5-dimethyl phenol is called :
A)
Chloramphenicol
done
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B)
Paracetamol
done
clear
C)
Barbital
done
clear
D)
Dettol
done
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View Answer play_arrow
question_answer 96) The percentage s-character of the hybrid orbitals in methane, ethene and ethyne are respectively:
A)
\[25,33,50\]
done
clear
B)
\[25,50,75\]
done
clear
C)
\[50,75,100\]
done
clear
D)
\[10,20,40\]
done
clear
View Answer play_arrow
question_answer 97) In the manufacture of sulphuric acid by contact process, Tyndall box is used to:
A)
filter dust particles
done
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B)
remove impurities
done
clear
C)
convert \[S{{O}_{2}}\] to \[S{{O}_{3}}\]
done
clear
D)
test the presence of dust particles
done
clear
View Answer play_arrow
question_answer 98) The pH value of gastric juice in human stomach is about 1.8 and in the small intestine it is about 7.8. The \[_{p}{{K}_{a}}\] value of aspirin is 3.5. Aspirin will be
A)
completely ionised in the small intestine and in the stomach
done
clear
B)
unionised in the small intestine and in the stomach
done
clear
C)
ionised in the small intestine and almost unionised in the stomach
done
clear
D)
ionised in the stomach and almost unionised in the small intestine
done
clear
View Answer play_arrow
question_answer 99) The number of \[\alpha \] and \[\beta \]particles emitted during the transformation of \[_{90}T{{h}^{232}}\]to \[_{82}P{{b}^{208}}\]are respectively:
A)
\[4,2\]
done
clear
B)
\[2,2\]
done
clear
C)
\[8,6\]
done
clear
D)
\[6,4\]
done
clear
View Answer play_arrow
question_answer 100) When chlorine is passed through warm benzene in presence of the sunlight, the product obtained is
A)
Benzotrichloride
done
clear
B)
Chlorobenzene
done
clear
C)
Gammexane
done
clear
D)
DDT
done
clear
View Answer play_arrow
question_answer 101) Ethyl benzoate reacts with \[PC{{l}_{5}}\] to give:
A)
\[{{C}_{2}}{{H}_{5}}Cl+{{C}_{6}}{{H}_{5}}COCl+POC{{l}_{3}}+HCl\]
done
clear
B)
\[{{C}_{2}}{{H}_{5}}Cl+{{C}_{6}}{{H}_{5}}COCl+POC{{l}_{3}}\]
done
clear
C)
\[C{{H}_{3}}COCl+{{C}_{6}}{{H}_{5}}COCl+POC{{l}_{3}}\]
done
clear
D)
\[{{C}_{2}}{{H}_{5}}Cl+{{C}_{6}}{{H}_{5}}COOH+POC{{l}_{5}}\]
done
clear
View Answer play_arrow
question_answer 102) Pick out the statement which is not relevant in the discussion of colloids:
A)
Sodium aluminum silicate is used in the softening of hard water
done
clear
B)
Potash alum is used in shaving rounds and as a styptic in medicine
done
clear
C)
Artificial rain is caused by throwing electrified sand on the clouds from an aeroplane
done
clear
D)
Deltas are formed at a place where the river pours its water into the sea
done
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View Answer play_arrow
question_answer 103) A wooden box excavated from Indus valley had an activity of \[1.18\times {{10}^{13}}\] disintegration per minute per gm. Of carbon. What is the approximate age of this civilisation?
A)
\[4000years\]
done
clear
B)
\[5700years\]
done
clear
C)
\[8100years\]
done
clear
D)
\[6000years\]
done
clear
View Answer play_arrow
question_answer 104) For a reaction if \[{{K}_{p}}>{{K}_{c}}\], the forward reaction is favoured by:
A)
low pressure
done
clear
B)
high pressure
done
clear
C)
high temperature
done
clear
D)
low temperature
done
clear
View Answer play_arrow
question_answer 105) In a lime kiln, to get higher yield of \[C{{O}_{2}}\], the measure that can be taken is:
A)
to remove \[CaO\]
done
clear
B)
to add more \[CaC{{O}_{3}}\]
done
clear
C)
to maintain high temperature
done
clear
D)
to pump out \[C{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 106) What is the volume of 20 volume \[{{H}_{2}}{{O}_{2}}\] required to get 5000 cm of oxygen at S.T.P?
A)
\[250c{{m}^{3}}\]
done
clear
B)
\[50c{{m}^{3}}\]
done
clear
C)
\[100c{{m}^{3}}\]
done
clear
D)
\[125c{{m}^{3}}\]
done
clear
View Answer play_arrow
question_answer 107) The IUPAC name of \[{{(C{{H}_{3}})}_{3}}C-CH=C{{H}_{2}}\]is :
A)
1, 1, l-trimethyl-2-propene
done
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B)
3, 3, 3-trimethyl-2-propene
done
clear
C)
2, 2-dimethyl-3-butene
done
clear
D)
3, 3-dimethyl-l-butene
done
clear
View Answer play_arrow
question_answer 108) Railway wagon axles are made by heating iron rods embedded in charcoal powder. This process is known as:
A)
Tempering
done
clear
B)
Case hardening
done
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C)
Sherardising
done
clear
D)
Annealing
done
clear
View Answer play_arrow
question_answer 109) Thomas slag is ...
A)
\[CaSi{{O}_{3}}\]
done
clear
B)
\[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}\]
done
clear
C)
\[MnSi{{O}_{3}}\]
done
clear
D)
\[CaC{{O}_{3}}\]
done
clear
View Answer play_arrow
question_answer 110) Urea is preferred to ammonium sulphate as a nitrogenous fertilizer because:
A)
it is more soluble in water
done
clear
B)
it is cheaper than ammonium sulphate
done
clear
C)
it is quite stable
done
clear
D)
it does not cause acidity in the soil
done
clear
View Answer play_arrow
question_answer 111) Two gas cylinders having same capacity have been filled with 44 g of \[{{H}_{2}}\] and 44 g of \[C{{O}_{2}}\] respectively. If the pressure in \[C{{O}_{2}}\] cylinder is 1 atmosphere at a particular temperature, the pressure in the hydrogen cylinder at the same temperature is:
A)
2 atmosphere
done
clear
B)
1 atmosphere
done
clear
C)
22 atmosphere
done
clear
D)
44 atmosphere
done
clear
View Answer play_arrow
question_answer 112) Angular momentum of an electron in the nth orbit of hydrogen atom is given by:
A)
\[\frac{nh}{2\pi }\]
done
clear
B)
\[nh\]
done
clear
C)
\[\frac{2\pi }{nh}\]
done
clear
D)
\[\frac{\pi }{2nh}\]
done
clear
View Answer play_arrow
question_answer 113) The element with atomic number 36 belongs to ......... block in the periodic table:
A)
\[p\]
done
clear
B)
\[s\]
done
clear
C)
\[f\]
done
clear
D)
\[d\]
done
clear
View Answer play_arrow
question_answer 114) The function of \[AlC{{l}_{3}}\] in Friedel-Crafts reaction is:
A)
to absorb \[HCl\]
done
clear
B)
to absorb water
done
clear
C)
to produce nucleophile
done
clear
D)
to produce electrophile
done
clear
View Answer play_arrow
question_answer 115) An important reaction of acetone is auto condensation in presence of , concentrated sulphuric acid to give the aromatic compound......
A)
mesitylene
done
clear
B)
mesityl oxide
done
clear
C)
trioxan
done
clear
D)
phorone
done
clear
View Answer play_arrow
question_answer 116) Kinetic energy of one mole of an ideal gas at 300 K in kJ is:
A)
\[3.74\]
done
clear
B)
\[348\]
done
clear
C)
\[34.8\]
done
clear
D)
\[3.48\]
done
clear
View Answer play_arrow
question_answer 117) The tripe tide hormone present in most living cells is:
A)
glutathione
done
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B)
glutamine
done
clear
C)
oxytocin
done
clear
D)
ptyalin
done
clear
View Answer play_arrow
question_answer 118) Phenol \[\xrightarrow{NaN{{O}_{2}}|{{H}_{2}}S{{O}_{4}}}B\xrightarrow{{{H}_{2}}O}C\xrightarrow{NaOH}D\] name of the reaction is:
A)
Liebermanns reaction
done
clear
B)
Phthalein fusion test
done
clear
C)
Reimer Tiemann reaction
done
clear
D)
Schotten-Baumann reaction
done
clear
View Answer play_arrow
question_answer 119) Energy is stored in our body in the form of:
A)
ATP
done
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B)
ADP
done
clear
C)
Fats
done
clear
D)
Carbohydrates
done
clear
View Answer play_arrow
question_answer 120) An organic compound answers Molischs test as well as Benedicts test. But it does not answer Scliwanoffs test. Most probably, it is:
A)
sucrose
done
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B)
protein
done
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C)
fructose
done
clear
D)
maltose
done
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View Answer play_arrow
question_answer 121) The two chromatids of a metaphase chromosome represent:
A)
replicated chromosomes to be separated at anaphase
done
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B)
homologous chromosomes of a diploid set
done
clear
C)
non-homologous chromosomes joined at the centromere
done
clear
D)
maternal and paternal chromosomes joined at the centromere
done
clear
View Answer play_arrow
question_answer 122) Adenosine mono-phosphate is a:
A)
nucleoside of DNA
done
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B)
nucleotide of DNA
done
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C)
nucleoside of RNA
done
clear
D)
nucleotide of RNA
done
clear
View Answer play_arrow
question_answer 123) The source of energy for non-biological nitrogen fixation is:
A)
by ionizing events such as lightning and effect of cosmic rays
done
clear
B)
ferredoxin enzyme and nitrogenase
done
clear
C)
by reduction of proteins to ammonia
done
clear
D)
by oxidation of ammonia to protein
done
clear
View Answer play_arrow
question_answer 124) A single amino acid is often coded by more than one triplet code. In most of the cases the first two bases are the same but the third base is different. This feature of the genetic code is called:
A)
universality
done
clear
B)
non - overlapping and commaless
done
clear
C)
redundancy and degeneracy
done
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D)
non - ambiguity
done
clear
View Answer play_arrow
question_answer 125) During ventricular systole:
A)
oxygenated blood is pumped into the pulmonary artery and deoxygenated blood is pumped into the artery
done
clear
B)
oxygenated blood is pumped into the aorta and deoxygenated blood is pumped into the pulmonary vein
done
clear
C)
oxygenated blood is pumped into the pulmonary vein and deoxygenated blood is pumped into the pulmonary artery
done
clear
D)
oxygenated blood is pumped into the aorta and deoxygenated blood pumped into the pulmonary artery
done
clear
View Answer play_arrow
question_answer 126) Which is the correct sequence of the air passage in man?
A)
Nasal cavity pharynx trachea larynx bronchi bronchioles alveoli
done
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B)
Nasal cavity larynx pharynx trachea bronchi bronchioles alveoli
done
clear
C)
Nasal cavity pharynx larynx trachea bronchi bronchioles alveoli
done
clear
D)
Nasal cavity larynx bronchi pharynx trachea bronchioles alveoli
done
clear
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question_answer 127) Which one of the following statements is correct with regard to the principle of safe blood transfusion?
A)
The donors red blood corpuscles should not contain antibodies against the recipients serum
done
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B)
The recipients serum should not contain antigens against the donors antibodies
done
clear
C)
The recipients serum should not contain the antibodies against the red blood corpuscles of the donor
done
clear
D)
The recipients red blood corpuscles should not contain antibodies against the donors antigen
done
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question_answer 128) The formation of erythrocytes in foetus takes place in:
A)
liver and spleen
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B)
red bone marrow
done
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C)
blood plasma
done
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D)
sarcoplasm
done
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question_answer 129) A decrease in photosynthetic rate with increased availability of oxygen is called:
A)
Warburg effect
done
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B)
Richmond Lang effect
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C)
Blackmans law of limiting factors
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D)
Emerson enhancement effect
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question_answer 130) The correct sequence of meanings from inner to outer side is:
A)
duramater \[\to \]arachnoid membrane \[\to \]piamater
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B)
duramater \[\to \]piamater \[\to \]arachnoid membrane
done
clear
C)
piamater \[\to \]arachnoid membrane \[\to \]duramater
done
clear
D)
arachnoid membrane \[\to \]duramater \[\to \]piamater
done
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question_answer 131) In a germinating seed when protein is aerobically oxidized, the R.Q. value will be:
A)
more than one
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B)
less than one
done
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C)
one
done
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D)
zero
done
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question_answer 132)
Match the name of the cells given under Column-I with the name of organs/parts in which they occur, given under Column-II. Choose the answer which gives correct combination of the alphabets of the two columns. Column-I (Cells) Column-II (Parts/Organs) A. Van Kupffer cells p. islets of Langerhans B. \[\beta \]- cells q. liver sinusoids C. Brush border cells r. thyroid gland D. Paneth cells s. proximal convoluted tubule t. small intestine
A)
A = s, B = t, C = p, D = q
done
clear
B)
A = r, B = p, C = s, D= q
done
clear
C)
A = r, B = t, C = s, D = p
done
clear
D)
A = q, B = p, C = s, D= t
done
clear
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question_answer 133)
Match the components of Lac Operon of E. coli given under Column- I with their function listed in Column- II. Choose the answer with correct combination of alphabets of the two columns. Column-I (Components of Lac Operon) Column-II (Function) A. Structural gene p. binding site for represser protein B. Operator gene q. codes for represser protein C. Promoter gene r. induces lactose transport from the medium D. Regulator gene s. codes for enzyme proteins t. binding site for RNA- polymerase
A)
A = q, B = t, C = p, D = r
done
clear
B)
A = r, B = s, C = t, D = p
done
clear
C)
A = s, B = p, C = t, D = q
done
clear
D)
A = t, B = s, C = q, D = p
done
clear
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question_answer 134) Pons Varolii connects the:
A)
two cerebral hemispheres
done
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B)
two lobes of cerebellum
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C)
cerebrum and cerebellum
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D)
spinal cord with the brain
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question_answer 135) Three children in a family have blood types O, AB and B respectively. What are the genotypes of their parents?
A)
\[{{I}^{A}}i\]and \[{{I}^{B}}i~~~~~~~~~~\]
done
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B)
\[{{I}^{A}}{{I}^{B}}\]and \[ii\]
done
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C)
\[{{I}^{B}}{{I}^{B}}\]and\[{{A}^{A}}{{I}^{A}}\]
done
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D)
\[{{I}^{A}}{{I}^{A}}\]and \[{{I}^{B}}i\]
done
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question_answer 136)
Match the items given in Column- I with those listed in Column- II. Choose the answer with correct combination of alphabets of the two columns. Column-I (Characters) Column-II (Genotypes) A. Monohybrid cross p. T and t B. Test cross q. TT C. Alleles r. Tt \[\times \] Tt D. Homozygous tall s. tt t. Tt \[\times \] tt
A)
A = r, B = t, C = s, D = c
done
clear
B)
A = t, B = r, C = q, D = s
done
clear
C)
A = r, B = t, C = p, D = q
done
clear
D)
A = r, B = p, C = t, D = q
done
clear
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question_answer 137)
Match the types of WBC listed in Column- I with the shape of nucleus given under Column- II. Choose the answer which gives the correct combination of alphabets of the two columns. Column-I (Type of WBC) Column-II (Shape of nucleus) A. Neutrophils p. kidney - shaped B. Eosinophils q. S - shaped C. Basophils r. 3 to 5 lobes D. Monocytes s. 2 lobes t. disc- shaped
A)
A = r, B = t, C = p, D = q
done
clear
B)
A = t, B = r, C =, D = s
done
clear
C)
A = q, B = p, C = t, D = r
done
clear
D)
A = r, B = s, C = q, D = p
done
clear
View Answer play_arrow
question_answer 138) The Christmas disease patient lacks antihaemophilic:
A)
homogentisic acid oxidase
done
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B)
factor VIII
done
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C)
factor XI
done
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D)
factor IX
done
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question_answer 139) In which of the following tissue is the matrix not a product of synthesis of its cells?
A)
Vascular tissue
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B)
Osseus tissue
done
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C)
Loose connective tissue
done
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D)
Adipose tissue
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question_answer 140) An X-ray of the lower abdomen shows a shadown in the region of the ureter suspected to be an ureteric calculus. A possible clinical symptom would be:
A)
Acute Renal Failure (ARF)
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B)
Anuria and haematuria
done
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C)
Motor aphasia
done
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D)
Chronic Renal Failure (CRF)
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question_answer 141) In spermatogenesis the phase of maturation involves:
A)
the growth of spermatogonia into primary spermatocyte
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B)
the formation of spermatogonia from gonocytes through mitosis
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C)
the formation of spermatids from primary spermatocytes through meiosis
done
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D)
the formation of oogonia from the spermatocytes through meiosis
done
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question_answer 142) The concept of genetic drift was introduced by:
A)
Sewall Wright
done
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B)
Hardy Weinberg
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C)
Julian Huxley
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D)
G.G. Simpson
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question_answer 143)
Match the phytohormones given in Column- I with their functions given in Column- II. Choose the answer with correct combination of alphabets. Column-I (Phytohormones) Column-II (Functions) A. Auxins p. breaking seed dormancy B. Gibberelines q. inducting fruit ripening C. Cytokinins r. formation of abscission layer D. Ethylene s. root initiation t. Chloroplast development and chlorophyll synthesis
A)
A = p, B = r, C = q, D = s
done
clear
B)
A = r, B = s, C = p, U = t
done
clear
C)
A = s, B = p, C = t, D = q
done
clear
D)
A = s, B = t, C = r, D = q
done
clear
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question_answer 144) Human blood maintains homeostasis in the internal environment of the body by:
A)
replenishment of nutrients and oxygen and elimination of metabolic wastes from the extracellular fluid
done
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B)
replenishment of oxygen and elimination of \[C{{O}_{2}}\]
done
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C)
maintenance of blood sugar level and conversion of amino acids into urea and destruction of wornout RBCs
done
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D)
maintenance of ion concentration in the blood and body fluids by eliminating nitrogenous wastes
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question_answer 145) The lower most layer of atmosphere in which man and other living organisms exist, is called:
A)
stratosphere
done
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B)
mesosphere
done
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C)
thermosphere
done
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D)
trophosphere
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question_answer 146)
Match the type of cells listed under Column- I and their secretions given under Column- II. Choose the answer which gives the correct combination of the alphabets of the two columns: Column-I (Type of cells) Column-II (Secretions) A. Peptic cells p. mucus B. Oxyntic cells q. Alkaline fluid C. Goblet cells r. Pro-enzymes s. HCL
A)
A = p, B = p, C = s
done
clear
B)
A = s, B = r, C = t
done
clear
C)
A = s, B = p, C = q
done
clear
D)
A = r, B = s, C = p
done
clear
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question_answer 147)
The patient in the picture possibly depicts an instance of:
A)
myxoedema
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B)
acromegaly
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C)
cretinisms
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D)
simple goiter
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question_answer 148) Every cell of the body contributes gemmules to the germ cells and so shares in the transmission of inherited characters. This theory is known as:
A)
theory of inheritance of acquired characteristics
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B)
theory of germplasm
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C)
theory of pangenesis
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D)
theory of mutations
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question_answer 149) The enzymes which are commonly used in genetic engineering:
A)
restriction endonuclease and polymerase
done
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B)
endonuclease and ligase
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C)
restriction endonuclease and ligase
done
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D)
ligase and polymerase
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question_answer 150) A branch of Ecology which is concerned with the study of individual species at all stages of its life cycle in relation to environment is called:
A)
synecology
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B)
ecological niche
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C)
reproductive ecology
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D)
autecology
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question_answer 151) The organization which has been published the Red Data Book is:
A)
International Union for Conservation of Nature and Natural Resources
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B)
National Environmental Engineering Research Institute
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C)
National Wild life Action Plan
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D)
Conservation on International Trade in Endangered species of Wild Fauna and Flora
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question_answer 152) The valves which allow blood to flow from the ventricles into the arteries and not in the opposite direction are:
A)
A.V. valve (Atrio ventricular valve) and semilunar valve
done
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B)
bicuspid and tricuspid valve
done
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C)
semilunar and tricuspid valve
done
clear
D)
aortic and mitral valve
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question_answer 153) The absorption of glycerol, fatty acids and monoglycerides takes place by the:
A)
lymph vessels within the villi
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B)
wall of the stomach
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C)
colon
done
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D)
capillaries within the villi
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question_answer 154) Which of the following represent bile salts?
A)
Haemoglobin and biliverdin
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B)
Bilirubin and biliverdin
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C)
Bilirubin and haemoglobin
done
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D)
Sodium glycocholate and taurocholate
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question_answer 155)
The experimental set up shown in the adjacent diagram is for:
A)
the demonstration of development of suction force due to transpiration
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B)
measuring the rate of transpiration
done
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C)
the demonstration of ascent of sap.
done
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D)
the demonstration of anaerobic respiration
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question_answer 156) During expiration the diaphragm becomes:
A)
dome - shaped
done
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B)
oblique
done
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C)
normal
done
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D)
flattened
done
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View Answer play_arrow
question_answer 157)
Match the breeds of cattle given under Column- I with the place of their origin listed under Column-II. Choose the answer which gives the correct combination of alphabets of the two columns. Column-I (Cattle breeds) Column-II (Place of origin) A. Amrithmahal p. Hassan and Tumkur districts B. Ongole q. Coimbatore district C. Khillari r. Nellore and Guntur districts D. Hallikar s. Chikmangalore and Chitradurga districts t. Satara and Sholapur districts
A)
A = s, B = r, C = t, D = p
done
clear
B)
A = q, B = s, C- t, C = p
done
clear
C)
A = s, B = t, C = q, D = r
done
clear
D)
A = q, B = s, C = p, D = t
done
clear
View Answer play_arrow
question_answer 158) The first case of IVF - ET technique success, was reported by:
A)
Louis Joy Brown and Banting Best
done
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B)
Patrick Steptoe and Robert Edward
done
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C)
Robert Steptoe and Gilbert Brown
done
clear
D)
Baylis and Starling Taylor
done
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question_answer 159) Which of the following statements is true?
A)
All chordates are vertebrates
done
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B)
All vertebrates are chordates
done
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C)
Invertebrates possess a tubular nerve cord
done
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D)
Non-chordates have a vertebral
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question_answer 160) Which are the primary constituent of photochemical smog?
A)
Carbon dioxide and \[N{{O}_{2}}\]
done
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B)
Hydrocarbons and \[CFCs\]
done
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C)
\[S{{O}_{2}}\] and \[CO\]
done
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D)
\[N{{O}_{2}}\] and hydrocarbons
done
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question_answer 161)
Match the abnormalities given under Column- I with the symptoms, listed under Column- II. Choose the answer which gives the correct combination of alphabets of the two columns. Column-I (Abnormalities) Column-II (Symptoms) A. Hemiplegia p. formation of internal blood clot B. Cerebral thrombosis q. sudden insensibility accompanies by seizures C. Epilepsy r. speech defect D. Aphasia s. loss of function of one half of body E. t. inability to recognize objects
A)
A = t, B = s, C = q, D = p
done
clear
B)
A = q, B = r, C = s, D = t
done
clear
C)
A = t, B = s, C = p, D = q
done
clear
D)
A = s, B = p, C = q, D = r
done
clear
View Answer play_arrow
question_answer 162) Loss of forests, urbanization, increasing pollution are all due to:
A)
global warming
done
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B)
green house effect
done
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C)
population explosion
done
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D)
ozone depletion
done
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question_answer 163) In a comparative study of grassland ecosystem and pond ecosystem it may be observed that:
A)
the biotic components are almost similar
done
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B)
the abiotic components are almost column
done
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C)
primary and secondary consumers are similar
done
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D)
both biotic and abiotic components are different
done
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question_answer 164) The basic feature of typical C4 plants showing Kranz Anatomy is:
A)
the presence of chloroplasts in bundle sheath cells
done
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B)
the presence of chloroplasts in mesophyll and epidermal cells
done
clear
C)
the presence of typical chloroplasts with well-formed grana in bundle sheath cells and rudimentary chloroplasts in the mesophyll cells
done
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D)
the presence of rudimentary chloroplasts in bundle sheath cells and typical chloroplasts with well formed grana is mesophyll cells
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question_answer 165) Which of the following is the Pribnow box?
A)
5 TATAAT 3
done
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B)
5 TAATTA 3
done
clear
C)
5 AATAAT 3
done
clear
D)
5 ATATTA 3
done
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question_answer 166)
Match the branches of Biology listed in Column- I with the areas of study listed in Column- II. Choose the answer which gives the correct combination of alphabets of the columns. Column-I (Branches of biology) Column-II (Area of study) A Helminthology p. study of insects B Entomology q. study of fungi C Ornithology r. study of algae D Phycology s. study of birds t. study of worms
A)
A=p,B=s,C=q,D=t
done
clear
B)
A=t,B=p,C=s,D=r
done
clear
C)
A=s,B=t,C=r,D=p
done
clear
D)
A=r,B=p,C=s,D=q
done
clear
View Answer play_arrow
question_answer 167) The post mitotic phase of the cell in which active synthesis of RNA and proteins takes place is:
A)
S-phase
done
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B)
amitotic phase
done
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C)
Gz-phase
done
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D)
Gi-phase
done
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question_answer 168) Hodgkins disease is :
A)
cancer of the lymphoid tissue
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B)
cancer of the mammary gland
done
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C)
cancer of the WBC
done
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D)
cancer of the liver
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question_answer 169) Which one of the following is a monocarpic tree?
A)
Bomssus flabellifer
done
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B)
Corypha umbraculifera
done
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C)
Phoenix dactylifera
done
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D)
Elaeis guineensis
done
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question_answer 170) Basidiospores are produced by :
A)
Yeasts
done
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B)
Diatoms
done
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C)
Agaricus
done
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D)
Bacteria
done
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question_answer 171) Sertoli cells are found :
A)
between the seminiferous tubules
done
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B)
in the germinal epithelium of ovary
done
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C)
in the upper part of the fallopian tube
done
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D)
in the germinal epithelium of the seminiferous tubules
done
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question_answer 172) Gymnosperms are naked seeded plants because :
A)
there is no fruit
done
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B)
there is no ovule
done
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C)
there is no fertilization
done
clear
D)
there is no ovary and fruit
done
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question_answer 173) The stem of grasses and related plants elongate by the activity of :
A)
lateral meristem
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B)
apical meristem
done
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C)
both apical and intercalary meristem
done
clear
D)
intercalary meristem
done
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View Answer play_arrow
question_answer 174) Green leaf-like modified aerial stems/branches with a single internodes are called :
A)
phylloclades
done
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B)
phyllodes
done
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C)
bulbils
done
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D)
cladodes
done
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question_answer 175)
In the following diagram of a leg of cockroach parts have been indicated by alphabets. Choose the answer in which these alphabets have been correctly matched with the parts which they indicate :
A)
A = coxa, B = tibia, C = tarsus, D =femur, £ = trochanter
done
clear
B)
A = coxa, B = femur, C = trochanter, D = tarsus, E = tibia
done
clear
C)
A = coxa, B = tarsus, C = femur, D = tibia, E = trochanter
done
clear
D)
A = coxa, B = trochanter, C = femur, D = tibia, E = tarsus
done
clear
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question_answer 176) When a lysosome fuses with a phagosome, it results in the formation of:
A)
secondary lysosomes
done
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B)
primary lysosome
done
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C)
autophagic vacuole
done
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D)
residual body
done
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question_answer 177)
The flower shown in the adjacent diagram is :
A)
homochlamydeous unisexual and hypogynous
done
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B)
homochlamydeous bisexual and epigynous
done
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C)
dichlamydeous bisexual and hypogynous
done
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D)
heterochlamydeous bisexual and epigynous
done
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question_answer 178) Select the correct combination of inflorescences :
A)
simple raceme, corymb, umbel, simple cyme
done
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B)
simple raceme, spadix, spike, catkin
done
clear
C)
cyathium, verticillaster, hypanthodium, catkin
done
clear
D)
capitulum, globose head, verticillaster, catkin
done
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question_answer 179) Which of the following statements is correct with reference to the flowers of family Solanaceae?
A)
Pentamerous, actinomorphic, unisexual, hypogynous
done
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B)
Pentamerous, zygomorphic, bisexual, epigynous
done
clear
C)
Pentamerous, bisexual, actinomorphic, hypogynous
done
clear
D)
Trimerous, actinomorphic, bisexual, hypogynous
done
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question_answer 180)
Match the various classes of animals given under Column-I with the examples listed in Column-II. Choose the answer which gives the correct combination of alphabets of the two columns. Column-I (Classes) Column-II (Examples) A. Polychaeta p. Scorpion B. Trematoda q. Pila C. Arachnida r. liver fluke D. Gastropoda s. Nereis t. Star fish
A)
A=s, B=r, C=p. D=q
done
clear
B)
A=r, B=s, C=p, D=t
done
clear
C)
A=q, B=s, C=t,D=p
done
clear
D)
A=t, B=q, C=s, D=r
done
clear
View Answer play_arrow