Solved papers for RAJASTHAN ­ PMT Rajasthan - PMT Solved Paper-2000

done Rajasthan - PMT Solved Paper-2000

  • question_answer1) It is easier to wash clothes in hot water because:

    A) surface tension of hot water is more

    B) surface tension of hot water is less

    C) less soap is used

    D) none of these

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  • question_answer2) Time period of a satellite ... on decreasing its height:

    A) will decrease

    B) will increase

    C) will remain same

    D) none of these

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  • question_answer3) A ball is released from certain height which looses 50% of its kinetic energy on striking the ground it will attain a height again:

    A) \[\frac{1}{4}\]th of initial height

    B) \[\frac{1}{2}\]th of initial height

    C) \[\frac{3}{4}\]th of initial height

    D) none of these

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  • question_answer4) The ratio of escape velocity and orbital velocity of satellite revolving near the earth:

    A) \[\sqrt{2}\]

    B) 2

    C) 3

    D) 4

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  • question_answer5) When a load of 5 kg is hung on a wire then extension of 3 metre takes place, then work done will be:

    A) \[\text{75}\,\text{J}\]

    B) \[60\,\text{J}\]

    C) \[50\,\text{J}\]

    D) \[100\,\text{J}\]

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  • question_answer6) The relation between time period (T) of a body and radius of circular orbit (r) is:

    A) \[{{T}^{2}}\propto {{r}^{3}}\]

    B) \[T\propto {{r}^{3}}\]

    C) \[T\propto r\]

    D) \[T\propto {{r}^{4}}\]

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  • question_answer7) If applied torque on a system is zero, i.e., \[\tau =0\], then for that system:

    A) \[\omega =0\]

    B) \[\alpha =0\]

    C) \[J=0\]

    D) \[F=0\]

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  • question_answer8) A steel wire of 1 m long and 1 mm2 cross section area is hanged from rigid end when weight of 1 kg is hung from it then change in length will be (for wire Youngs coefficient \[Y=2\times {{10}^{11}}\,N/{{m}^{2}}\]):

    A) 0.5 mm

    B) 0.25 mm

    C) 0.05 mm

    D) 5 mm

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  • question_answer9) Reason for weightlessness in satellite:

    A) zero gravity

    B) centre of gravity

    C) zero reaction force on plane of satellite

    D) none of these

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  • question_answer10) If solid sphere and solid cylinder of same mass and density rotate about their own axis, the moment of inertia will be greater for:

    A) solid sphere

    B) cylinder

    C) equal for both

    D) none of these

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  • question_answer11) A satellite of mass\[{{m}_{s}}\] is moving in an orbit of radius R, then its angular momentum:

    A) \[\sqrt{G{{M}_{e}}{{m}_{s}}R}\]

    B) \[\sqrt{G{{M}_{e}}{{m}_{s}}^{2}R}\]

    C) \[\frac{\sqrt{G{{M}_{e}}{{m}_{s}}^{2}}}{R}\]

    D) \[\frac{\sqrt{G{{M}_{e}}{{m}_{s}}}}{R}\]

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  • question_answer12) Contact angle of kerosen oil with solid surface is:

    A) \[0{}^\circ \]

    B) \[90{}^\circ \]

    C) \[45{}^\circ \]

    D) \[33{}^\circ \]

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  • question_answer13) True relation for triode valve is:

    A) \[\mu ={{r}_{P}}\times {{g}_{m}}\]

    B) \[\mu =\frac{{{g}_{m}}}{{{r}_{P}}}\]

    C) \[\mu =2{{g}_{m}}\times {{r}_{p}}\]

    D) \[\mu =\frac{{{g}_{m}}}{{{r}_{p}}}\]

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  • question_answer14) When plate voltage in diode valve is increased from 100 volt to 150 volt. Then plate current increases from 7.5 mA to 12 mA, then dynamic plate resistance will be:

    A) 10 \[k\Omega \]

    B) 11\[k\Omega \]

    C) 15\[k\Omega \]

    D) 11.1\[k\Omega \]

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  • question_answer15) A larger drop is made from two small drops each having 100 V, then voltage on the bigger drop is:

    A) 100 V

    B) 200 V

    C) 156 V

    D) \[100\times {{2}^{-2/3}}V\]

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  • question_answer16) Which of the following is a correct relation:

    A) \[\alpha =\frac{\beta }{1-\beta }\]

    B) \[\beta =\frac{\alpha }{1-\alpha }\]

    C) \[\beta =\frac{\alpha }{1+\alpha }\]

    D) \[\alpha =\frac{\beta }{1+\alpha }\]

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  • question_answer17) If the sun rays are incidenting at \[60{}^\circ \] angle and intensity is \[I\]. If sun rays are made incident at \[30{}^\circ \] angle, then what will be the intensity?

    A) \[\frac{I}{\sqrt{3}}\]

    B) \[\sqrt{3}I\]

    C) \[3I\]

    D) \[\frac{I}{3}\]

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  • question_answer18) Value of forbidden energy gap for semi conductor is:

    A) 1 eV

    B) 6 eV

    C) 0 eV

    D) 3 eV

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  • question_answer19) The reason of current flow in p-n junction in forward bias is:

    A) drifting of charge carriers

    B) drifting of minority charge carriers

    C) diffusion of charge carriers

    D) all the above

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  • question_answer20) A current of 1 mA is flowing in conductor, then number of electrons passing through per second in conductor is:

    A) \[6.25\times {{10}^{17}}\]

    B) \[6.25\times {{10}^{15}}\]

    C) \[1.6\,\times {{10}^{16}}\]

    D) \[1.6\,\times {{10}^{-16}}\]

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  • question_answer21) In a coil current changes from 2A to 4A in 0.05 second. If the average induced e.m.f. is 8 volt, then coefficient of self inductance is:

    A) 0.2H

    B) 0.1H

    C) 0.8H

    D) 0.4 H

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  • question_answer22) A battery having e.m.f. 5 volt and internal resistance 0.5\[\Omega \] is connected with a resistance of 4.5\[\Omega \], then the voltage at the terminals of battery is:

    A) 4.5 V

    B) 4 V

    C) 0 V

    D) 2 V

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  • question_answer23) A charged particle is accelerated by a potential of 200 volt. If its velocity is \[8.4\times {{10}^{8}}m/s,\] then value of e/m for that particle is:

    A) \[17.6\times {{10}^{16}}\]

    B) \[14.5\times {{10}^{12}}\]

    C) \[1.76\times {{10}^{15}}\]

    D) \[1.45\times {{10}^{15}}\]

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  • question_answer24) Thermoionic current is directly proportional to:

    A) \[{{T}^{1/2}}\]

    B) \[{{T}^{3/2}}\]

    C) \[{{T}^{2}}\]

    D) \[T\]

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  • question_answer25) Zener diode is used as:

    A) an amplifier

    B) a rectifier

    C) a oscillator

    D) a voltage regulator

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  • question_answer26) Ga As is a/an:

    A) element semiconductor

    B) alloy semiconductor

    C) bad conductor

    D) metalic semiconductor

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  • question_answer27) Junction diode is used as:

    A) a rectifier

    B) an amplifier

    C) an indicator

    D) a modulator

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  • question_answer28) On giving 220 V to a resistor the power dissipated is 40 watt, then the value of resistance is:

    A) 1210\[\Omega \]

    B) 2000\[\Omega \]

    C) 1000\[\Omega \]

    D) none of these

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  • question_answer29) If each resistance in the figure is of 9\[\Omega \] then reading of ammeter is:

    A) 5 A

    B) 8 A

    C) 2 A

    D) 9 A

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  • question_answer30) Intensity of light depends upon:

    A) amplitude

    B) frequency

    C) wavelength

    D) none of these

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  • question_answer31) Velocity of sound is maximum in:

    A) \[{{H}_{2}}\]

    B) \[{{N}_{2}}\]

    C) He

    D) \[{{O}_{2}}\]

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  • question_answer32) If refractive index of a medium is 1.5, then velocity of light in that medium will be:

    A) \[10\times {{10}^{8}}\]

    B) \[2\times {{10}^{8}}\]

    C) \[3\times {{10}^{8}}\]

    D) \[4\times {{10}^{8}}\]

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  • question_answer33) Decible is the unit of:

    A) intensity of light

    B) radiating power of X-rays

    C) intensity of sound

    D) energy of radiation

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  • question_answer34) Light enters into glass from air then its:

    A) frequency increases

    B) frequency decreases

    C) wavelength increases

    D) wavelength decreases

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  • question_answer35) A real gas behaves like an ideal gas at:

    A) high temperature and low pressure

    B) low temperature and high pressure

    C) high temperature and high pressure

    D) low temperature and low pressure

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  • question_answer36) Relation between pressure (P) and energy (E) for a unit volume of gas :

    A) \[E=\frac{3}{2}p\]

    B) \[E=\frac{2}{3}p\]

    C) \[E=\frac{p}{3}\]

    D) \[E=3p\]

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  • question_answer37) Ratio of rms velocities of 02 and H2 at equal temperature will be :

    A) 1 : 1

    B) 1 : 4

    C) 2 : 1

    D) 4 : 1

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  • question_answer38) The colour of red glass in a dark room will be:

    A) green

    B) indigo

    C) black

    D) yellow

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  • question_answer39) What will be the wave velocity, if the radar gives 5.4 waves per minute and wavelength of the given wave is 10 m?

    A) 4m/s

    B) 6m/s

    C) 0.9m/s

    D) 5m/s

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  • question_answer40) Which of the following will remain constant in the phenomenon of refraction of light?

    A) Wavelength

    B) Velocity

    C) Frequency

    D) None

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  • question_answer41) If distance between the molecules of a gas is doubled, then pressure will become (if initial presure is P):

    A) \[\frac{p}{4}\]

    B) \[\frac{p}{2}\]

    C) \[\frac{p}{8}\]

    D) \[p\]

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  • question_answer42) When an open organ is dipped in water upto half of its height, then its frequency will become:

    A) half

    B) double

    C) remain same

    D) four time

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  • question_answer43) On basis of which property light waves can be differentiated from sound waves:

    A) interference

    B) diffraction

    C) polarisaton

    D) reflection

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  • question_answer44) If position of a particle X is directly proportional to t2 then:

    A) velocity will be constant

    B) acceleration will be constant

    C) acceleration will be variable

    D) none of these

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  • question_answer45) Which of the following required no medium for propagation?

    A) Cathode rays

    B) Electromagnetic rays

    C) Sound waves

    D) None of these

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  • question_answer46) If wavelength of photon is \[6000\overset{\text{o}}{\mathop{\text{A}}}\,\], then its energy will be:

    A) 0.66 eV

    B) 1.66 eV

    C) 2.66 eV

    D) 3.5 eV

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  • question_answer47) Which of the following particle has similar mass to electron?

    A) Proton

    B) Neutron

    C) Positron

    D) Neutrino

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  • question_answer48) 1 amu is equivalent to:

    A) 931 MeV

    B) 0.51 eV

    C) 9.31 MeV

    D) 1-02 MeV

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  • question_answer49) If half life of a substance is 38 days and its quantity is 10.38 g. Then quantity remaining left after 19 days will be:

    A) 0.151 g

    B) 0.32g

    C) 0.51g

    D) 0.16g

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  • question_answer50) Boron rods in nuclear reactor are used as a:

    A) moderator

    B) control rods

    C) coolent

    D) protectivc shield

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  • question_answer51) The number of free electrons in Si at normal temperature is:

    A) \[2.5\times {{10}^{6}}\,per\,c{{m}^{3}}\]

    B) \[1.5\times {{10}^{10}}\,per\,c{{m}^{3}}\]

    C) \[1.5\times {{10}^{13}}\,per\,c{{m}^{3}}\]

    D) \[2.5\times {{10}^{13}}\,per\,c{{m}^{3}}\]

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  • question_answer52) Zener breakdown will occur if:

    A) impurity level is high

    B) impurity level is low

    C) impurity level is less is n side

    D) impurity level is less in p side

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  • question_answer53) A train is stopped by applying breaks, then it stops after covering 50 m. If initial velocity of train is double than before and train is stopped with same force, then the train will stop at a distance of:

    A) 50 metre

    B) 100 metre

    C) 200 metre

    D) 400 metre

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  • question_answer54) A shell having a hole of radius r is dipped in water. It holds the water upto a depth h, then the value of r is:

    A) \[r=\frac{T}{2hdg}\]

    B) \[r=\frac{\sqrt{2}T}{hdg}\]

    C) \[r=\frac{T}{hdg}\]

    D) \[r=\frac{2T}{hdg}\]

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  • question_answer55) The energy of an electron in the excited state of H-atom is - 1.5 eV, then according to Bohrs model, its momentum will be:

    A) \[3.15\times {{10}^{-34}}\,J-\sec \]

    B) \[1.82\times {{10}^{-34}}\,J-\sec \]

    C) \[5.01\times {{10}^{-30}}\,J-\sec \]

    D) \[7.14\times {{10}^{-31}}\,J-\sec \]

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  • question_answer56) A force of 10 N displaces an object by 1 m. If work done is 50 J, then direction of force makes an angle with direction of displacement:

    A) \[0{}^\circ \]

    B) \[60{}^\circ \]

    C) \[90{}^\circ \]

    D) \[30{}^\circ \]

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  • question_answer57) The work done against gravity in taking 10 kg mass at 1 metre height in 1 sec will be:

    A) 98 J

    B) 150 J

    C) 600 J

    D) 980 J

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  • question_answer58) A swing is revolving in vertical plane, its height from ground in lowermost and uppermost position or 1 metre and 5 metre. Then its velocity at uppermost point will be:

    A) \[\sqrt{2}g\]

    B) \[2\sqrt{g}\]

    C) \[2g\]

    D) \[4g\]

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  • question_answer59) \[dU+dW=0,\] is valid for:

    A) cyclic process

    B) isochoric process

    C) adiabatic process

    D) isobaric process

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  • question_answer60) If mass number for an element is M and atomic number is Z, then number of neutrons will be:

    A) M - Z

    B) Z - M

    C) M + Z

    D) Z

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  • question_answer61) If initial temperature of a gas is \[25{}^\circ C\] and its temperature is raised upto \[250{}^\circ C\], then its rms velocity:

    A) will decrease by a factor \[\sqrt{1.754}\]

    B) will increase by a factor \[\sqrt{1.754}\]

    C) will decrease by a factor \[\sqrt{10}\]

    D) will increase by a factor \[\sqrt{10}\]

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  • question_answer62) Work function of a oxide coated metal surface will be:

    A) 1.1 eV

    B) 2.63 eV

    C) 4.52 eV

    D) 75 eV

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  • question_answer63) Positron was discovered ill the year:

    A) 1898

    B) 1902

    C) 1925

    D) 1932

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  • question_answer64) In the following figure distance of the point from A, when electric field intensity is zero:

    A) 20 cm

    B) 10 cm

    C) 33 cm

    D) none of these

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  • question_answer65) Prism of which material is used for study of infrared spectrum :

    A) rock salt

    B) flint glass

    C) crown glass

    D) quartz

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  • question_answer66) Three capacitors of \[2\mu F,\]\[3\mu F,\] and \[6\mu F,\]are joined in scries with n battery of 10 volt, then amount of charge in\[3\mu F,\] capacitor will be:

    A) \[5\mu C\]

    B) \[10\mu C\]

    C) \[11\mu C\]

    D) \[15\mu C\]

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  • question_answer67) An \[\alpha -\]particle moving perpendicularly to a magnetic field of \[0.2\,wb/metr{{e}^{2}},\] experiences a force of \[3.84\times {{10}^{-24}}N\]. Then speed of a particle will be:

    A) \[6\times {{10}^{5}}\,m/s\]

    B) \[5\times {{10}^{-5}}\,m/s\]

    C) \[1.2\times {{10}^{6}}\,m/s\]

    D) \[3.8\,\times {{10}^{6}}\,m/s\]

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  • question_answer68) If a satellite revolving round the earth decreases its orbital radius, then its time period:

    A) decreases

    B) unchanged

    C) increases

    D) none of these

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  • question_answer69) Unit of magnetic flux is:

    A) ampere/metre2

    B) weber

    C) gauss

    D) orested

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  • question_answer70) Equation of a progressive wave is \[y=a\,\sin \left( 400\pi t-\frac{\pi x}{0.85} \right),\]then its velocity will be:

    A) 34 m/s

    B) 40 m/s

    C) 340 m/s

    D) 400 m/s

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  • question_answer71) Magnetic moment of Ne will be:

    A) 0

    B) \[{{\mu }_{B}}\]

    C) \[\sqrt{2}{{\mu }_{B}}\]

    D) \[{{\sqrt{2\mu }}_{B}}\]

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  • question_answer72) To obtain beats, the minimum difference in the frequencies of two sources is:

    A) 4 Hz

    B) 10 Hz

    C) 15 Hz

    D) 20 Hz

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  • question_answer73) Remaining quantity (in %) of radioactive element after 5 half lives:

    A) 4.125%

    B) 3.125%

    C) 31.1%

    D) 42.125%

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  • question_answer74) When neutrons are bombarded on \[_{5}{{B}^{10}}\]then\[_{5}{{B}^{10}}+{{1}_{{{n}_{0}}}}\xrightarrow{{}}X{{+}_{2}}H{{e}^{4}},X\] is:

    A) \[_{3}L{{i}^{7}}\]

    B) \[_{3}L{{i}^{6}}\]

    C) \[_{5}B{{e}^{8}}\]

    D) \[_{5}B{{e}^{12}}\]

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  • question_answer75) 75. Work function of a metal is \[5.26\text{ }\times {{10}^{-18}}\] then its threshold wavelength will be:

    A) \[736.7\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[760.7\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    C) \[301\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) \[344.4\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

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  • question_answer76) The resistors whose ratio is 1 : 2, are connected in parallel, the ratio of power dissipated is:

    A) 1 : 2

    B) 1 : 4

    C) 4 : 1

    D) 2 : 1

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  • question_answer77) Hole are the charge carriers in:

    A) semiconductor

    B) ionic solids

    C) p-type semiconductor

    D) metals

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  • question_answer78) A radio station is transmitting the waves of wavelength 300m. Radiation capacity of the transmitter is 10 kW. Find out the number of photons which are emitting in per unit time:

    A) \[1.5\times {{10}^{35}}\]

    B) \[1.5\times {{10}^{31}}\]

    C) \[1.5\times {{10}^{29}}\]

    D) \[1.5\times {{10}^{33}}\]

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  • question_answer79) Which of the following has maximum energy?

    A) Radio waves

    B) Infrared waves

    C) Ultravoilet waves

    D) Micro waves

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  • question_answer80) On increasing the temperature by \[1{}^\circ C\] of sound, its velocity increases by:

    A) 0.6 m/s

    B) 1.2 m/s

    C) 4 m/s

    D) 0

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  • question_answer81) A cylindrical wire is stretched upto twice of its length, then its resistance becomes :

    A) 4 times

    B) unchanged

    C) \[\frac{1}{2}\]times

    D) 2 times

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  • question_answer82) A person is standing on a moving platform spreading his arms. He suddenly contracts his rms, his:

    A) angular momentum will increase.

    B) moment of inertia will increase.

    C) moment of inertia will decrease.

    D) angular momentum remains same.

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  • question_answer83) A larger drop is made from two smaller drops, then energy :

    A) emitted

    B) absorbed

    C) no exchange of heat

    D) none of these

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  • question_answer84) A particle is moving with constant speed in horizontal circle of radius R. Then in completing half cycle:

    A) change in momentum is \[m\upsilon r\]

    B) change in kinetic energy is\[\frac{1}{2}m\upsilon r\]

    C) change in kinetic energy is \[m{{\upsilon }^{2}}\]

    D) change in kinetic energy is zero

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  • question_answer85) A lift is ascending by acceleration g/3. What will be the time period of a simple pendulum, suspended from its cilling? If its time period in stationary life is T:

    A) \[\frac{T}{2}\]

    B) \[\frac{\sqrt{3T}}{2}\]

    C) \[\frac{\sqrt{3T}}{4}\]

    D) \[\frac{T}{4}\]

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  • question_answer86) Equation for an ideal gas is:

    A) PV = RT

    B) \[P{{V}^{\gamma }}\] = constant

    C) \[{{C}_{P}}-{{C}_{P}}=R\]

    D) none of these

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  • question_answer87) A child is running towards a plane mirror with a velocity 5 m/s, then his image appears coming towards him with velocity:

    A) 10 m/s

    B) 2.5 m/s

    C) 5m/s

    D) 4m/s

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  • question_answer88) Which of the colour of light is maximum scattered?

    A) Red

    B) Voilet

    C) Blue

    D) Green

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  • question_answer89) Image formed by a concave mirror of focal length 6 cm, is 3 times of the object, then the distance of object from mirror is:

    A) - 4 cm

    B) 8 cm

    C) 6 cm

    D) 12 cm

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  • question_answer90) Focal length of a plane mirror is:

    A) zero

    B) infinite

    C) very less

    D) indefinite

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  • question_answer91) Magnetic; field of earth is H = 0.3g, A magnet is vibrating 5 oscillations/ minute the deppreciation required in the magnetic field of earth of increase time period uoto 10 oscillations minute:

    A) 2.25 g

    B) 0.6g

    C) 0.9g

    D) 0.12g

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  • question_answer92) Torr is the unit of:

    A) pressure

    B) density

    C) volume

    D) flux

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  • question_answer93) Who first discovered that white light consists of seven colours?

    A) Einestein

    B) Raman

    C) Faraday

    D) Newton

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  • question_answer94) The energy obtained by accelerating an electron by a potential difference of 1 V:

    A) 1 eV

    B) 2 J

    C) 1 W

    D) 1 erg

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  • question_answer95) Angular momentum is:

    A) axial vector

    B) polar vector

    C) scalar

    D) vector

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  • question_answer96) The displacement (s) of a body is directly proportional to square of time (r), then its acceleration:

    A) increases

    B) remain constant

    C) decreases

    D) zero

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  • question_answer97) Kinetic energy of a gas is:

    A) \[\frac{3}{2}KT\]

    B) \[KT\]

    C) \[RT\]

    D) \[3KT\]

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  • question_answer98) Kinetic energy of a liquid on freezing:

    A) increases

    B) decreases

    C) remains same

    D) none of these

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  • question_answer99) Ratio among linear expansion coefficient (\[\alpha \]), areal expansion coefficient (\[\beta \]) and volume expansion coefficient \[(\gamma )\] is:

    A) 1: 2 : 3

    B) 3 : 2 : 1

    C) 4 : 3 : 2

    D) none of these

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  • question_answer100) The force acting on unit length on unit parallel current carrying conductor:

    A) zero

    B) \[\frac{{{\mu }_{0}}}{2\pi }\frac{{{i}_{1}}{{i}_{2}}}{r}\]

    C) \[{{\mu }_{0}}\frac{^{i}{{1}^{i}}2}{{{r}^{2}}}\]

    D) \[\frac{^{i}{{1}^{i}}2}{r}\]

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  • question_answer101) \[C{{H}_{3}}CHO\]and \[C{{H}_{3}}COC{{H}_{3}}\]from addition products with:

    A) Phenyl hydrazine

    B) \[{{H}_{2}}N.N{{H}_{2}}\]

    C) Semi carbazide

    D) \[HCN\]

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  • question_answer102) Carbinol is the trivial name for:

    A) Methyl alcohol

    B) \[C{{H}_{3}}C{{H}_{2}}CHOHC{{H}_{3}}\]

    C) Ethyl alcohol

    D) \[{{(C{{H}_{3}})}_{3}}COH\]

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  • question_answer103) The order of polarity of \[C{{H}_{3}}I,\]\[C{{H}_{3}}Br\] and \[C{{H}_{3}}Cl\]molecule is:

    A) \[C{{H}_{3}}Cl>C{{H}_{3}}I>C{{H}_{3}}Br\]

    B) \[C{{H}_{3}}I>C{{H}_{3}}Br>C{{H}_{3}}Cl\]

    C) \[C{{H}_{3}}Cl>C{{H}_{3}}Br>C{{H}_{3}}I\]

    D) \[C{{H}_{3}}Br>C{{H}_{3}}Cl>C{{H}_{3}}I\]

    View Answer play_arrow
  • question_answer104) Phenol reacts with \[B{{r}_{2}}\] in \[CC{{l}_{4}}\] at low temperature to give:

    A) O and p-bromo phenol

    B) p-bromo phenol

    C) 2, 4, 6-tribromo phenol

    D) m-bromo phenol

    View Answer play_arrow
  • question_answer105) Which of these is gem-dihalide?

    A) \[C{{H}_{3}}.\,CHB{{r}_{2}}\]

    B) \[C{{H}_{2}}Br.\,C{{H}_{2}}Br\]

    C) \[C{{H}_{3}}CHBr.C{{H}_{2}}Br\]

    D) None of these

    View Answer play_arrow
  • question_answer106) The nitro group in nitrobenzene is:

    A) Para directing

    B) Ortho directing

    C) Meta directing

    D) Ortho and para directing

    View Answer play_arrow
  • question_answer107) Which of the following group combined and formed carboxylic group?

    A) 2-carbonyl group

    B) Carbonyl group + hydroxyl group

    C) Both (a) and (b)

    D) None of these

    View Answer play_arrow
  • question_answer108) In methyl sprit:

    A) \[C{{H}_{3}}OH+pyridine+poision\text{ }product\]

    B) \[C{{H}_{3}}OH+{{H}_{2}}O\]

    C) \[{{C}_{2}}{{H}_{5}}OH+{{H}_{2}}O\]

    D) None of these

    View Answer play_arrow
  • question_answer109) In which of the following L.P.G. gas is:

    A) Lower pressure scale

    B) Liquid petrolium gas

    C) Low pressure gas

    D) None of these

    View Answer play_arrow
  • question_answer110) Halogenation of alkanes is a example of:

    A) Nucleophilic substitution

    B) Oxidation

    C) Electrophilic substitution

    D) Free radical substitution

    View Answer play_arrow
  • question_answer111) Which of the molecule of minimum dipole moment?

    A) \[CO\]

    B) \[{{H}_{2}}O\]

    C) \[HCl\]

    D) \[N{{H}_{3}}\]

    View Answer play_arrow
  • question_answer112) Compound formed by \[ds{{p}^{2}}\]hybridisation will have configuration:

    A) Octahedral

    B) Tetrahedral

    C) Square planar

    D) Trigonal

    View Answer play_arrow
  • question_answer113) Which of the following colour give methyl orange indicator in acidic medium:

    A) Red

    B) Yellow

    C) Blue

    D) Colourless

    View Answer play_arrow
  • question_answer114) The correct relationship between \[{{K}_{P}}\] and \[{{K}_{c}}\] in gaseous equilibrium is:

    A) \[{{K}_{p}}={{K}_{p}}{{(RT)}^{\Delta n}}\]

    B) \[{{K}_{c}}=RT{{({{K}_{p}})}^{\Delta n}}\]

    C) \[{{K}_{p}}={{K}_{c}}{{(RT)}^{\Delta n}}\]

    D) \[{{K}_{p}}=RT{{({{K}_{c}})}^{\Delta n}}\]

    View Answer play_arrow
  • question_answer115) Which species should be least likely to act as a Lewis base?

    A) \[C{{N}^{-}}\]

    B) \[PC{{l}_{3}}\]

    C) \[{{I}^{+}}\]

    D) \[SC{{l}_{2}}\]

    View Answer play_arrow
  • question_answer116) Optical isomerism arises due to the presence of:

    A) a plane of symmetry

    B) a centre of symmetry

    C) a line symmetry

    D) an asymmetric carbon atom

    View Answer play_arrow
  • question_answer117) The dissociation constants of two acid AB and \[A{{B}_{2}}\]are \[3.4\times {{10}^{-4}}\]and \[1.8\times {{10}^{5}}\] respectively. The relative strengths of the acids will approximately be:

    A) \[16:1\]

    B) \[1:4\]

    C) \[1:16\]

    D) \[4:1\]

    View Answer play_arrow
  • question_answer118) Which of the following statements is correct?

    A) A small anion undergoes a high degree of polarisation

    B) Small sized of cation minimizes the polarisation

    C) A small anion can cause large degree of polarisation

    D) Polarisation of an anion is maximum by high charged cation.

    View Answer play_arrow
  • question_answer119) Baking soda is:

    A) \[NaHC{{O}_{3}}\]

    B) \[NaN{{O}_{3}}\]

    C) \[NaOH\]

    D) \[N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O\]

    View Answer play_arrow
  • question_answer120) In which of the following chemical reduction is not possible?

    A) Hematite change into iron

    B) cupratite change into copper

    C) Bauxite change into aluminium

    D) Zinc oxide change into zinc

    View Answer play_arrow
  • question_answer121) For hypothetical equlibrium \[4A+5B4X+6Y\] The unit of \[{{K}_{c}}\] will be:

    A) \[litre\text{ }mol{{e}^{-1}}\]

    B) \[mole\,\,litr{{e}^{-1}}\]

    C) \[litre\text{ }mol{{e}^{-2}}\]

    D) \[mol{{e}^{2}}\text{ }litr{{e}^{-2}}\]

    View Answer play_arrow
  • question_answer122) In the following sequence of reaction the end product is: \[HC\equiv CH\xrightarrow[{{H}_{2}}S{{O}_{4}}]{H{{g}^{2+}}}A\xrightarrow[{{H}_{2}}O]{C{{H}_{3}}MgX}B\xrightarrow{O}C\]

    A) \[C{{H}_{3}}COC{{H}_{3}}\]

    B) \[C{{H}_{3}}CHO\]

    C) \[{{C}_{2}}{{H}_{5}}OH\]

    D) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\]

    View Answer play_arrow
  • question_answer123) Hybridisation of carbon in \[-CHO\] group is:

    A) \[s{{p}^{3}}\]

    B) \[sp\]

    C) \[s{{p}^{2}}\]

    D) none of these

    View Answer play_arrow
  • question_answer124) The boiling point of \[{{C}_{2}}{{H}_{5}}OH\] is much higher than that of dimethyl ether, though both have the same molecular weight The reason for this is:

    A) Dipole moment of \[{{C}_{2}}{{H}_{5}}OH\]is less

    B) Ether is insoluble in water

    C) \[{{C}_{2}}{{H}_{5}}OH\]Shows hydrogen bonding

    D) Methyl group are attached to oxygen in ether

    View Answer play_arrow
  • question_answer125) The starch change into glucose from this enzyme:

    A) amylase

    B) invertase

    C) zymase

    D) urease

    View Answer play_arrow
  • question_answer126) bad smelling substance. The bad smelling substance is:

    A) \[CH=CH\]

    B) \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]

    C) \[{{H}_{6}}{{H}_{5}}Cl\]

    D) phenyl isocyanide

    View Answer play_arrow
  • question_answer127) When \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\] heated with \[{{C}_{6}}{{H}_{5}}CHO\] the product is:

    A) schiffs base

    B) benzoin

    C) azoxy benzene

    D) unsaturated acid

    View Answer play_arrow
  • question_answer128) In which of the following dry ice is:

    A) solid \[{{H}_{2}}O\]

    B) solid \[C{{O}_{2}}\]

    C) both (a) and (b)

    D) none of these

    View Answer play_arrow
  • question_answer129) Nitration of benzene followed by reduction with \[(Sn+HCl)\] will give:

    A) \[{{C}_{6}}{{H}_{5}}OH\]

    B) \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]

    C) \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}\]

    D) \[{{C}_{6}}{{H}_{5}}CN\]

    View Answer play_arrow
  • question_answer130) Which of the following will have least hindered rotation about carbon-carbon?

    A) \[{{C}_{2}}{{H}_{5}}\]

    B) \[C{{H}_{2}}=C{{H}_{2}}\]

    C) \[CH\equiv CH\]

    D) Hexa chloro ethane

    View Answer play_arrow
  • question_answer131) \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}+HN{{O}_{2}}\xrightarrow{(NaN{{O}_{2}}/HCl)}X\] Product X is:

    A) nitrobenzene

    B) benzene diazonium chloride

    C) phenol

    D) ethyl alcohol

    View Answer play_arrow
  • question_answer132) \[A+{{C}_{6}}{{H}_{5}}COCl\xrightarrow[\text{(Priedel}\,\text{Craft}\,\text{reaction)}]{Anhy\,AlC{{l}_{3}}}\] \[{{C}_{6}}{{H}_{5}}CO{{C}_{6}}{{H}_{5}}\]

    A) \[{{C}_{6}}{{H}_{6}}\]

    B) \[C{{H}_{3}}-C=C-C{{H}_{3}}\]

    C) \[C{{H}_{3}}CH=C{{H}_{2}}\]

    D) \[CH=CH\]

    View Answer play_arrow
  • question_answer133) When excess of ethyl alcohol heated at \[{{140}^{o}}C\]with concentrate sulphuric acid the compound that distills is:

    A) \[{{C}_{2}}{{H}_{5}}-O-{{C}_{2}}{{H}_{5}}\]

    B) ethyl hydrogen sulphate

    C) \[C{{H}_{2}}=C{{H}_{2}}\]

    D) di ethyl sulphate

    View Answer play_arrow
  • question_answer134) Acetamide and urea can be distinguished by employing:

    A) Biurete test

    B) Lucas reagent

    C) Victor Maeyers test

    D) All of these

    View Answer play_arrow
  • question_answer135) When aniline react with \[HN{{O}_{2}}\] \[(NaN{{O}_{2}}+HCl)\] formed diazonium chloride which react \[{{H}_{3}}P{{O}_{2}}\] gives:

    A) \[CH=CH\]

    B) \[{{C}_{6}}{{H}_{6}}\]

    C) \[C{{H}_{2}}=C{{H}_{2}}\]

    D) \[C{{H}_{3}}-C{{H}_{3}}\]

    View Answer play_arrow
  • question_answer136) Paraldehyde is:

    A) a trimer of \[HCHO\]

    B) a trimer of \[C{{H}_{3}}CHO\]

    C) a hexamer of \[HCHO\]

    D) a hexamer of \[C{{H}_{3}}CHO\]

    View Answer play_arrow
  • question_answer137) Phosgene is the common name for:

    A) \[CC{{l}_{4}}\]

    B) \[C{{O}_{2}}+P{{H}_{3}}\]

    C) phosphoryl chloride

    D) carbonyl chloride

    View Answer play_arrow
  • question_answer138) Which of the following reagent is used to distinguish between \[C{{H}_{3}}CHO\]and \[C{{H}_{3}}COC{{H}_{3}}\]?

    A) Semicarbazide

    B) Phenyl hydrazine

    C) Hydroxy amine

    D) Ammonical \[AgN{{O}_{3}}\]

    View Answer play_arrow
  • question_answer139) If chloroform is left open in air in presence of sun-rays:

    A) phosgene gas is formed

    B) explosion takes place

    C) polymerisation take place

    D) no reaction take place

    View Answer play_arrow
  • question_answer140) Which of the following is used to distinguish between acetamide and ammonium acetate?

    A) Reaction with \[FeC{{l}_{3}}\]

    B) Reaction with Fehling solution

    C) Reaction with \[~NaOH\]

    D) None of these

    View Answer play_arrow
  • question_answer141) Which of the following is the weakest base?

    A) \[N{{H}_{3}}\]

    B) \[{{(C{{H}_{3}})}_{2}}NH\]

    C) \[C{{H}_{3}}N{{H}_{2}}\]

    D) \[{{(C{{H}_{3}})}_{3}}N\]

    View Answer play_arrow
  • question_answer142) \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\xrightarrow[{{0}^{o}}-{{5}^{o}}C]{NaN{{O}_{2}}/HCl}{{C}_{6}}{{H}_{5}}{{\overset{+}{\mathop{N}}\,}_{2}}Cl\] \[\xrightarrow[CuS{{O}_{4}}]{KCN}A\] product A is:

    A) \[{{C}_{6}}{{H}_{5}}OH\]

    B) \[{{C}_{6}}{{H}_{5}}HS{{O}_{3}}\]

    C) \[{{C}_{6}}{{H}_{5}}CN\]

    D) \[{{C}_{6}}{{H}_{5}}Cl\]

    View Answer play_arrow
  • question_answer143) The bond present in methane is:

    A) \[4\sigma \] bond and zero \[\pi \] bond

    B) \[4\pi \] bond \[4\pi \] bond

    C) zero \[\sigma \] bond \[4\pi \] bond

    D) none of these

    View Answer play_arrow
  • question_answer144) The possible isomer of \[{{C}_{3}}{{H}_{6}}O\] is:

    A) \[2\]

    B) \[1\]

    C) \[3\]

    D) \[8\]

    View Answer play_arrow
  • question_answer145) Which of the following passage in \[C{{O}_{2}}\] whose does milky of solution?

    A) \[CaO\]

    B) \[Ca{{(OH)}_{2}}\]

    C) \[CaC{{O}_{3}}\]

    D) None of these

    View Answer play_arrow
  • question_answer146) Which electronic configuration of neutral atom will have the highest first potential:

    A) \[1{{s}^{2}},2{{s}^{2}}\text{ }2{{p}^{4}}\]

    B) \[1{{s}^{2}},2{{s}^{2}}\text{ }2{{p}^{1}}\]

    C) \[1{{s}^{2}},2{{s}^{2}}\text{ }2{{p}^{3}}\]

    D) \[1{{s}^{2}},2{{s}^{2}}\text{ }2{{p}^{2}}\]

    View Answer play_arrow
  • question_answer147) Acid group is:

    A) \[O-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-H\]

    B)

    C) \[H-C=O\]

    D) none of these

    View Answer play_arrow
  • question_answer148) The Cannizzaros reaction is not given by:

    A) \[{{C}_{6}}{{H}_{5}}OH\]

    B) \[HCHO\]

    C) \[C{{H}_{3}}CHO\]

    D) trimethyl aldehyde

    View Answer play_arrow
  • question_answer149) Maximum paramagnetism in 3d series is shown by:

    A) \[Co\]

    B) \[Fe\]

    C) \[Ni\]

    D) \[Mn\]

    View Answer play_arrow
  • question_answer150) At \[{{90}^{o}}C\]pure water has \[[{{H}_{3}}{{O}^{+}}]={{10}^{-6}}\] \[mole\text{ }litr{{e}^{-1}},\]the value of \[{{K}_{\omega }}\] at \[{{90}^{o}}C\]is:

    A) \[{{10}^{-14}}\]

    B) \[{{10}^{-12}}\]

    C) \[{{10}^{-8}}\]

    D) \[{{10}^{-6}}\]

    View Answer play_arrow
  • question_answer151) Electron occupy the available sub level which has lower \[(n+l)\] value. This is called:

    A) Aufbau rule

    B) Faults exclusion principle

    C) Hunds rule

    D) Heisenberg uncertainty principle

    View Answer play_arrow
  • question_answer152) The oxidation number of \[Cr\] in \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] is:

    A) \[+6\]

    B) \[-6\]

    C) \[+4\]

    D) \[-4\]

    View Answer play_arrow
  • question_answer153) Which represents nitrolium?

    A) \[CaC{{N}_{2}}+C\]

    B) \[Ca{{C}_{2}}+{{N}_{2}}\]

    C) \[Ca{{(CN)}_{2}}+Ca{{(N{{O}_{3}})}_{2}}\]

    D) None of these

    View Answer play_arrow
  • question_answer154) For \[n=3\]the value of I and m respectively are:

    A) \[3,9\]

    B) \[3,6\]

    C) \[9,3\]

    D) \[6,3\]

    View Answer play_arrow
  • question_answer155) The solvent which is neither proton donor nor proton accepter is called:

    A) protonic

    B) aprotic

    C) amphoteric

    D) neutral

    View Answer play_arrow
  • question_answer156) Which is not permissible sub shell:

    A) \[3s\]

    B) \[4f\]

    C) \[6p\]

    D) \[2d\]

    View Answer play_arrow
  • question_answer157) Which have high penetrating power?

    A) \[\alpha \] rays

    B) \[\beta \] rays

    C) \[\gamma \] rays

    D) none of these

    View Answer play_arrow
  • question_answer158) Alkali metals are characterized by:

    A) high melting points

    B) high ionization potential

    C) low oxidation potential

    D) good conductor of heat and electricity

    View Answer play_arrow
  • question_answer159) How many \[\pi \] bond are there in \[C{{O}_{2}}\]molecule?

    A) \[2\pi \] bond

    B) \[4\pi \] bond

    C) \[3\pi \]bond

    D) zero

    View Answer play_arrow
  • question_answer160) In benzene \[C-C\]bond length than acetylene will be:

    A) higher

    B) lower

    C) middle

    D) none of these

    View Answer play_arrow
  • question_answer161) \[[{{H}^{+}}]\] ion concentration in water is:

    A) \[0\]

    B) \[1\times {{10}^{-7}}\]

    C) \[7\]

    D) \[1/4\]

    View Answer play_arrow
  • question_answer162) Which of the following is paramagnetic?

    A) \[{{O}_{2}}^{-}\]

    B) \[C{{H}_{3}}\]

    C) \[CO\]

    D) \[N{{O}^{+}}\]

    View Answer play_arrow
  • question_answer163) The IUPAC name of \[C{{H}_{3}}-\overset{C{{H}_{2}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-\overset{Cl}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-C{{H}_{3}}\]is:

    A) 3-chloro-5-methyl 2-hexanon

    B) 5-methyl -3 chloro 2-hexanon

    C) both (a) and (b)

    D) none of these

    View Answer play_arrow
  • question_answer164) Select the correct order of the strength of acids given below:

    A) \[HCl{{O}_{4}}<HCl{{O}_{3}}<HClO<HCl{{O}_{2}}\]

    B) \[HCl{{O}_{4}}<HCl{{O}_{3}}<HCl{{O}_{2}}<HClO\]

    C) \[HClO<HCl{{O}_{2}}<HCl{{O}_{3}}<HCl{{O}_{4}}\]

    D) none of these

    View Answer play_arrow
  • question_answer165) Effect of catalyst in any reaction is:

    A) the rate of reaction increases

    B) reactant increases

    C) product increases

    D) none of these

    View Answer play_arrow
  • question_answer166) Which of the following has fractional bond order?

    A) \[{{H}_{2}}^{2+}\]

    B) \[{{O}_{2}}^{2-}\]

    C) \[{{O}_{2}}^{2+}\]

    D) \[{{F}_{2}}^{2-}\]

    View Answer play_arrow
  • question_answer167) Which of the base of \[C{{H}_{3}}COOH\]?

    A) \[C{{H}_{3}}CO{{O}^{-}}\]

    B) \[C{{H}_{3}}COOH\]

    C) both (a) and (b)

    D) None of these

    View Answer play_arrow
  • question_answer168) \[2\text{ }moles\]of \[PC{{l}_{5}}\] were heated in a closed vessels of 2 litre capacity at equilibrium 40% of \[PC{{l}_{5}}\] dissociated in \[PC{{l}_{3}}\] and \[C{{l}_{2}}\]. The value of the equilibrium constant is:

    A) \[2.67\]

    B) \[5.3\]

    C) \[0.53\]

    D) \[0.267\]

    View Answer play_arrow
  • question_answer169) \[\pi \] bond in \[{{N}_{2}}\] is:

    A) \[2\]

    B) \[3\]

    C) \[1\]

    D) zero

    View Answer play_arrow
  • question_answer170) The screening effect of d-electrons is:

    A) less than p-electron

    B) more than p-electron

    C) equal to the p-electron

    D) same as p-electron

    View Answer play_arrow
  • question_answer171) The purpose of smelting of an ore is:

    A) to separate volatile impurities

    B) to reduce it

    C) to oxidize it

    D) to obtain an alloy

    View Answer play_arrow
  • question_answer172) When \[FeC{{l}_{3}}\] react with acetate which colour is obtained?

    A) Blood colour

    B) Colorless

    C) Red

    D) Yellow

    View Answer play_arrow
  • question_answer173) One among the following is incorrect order in increasing ionisation energy:

    A) \[Ka<Ca<Cs\]

    B) \[Au<Ag<Cu\]

    C) \[C{{l}^{-}}<Ar<{{K}^{+}}\]

    D) \[Cs<RB<K\]

    View Answer play_arrow
  • question_answer174) The equilibrium constants for equilibria: \[S{{O}_{2}}(g)+\frac{1}{2}{{O}_{2}}(g)S{{O}_{3}}(g)\] and \[2S{{O}_{2}}(g)+{{O}_{2}}(g)2S{{O}_{3}}(g)\] are \[{{K}_{1}}\] and \[{{K}_{2}}\] respectively, then:

    A) \[{{K}_{2}}={{K}_{1}}^{2}\]

    B) \[{{K}_{2}}=\frac{1}{{{K}_{{{1}^{2}}}}}\]

    C) \[{{K}_{2}}={{K}_{1}}\]

    D) \[{{K}_{2}}=\frac{1}{{{K}_{1}}}\]

    View Answer play_arrow
  • question_answer175) The bond angle in \[P{{H}_{3}}\] is:

    A) slightly more than \[N{{H}_{3}}\]

    B) much greater than \[N{{H}_{3}}\]

    C) equal to that of \[N{{H}_{3}}\]

    D) much less than \[N{{H}_{3}}\]

    View Answer play_arrow
  • question_answer176) Of the solubility product \[{{K}_{sp}}\] of a sparingly soluble salt \[A{{X}_{2}}\] at \[{{25}^{o}}C\]is \[1\times {{10}^{-11}}\]. The solubility of the salt in mole \[litr{{e}^{-1}}\]at this temperature will be:

    A) \[1.20\times {{10}^{-10}}\]

    B) \[1.36\times {{10}^{-4}}\]

    C) \[2.60\times {{10}^{-7}}\]

    D) \[2.46\times {{10}^{14}}\]

    View Answer play_arrow
  • question_answer177) In acidic medium phenolphthalien gives:

    A) red colour

    B) yellow colour

    C) colorless

    D) blue colour

    View Answer play_arrow
  • question_answer178) Heavy water is:

    A) \[{{H}_{2}}O\]

    B) \[{{D}_{2}}O\]

    C) both (a) and (b)

    D) none of these

    View Answer play_arrow
  • question_answer179) Hydrogen can be placed in halogen group because:

    A) It contains one electron only

    B) It forms hydrides like chloride

    C) It is light

    D) It has isotopes D and T

    View Answer play_arrow
  • question_answer180) The correct representation of solubility product of \[Sn{{S}_{2}}\] is:

    A) \[[S{{n}^{4+}}]\,[2{{S}^{2-}}]\]

    B) \[[S{{n}^{4+}}]\,[{{S}^{2-}}]\]

    C) \[[S{{n}^{4+}}]\,{{[2{{S}^{2+}}]}^{2}}\]

    D) \[[S{{n}^{4+}}]\,{{[{{S}^{2-}}]}^{2}}\]

    View Answer play_arrow
  • question_answer181) The minimum real charge on any particle which can exist is:

    A) \[4.8\times {{10}^{-10}}\]coulomb

    B) \[1.6\times {{10}^{-19}}\]coulomb

    C) \[1.6\times {{10}^{-10}}\]coulomb

    D) zero

    View Answer play_arrow
  • question_answer182) Hydrolysis of product which formed reaction between ketone and G.R. gives:

    A) \[(C{{H}_{3}})CHO\]

    B) \[{{C}_{2}}{{H}_{5}}OH\]

    C) \[C{{H}_{3}}OH\]

    D) none of these

    View Answer play_arrow
  • question_answer183) The first organic compound urea was synthesised by in the laboratory:

    A) Berzilius

    B) Wohler

    C) Kolbe

    D) None of these

    View Answer play_arrow
  • question_answer184) In d-subshell electron is:

    A) less than p

    B) equal to p

    C) more than s

    D) more than f

    View Answer play_arrow
  • question_answer185) When react with \[{{H}_{2}}O\] gives:

    A) \[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\]

    B) \[C{{H}_{3}}COOH\]

    C) \[{{C}_{2}}{{H}_{5}}OH\]

    D) None of these

    View Answer play_arrow
  • question_answer186) Diethyl ether decomposes on heating with:

    A) \[{{H}_{2}}O\]

    B) \[KMn{{O}_{4}}\]

    C) \[HI\]

    D) \[NaOH\]

    View Answer play_arrow
  • question_answer187) Alkynes shows:

    A) substitution reaction

    B) polymerization

    C) electrophilic addition reaction

    D) all of the above

    View Answer play_arrow
  • question_answer188) The hydrogen ion concentration in a solution of weak acid of dissociation constant \[{{K}_{a}}\] and concentration C is nearly equal to:

    A) \[{{K}_{a}}.C\]

    B) \[C/{{K}_{a}}\]

    C) \[\sqrt{{{K}_{a}}.C}\]

    D) \[\sqrt{{{K}_{a}}/C}\]

    View Answer play_arrow
  • question_answer189) Alkaline earth metals salts are:

    A) paramagnetic

    B) diamagnetic

    C) ferromagnetic

    D) all of these

    View Answer play_arrow
  • question_answer190) The weakest acid among the following is:

    A) \[HF\]

    B) \[HBr\]

    C) \[HI\]

    D) \[HCl\]

    View Answer play_arrow
  • question_answer191) Magnetic quantum number specifies:

    A) orientation of orbitals in space

    B) size of orbitals

    C) shape of orbitals

    D) spin of the electron

    View Answer play_arrow
  • question_answer192) Which of the following is less soluble in water?

    A) \[Bi{{S}_{3}}(Ksp=1\times {{10}^{-70}})\]

    B) \[A{{g}_{2}}S(Ksp=6\times {{10}^{-51}})\]

    C) \[ZnS(Ksp=7\times {{10}^{-16}})\]

    D) \[MnS(KSP=8\times {{10}^{-37}})\]

    View Answer play_arrow
  • question_answer193) Rusting of iron m moist air involves:

    A) loss of electron by \[Fe\]

    B) gain of electron by \[Fe\]

    C) hydration of \[Fe\]

    D) neither gain nor loss electron by \[Fe\]

    View Answer play_arrow
  • question_answer194) The mass of neutron is of the order of:

    A) \[{{10}^{-27}}kg\]

    B) \[{{10}^{-26}}kg\]

    C) \[{{10}^{-24}}kg\]

    D) \[{{10}^{-23}}kg\]

    View Answer play_arrow
  • question_answer195) The isomerism exhibited by n-butyl alcohol and isobutyl alcohol is:

    A) metamerism

    B) position isomerism

    C) chain isomerism

    D) functional isomerism

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  • question_answer196) Product A is:

    A) \[C{{H}_{3}}CO{{C}_{2}}{{H}_{5}}\]

    B) \[C{{H}_{3}}COOC{{H}_{3}}\]

    C) \[C{{H}_{3}}C{{H}_{2}}COO{{C}_{2}}{{H}_{5}}\]

    D) \[C{{H}_{2}}C{{H}_{2}}COOH\]

    View Answer play_arrow
  • question_answer197) \[X\xrightarrow[{{O}_{3}}]{Ozonolysis}C{{H}_{3}}CHO+C{{H}_{3}}C{{H}_{2}}CHO.\] X is:

    A) 2-butene

    B) 2-pentene

    C) 1-pentene

    D) 1-butene

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  • question_answer198) Urea is not used:

    A) in the preparation of medicines

    B) in purification of water

    C) as fertilizer

    D) in manufacture of plastic

    View Answer play_arrow
  • question_answer199) Which pair represents chain isomers?

    A) 2-methyl butane and neopentane

    B) \[C{{H}_{3}}CHC{{l}_{2}}\]and \[ClC{{H}_{2}}C{{H}_{2}}Cl\]

    C) Dethyl ether and propyl ether

    D) Propyl alcohol and isopropyl alcohol

    View Answer play_arrow
  • question_answer200) Hydrogen bromide is added to \[C{{H}_{3}}CH=C{{H}_{2}}\]in the presence of peroxide. The resultant compound formed is:

    A) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Br\]

    B) \[C{{H}_{3}}CHBr.C{{H}_{3}}\]

    C) \[{{C}_{2}}{{H}_{5}}C{{H}_{2}}Br\]

    D) none of these

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  • question_answer201) Giraffe is common animal of:

    A) desert

    B) savannah

    C) rain forest

    D) praire

    View Answer play_arrow
  • question_answer202) Conversion of PEP to pyruvate is influenced by:

    A) \[M{{g}^{+++\,}}\]\[C{{a}^{+\,}}\]

    B) \[N{{a}^{++\,}}+C{{a}^{++}}\]

    C) \[{{K}^{+\,}}+C{{1}^{-}}\]

    D) \[M{{g}^{++\,}}+{{K}^{+}}\]

    View Answer play_arrow
  • question_answer203) Dihydroxy acetone is formed by catalysis of the following enzymes :

    A) aldolase

    B) PFK

    C) PEPCK

    D) phosphoglucoisomerase

    View Answer play_arrow
  • question_answer204) Which one have lophophore?

    A) Waldeimia

    B) Wallago

    C) Wall lizard

    D) Heart urchin

    View Answer play_arrow
  • question_answer205) Which animal is roofed terrapin?

    A) Trionys

    B) Kachuga tectum

    C) Chrysemys

    D) Chelone

    View Answer play_arrow
  • question_answer206) In man erythrocytes are found in:

    A) 0.5 million per microliter

    B) 8.0 million per microliter

    C) 5.0 million per microliter

    D) 10-0 million per microliter

    View Answer play_arrow
  • question_answer207) Which one of the following acts on local messenger?

    A) Carrier protein

    B) Glycoprotein

    C) Phospholipid

    D) Nitric oxide

    View Answer play_arrow
  • question_answer208) Oxytocin is released from :

    A) hypothalamus

    B) adenohypophysis (posterior lobe)

    C) adenohypophysis (anterior lobe)

    D) neurohypophysis

    View Answer play_arrow
  • question_answer209) What is the molecular weight to insulin?

    A) 6000

    B) 5000

    C) 4000

    D) 15000

    View Answer play_arrow
  • question_answer210) Parathormone controls :

    A) calcium and phosphate metabolism

    B) Na and K metabolism

    C) fatty acid metabolism

    D) protein metabolism

    View Answer play_arrow
  • question_answer211) Which one is detritus feeder?

    A) Parrot

    B) Unio

    C) Dung beetle

    D) Sheep

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  • question_answer212) Cortical granules are associated with :

    A) fertilization

    B) sperma to genesis

    C) oogenes is

    D) cleavage

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  • question_answer213) Which of the following type of egg is found in Frog?

    A) Isolecithal

    B) Centrolecithal

    C) Oligolecithal

    D) Teleolecithal

    View Answer play_arrow
  • question_answer214) The number of eggs in ootheca of Cockroach is :

    A) 8

    B) 16

    C) 32

    D) 64

    View Answer play_arrow
  • question_answer215) Mentomeckelian is specially characteristic bone of:

    A) Raw tigrina

    B) Equns

    C) Bos indicus

    D) Felis domesticus

    View Answer play_arrow
  • question_answer216) Which one of the following animal contains idiophores in its integument?

    A) Dog fish

    B) Parrot

    C) Siren

    D) Orangeutan

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  • question_answer217) In both chordates and non-choradates intestine develops from :

    A) ectoderm

    B) pharyngeal pouch

    C) endoderm

    D) mesoderm

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  • question_answer218) In which of the following mosaic cleavage occurs?

    A) Echinococcus granulosus

    B) Camel

    C) Whale

    D) Dog fish

    View Answer play_arrow
  • question_answer219) In which one moeroblastic segmentation is found:

    A) Dog

    B) Monkey

    C) Owl

    D) Rhinoceros

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  • question_answer220) Km is related to :

    A) morphometry

    B) ABO blood group

    C) ES complex

    D) chroma tography

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  • question_answer221) Platelet plug is associated with :

    A) hcmostasis

    B) clot retraction

    C) fibrin formation

    D) homcostasis

    View Answer play_arrow
  • question_answer222) In Rabbit what is the number of spinal nerves?

    A) 37

    B) 30

    C) 32

    D) 38

    View Answer play_arrow
  • question_answer223) Which one of the following mouth parts arc found in Cockroach?

    A) Cutting and chewing

    B) Piercing

    C) Sucking

    D) Drilling

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  • question_answer224) In Periplaneta the cuticular lipid is secreted by:

    A) hypudermal cells

    B) oenocyte cells

    C) dermal gland cells

    D) basal ceils

    View Answer play_arrow
  • question_answer225) In Pheretima blood glands are found in which of the following segments?

    A) 1, 2, 3

    B) 7, 8, 9

    C) 4, 5, 6

    D) 10, 11, 12

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  • question_answer226) How many lateral hearts are in Pheretima?

    A) 12

    B) 16

    C) 8

    D) 4

    View Answer play_arrow
  • question_answer227) Which one of the following is holotype ?

    A) Oesophagostomum apiostomum

    B) Osophagostomum columbianum

    C) Oesophagostomum radiatum

    D) Oesophygostomum venulosm

    View Answer play_arrow
  • question_answer228) Which one of the following is first nematode parasite to be discovered ?

    A) Enterobius vermicularis

    B) Ancylostoma duodenale

    C) Ascaris lumbicoides

    D) Dracunculus medinensis

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  • question_answer229) Excretory system of Ascaris lumbricoides is made up of:

    A) single cell

    B) many cells

    C) four cells

    D) two cells

    View Answer play_arrow
  • question_answer230) What is the length of male Ascaris lumbricoides is ?

    A) 50-60 mm

    B) 100-200 mm

    C) 150-310 mm

    D) 160-315 mm

    View Answer play_arrow
  • question_answer231) Cyclin is associated with which one of the following?

    A) Haemolysis

    B) Mitosis

    C) Glycolysis

    D) Cyclosis

    View Answer play_arrow
  • question_answer232) In which one of the following white ghost are found?

    A) Lymphocytes

    B) Thrombocytes

    C) Choanocytes

    D) Erythrocytes

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  • question_answer233) Which one of the following is energy supplier ?

    A) GALT

    B) MALT

    C) MAB

    D) UTP

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  • question_answer234) Which one of the following is pernicious quotidian, malignant and tropical malarial parasite?

    A) Plasmodium vivax

    B) Plasmodium falciparum

    C) Plasmodium berghei

    D) Plasmodium yolii

    View Answer play_arrow
  • question_answer235) Which one of the following is associated with osmoregulation in Amoeba ?

    A) Plasma membrane

    B) Contractile vacuole

    C) Mitochondria

    D) Endoplasm

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  • question_answer236) In Entamoeba histolytica cytochromes are found in which one of the following?

    A) Ectoplasm

    B) Mitochondria

    C) Endoplasmic reticulum

    D) Endoplasm

    View Answer play_arrow
  • question_answer237) In case of Amoeba proteus which temperature is optimum ?

    A) \[5{}^\circ C\text{ }to\text{ }10{}^\circ C\]

    B) \[20{}^\circ C\text{ }to\text{ }25{}^\circ C\]

    C) \[15{}^\circ C\text{ }to\text{ }16{}^\circ C\]

    D) \[30{}^\circ C\text{ }to\text{ }35{}^\circ C\]

    View Answer play_arrow
  • question_answer238) Apparatus reticulo interno was discovered by Golgi in which year :

    A) 1898

    B) 1850

    C) 1900

    D) 1925

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  • question_answer239) Synaptonemal complex was discovered in :

    A) 1955

    B) 1950

    C) 1980

    D) 1935

    View Answer play_arrow
  • question_answer240) How many ATP are required during anaphase to move chromosomes from equator to the poles?

    A) 38 ATP

    B) 5 ATP

    C) 30 ATP

    D) 76 ATP

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  • question_answer241) What is the diameter of stenotypes?

    A) 16 microns

    B) 25 microns

    C) 10 microns

    D) 5 microns

    View Answer play_arrow
  • question_answer242) Hydra belongs to which of the following?

    A) Biradially symmetrical

    B) Radially symmetrical and coelomate

    C) Coelomate and bilaterally symmetrical

    D) Radially symmetrical and acoelomate

    View Answer play_arrow
  • question_answer243) In Plasmodium which one of the following is not distinct?

    A) Mitrochondria

    B) Golgi body

    C) Cilia

    D) Nucleus

    View Answer play_arrow
  • question_answer244) Which one of the following is ionic detergent?

    A) PEG

    B) HAT

    C) SDS

    D) RPM

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  • question_answer245) Which one of the following is dominant intracellular anion?

    A) Chloride

    B) Potassium

    C) Phosphate

    D) Calcium

    View Answer play_arrow
  • question_answer246) Zinc is associated with:

    A) Immunization

    B) Glycosylation

    C) Sulfation

    D) Transcription

    View Answer play_arrow
  • question_answer247) Which one of the following percentage is of bound water in protoplasm ?

    A) 1-2%

    B) 4-5%

    C) 60-65%

    D) 90-95%

    View Answer play_arrow
  • question_answer248) Which animal is Surinam toad?

    A) Pipa

    B) Bufo

    C) Bombimntor

    D) Alyte

    View Answer play_arrow
  • question_answer249) Membrane attack complex (MAC) is formed by :

    A) B-lymphocytes

    B) compliments

    C) macrophages

    D) T-lymphocytes

    View Answer play_arrow
  • question_answer250) Which animal is eukaryotic unicellular?

    A) Synapta

    B) Sun animalcule

    C) Mitre-Jelly fish

    D) Sea lemon

    View Answer play_arrow
  • question_answer251) In which of the following class polymorphism is very distinct?

    A) Class-Euccstoda

    B) Class-Hydrozoa

    C) Class-Crinoidea

    D) Class-Gastropoda

    View Answer play_arrow
  • question_answer252) Which of the following annelid is most (modified?

    A) Arenicola

    B) Chaetopterus

    C) Pontobdella

    D) Hirudomedicmalis

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  • question_answer253) Which one of the following character (differentiate man from other mammals?

    A) Social life

    B) Greater cranial capacity

    C) Superior intelligence

    D) Power of speech

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  • question_answer254) Which one of the following animal is protostome?

    A) Aconworm

    B) Sping skinned animal

    C) Amphitrehus

    D) (e) Echidna

    View Answer play_arrow
  • question_answer255) Which one of the following animal is not deuterostome?

    A) Ambystoma

    B) Ambhilina

    C) Anguilla

    D) Amphiuma

    View Answer play_arrow
  • question_answer256) From substrate level phosphortyation ATP are produced :

    A) 2

    B) 6

    C) 10

    D) 8

    View Answer play_arrow
  • question_answer257) Which pollutant accumulates in liver and kidney

    A) Cadmium

    B) Lead

    C) Mercury

    D) Copper

    View Answer play_arrow
  • question_answer258) Which one is a commensalism?

    A) Euspongia

    B) Jelly fish

    C) Silkworm

    D) Bonellia female

    View Answer play_arrow
  • question_answer259) Norepinephrin is secreted from:

    A) medulla of adrenal

    B) zona fasciculate

    C) zona reticularis

    D) zona glomerulosa

    View Answer play_arrow
  • question_answer260) Thymosine stimulates:

    A) milk secretion

    B) erythrocytes

    C) T-lymphocytes

    D) melanocytes

    View Answer play_arrow
  • question_answer261) FSH is:

    A) glycoprotein

    B) phospholipid

    C) glycolipid

    D) metalloprotein

    View Answer play_arrow
  • question_answer262) Prostaglandins affect:

    A) blood pressure

    B) defecation

    C) osmoregulation

    D) oxygen metabolism

    View Answer play_arrow
  • question_answer263) What is the molecular weight of phosvitin?

    A) 3500

    B) 4000

    C) 6000

    D) 10000

    View Answer play_arrow
  • question_answer264) Which one of the following scientist has written latest book on developmental biology?

    A) Balinansky

    B) Gilbert

    C) Baer

    D) Lilly

    View Answer play_arrow
  • question_answer265) Which one of the following egg is found in Cockroach?

    A) Alecithal

    B) Microlecithal

    C) Centrolecithal

    D) Oligolecithal

    View Answer play_arrow
  • question_answer266) Reten mirabiles are found in which animal?

    A) Elephant

    B) Whale

    C) Ox

    D) Tiger

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  • question_answer267) Nervous system develops from :

    A) ectoderm

    B) endomesoderm

    C) mesoderm

    D) ectomesoderm

    View Answer play_arrow
  • question_answer268) In indeterminate cleavage the fate of blastomeres is fixed at which of (the following stage?

    A) Blastula

    B) Gastrulation

    C) 32-celled stage

    D) 64-celled stage

    View Answer play_arrow
  • question_answer269) With which of the following first quarter of micromeres are associated?

    A) determinate cleavage

    B) larvation

    C) hatching

    D) indeterminate cleavage

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  • question_answer270) Which one of the following is both hormone and enzyme?

    A) ADH hormone

    B) Acetycholinesterase

    C) Angiotensinogen

    D) Rennin

    View Answer play_arrow
  • question_answer271) Which of the following hormones induce secretion of succus entericus?

    A) Insulin

    B) Secretin and cholecystokinin

    C) Glucagon

    D) Secretin

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  • question_answer272) Which of the following nerve innervates upper jaw of frog?

    A) Maxillary

    B) Pathetic

    C) Palatine

    D) Occulomotor

    View Answer play_arrow
  • question_answer273) How many Malpighian tubules in Cockroach are present?

    A) 80-90

    B) 100-150

    C) 50-60

    D) 200-250

    View Answer play_arrow
  • question_answer274) In pheretian lymph gland produces :

    A) lymphocyte cells

    B) phagocyte cells

    C) oxyntic cells

    D) amoeboryte cells

    View Answer play_arrow
  • question_answer275) In Pheretima mouth develops from which of the following?

    A) Ectoderm

    B) Mesoderm

    C) Blastopore

    D) Kndoderm

    View Answer play_arrow
  • question_answer276) In Pheretima which nephridia is present?

    A) Protonephridia

    B) Coelom duct

    C) Micro-metanephridia

    D) Solenocytes

    View Answer play_arrow
  • question_answer277) Muscle cells of Ascaris are arranged in :

    A) coclomyarian

    B) platymydrian

    C) polymynrian

    D) holomyarian

    View Answer play_arrow
  • question_answer278) What is the length of female Ascaris lumbricoides?

    A) 200-350 mm

    B) 150-320 mm

    C) 100-150 mm

    D) 50-80 mm

    View Answer play_arrow
  • question_answer279) How many nucteosomes are found in helical coil of 30 nm chromatin fibre ?

    A) 6

    B) 10

    C) 12

    D) 9

    View Answer play_arrow
  • question_answer280) Temin worked on which virus?

    A) Rhinovirus

    B) Herpesvirus

    C) Retrovirus

    D) Dengurvirus

    View Answer play_arrow
  • question_answer281) Which one of the following peak absorption of ultraviolet light by heterocyclic bases (nitrogen bases)?

    A) 26 nm

    B) 1500 nm

    C) 75 nm

    D) 260 nm

    View Answer play_arrow
  • question_answer282) Which stage of Plasmodium contains rhoptries?

    A) Sporozoite

    B) Merozoite

    C) Signetring stage

    D) Ookinete

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  • question_answer283) What is the chromosome number of Plasmodium?

    A) 9

    B) 14

    C) 10

    D) 4

    View Answer play_arrow
  • question_answer284) In Amoeba who gave contraction hydraulic theory?

    A) Schultze

    B) Claude

    C) Simpson

    D) Swan

    View Answer play_arrow
  • question_answer285) In Entamoeba histolytica intestinal ulceration is caused by which one of the following?

    A) Metacystic trophozoites

    B) Binucleate stage

    C) Tetranucleate stage

    D) Trophozoites

    View Answer play_arrow
  • question_answer286) Which one of the following energy storing compound is formed when succinyl CoA is converted into succinic acid ?

    A) ATP

    B) ADP

    C) AMP

    D) GTP

    View Answer play_arrow
  • question_answer287) In which one of the following mitochondrial cristae are in concentric form?

    A) Spirogyra

    B) Euglena

    C) Retina of tree shrew

    D) Salivary gland of Limnea

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  • question_answer288) Recombinant nodules are found during which of the following?

    A) Prophase

    B) Anaphase

    C) Telophase

    D) Metaphase

    View Answer play_arrow
  • question_answer289) Which type of reproduction is found in Hydra?

    A) Polyembryony

    B) Sexual and asexual

    C) Parthenogenesis

    D) Encystment

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  • question_answer290) Which one of the following scientist coined the name Hydra ?

    A) Rudulphi

    B) Hyman

    C) Linnaeus

    D) Grobben

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  • question_answer291) In which city Ronald Ross worked for malarial parasite?

    A) Delhi

    B) Calcutta

    C) Hyderabad

    D) Madras

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  • question_answer292) Manganese is associated which enzymes?

    A) Lipase

    B) Transformylase

    C) Peptidase

    D) Carboxyhydrolase

    View Answer play_arrow
  • question_answer293) Which one of the following percentage of inorganic salt in the protoplasm?

    A) 5-7%

    B) 2-3%

    C) 0.1-2.5%

    D) 50-60%

    View Answer play_arrow
  • question_answer294) Which one of the following is a primary phosphate in a cell?

    A) \[{{H}_{2}}PO\,{{_{4}^{+}}^{++}}\]

    B) \[{{H}_{2}}PO\,{{_{4}^{-}}^{{}}}\]

    C) \[{{H}_{2}}PO\,{{_{4}^{-}}^{-}}\]

    D) \[{{H}_{2}}PO\,{{_{4}^{+}}^{-}}\]

    View Answer play_arrow
  • question_answer295) Iron is present in which one of the following?

    A) Catalyze

    B) Glycoprotein

    C) Muck-in

    D) Lectin

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  • question_answer296) National bird of India is:

    A) Pavo cristatus

    B) Flamingo

    C) Cohimba livia

    D) Psittncitia

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  • question_answer297) What is the molecular weight of IgG antibody?

    A) 146, 000

    B) 160, 000

    C) 190. 000

    D) 200, 000

    View Answer play_arrow
  • question_answer298) Which one of the following animal has rhabdites?

    A) Syllis

    B) May fly

    C) tse-tse fly

    D) Dugesia

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  • question_answer299) Which animal has pseudocoelom ?

    A) Dragon fly

    B) Amia

    C) Wuchereria bancrftii

    D) Lapisma

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  • question_answer300) Which animal Aristotles lantern found?

    A) Strongylocentrotus

    B) Sea urchin

    C) Sea mouse

    D) Sea horse

    View Answer play_arrow
  • question_answer301) Oxidative phosphorylation occurs in which of the following?

    A) Outer membrane of mitochondria

    B) Matrix of mitochondria

    C) Inner membrane of mitochondria

    D) Inter membrane

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  • question_answer302) The zygote of Ulothrix is:

    A) quadriflagellate

    B) biflagellate

    C) uniflagellate

    D) aflagellate

    View Answer play_arrow
  • question_answer303) Heterochromatin remains condensed in which part of chromosome?

    A) Secondary construction-I

    B) Secondary construction-II

    C) Telomeres

    D) Both (a) and (b)

    View Answer play_arrow
  • question_answer304) The maximum growth of plants occurs during:

    A) summer

    B) winter

    C) autumn

    D) spring

    View Answer play_arrow
  • question_answer305) Mitochondria remains absent in:

    A) Chlorophyceac

    B) Myxophyceae

    C) Fungal cell

    D) Mesophyll cell

    View Answer play_arrow
  • question_answer306) Trachcids differs from vessels in having :

    A) thick wall

    B) bordered pits

    C) discontinuous intercalary wall

    D) spiral thickening

    View Answer play_arrow
  • question_answer307) The vascular bundles in Cucurbita are:

    A) radial

    B) collateral

    C) bicollateral

    D) concentric

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  • question_answer308) Which of the following causes delay in senescence?

    A) Cytokinin

    B) Auxins

    C) Gibberellins

    D) ABA

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  • question_answer309) Commercial cork is obtained from:

    A) Quercus

    B) Oak

    C) Pine

    D) Peepal

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  • question_answer310) Bost fibres obtains from which part of the stem?

    A) Cork

    B) Cortex

    C) Xylem

    D) Phloem

    View Answer play_arrow
  • question_answer311) The growth in diameter of stem is due to:

    A) cambium

    B) xylem

    C) phloem

    D) shoot apex

    View Answer play_arrow
  • question_answer312) The non porous wood is present in which of the following?

    A) Dicots

    B) Monocots

    C) Gymnosperms

    D) Cactus

    View Answer play_arrow
  • question_answer313) In dorsiventral leaf phloem is situated towards the:

    A) adaxial side

    B) abaxial side

    C) lateral side

    D) both (a) and (b)

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  • question_answer314) Monothecous anther is the characteristic of:

    A) Malvaceae

    B) Liliaceae

    C) Brassicaceae

    D) Solanaceae

    View Answer play_arrow
  • question_answer315) The onagrad type embryo development is found in :

    A) Solanum

    B) Capsella

    C) Lilium

    D) Hibiscus

    View Answer play_arrow
  • question_answer316) In Capsella embryosac is :

    A) diploid

    B) haploid

    C) tetrasporic

    D) trisporic

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  • question_answer317) Rauwolfin obtains from which part of the plant?

    A) Stem

    B) Root

    C) Fruit

    D) Leaf

    View Answer play_arrow
  • question_answer318) In polygonum type embryosac, all the cells are :

    A) haploid

    B) diploid

    C) both (a) and (b)

    D) haploid and polyploidy

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  • question_answer319) Which of the following is not visible through electron microscope in Chlamydomonas?

    A) Contractile vacuole

    B) Stigma

    C) Neuromotor apparatus

    D) All of the above

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  • question_answer320) The inner most membrane of gram (-) negative bacteria is consist of:

    A) mucopeptide

    B) lipoprotein

    C) phospholipid

    D) lipopolysaccharides

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  • question_answer321) Which type of placentation is found in family Fabaceae?

    A) Axile

    B) Marginal

    C) Perietal

    D) Basal

    View Answer play_arrow
  • question_answer322) The floral formula of family Malvaceae is:

    A) \[{{K}_{4}}{{C}_{4}}{{A}_{5}}{{G}_{(2)}}\]

    B) \[{{K}_{2+2}}{{C}_{4}}{{A}_{2+6}}{{G}_{(2)}}\]

    C) \[{{K}_{(5)}}{{C}_{4}}{{A}_{4}}{{G}_{(5)}}\]

    D) \[{{K}_{(5)}}{{\overset\frown{{{C}_{5}}A}}_{(5-\infty )}}{{G}_{(\infty )}}\]

    View Answer play_arrow
  • question_answer323) Ferula assafoetida is the main source of:

    A) Haldi

    B) Heeng

    C) Heroin

    D) Opium

    View Answer play_arrow
  • question_answer324) In meiotic division the DNA synthesis takes place in :

    A) S-phase

    B) S-phase or leptotene phase

    C) M-phase and zygotene

    D) all of the above

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  • question_answer325) Thigmotropism occurs due to the:

    A) light

    B) contact

    C) temperature

    D) pressure

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  • question_answer326) The sporogenous tissue is originated from amphithecium in which of the following ?

    A) Riccia

    B) Marchantia

    C) Anthoceros

    D) Funaria

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  • question_answer327) The number of chromosome in an egg is 10. The number of chromosomes in anaphase will be :

    A) 10

    B) 20

    C) 30

    D) 40

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  • question_answer328) Microsporangium of Cycas is placed in which of the following manner on microsporophyll?

    A) Marginal

    B) Adaxial

    C) Abaxial

    D) Lateral

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  • question_answer329) The process of DNA-synthesis is called as:

    A) translation

    B) transformation

    C) transduction

    D) replication

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  • question_answer330) The longest plant cell is:

    A) fibre

    B) vessel

    C) tracheid

    D) sieve tube

    View Answer play_arrow
  • question_answer331) Nucleolar chromatic have gene for which of the following?

    A) r-DNA

    B) Z-DNA

    C) SAT-DNA

    D) B-DNA

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  • question_answer332) The maximum amount of calcium pectate is present in:

    A) (n) primary cell wall

    B) secondary cell wall

    C) middle lamella

    D) cell membrane

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  • question_answer333) The plant cell wall is:

    A) semi-permeable

    B) permeable

    C) impermeable

    D) selectively permeable

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  • question_answer334) Cell organelle are present in:

    A) nucleoplasm

    B) cytoplasm

    C) hyluplasm

    D) none of these

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  • question_answer335) Cell theory was proposed by:

    A) Robert Hook

    B) Schneider and Schwann

    C) Brawn

    D) Leeuwenhoek

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  • question_answer336) The membrane less cell organelle is:

    A) golgi body

    B) chloroplast

    C) endoplasmic reticulum

    D) ribosome

    View Answer play_arrow
  • question_answer337) The enzyme ATP are remains active in:

    A) head piece of \[{{F}_{1}}\]

    B) base piece of \[{{F}_{1}}\]

    C) circle of \[{{F}_{2}}\]

    D) all of the above

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  • question_answer338) Cellulose is a polymer of:

    A) glucose

    B) fructose

    C) galactose

    D) mannose

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  • question_answer339) Which of the following has their own DNA?

    A) Ribosome

    B) Dictyosome

    C) Microsome

    D) Chloroplast

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  • question_answer340) Krebs cycle takes place in:

    A) inner membrane of mitochondria

    B) outer membrane of mitochondria

    C) matrix of mitochondria

    D) inter membranous space

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  • question_answer341) Plant cell is differ from animal cell due to the presence of:

    A) chlorophyll

    B) mitochondria

    C) cellulosic cell wall

    D) large size

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  • question_answer342) The mosaic condition of cell membrane can be proved by :

    A) electroforetic study

    B) auto radiography

    C) french-inch-technology

    D) none of the above

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  • question_answer343) Which of the following is not a micronutrient?

    A) Cu

    B) Mg

    C) B

    D) \[C{{l}_{2}}\]

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  • question_answer344) The element which is found in the structure of chlorophyll molecule ?

    A) Fe

    B) Mg

    C) K

    D) Mn

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  • question_answer345) Photophosphorylation is found in:

    A) outer membrane of chloroplast

    B) inner membrane of chloroplast

    C) matrix of chloroplast

    D) inter membranous space

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  • question_answer346) Chlorosis in leaf occurs due to die deficiency of:

    A) chloride

    B) magnesium

    C) phosphate

    D) molebdenum

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  • question_answer347) The first \[C{{O}_{2}}\] acceptor in \[{{C}_{3}}\]-plants is:

    A) RuBP carboxylase

    B) PEP carboxylase

    C) dehydrogenase

    D) hydrolases

    View Answer play_arrow
  • question_answer348) The sun light in PS-II causes:

    A) reduction in \[C{{O}_{2}}\]

    B) activation of chlorophyll

    C) photolysis of water

    D) all of the above

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  • question_answer349) It is belived that origin of mitochondria and chloroplast through endo symbiotic theory because :

    A) both have same nucleic acid

    B) both have same plasma membrane

    C) both have same RNA

    D) all of the above

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  • question_answer350) When genes are located on the same locus the condition is known as :

    A) homozygous

    B) heterozygous

    C) hybrid

    D) all of the above

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  • question_answer351) Which of the following is not involved with the movement of stomata?

    A) High concentration of \[{{K}^{+}}\] in guard cell

    B) High light intensity

    C) High concentration of IAA

    D) High concentration of ABA

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  • question_answer352) When one gene expresses itself in more than one stages then it is called :

    A) heterozygous

    B) genotype

    C) complementory gene

    D) alleles

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  • question_answer353) Which of the following is an exception of Mendels law of independent assortment?

    A) Multiple alleles

    B) Crossing over

    C) Linkage

    D) Dominance and recessive

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  • question_answer354) The anti transpirant is:

    A) PMA

    B) ABA

    C) Both (a) and (b)

    D) None of these

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  • question_answer355) Which of the following is autotrophic prokaryote?

    A) Sulphur bacteria

    B) Cyanobacteria

    C) Archebacteria

    D) None of these

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  • question_answer356) Gibberellin was obtained from:

    A) Gibberellin fujikuroi

    B) Aspergillus

    C) Yeast

    D) none of the above

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  • question_answer357) Pneumatophores are found in:

    A) Orchid

    B) Piper

    C) Rhizophorn

    D) Ficus

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  • question_answer358) The common pathway between aerobic and anaerobic respiration is :

    A) Krebs cycle

    B) ETS

    C) Glycolysis

    D) Glycogenesis

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  • question_answer359) The father of cohesion theory is:

    A) Dixon and Jolly

    B) Boss

    C) Prestelay

    D) None of these

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  • question_answer360) The energy is liberated during coal burning and respiration both, but respiration is step wise process because of the:

    A) enzyme control

    B) hormone control

    C) combustion

    D) respiratory substrate

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  • question_answer361) Annual rings are most clear in:

    A) temperate regions

    B) tropical regions

    C) xerophytes

    D) hydrophyte

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  • question_answer362) The peristome teeth of moss shows:

    A) hydrochasy

    B) zerochasy

    C) chemotropism

    D) none of these

    View Answer play_arrow
  • question_answer363) Plants grow on sand and stone is called as:

    A) lithophyte?

    B) mesophytos

    C) phenerophytes

    D) oxalophytes

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  • question_answer364) Cytochromes are found in:

    A) chloroplast and ribosome

    B) mitochondria and chloroplast

    C) mitochondria and ribosome

    D) chloroplast and golgi body

    View Answer play_arrow
  • question_answer365) In an ecosystem:

    A) primary producers are higher than primary consumers

    B) primary consumers are higher than primary producers

    C) primary consumers are higher than secondary consumers

    D) secondary consumers are higher than primary producers

    View Answer play_arrow
  • question_answer366) Which of the following is involved in the structure CoA FAD and FMN?

    A) Vitamin A

    B) Vitamin C

    C) Vitamin \[{{B}_{1}}\]

    D) Vitamin \[{{B}_{2}}\]

    View Answer play_arrow
  • question_answer367) The enzyme nitrogenase catalyzes:

    A) \[{{N}_{3}}\] to \[N{{N}_{3}}\]

    B) \[{{N}_{2}}\] to \[N{{O}_{3}}\]

    C) \[N{{O}_{2}}\] to \[{{N}_{2}}\]

    D) \[{{N}_{2}}\] to \[N{{O}_{2}}\]

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  • question_answer368) The hydrolysis of starch takes place by:

    A) sucrose

    B) amylase

    C) cellulose

    D) in vertase

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  • question_answer369) Ribozyme is:

    A) RNA without sugar

    B) RNA without phosphate

    C) RNA which acts as an enzyme

    D) none of the above

    View Answer play_arrow
  • question_answer370) The transition zone between two different communities is known as :

    A) ecotype

    B) ecosystem

    C) ecotone

    D) biome

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  • question_answer371) Which of the following belongs to same trophic level?

    A) Tiger and Bear

    B) Deer and Bee

    C) Crow and Cow

    D) Snake and Pig

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  • question_answer372) The correct food chain is:

    A) Dead leaves \[\to \] Bacteria\[\to \]Insect\[\to \]Bird

    B) Phytoplankton\[\to \]Zooplankton\[\to \]Fish

    C) Grass\[\to \] Fox \[\to \] Rabbit

    D) none of these

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  • question_answer373) Virus contains

    A) Only DNA

    B) Only RNA

    C) DNA or RNA

    D) None of these

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  • question_answer374) Initiation of protein synthesis in eukaryotes occurs by the codon :

    A) AUG

    B) GCA

    C) UAA

    D) UAG

    View Answer play_arrow
  • question_answer375) Maize is differ from Wheat in:

    A) phenotype

    B) genotype

    C) mesotype

    D) halophytic

    View Answer play_arrow
  • question_answer376) The plant with red flower is crossed with white flower in \[{{F}_{1}}\] generation all red plants are obtained this shows:

    A) law of segregation

    B) law of dominant and recessive

    C) law of independence assortment

    D) none of the above

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  • question_answer377) Plant which used by Hugo de Vries for mutation experiment was ?

    A) Oenothera Iamarkiana

    B) Solanum tuberosom

    C) Ficus elastic

    D) None of the above

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  • question_answer378) In the classification of Whittaker the kingdom Monera include:

    A) bacteria, cyanobacteria, and fungus

    B) bacteria and cyanobacteria

    C) fungus and alga

    D) lichens and bacteria

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  • question_answer379) The disease caused by mycoplasma is:

    A) Papaya bunchy top

    B) Brinjal little leaf

    C) Witches broom

    D) All of the above

    View Answer play_arrow
  • question_answer380) Vinegar is obtained from alcohol by the:

    A) Bacillus aceti

    B) Lactobacillus

    C) Azotobactor

    D) None of these

    View Answer play_arrow
  • question_answer381) Agar-agar is obtained from:

    A) Chlorella

    B) Chlamydomonas

    C) Nostoc

    D) Gracilaria and Gellidium

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  • question_answer382) Lichens are the association of:

    A) green algae and Phycomycetes

    B) green algae and Ascomycetes

    C) glue-green algae and Phycomycetes

    D) none of these

    View Answer play_arrow
  • question_answer383) Aflatoxins are obtained from:

    A) bacteria

    B) fungus

    C) algae

    D) moss

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  • question_answer384) Which of the following have gametuphytic plant body and sporophytic remains as a parasite on it?

    A) Funaria

    B) Pteris

    C) Cycas

    D) Neem

    View Answer play_arrow
  • question_answer385) During development of embryo in archegonium of bryophyte, its posterior part form protective embryo cover which is called:

    A) calyptra

    B) apophysis

    C) paraphysis

    D) hypophysis

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  • question_answer386) The fern prothallus is:

    A) heart shaped

    B) kidney shaped

    C) liver shaped

    D) none of these

    View Answer play_arrow
  • question_answer387) The vascular cryptogames are:

    A) bryophytes

    B) pteridophytes

    C) angiosperms

    D) none of these

    View Answer play_arrow
  • question_answer388) The living fossil is:

    A) Ginkgo biloba

    B) Pinus

    C) Ephedra

    D) none of these

    View Answer play_arrow
  • question_answer389) The plants in which naked seed is formed without flower and fruit formation is grouped under?

    A) Fungus

    B) Gymnosperm

    C) Angiospenn

    D) Pteridophyta

    View Answer play_arrow
  • question_answer390) Hypanthodium inflorescence is found in:

    A) Ficus

    B) Tulsi

    C) Cedrus

    D) Callotropis

    View Answer play_arrow
  • question_answer391) Flower which never opens in their life cycle is known as:

    A) hetcrogamous

    B) cleistogamous

    C) dichogamous

    D) homogamous

    View Answer play_arrow
  • question_answer392) The inflorescence is edible part in:

    A) Brassica campestris

    B) Brassica oleracea botrytis

    C) Raphanus sativus

    D) Brassica nigra

    View Answer play_arrow
  • question_answer393) The study of tree is called:

    A) Cytology

    B) Dendrology

    C) Embryology

    D) Physiology

    View Answer play_arrow
  • question_answer394) The flow of water from one cell to another adjacent cell takes place by :

    A) osmotic pressure

    B) diffusion

    C) DPD

    D) osmosis

    View Answer play_arrow
  • question_answer395) Root hairs originates from:

    A) endodermis

    B) epidermis

    C) outer cortex

    D) none of these

    View Answer play_arrow
  • question_answer396) The rate of transpiration is measured by:

    A) auxanometer

    B) photometer

    C) perimeter

    D) none of these

    View Answer play_arrow
  • question_answer397) How much energy is used in photosynthesis?

    A) 50%

    B) 35%

    C) 10%

    D) 1 to 2%

    View Answer play_arrow
  • question_answer398) The soluble food material is translocated through phloem in:

    A) acropetal manner

    B) basipetal manner

    C) both (a) and (b)

    D) lateral

    View Answer play_arrow
  • question_answer399) Which of the following is long day plant (LDP)?

    A) Sugarcane

    B) Guldabdi

    C) Tobacco and Soybean

    D) Wheat and Radish

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  • question_answer400) Greenhouse gases are:

    A) CFCS, \[C{{O}_{2}}\,N{{H}_{4}}\] and \[N{{O}_{2}}\]

    B) \[{{O}_{2}},\,{{N}_{3}},\,No;\]

    C) \[{{N}_{3}},\,C{{O}_{2}}\,N{{H}_{4}}\]

    D) None of the above

    View Answer play_arrow

   

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