Solved papers for Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2010

done Chhattisgarh PMT Solved Paper-2010

  • question_answer1) Two simple harmonic motions A and B are given respectively by the following equations \[{{y}_{1}}=a\,\sin \,\left( \omega t+\frac{\pi }{6} \right),\] \[{{y}_{2}}=a\,\sin \,\left( \omega t+\frac{3\pi }{6} \right)\] The phase difference between the waves is

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

    B) \[\frac{\pi }{6}\]

    C) \[\frac{\pi }{3}\]

    D) zero

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  • question_answer2) A stretched string of length \[l\] fixed at both ends can sustain stationary waves of wavelength \[\lambda \] given by

    A) \[\lambda =\frac{{{n}^{2}}}{2l}\]

    B) \[\lambda =\frac{{{l}^{2}}}{2n}\]

    C) \[\lambda =\frac{2l}{n}\]

    D) \[\lambda =2\ln \] (Here, n is a integer)

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  • question_answer3) An observer moves towards a stationary source of sound with a velocity that is one-tenth the velocity of sound. The apparent change in frequency is

    A) zero

    B) 5%

    C) 10%

    D) 0.1%

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  • question_answer4) Light of wavelength \[7200\,\overset{\text{o}}{\mathop{\text{A}}}\,\] in air has a wavelength in glass \[(\mu =1.5)\] equal to

    A) \[7200\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[4800\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    C) \[10800\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) \[6000\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

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  • question_answer5) When a thin convex lens is put in contact with a thin concave lens of the same focal length \[(f),\] the resultant combination has a focal length equal to

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

    B) \[2f\]

    C) 0

    D) \[\infty \]

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  • question_answer6) A cylindrical lens is required to correct

    A) myopia

    B) presbyopia

    C) hypermetropia

    D) astigmatism

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  • question_answer7) Which of the following phenomenona is not common to sound and light waves ?

    A) Interference

    B) Diffraction

    C) Polarisation

    D) Reflection

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  • question_answer8) The nearer point of hypermetropic eye is 40 cm. The lens to be used for its correction should have the power

    A) + 1.5 D

    B) -1.5 D

    C) +2.5D

    D) +0.5D

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  • question_answer9) The work of Sir C.V. Raman for which he was awarded Nobel Prize was concerned with

    A) nuclear energy

    B) scattering of light

    C) laser

    D) transistors

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  • question_answer10) Young's double slit experiment is based on

    A) Newton's corpuscular theory of light

    B) Huygen's wave theory

    C) Quantum theory

    D) All of the above

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  • question_answer11) One kilowatt hour equals

    A) \[36\times {{10}^{s}}J\]

    B) \[34\times {{10}^{s}}J\]

    C) \[3\times {{10}^{5}}J\]

    D) \[6\times {{10}^{s}}J\]

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  • question_answer12) Velocity of electromagnetic waves in vacuum is given by

    A) \[\sqrt{{{\mu }_{0}}{{\varepsilon }_{0}}}\]

    B) \[\frac{\sqrt{{{\mu }_{0}}}}{{{\varepsilon }_{0}}}\]

    C) \[\frac{\sqrt{{{\varepsilon }_{0}}}}{{{\mu }_{0}}}\]

    D) \[\frac{1}{\sqrt{{{\mu }_{0}}{{\varepsilon }_{0}}}}\]

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  • question_answer13) Two spheres A and B of radii a and b respectively are at the same potential. The ratio of the surface charge densities of A to B is

    A) \[\frac{a}{b}\]

    B) \[\frac{b}{a}\]

    C) \[\frac{{{a}^{2}}}{{{b}^{2}}}\]

    D) \[\frac{{{b}^{2}}}{{{a}^{2}}}\]

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  • question_answer14) A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 V. The potential at a distance of 2 cm from the centre of sphere is

    A) zero

    B) 10 V

    C) 4V

    D) 5V

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  • question_answer15) The equivalent capacitance between points A and B in the given figure, is

    A) \[\frac{36}{13\mu F}\]

    B) \[2\mu F\]

    C) \[1\mu F\]

    D) \[3\mu F\]

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  • question_answer16) An electric bulb is rated 220 V and 100 W. Power consumed by it when operated on 110 V is

    A) 50 W

    B) 75 W

    C) 90 W

    D) 25 W

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  • question_answer17) The temperature coefficient of resistance of a wire is \[0.00125\text{ }per\text{ }{}^\circ C\]. At 300 K temperature its resistance is \[1\Omega .\] The resistance of the wire will be \[2\Omega \] at

    A) 1154 K

    B) 1100 K

    C) 1400 K

    D) 1127 K

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  • question_answer18) How much heat is produced by 1500 W heater in 7 min ?

    A) 1.5 kcal

    B) 15 kcal

    C) 150 kcal

    D) 1500 kcal

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  • question_answer19) Five equal resistors, each equal to r are connected as shown in the figure, then the equivalent resistance between points A and B

    A) r

    B) 5r

    C) \[\frac{r}{5}\]

    D) \[\frac{2r}{3}\]

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  • question_answer20) A solenoid of 1.5 m length and 4.0 cm diameter possesses 10 turns/cm. A current of 5 A is flowing through it. The magnetic induction a axis inside the solenoid is

    A) \[\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\,\text{T}\]

    B) \[\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\,\text{T}\]

    C) \[\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\,\text{T}\]

    D) \[\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\,\text{T}\]

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  • question_answer21) The unit of intensity of magnetisation (\[I\]) is

    A) A/m

    B) A-m2

    C) A-m

    D) W/m

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  • question_answer22) The resistance of an ideal voltmeter is

    A) low

    B) high

    C) infinite

    D) zero

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  • question_answer23) The inductive time constant in an electrical circuit is

    A) \[LR\]

    B) \[\frac{L}{R}\]

    C) \[\sqrt{\frac{L}{R}}\]

    D) \[\frac{R}{L}\]

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  • question_answer24) The relation between triode constants is

    A) \[\mu \times {{r}_{P}}\times {{g}_{m}}=1\]

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

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

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

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  • question_answer25) An n-type semiconductor is formed

    A) when germanium crystal is doped with an impurity containing 3 valence electrons

    B) when germanium crystal is doped with an impurity containing 5 valence electrons

    C) from pure germanium

    D) from pure silicon

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  • question_answer26) In a common base configuration; (transistor circuit) \[{{I}_{E}}=1\]mA, \[{{I}_{c}}=\] 0.95mA. The value of base current is

    A) 1.95mA

    B) 0.05mA

    C) 1.05mA

    D) 0.95mA

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  • question_answer27) The work function for aluminium surface is 4.2eV. The cut-off wavelength for the photoelectric effect is

    A) \[2955\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[4200\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    C) \[2000\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) \[1000\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

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  • question_answer28) X-rays are being produced in a tube operating at 105V The velocity of X-rays produced is

    A) \[3\times {{10}^{8}}m/s\]

    B) \[2.8\times {{10}^{8}}m/s\]

    C) \[3.1\times {{10}^{8}}m/s\]

    D) \[3\times {{10}^{10}}m/s\]

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  • question_answer29) If the potential energy of the electron in the hydrogen atom is \[\frac{-K{{e}^{2}}}{r},\]its Kinetic energy is

    A) \[\frac{-K{{e}^{2}}}{2r}\]

    B) \[\frac{-K{{e}^{2}}}{r}\]

    C) \[\frac{K{{e}^{2}}}{2r}\]

    D) \[\frac{K{{e}^{2}}}{r}\]

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  • question_answer30) The decay constant of radium is \[4.28\times {{10}^{-4}}\] per \[yr\]Its half-life is approximately

    A) \[1250\,yr\]

    B) \[1620\,yr\]

    C) \[200\,yr\]

    D) \[60\,yr\]

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  • question_answer31) Dimensions of the three physical quantities in which En up are the same ?

    A) Work, energy, force

    B) Velocity, momentum, impulse

    C) Potential energy, kinetic energy, momentum

    D) Pressure, stress, coefficient of elasticity

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  • question_answer32) One nanometre is equal to

    A) \[\text{1}{{\text{0}}^{\text{9}}}\text{mm}\]

    B) \[\text{1}{{\text{0}}^{\text{-6}}}\text{cm}\]

    C) \[\text{1}{{\text{0}}^{\text{-7}}}\text{cm}\]

    D) \[\text{1}{{\text{0}}^{\text{-9}}}\text{cm}\]

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  • question_answer33) A life is going up. The variation in the speed of the lift is as given in the graph What is the height to which the lift takes the passengers ?

    A) 3.6m

    B) 28.8m

    C) 36.0m

    D) 40.0m

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  • question_answer34) 34. A2 kg mass is suspended using two strings AB CD as shown in figure A sudden jerk is given to the end D of the string, then

    A) part AB of the string breaks

    B) part CD of the string breaks

    C) no part of the string breaks

    D) both the strings will simultaneously break

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  • question_answer35) A body of mass 2 kg slides down a curved track which is quadrant of a circle of radius 1m (figure) All the surfaces are frictionless. If the body starts from rest, its speed at the bottom of the track is

    A) 4.43 m/s

    B) 2 m/s

    C) 0.5 m/s

    D) 19.6 m/s

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  • question_answer36) A lift moving up comes to rest with a retardation. The weight of the man in it

    A) increases

    B) decreases

    C) remains constant

    D) either increases or decreases

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  • question_answer37) A car of mass m is taking a circular turn of radius r on a frictional level road with a speed v. In order that the car does not skid (\[\mu =\] coefficient of friction)

    A) \[\frac{m{{v}^{2}}}{r}\ge \mu mg\]

    B) \[\frac{m{{v}^{2}}}{r}\le \mu mg\]

    C) \[\frac{m{{v}^{2}}}{r}=\mu mg\]

    D) \[\frac{v}{r}=\mu g\]

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  • question_answer38) Moment of inertia of a rod of length\[l\] about an axis passing through its edge is (mass of the rod M)

    A) \[\frac{M{{l}^{2}}}{12}\]

    B) \[\frac{M{{l}^{2}}}{3}\]

    C) \[\frac{M{{l}^{2}}}{2}\]

    D) \[\frac{M{{l}^{2}}}{4}\]

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  • question_answer39) Two bodies of masses \[{{m}_{1}}\] and \[{{m}_{2}}\] have equal momentum. Their kinetic energies \[{{E}_{1}}\] and \[{{E}_{2}}\] are in the ratio

    A) \[\sqrt{{{m}_{1}}:}\sqrt{{{m}_{2}}}\]

    B) \[{{m}_{1}}:{{m}_{2}}\]

    C) \[{{m}_{2}}:{{m}_{1}}\]

    D) \[m_{1}^{2}:m_{2}^{2}\]

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  • question_answer40) Time period of revolution of a satellite around a planet of radius R is T. The period of revolution around another planet whose radius is 3R is

    A) T

    B) 3T

    C) 9T

    D) \[3\sqrt{3}T\]

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  • question_answer41) The total energy of the body executing simple harmonic motion (SHM) is E. Then the kinetic energy when the displacement is half of the amplitude is

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

    B) \[\frac{E}{4}\]

    C) \[\frac{3E}{4}\]

    D) \[\frac{\sqrt{3E}}{4}\]

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  • question_answer42) An ice-berg is floating in sea water. What percentage of volume of the ice-berg is above the water ? (Given : relative density of sea water 1.2 and relative density or ice = 0.9)

    A) 20%

    B) 25%

    C) 33.3%

    D) 50%

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  • question_answer43) A cylindrical vessel is filled with a liquid of density d upto a height h, if the vessel is at rest, then the pressure at the bottom is

    A) zero

    B) \[\frac{h}{2}dg\]

    C) \[hdg\]

    D) \[2hdg\]

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  • question_answer44) 44. A thick copper rope of density \[1.5\times {{10}^{3}}kg/{{m}^{3}}\]and young's modulus \[5\times {{10}^{6}}N/{{m}^{2}},\text{ }8m\] in length is hung from the ceiling of a room. The increase in its length due to its own weight is

    A) \[\text{9}\text{.6 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\text{m}\]

    B) \[\text{19}\text{.6 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-7}}}\text{m}\]

    C) \[\text{19}\text{.2 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-7}}}\text{m}\]

    D) \[\text{9}\text{.6}\,\text{m}\]

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  • question_answer45) The excess of pressure due to surface tension in a spherical liquid drop of radius R is proportional To

    A) \[R\]

    B) \[{{R}^{3}}\]

    C) \[{{R}^{-2}}\]

    D) \[{{R}^{-1}}\]

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  • question_answer46) If one mole of a monoatomic gas \[\left( y=\frac{5}{3} \right)\] is mixed with one mole of a diatomic gas \[\left( y=\frac{7}{3} \right),\] the value of y for the mixture is

    A) 1.40

    B) 1.50

    C) 1.53

    D) 3.07

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  • question_answer47) Oxygen boils at \[-183{}^\circ C\].This temperature is approximately in fahrenheit is

    A) \[-329{}^\circ F\]

    B) \[-261{}^\circ F\]

    C) \[-215{}^\circ F\]

    D) \[-297{}^\circ F\]

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  • question_answer48) 420 J of energy supplied to 10 g of water will raise its temperature by nearly

    A) \[1{}^\circ C\]

    B) \[4.2{}^\circ C\]

    C) \[10{}^\circ C\]

    D) \[42{}^\circ C\]

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  • question_answer49) Using which of the following instruments, the temperature of the sun can be determined ?

    A) Platinum thermometer

    B) Gas thermometer

    C) Pyrometer

    D) Vapour pressure thermometer

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  • question_answer50) An ideal gas undergoes an adiabatic change in volume (V) with pressure (p). Then

    A) \[{{p}^{\gamma }}V\]= constant

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

    C) \[{{(pV)}^{\gamma }}\] = constant

    D) \[pV\]= constant

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  • question_answer51) The most electronegative element in periodic table is

    A) cesium

    B) chlorine

    C) fluorine

    D) barium

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  • question_answer52) A neutral atom can accept electron to form an anion. The process involves

    A) loss of energy

    B) gain of energy

    C) no change in energy

    D) None of the above

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  • question_answer53) The outermost electronic configuration of the most electronegative element is

    A) \[n{{s}^{2}}n{{p}^{3}}\]

    B) \[n{{s}^{2}}n{{p}^{4}}\]

    C) \[n{{s}^{2}}n{{p}^{5}}\]

    D) \[n{{s}^{2}}n{{p}^{6}}\]

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  • question_answer54) The total number of electrons that take part in forming bond in \[{{O}_{2}}\] is

    A) \[2\]

    B) \[4\]

    C) \[6\]

    D) \[8\]

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  • question_answer55) Methanol is soluble in water due to

    A) covalent bond nature

    B) hydrogen bonding

    C) ionic bond nature

    D) its poisonous nature

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  • question_answer56) The number of bonding and anti-bonding respectively in \[CO\] molecule are

    A) \[8,2\]

    B) \[2,8\]

    C) \[4,2\]

    D) \[2,4\]

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  • question_answer57) The bond order in \[He_{2}^{+}\] ion is

    A) \[0.5\]

    B) \[1.0\]

    C) \[1.5\]

    D) \[2.0\]

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  • question_answer58) Food irradiation is used to

    A) precook food

    B) kill micro-organism

    C) kill insects

    D) increase nutrient value

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  • question_answer59) The name catalyst was given by

    A) J.J. Thomson

    B) J.J Thomson

    C) Berzelius

    D) Rutherford

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  • question_answer60) Vinegar is

    A) \[HCHO\]

    B) \[H\,COOH\]

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

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

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  • question_answer61) In which solvent are alkenes most soluble?

    A) water

    B) ethyl alcohol

    C) carbon tetrachloride

    D) ammonia

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  • question_answer62) Which of the following compounds will show geometrical isomerism?

    A) Propene

    B) 2-butene

    C) Propyne

    D) 2-butyne

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  • question_answer63) How many \[\sigma \](sigma) bonds are there in \[C{{H}_{2}}=CH-CH=C{{H}_{2}}\]?

    A) \[3\]

    B) \[6\]

    C) \[9\]

    D) \[12\]

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  • question_answer64) When acetylene is passed through hot iron tube at \[{{400}^{o}}C,\]it gives

    A) benzene

    B) toluene

    C) o-xylene

    D) methylene

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  • question_answer65) Which of the following hydrocarbons has acidic hydrogen?s?

    A) 1-butane

    B) 1-butyne

    C) 2-butene

    D) 2-butyne

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  • question_answer66) Which of the following has the highest boiling point?

    A) Diethyl ether

    B) n-butyraldehyde

    C) n-butyl alcohol

    D) n-propyl chloride

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  • question_answer67) Rectified spirit is

    A) 100% ethanol

    B) 90% ethanol

    C) 100% methanol

    D) 95% ethanol

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  • question_answer68) Which one of the following reagents will react readily with both aldehydes and ketones?

    A) Grignard reagent

    B) Fehling?s reagent

    C) Tollen?s reagent

    D) Schiff?s reagent

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  • question_answer69) Which of the following compounds will give an iodoform test?

    A) Benzoic acid

    B) Ethanol

    C) Benzyl chloride

    D) M' ethanol

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  • question_answer70) Acetone undergoes reduction with hydrazine in the presence of \[NaOH\]to form propane. This reaction is known as

    A) Clemmensen reduction

    B) Wolff-Kishner reduction

    C) Rosenmund reduction

    D) Reformat sky reaction

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  • question_answer71) Which of the following will give acetic acid on acid hydrolysis?

    A) Ethyl acetate

    B) Acetone

    C) Methyl propionate

    D) Lactic acid

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  • question_answer72) Methylamine reacts with nitrous acid to form

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

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

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

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

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  • question_answer73) Which of the following compounds does not react with acetyl chloride?

    A) Methylamine

    B) Dimethylamine

    C) Aniline

    D) Trimethylamine

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  • question_answer74) Which of the following compounds undergoes nitration most readily?

    A) Benzene

    B) Toluene

    C) Benzoic acid

    D) Nitrobenzene

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  • question_answer75) Which element is used to vulcanise rubber?

    A) \[P\]

    B) \[Br\]

    C) \[N\]

    D) \[S\]

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  • question_answer76) Epsom salt is

    A) \[MgS{{O}_{4}}.7{{H}_{2}}O\]

    B) \[CaS{{O}_{4}}.{{H}_{2}}O\]

    C) \[MgS{{O}_{4}}.2{{H}_{2}}O\]

    D) \[BaS{{O}_{4}}.2{{H}_{2}}O\]

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  • question_answer77) Oxygen exhibits positive oxidation state in

    A) \[CO\]

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

    C) \[NO\]

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

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  • question_answer78) The poison for platinum catalyst is

    A) sulphur

    B) arsenic

    C) selenium

    D) vanadium

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  • question_answer79) Chlorine gas is dried over

    A) quicklime

    B) caustic soda

    C) caustic potash stick

    D) cone. sulphuric acid

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  • question_answer80) The noble gas which is radioactive is

    A) argon

    B) helium

    C) radon

    D) xenon

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  • question_answer81) The total number of Bravais lattices in crystal is

    A) \[7\]

    B) \[32\]

    C) \[230\]

    D) \[14\]

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  • question_answer82) If the de-Broglie wavelength of the fourth Bohr's orbit of hydrogen atom is \[4\overset{\text{o}}{\mathop{\text{A}}}\,\] the circumference of the orbit is

    A) \[4\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[4nm\]

    C) \[16\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) \[16\text{ }nm\]

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  • question_answer83) The s and p characters in bond formed by central atom are equal in

    A) \[C{{H}_{4}}\]

    B) \[CH\equiv CH\]

    C) \[CH_{3}^{+}\]

    D) \[CH_{3}^{-}\]

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  • question_answer84) The maximum bond strength is in

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

    B) \[O_{2}^{+}\]

    C) \[O_{2}^{-}\]

    D) \[O_{2}^{2-}\]

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  • question_answer85) The ratio of the radii of the nucleic He and } H is

    A) \[4\]

    B) \[2\]

    C) \[3\]

    D) \[1.6\]

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  • question_answer86) Radiocarbon dating was developed by

    A) M. Curie

    B) M. Calvin

    C) W. F. Libby

    D) H. Becquerel

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  • question_answer87) The pH of \[0.1\text{ }M\]aqueous solution of \[N{{H}_{4}}OH\]is \[({{K}_{b}}=1.0\times {{10}^{-5}})\]

    A) \[3\]

    B) \[10.5\]

    C) \[11\]

    D) \[7.5\]

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  • question_answer88) The work differential, dW, is

    A) a state function

    B) an inexact differential

    C) exact differential

    D) None of the above

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  • question_answer89) For a real gas\[\left( \frac{\partial U}{\partial V} \right)\]is

    A) zero

    B) positive

    C) negative

    D) infinity

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  • question_answer90) \[10\text{ }moles\]of an ideal gas expands into a vacuum. The work done is

    A) infinity

    B) \[10\text{ }J\]

    C) zero

    D) \[5\text{ }J\]

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  • question_answer91) In Arrhenius equation for activation energy, \[k=A{{e}^{-{{E}_{a}}/Rt}},\] A represents the following [a] Pre exponential factor [b] Frequency factor [c] Arrhenius factor [d] Collision factor and frequency The correct answer is

    A) \[1\]and \[3\]

    B) \[1\] and \[2\]

    C) \[3\] and \[4\]

    D) \[-2\] and \[3\]

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  • question_answer92) Which is correct for an endothermic reaction?

    A) \[\Delta E\] is negative

    B) \[\Delta H\] is negative

    C) \[\Delta H\] is positive

    D) \[\Delta H\] is equal to zero

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  • question_answer93) In the lead-acid battery during charging, the cathode reaction is

    A) reduction of \[P{{b}^{2+}}\] to \[Pb\]

    B) formation of \[PbS{{O}_{4}}\]

    C) deposition of \[Pb\] at the anode

    D) formation of \[Pb{{O}_{2}}\]

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  • question_answer94) For an adiabaric process

    A) T = constant

    B) Q = 0

    C) Q = constant

    D) W = 0

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  • question_answer95) A real solution is that which

    A) obeys Raoult's law

    B) obeys Henry's law

    C) does not obey Raoult's law

    D) obeys Ohm's law

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  • question_answer96) The continuous rapid zig-zag movement executed by a colloidal particle in the dispersion medium is called

    A) Tyndall effect

    B) Brownian movement

    C) electrophoresis

    D) peptization

    View Answer play_arrow
  • question_answer97) The enthalpy change in the reaction \[2CO+{{O}_{2}}\xrightarrow{{}}2C{{O}_{2}}\]is termed as

    A) enthalpy of reaction

    B) enthalpy of fusion

    C) enthalpy of combustion

    D) enthalpy of formation

    View Answer play_arrow
  • question_answer98) Which of the following can change the value of equilibrium constant for a reaction

    A) changing the concentration of the reactant

    B) removing the products as they are formed

    C) changing the solvent

    D) adding a catalyst

    View Answer play_arrow
  • question_answer99) The vapour pressure of a dilute aqueous solution of glucose is \[740\text{ }mm\]of mercury at\[373\text{ }K\]. The mole fraction of the solute is

    A) \[\frac{1}{20}\]

    B) \[\frac{1}{38}\]

    C) \[\frac{1}{76}\]

    D) \[\frac{1}{740}\]

    View Answer play_arrow
  • question_answer100) How many grams of nickel can be electroplated from a solution of nickel chloride by 4F of electricity?

    A) \[29.3\]

    B) \[58.7\]

    C) \[117.4\]

    D) \[176.1\]

    View Answer play_arrow
  • question_answer101) Which is the unit of DNA?

    A) Chromatin

    B) Euchromatm

    C) Chromosomes

    D) Chromatids

    View Answer play_arrow
  • question_answer102) Which is the property of bile juice?

    A) Not have any enzymes

    B) It has crypsin

    C) It has enterogastrone

    D) It has trypofnomide

    View Answer play_arrow
  • question_answer103) In humans, which side of cerebral hemisphere recognises the faces of friends and family members?

    A) Left cerebral hemisphere

    B) Right cerebral hemisphere

    C) Both [a] and [b]

    D) None of the above

    View Answer play_arrow
  • question_answer104) The extra embryonic membranes of mammalian embryo are derived from

    A) inner cell mass

    B) trophoblast

    C) formative cells

    D) follicle cells

    View Answer play_arrow
  • question_answer105) Red tide is caused by

    A) Protozoans

    B) corals

    C) dinoflagellates

    D) All of these

    View Answer play_arrow
  • question_answer106) Find the out odd one

    A) Guinea worm

    B) Hookworm

    C) Ringworm

    D) Tapeworm

    View Answer play_arrow
  • question_answer107) The major constituent of vertebrate bone is

    A) calcium phosphate

    B) calcium carbonate

    C) sodium chloride

    D) potassium hydroxide

    View Answer play_arrow
  • question_answer108) Which of the following animal belongs to phylum-Mollusca ?

    A) Globe fish

    B) Star fish

    C) Silver fish

    D) Cattle fish

    View Answer play_arrow
  • question_answer109) Honey that has a high concentration of sugar, does not decay because

    A) it contains natural antioxidant that prevent bacterial attack

    B) bacteria cannot survive in an active state in a solution of high osmotic strength, as water is drawn out from honey

    C) in honey bacteria are totally deprived of oxygen

    D) None of the above

    View Answer play_arrow
  • question_answer110) Which of the following is iron storing protein?

    A) Alpha globulin

    B) Gamma globulin

    C) Ferritin

    D) Albumins

    View Answer play_arrow
  • question_answer111) Corpus striatum is found in

    A) paracoel

    B) diocoel

    C) metacoel

    D) cerebral hemisphere

    View Answer play_arrow
  • question_answer112) A rabbit runs very fast but after some time feel tired, because

    A) formation of lactic acid in muscles

    B) formation of succinic acid in muscles

    C) loss of energy

    D) None of the above

    View Answer play_arrow
  • question_answer113) Body cells infected with virus produce a protein Called

    A) interferon

    B) properdin

    C) Gamma globulin

    D) hybridoma

    View Answer play_arrow
  • question_answer114) The cytoplasmic segement of striated muscle fibre is termed

    A) metamere

    B) neuromere

    C) sarcoplasm

    D) sarcomere

    View Answer play_arrow
  • question_answer115) Capacitation of sperm in mammals involves

    A) sperm size change

    B) acrosome reaction

    C) nuclear chromatin change

    D) mitochondrial alignment

    View Answer play_arrow
  • question_answer116) Which one of the following is a pandemic disease ?

    A) Amoebic dysentery

    B) Hepatitis

    C) Filariasis

    D) Influenza

    View Answer play_arrow
  • question_answer117) Products of adenine and guanine metabolism are excreted by humans as

    A) ammonia

    B) urea

    C) uric acid

    D) allantoin

    View Answer play_arrow
  • question_answer118) Peripatus is a connecting link of

    A) Reptiles and Mammals

    B) Flat worms and Annelida

    C) Mollusca and Arthropoda

    D) Annelida and Arthropoda

    View Answer play_arrow
  • question_answer119) Which of the following is a hormonal disease ?

    A) Cold

    B) Goitre

    C) Tuberculosis

    D) Leprosy

    View Answer play_arrow
  • question_answer120) One gene-one enzyme hypothesis is proposed by

    A) Watson and Crick

    B) Beadle and Tatum

    C) Singer and Nicolson

    D) Schleiden and Schwan

    View Answer play_arrow
  • question_answer121) The skin colour of the humans are regulated by

    A) multiple alleles

    B) lethal genes

    C) polygenes

    D) None of these

    View Answer play_arrow
  • question_answer122) The thickening of wall of artery is called

    A) aneurysm

    B) arteriosclerosis

    C) arthritis

    D) Both [a] and [b]

    View Answer play_arrow
  • question_answer123) Which blood group has both 'a' and V antibodies ?

    A) 0

    B) AB

    C) A

    D) B

    View Answer play_arrow
  • question_answer124) Passive food ingestion in Amoeba is known as

    A) invagination

    B) import

    C) drcumfluence

    D) circumvallation

    View Answer play_arrow
  • question_answer125) Palaeontology is the study of

    A) birds

    B) bones

    C) primates

    D) fossils

    View Answer play_arrow
  • question_answer126) The thread-like structures that begin to radiate from each centromere by the end of prophase are

    A) kinetochore microtubules

    B) polar microtubules

    C) aster microtubule

    D) spindle microtubules

    View Answer play_arrow
  • question_answer127) In which vitamin the cobalt metal is present ?

    A) \[{{B}_{1}}\]

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

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

    D) \[{{B}_{12}}\]

    View Answer play_arrow
  • question_answer128) Which of the following is the least poisonous nitrogenous waste ?

    A) Ammonia

    B) Urea

    C) Uric acid

    D) D-Ammonia and urea

    View Answer play_arrow
  • question_answer129) Chloride shift is essential for the transportation of

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

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

    C) \[C{{O}_{2}}\] and \[{{O}_{2}}\]

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

    View Answer play_arrow
  • question_answer130) The sensory neurons of a vertebrate retina are

    A) rods and cones

    B) ganglion cells

    C) amacrine cells

    D) bipolar cells

    View Answer play_arrow
  • question_answer131) At which stage does cytokinesis begin ?

    A) Anaphase

    B) Prophase

    C) Metaphase

    D) Interphase

    View Answer play_arrow
  • question_answer132) Each restriction enzymes cleaves a molecule only at

    A) methyl groups

    B) the ends of genes

    C) particular nucleotide sequence

    D) the time of DNA replication

    View Answer play_arrow
  • question_answer133) The bio concentration of DDT in the body fat of Indian people is

    A) 13-31 ppm

    B) 18-36 ppm

    C) 5-10 ppm

    D) 2-5 ppm

    View Answer play_arrow
  • question_answer134) In oogenesis, when a diploid cell in the ovary undergoes meiosis, how many ova results ?

    A) 1

    B) 2

    C) 3

    D) 4

    View Answer play_arrow
  • question_answer135) Natural selection acts on an organism's

    A) dominant alleles

    B) recessive alleles

    C) phenorype

    D) genotype

    View Answer play_arrow
  • question_answer136) An allergic reaction is initiated by antibodies of the

    A) \[\text{IgG}\]group

    B) \[\text{Ig}\,\text{M}\]

    C) \[\text{Ig}\,\text{A}\]

    D) \[\text{Ig}\,\text{E}\]

    View Answer play_arrow
  • question_answer137) The virus that causes Acquired Immune Deficiency Syndrome (AIDS) parasitizes

    A) B-cells

    B) cytotoxic T-cells

    C) helper T-cells

    D) the membrane of lymph nodes

    View Answer play_arrow
  • question_answer138) The geographic limits within which a population exists is its

    A) niche

    B) habitat

    C) range

    D) territory

    View Answer play_arrow
  • question_answer139) Which of the following taxonomic categories contains organisms least similar to one another?

    A) Class

    B) Genus

    C) Family

    D) Species

    View Answer play_arrow
  • question_answer140) Which of the following is a type of intercellular Junction between animals cells ?

    A) Middle lamella

    B) Plasmodesma

    C) Desmosome

    D) Glycocalyx

    View Answer play_arrow
  • question_answer141) Human sperm cells move by means of a

    A) dlium

    B) flagellum

    C) basal body

    D) hair

    View Answer play_arrow
  • question_answer142) Which of the following processes makes direct use of oxygen ?

    A) Glycolysis

    B) Fermentation

    C) Krebs' cycle

    D) Electron transport

    View Answer play_arrow
  • question_answer143) Genes that are inactive for long periods of time tend to be bonded to

    A) each other

    B) methyl groups

    C) actin and myosin

    D) the nucleolus

    View Answer play_arrow
  • question_answer144) M. A virus that can reproduce without killing its host is called a

    A) lyric virus

    B) retroactive virus

    C) temperate virus

    D) virion

    View Answer play_arrow
  • question_answer145) An organism with two different alleles is

    A) homozygous for that trait

    B) homologous for the allele

    C) heterozygous for that trait

    D) heterologous for the alleles

    View Answer play_arrow
  • question_answer146) The gerotypic expression seen in a person of blood group AB is called

    A) dominant-recessive

    B) codominance

    C) incomplete dominance

    D) corecession

    View Answer play_arrow
  • question_answer147) The genetic basis of haemophilia was revealed by studies of

    A) DNA sequences

    B) chromosome in gametes

    C) family pedigree

    D) prenatal gene products

    View Answer play_arrow
  • question_answer148) Diseases caused by pleiotropic genes are

    A) syndromes

    B) reversible by diet therapy

    C) reversible by gene therapy

    D) extremely rare

    View Answer play_arrow
  • question_answer149) Tobacoo smoke contains

    A) \[C{{O}_{2}}\] hydrocarbons and tar

    B) \[C{{O}_{2}}\]and tar

    C) \[C{{O}_{2}}\], polycyclic aromatic hydrocarbons and tar

    D) \[C{{O}_{2}},CO\] and tar

    View Answer play_arrow
  • question_answer150) Alcohol depresses nervous system and acts as

    A) sedative agents

    B) analgesic agent

    C) anesthetic agents

    D) All of these

    View Answer play_arrow
  • question_answer151) Merozygore is formed in

    A) Yeast

    B) Spirogyra

    C) Escherichia coli

    D) Neurospora

    View Answer play_arrow
  • question_answer152) The fermented food of Mucor is

    A) tempe kedel

    B) tofu

    C) tempe kedel

    D) sufu

    View Answer play_arrow
  • question_answer153) The theory that all the cells arise from pre-existing cells (Omnis cellula e cellula) was proposed by

    A) Schwann (1839)

    B) Brown (1831)

    C) Virchow (1855)

    D) Schleiden (1938)

    View Answer play_arrow
  • question_answer154) C He most studied prokaryote is

    A) Klebsiella pneumonia

    B) Pseudomonas sp

    C) Escherichia coli

    D) Badus thuringiensis

    View Answer play_arrow
  • question_answer155) Which bacterium has two chromosomes in nucleoid?

    A) Artho bacterium sp

    B) Vibrio cholera

    C) Xanthomonas citri

    D) Closmdium

    View Answer play_arrow
  • question_answer156) Which of the following ribosomal RNA is most extensively used to establish phylogenetic relationship among eukaryotes?

    A) 16S

    B) 18S

    C) 5S

    D) 34S

    View Answer play_arrow
  • question_answer157) Annealing' is a phenomenon related to

    A) denaturation of DNA

    B) renamration of DNA

    C) melting point of DNA (Tm)

    D) separation of G from C

    View Answer play_arrow
  • question_answer158) One of the following plasmid produces lacteriocin' which is lethal to other strains of same genus

    A) \[Ti\]

    B) \[Cpl\text{ }E\]

    C) \[{{\text{R}}_{\text{100}}}\]

    D) \[pB{{r}^{322}}\]

    View Answer play_arrow
  • question_answer159) Lysosomes are not found in

    A) Leucocytes

    B) Amoeba

    C) Hela cells

    D) Mammalian erythrocytes

    View Answer play_arrow
  • question_answer160) Chromoplast contains pigment other than.

    A) chlorophyll

    B) anthocyanin

    C) \[\text{ }\!\!\beta\!\!\text{ -}\]carotene

    D) xanthophylls

    View Answer play_arrow
  • question_answer161) A dihybrid cross between pea plants with "yellow round' and 'green wrinkled', seed in \[{{F}_{2}}\] generation genotype yy Rr yy rR means

    A) heterozygous yellow wrinkled

    B) heterozygous yellow round

    C) heterozygous green round

    D) heterozygous green wrinkled

    View Answer play_arrow
  • question_answer162) In male human, how many linkage groups occur in their chromosome ?

    A) 22

    B) 24

    C) 23

    D) 46

    View Answer play_arrow
  • question_answer163) During crossing over, synaptonemal complex in between two paired chromosome is formed in which stage of meiosis?

    A) Diplotene

    B) Diakinesis

    C) Pachytene

    D) Leptotene

    View Answer play_arrow
  • question_answer164) The enzyme which act to hydrolyse or breakdown a polynucleotide chain into its component nucleotide is

    A) gyrases

    B) polymerases

    C) nucleases

    D) primases

    View Answer play_arrow
  • question_answer165) In most organisms the 'initiation codon' is

    A) UAG

    B) AUG

    C) GUA

    D) GAU

    View Answer play_arrow
  • question_answer166) In E. coli, the average life of mRNA is about

    A) 2h

    B) 2 min

    C) 2 s

    D) indefinite period

    View Answer play_arrow
  • question_answer167) Antibiotic which inhibits cell wall synthesis in bacteria

    A) chloramphenicol

    B) erythromycin

    C) penicillin

    D) tetracycline

    View Answer play_arrow
  • question_answer168) Cell wall of xylem is rich in

    A) starch

    B) lignin

    C) lipid

    D) protein

    View Answer play_arrow
  • question_answer169) Anatomically jute fibres are

    A) xylem fibres

    B) phloem fibres

    C) sclerenchyma fibres

    D) cortical fibres

    View Answer play_arrow
  • question_answer170) The first sporophyte arising from pollen grain was made by Guha and Maheshwari (1966) in

    A) Hyacinthus

    B) Datura

    C) Drosera

    D) Glycine max

    View Answer play_arrow
  • question_answer171) The haustorial behaviour where entire embryo sac grow beyond the ovular tissue occur in

    A) Santalum

    B) Zea mays

    C) Argemone

    D) Datura

    View Answer play_arrow
  • question_answer172) The chief source of nutrition of embryo inside the ovule is

    A) endosperm

    B) ovular tissue

    C) embryo sac

    D) haustoria

    View Answer play_arrow
  • question_answer173) Cereal proteins are deficient in one of the following amino acid

    A) methionine

    B) threonine

    C) lysine

    D) glutamic acid

    View Answer play_arrow
  • question_answer174) 'Elicitors' are molecule which stimulate production of

    A) primary metabolites

    B) secondary metabolites

    C) tertiary metabolites

    D) all metabolites

    View Answer play_arrow
  • question_answer175) Malolactic fermentation during wine production is performed by

    A) Lactobacillus

    B) Leuconostoc

    C) Saccharomyces

    D) As pergillus

    View Answer play_arrow
  • question_answer176) 'Downstream process' in fermentation technology means

    A) secretion of metabolites in stationary phase

    B) actual recovery of useful product

    C) removal of waste after fermentation

    D) None of the above

    View Answer play_arrow
  • question_answer177) Cephalosporum acremonium a fungus which produces cephalosporin is

    A) marine fungus

    B) fresh water fungus

    C) soil fungus

    D) endophyte

    View Answer play_arrow
  • question_answer178) Eukaryotes lack

    A) membrane bound nucleus

    B) complex membranous internal organ

    C) gas vesicle

    D) mRNA in trons

    View Answer play_arrow
  • question_answer179) T series bacteriophage possess complex tail structure is

    A) \[{{T}_{1}}\]

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

    C) \[{{T}_{3}}\]

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

    View Answer play_arrow
  • question_answer180) Mycoplasmas differs from other bacteria in their

    A) DNA

    B) RNA

    C) cell wall

    D) nutrition

    View Answer play_arrow
  • question_answer181) Cyanobacteria differs from other groups of bacteria in their

    A) DNA

    B) cell wall

    C) nutrition

    D) reproduction

    View Answer play_arrow
  • question_answer182) Nostoc does not form symbiotic association with

    A) Cycos

    B) Anthoceros

    C) Pinus

    D) Gunnera

    View Answer play_arrow
  • question_answer183) Penicillin is produced commercially from

    A) Penidllium notatum

    B) P. chrysogenum

    C) P. citrinum

    D) P. rubrum

    View Answer play_arrow
  • question_answer184) Which of the following statement is true?

    A) Pure water has minimum water potential

    B) Greater the water molecule in a system lesser the kinetic energy

    C) Water always move from lower water potential to higher one

    D) The water potential of pure water is zero.

    View Answer play_arrow
  • question_answer185) Alga commonly known as "water silk' or 'pond silk' is

    A) Zygnema

    B) Spirogyra

    C) Cladophora

    D) Oedogonium

    View Answer play_arrow
  • question_answer186) In Funaria stomata are found in

    A) capsule

    B) foot

    C) seta

    D) thallus

    View Answer play_arrow
  • question_answer187) Trabeculae in Selaginella is

    A) modified pericycle

    B) elongated endodermis

    C) elongated cortical cell

    D) modified xylem vessel

    View Answer play_arrow
  • question_answer188) Rhizobia form nodule in Glycine max (soybean) is

    A) Azorhizobium

    B) Bradyrhizobium

    C) Sinorhizobium

    D) Mesorhizobium

    View Answer play_arrow
  • question_answer189) The scientific name of 'Haldi' is

    A) Curcuma longa

    B) C. aromatic

    C) C. zedoaria

    D) C. leucorhiza

    View Answer play_arrow
  • question_answer190) The most primitive family of dicot is

    A) Rosaceae

    B) Magnoliaceae

    C) Utricaceae

    D) Cactaceae

    View Answer play_arrow
  • question_answer191) The present level (2009-10) of \[C{{O}_{2}}\] (ppm) in atmosphere is about

    A) 346

    B) 385

    C) 365

    D) 355

    View Answer play_arrow
  • question_answer192) My corrhizal association of which plant enables it to utilize amino acid as N-source?

    A) Strawberry

    B) Cranberry

    C) Orchids

    D) Pinus

    View Answer play_arrow
  • question_answer193) Which part of the root is most active in absorption of phosphate?

    A) Root cap

    B) Meristematic zone

    C) Root hairs

    D) Root apex

    View Answer play_arrow
  • question_answer194) The main part of entry of \[C{{O}_{3}}\] into leaf is

    A) cuticle

    B) epidermis

    C) stomata

    D) pore

    View Answer play_arrow
  • question_answer195) Oxygen liberated during photosynthesis comes from

    A) carbon dioxide

    B) water

    C) chlorophyll

    D) phosphoglyceric acid

    View Answer play_arrow
  • question_answer196) In anaerobic respiration ATP produced (mol.) is

    A) 24

    B) 12

    C) 2

    D) 8

    View Answer play_arrow
  • question_answer197) Which is an example of 'hydrolases'?

    A) Catalase

    B) Trypsin

    C) Oxidases

    D) Transaminases

    View Answer play_arrow
  • question_answer198) Which one of the following is 100 times more reactive than CFC in destroying ozone ?

    A) \[\text{IFC}\]

    B) \[\text{Br}\,\text{FC}\]

    C) \[\text{UV-B}\]

    D) \[\text{UV-C}\]

    View Answer play_arrow
  • question_answer199) Which of the following process helps in nutrient conservation ?

    A) Meneralization

    B) Leaching

    C) Immobilization

    D) Nitrification

    View Answer play_arrow
  • question_answer200) Engine fitted in two wheeler perform compel combustion of fuel is

    A) two stroke

    B) three stroke

    C) four stroke

    D) one stroke

    View Answer play_arrow

   

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