Solved papers for Punjab Medical Punjab - MET Solved Paper-2008

done Punjab - MET Solved Paper-2008

  • question_answer1) If force\[(F)\], work \[(W)\] and velocity \[(V)\] are taken as fundamental quantities, then the dimensional formula of time\[(T)\]is

    A) \[[WFv]\]

    B) \[[WF{{v}^{-1}}]\]

    C) \[[{{W}^{-1}}{{F}^{-1}}v]\]

    D) \[[W{{F}^{-1}}{{v}^{-1}}]\]

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  • question_answer2) Given two vectors \[\mathbf{\vec{A}}=-\mathbf{\hat{i}}+2\mathbf{\hat{j}}-3\mathbf{\hat{k}}\] and\[\mathbf{\vec{B}}=4\mathbf{\hat{i}}-2\mathbf{\hat{j}}+6\mathbf{\hat{k}}\]. The angle made by\[(\mathbf{\vec{A}}+\mathbf{\vec{B}})\]with \[x-\]axis is

    A) \[{{30}^{o}}\]

    B) \[{{45}^{o}}\]

    C) \[{{60}^{o}}\]

    D) \[{{90}^{o}}\]

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  • question_answer3) A body is thrown vertically up with certain initial velocity. The potential and kinetic energies of the body are equal at a point P in its path. If the same body is thrown with double the velocity upwards, the ratio of potential and kinetic energies of the body when it crosses the same point, is

    A) \[1:1\]

    B) \[1:4\]

    C) \[1:7\]

    D) \[1:8\]

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  • question_answer4) A body of mass \[2kg\] is thrown up vertically with kinetic energy of\[490J\]. If \[g=9.8\text{ }m/{{s}^{2}}\], the height at which the kinetic energy of the body becomes half of the original value, is

    A) \[50m\]

    B) \[25m\]

    C) \[12.5m\]

    D) \[19.6m\]

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  • question_answer5) The apparent weight of a person inside a lift is \[{{w}_{1}}\] when lift moves up with a certain acceleration and is \[{{w}_{2}}\] when lift moves down with same acceleration. The weight of the person when lift moves up with constant speed is

    A) \[\frac{{{w}_{1}}+{{w}_{2}}}{2}\]

    B) \[\frac{{{w}_{1}}-{{w}_{2}}}{2}\]

    C) \[2{{w}_{1}}\]

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

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  • question_answer6) In the figure, pendulum bob on left side is pulled aside to a height h from its initial position. After it is released it collides with the right pendulum bob at rest, which is of same mass. After the collision the two bobs stick together and raise to a height

    A) \[\frac{3h}{4}\]

    B) \[\frac{2h}{3}\]

    C) \[\frac{h}{2}\]

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

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  • question_answer7) A sphere of mass m moving with constant velocity\[u\], collides with another stationary sphere of same mass. If e is the coefficient of restitution, the ratio of the final velocities of the first and second spheres is

    A) \[\frac{1+e}{1-e}\]

    B) \[\frac{1-e}{1+e}\]

    C) \[\frac{e}{1-e}\]

    D) \[\frac{1+e}{e}\]

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  • question_answer8) A block of mass \[2kg\] is placed on the surface of a trolley of mass \[20kg\] which is on a smooth surface. The coefficient of friction between the block and the surface of the trolley is\[0.25\]. If a horizontal force of \[2N\] acts on the block, the acceleration of the system in \[m{{s}^{-2}}\] is\[(g=10m{{s}^{-2}})\]

    A) \[1.8\]

    B) \[1.0\]

    C) \[0.9\]

    D) \[0.09\]

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  • question_answer9) The radius of gyration of a rod of length \[L\] and mass \[M\] about an axis perpendicular to its length and passing through a point at a distance \[L/3\] from one of its ends is

    A) \[\frac{\sqrt{7}}{6}L\]

    B) \[\frac{{{L}^{2}}}{9}\]

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

    D) \[\frac{\sqrt{5}}{2}L\]

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  • question_answer10) A ball of mass \[0.6kg\] attached to a light inextensible string rotates in a vertical circle of radius \[0.75m\] such that it has a speed of\[5m{{s}^{-1}}\] when the string is horizontal. Tension in string when it is horizontal on other side is\[(g=10m{{s}^{-2}})\]

    A) \[30N\]

    B) \[26N\]

    C) \[20N\]

    D) \[6N\]

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  • question_answer11) A body of mass m is raised from the surface of the earth to a height nR (R = radius of earth). Magnitude of the change in the gravitational potential energy of the body is (\[g=\] acceleration due to gravity on the surface of earth)

    A) \[\left( \frac{n}{n+1} \right)mgR\]

    B) \[\left( \frac{n-1}{n} \right)mgR\]

    C) \[\left( \frac{mgR}{n} \right)\]

    D) \[\frac{mgR}{(n-1)}\]

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  • question_answer12) The displacement of a particle of mass\[3g\] executing simple harmonic motion is given by \[Y=3\,\,\sin (0.2t)\] in SI units. The kinetic energy of the particle at a point which is at a distance equal to \[\frac{1}{3}\] of its amplitude from its mean position is

    A) \[12\times {{10}^{3}}J\]

    B) \[25\times {{10}^{-3}}J\]

    C) \[0.48\times {{10}^{-3}}J\]

    D) \[0.24\times {{10}^{-3}}J\]

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  • question_answer13) A body subjected to strain several times will not obey Hookes law due to

    A) yield point

    B) permanent state

    C) elastic fatigue

    D) breaking stress

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  • question_answer14) A liquid drop of radius \[R\] breaks into 64 tiny drops each of radius\[r\]. If the surface tension of the liquid is \[T\], then the gain in energy is

    A) \[48\pi {{R}^{2}}T\]

    B) \[12\pi {{r}^{2}}T\]

    C) \[96\pi {{R}^{2}}T\]

    D) \[192\pi {{r}^{2}}T\]

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  • question_answer15) The pressure on the top surface of an aeroplane wing is \[0.8\times {{10}^{5}}\] Pa and the pressure on the bottom surface is \[0.75\times {{10}^{5}}\] Pa. If the area of each surface is\[50\,\,{{m}^{2}}\], the dynamic lift on the wing is

    A) \[25\times {{10}^{4}}N\]

    B) \[0.5\times {{10}^{4}}N\]

    C) \[5\times {{10}^{4}}N\]

    D) \[0.25\times {{10}^{5}}N\]

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  • question_answer16) Two rods of different materials with coefficients of linear thermal expansion\[{{\alpha }_{1}},\,\,{{\alpha }_{2}}\]and Youngs moduli \[{{Y}_{1}}\] and \[{{Y}_{2}}\] respectively are fixed between two rigid walls. They are heated to have the same increase in temperature. If the rods do not bend and if\[{{\alpha }_{1}}:{{\alpha }_{2}}=2:3\], then the thermal stresses developed in the two rods will be equal when \[{{Y}_{1}}:{{Y}_{2}}\] is equal to

    A) \[2:3\]

    B) \[2:5\]

    C) \[3:2\]

    D) \[5:2\]

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  • question_answer17) What fraction of the volume of a glass flask must be filled with mercury so that the volume of the empty space may be the same at all temperatures? \[({{\alpha }_{glass}}=9\times {{10}^{-6}}/{}^\circ C,\,\,{{\gamma }_{Hg}}=18.9\times {{10}^{-5}}/{}^\circ C)\]

    A) \[\frac{1}{2}\]

    B) \[\frac{1}{7}\]

    C) \[\frac{1}{4}\]

    D) \[\frac{1}{5}\]

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  • question_answer18) For an adiabatic process, the relation between\[V\] and \[T\] is given by

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

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

    C) \[T{{V}^{1-\gamma }}=\]constant

    D) \[T{{V}^{\gamma -1}}=\]constant

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  • question_answer19) Consider the following two statements and choose the correct answer. (a) If heat is added to a system its temperature must always increase. (b) If positive work is done by a system in thermodynamic process, its volume must increase.

    A) Both (a) and (b) are correct

    B) (A) is correct, but (B) is wrong

    C) (B) is correct, but (A) is wrong

    D) Both (A) and (B) are wrong

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  • question_answer20) The power of a black body at temperature \[200K\] is\[544W\]. Its surface area is\[(\sigma =5.67\times {{10}^{-8}}W{{m}^{2}}{{K}^{-4}})\]

    A) \[6\times {{10}^{-2}}{{m}^{2}}\]

    B) \[6{{m}^{2}}\]

    C) \[6\times {{10}^{-6}}{{m}^{2}}\]

    D) \[6\times {{10}^{2}}{{m}^{2}}\]

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  • question_answer21) A uniform wire of linear density \[0.004kg\text{-}{{m}^{-1}}\] when stretched between two rigid supports with a tension \[3.6\times {{10}^{2}}N\] resonates with a frequency of\[420Hz\]. The next harmonic frequency with which the wire resonates is\[490Hz\]. The length of the wire in metres is

    A) \[1.41\]

    B) \[2.14\]

    C) \[2.41\]

    D) \[3.14\]

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  • question_answer22) To increase the frequency by\[20%\], the tension in the string vibrating on a sonometer has to be increased by

    A) \[44%\]

    B) \[33%\]

    C) \[22%\]

    D) \[11%\]

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  • question_answer23) In Ramsden eye-piece the focal length of each lens is\[F\]. The distance of the image formed by the objective lens from the eye lens is

    A) \[\frac{14F}{15}\]

    B) \[\frac{13F}{14}\]

    C) \[\frac{12F}{13}\]

    D) \[\frac{11F}{12}\]

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  • question_answer24) The velocities of light in two different mediums are \[2\times {{10}^{8}}m{{s}^{-1}}\] and \[2.5\times {{10}^{8}}m{{s}^{-1}}\] respectively. The critical angle for these mediums is

    A) \[{{\sin }^{-1}}\left( \frac{1}{5} \right)\]

    B) \[{{\sin }^{-1}}\left( \frac{4}{5} \right)\]

    C) \[{{\sin }^{-1}}\left( \frac{1}{2} \right)\]

    D) \[{{\sin }^{-1}}\left( \frac{1}{4} \right)\]

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  • question_answer25) A diverging meniscus lens of \[1.5\] refractive index has concave surfaces of radii \[3\] and\[4cm.\]The position of the image, if an object is placed \[12cm\] in front of the lens, is

    A) \[7cm\]

    B) \[-8cm\]

    C) \[9cm\]

    D) \[10cm\]

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  • question_answer26) The source is at some distance from an obstacle. Distance between obstacle and the point of observation is \[b\] and wavelength of light is\[\lambda \]. Then the average distance of nth Fresnel zone will be at a distance ... from the point of observation.

    A) \[\frac{bn\,\lambda }{2}\]

    B) \[b-\frac{n\,\lambda }{2}\]

    C) \[b+\frac{n\,\lambda }{2}\]

    D) \[b-n\,\lambda \]

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  • question_answer27) A bar magnet suspended freely in a uniform magnetic field is vibrating with a time period of\[3s\]. If the field strength is increased to\[4\] times of the earlier field strength, the time period will be (in seconds)

    A) 12

    B) 6

    C) 1.5

    D) 0.75

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  • question_answer28) A bar magnet of magnetic moment \[{{M}_{1}}\] is axially cut into two equal parts. If these two pieces are arranged perpendicular to each other, the resultant magnetic moment is\[{{M}_{2}}\]. Then the value of\[{{M}_{1}}/{{M}_{2}}\]is

    A) \[\frac{1}{2\sqrt{2}}\]

    B) \[1\]

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

    D) \[\sqrt{2}\]

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  • question_answer29) The equivalent capacity between the points\[X\]and\[Y\]in the circuit with\[C=1\mu F\]is

    A) \[2\mu F\]

    B) \[3\mu F\]

    C) \[1\mu F\]

    D) \[0.5\mu F\]

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  • question_answer30) Three charges \[1\mu C,\,\,1\mu C\] and \[2\mu C\] are kept at the vertices \[A,\,\,B\] and \[C\] of an equilateral triangle \[ABC\] of \[10cm\] side, respectively. The resultant force on the charge at \[C\] is

    A) \[0.9N\]

    B) \[1.8N\]

    C) \[2.72N\]

    D) \[3.6N\]

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  • question_answer31) Two unknown resistances \[X\] and \[Y\] are connected to left and right gaps of a metre bridge and the balancing point is obtained at \[80cm\] from left. When a \[10\,\,\Omega \] resistance is connected in parallel to \[X\] the balancing point is \[50cm\] from left. The values of \[X\] and \[Y\] respectively are

    A) \[40\Omega ,\,\,9\Omega \]

    B) \[30\Omega ,\,\,7.5\Omega \]

    C) \[20\Omega ,\,\,6\Omega \]

    D) \[10\Omega ,\,\,3\Omega \]

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  • question_answer32) The current in a circuit containing a battery connected to \[2\Omega \] resistance is\[0.9A\]. When a resistance of \[7\Omega \] is connected to the same battery, the current observed in the circuit is\[0.3A\]. Then the internal resistance of the battery is

    A) \[0.1\Omega \]

    B) \[0.5\Omega \]

    C) \[1\Omega \]

    D) \[zero\]

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  • question_answer33) In a thermo-couple the cold junction is at\[{{30}^{o}}C.\] The temperature of inversion is found to be\[{{540}^{o}}C\], then the neutral temperature is

    A) \[{{270}^{o}}C\]

    B) \[{{510}^{o}}C\]

    C) \[{{285}^{o}}C\]

    D) \[{{240}^{o}}C\]

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  • question_answer34) The emf induced in a secondary coil is \[20000\,\,V\] when the current breaks in the primary coil. The mutual inductance is \[5H\] and the current reaches to zero in \[{{10}^{-4}}s\] in the primary. The maximum current in the primary before it breaks is

    A) \[0.1A\]

    B) \[0.4A\]

    C) \[0.6A\]

    D) \[0.8A\]

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  • question_answer35) Two coils are wound on the same iron rod so that the flux generated by one passes through the other. The primary coil has \[{{N}_{p}}\] turns in it and when a current \[2A\] flows through it the flux in it is\[2.5\times {{10}^{-4}}Wb\]. If the secondary coil has 12 turns the mutual inductance of the coils is (assume the secondary coil is in open circuit)

    A) \[10\times {{10}^{-4}}H\]

    B) \[15\times {{10}^{-4}}H\]

    C) \[20\times {{10}^{-4}}H\]

    D) \[25\times {{10}^{-4}}H\]

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  • question_answer36) A coil of 40 H inductance is connected in series with a resistance of \[8\Omega \] and this combination is connected to the terminals of a \[2V\] battery. The inductive time constant of the circuit is (in second)

    A) 40

    B) 20

    C) 5

    D) 0.2

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  • question_answer37) The velocity of the most energetic electrons emitted from a metallic surface is doubled when the frequency \[v\] of the incident radiation is doubled. The work function of this metal is

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

    B) \[\frac{hv}{3}\]

    C) \[\frac{hv}{2}\]

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

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  • question_answer38) A proton and an alpha particle are accelerated through the same potential difference. The ratio of the wavelengths associated with proton and alpha particle respectively is

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

    B) \[2:1\]

    C) \[2:\sqrt{2}:1\]

    D) \[4:1\]

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  • question_answer39) Electron belongs to which of the following class of elementary particles

    A) Hardon

    B) Lepton

    C) Boson

    D) Baryon

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  • question_answer40) In a transistor circuit the base current changes from \[30\mu A\] to\[90\mu A\]. If the current gain of the transistor is 30, the change in the collector current is

    A) \[4\,\,mA\]

    B) \[2\,\,mA\]

    C) \[3.6\,\,mA\]

    D) \[1.8\,\,mA\]

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  • question_answer41) A man slides down on a telegraphic pole with an acceleration equal to one-fourth of acceleration due to gravity. The frictional force between man and pole is equal to in terms of mans weight\[w\]

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

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

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

    D) \[w\]

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  • question_answer42) The magnitude of maximum acceleration is \[\pi \] times that of maximum velocity of a simple harmonic oscillator. The time period of the oscillator in second is

    A) 4

    B) 2

    C) 1

    D) 0.5

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  • question_answer43) A liquid does not wet the solid surface if the angle of contact is

    A) Zero

    B) equal to\[{{45}^{o}}\]

    C) equal to\[{{90}^{o}}\]

    D) greater than\[{{90}^{o}}\]

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  • question_answer44) A clock which keeps correct time at\[{{20}^{o}}C\], is subjected to\[{{40}^{o}}C\]. If coefficient of linear expansion of the pendulum is\[12\times {{10}^{-6}}{{/}^{o}}C\]. How much will it gain or lose time?

    A) 10.3 s/day

    B) 20.6 s/day

    C) 5 s/day

    D) 20 min/day

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  • question_answer45) Two gases \[A\] and \[B\] having same pressure\[P\], volume \[V\] and absolute temperature \[T\] are mixed. If the mixture has the volume and temperature as \[V\] and \[T\] respectively, then the pressure of the mixture is

    A) \[2\,\,P\]

    B) \[P\]

    C) \[\frac{P}{2}\]

    D) \[4P\]

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  • question_answer46) The temperature of the system decreases in the process of

    A) free expansion

    B) adiabatic expansion

    C) isothermal expansion

    D) isothermal compression

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  • question_answer47) In Ramsden eyepiece, the two planoconvex lenses each of focal length \[f\] are separated by a distance\[12cm\]. The equivalent focal length (in \[cm\]) of the eyepiece is

    A) 10.5

    B) 12.0

    C) 13.5

    D) 15.5

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  • question_answer48) In Huygens eyepiece

    A) the cross wires are outside the eyepiece

    B) condition for achromatism is satisfied

    C) condition for minimum spherical aberration is not satisfied

    D) the image formed by the objective is a virtual image

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  • question_answer49) The natural frequency of an\[L-C\] circuit is \[1,25,000\] cycle/s. Then the capacitor \[C\] is replaced by another capacitor with a dielectric medium of dielectric constant\[K\]. In this case, the frequency decreases by\[25kHz\]. The value of \[K\] is

    A) 3.0

    B) 2.1

    C) 1.56

    D) 1.7

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  • question_answer50) In Sun, the important source of energy is

    A) proton-proton cycle

    B) carbon-nitrogen cycle

    C) carbon-carbon cycle

    D) nitrogen-nitrogen cycle

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  • question_answer51) Calculate the difference between \[\Delta E\] and \[\Delta H\]for the following reaction at \[{{27}^{o}}C\](in kcal). \[{{C}_{(graphite)}}+{{H}_{2}}(g)\xrightarrow{{}}C{{H}_{4}}(g)\]

    A) \[-0.6\]

    B) \[-1.2\]

    C) \[+0.6\]

    D) \[+1.2\]

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  • question_answer52) DNA multiplication is called

    A) translation

    B) transduction

    C) transcription

    D) replication

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  • question_answer53) \[{{C}_{2}}{{H}_{5}}Cl\xrightarrow[A{{g}_{2}}O]{Moist}A\xrightarrow[{{360}^{o}}C]{A{{l}_{2}}{{O}_{3}}}B\xrightarrow[{}]{{{S}_{2}}C{{l}_{2}}}\] In the above sequence of reactions, identify\[C.\]

    A) chloretone

    B) chloropicrin

    C) mustard gas

    D) lewisite gas

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  • question_answer54) \[SiC{{l}_{4}}\xrightarrow{{{H}_{2}}O}X\xrightarrow{{{1000}^{o}}C}Y\] In the above reaction, \[X\]and \[Y\] respectively, are

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

    B) \[{{H}_{4}}Si{{O}_{4}}\]and\[Si{{O}_{2}}\]

    C) \[{{H}_{2}}SiC{{l}_{6}}\]and\[Si{{O}_{2}}\]

    D) \[{{H}_{4}}Si{{O}_{4}}\]and\[Si\]

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  • question_answer55) What is the wave number of 4th line in Balmer series of hydrogen spectrum? \[(R=1,09,677c{{m}^{-1}})\]

    A) \[24,630c{{m}^{-1}}\]

    B) \[24,360c{{m}^{-1}}\]

    C) \[24,730c{{m}^{-1}}\]

    D) \[24,372c{{m}^{-1}}\]

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  • question_answer56) Disperse phase and dispersion medium in butter are respectively

    A) solid and liquid

    B) liquid and solid

    C) liquid and liquid

    D) solid and solid

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  • question_answer57) When oxyhaemoglobin changes to de-oxyhaenioglobin, \[F{{e}^{2+}}\]ion changes from

    A) diamagnetic to paramagnetic

    B) paramagnetic to diamagnetic

    C) diamagnetic to ferromagnetic

    D) paramagnetic to ferromagnetic

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  • question_answer58) \[A\]react with \[{{C}_{2}}{{H}_{5}}I\] giving \[B\] and\[Nal\]. Here\[A\]and \[B\] respectively, are

    A) \[C{{H}_{3}}COONa,\,\,C{{H}_{3}}OC{{H}_{3}}\]

    B) \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}},\,\,{{C}_{2}}{{H}_{5}}COO{{C}_{2}}{{H}_{5}}\]

    C) \[{{C}_{2}}{{H}_{5}}ONa,\,\,{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\]

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

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  • question_answer59) Nitration of aniline is achieved by

    A) direct treatment with nitration mixture under reflux

    B) using fuming \[HN{{O}_{3}}\]

    C) acetylation followed by nitration and subsequent hydrolysis

    D) \[KN{{O}_{3}}+conc\,\,HN{{O}_{3}}\]

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  • question_answer60) When\[AgN{{O}_{3}}\]solution is added in excess to \[1\,\,M\] solution of\[CoC{{l}_{3}}\cdot xN{{H}_{3}}\], one mole of \[AgCl\] is formed. What is the value of\[x\]?

    A) 1

    B) 2

    C) 3

    D) 4

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  • question_answer61) Which of the following is the decreasing order of boiling points of\[V\]group hydrides?

    A) \[N{{H}_{3}}>P{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}\]

    B) \[Sb{{H}_{3}}>As{{H}_{3}}>P{{H}_{3}}>N{{H}_{3}}\]

    C) \[P{{H}_{3}}>N{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}\]

    D) \[Sb{{H}_{3}}>N{{H}_{3}}>As{{H}_{3}}>P{{H}_{3}}\]

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  • question_answer62) The atomic number of an element \[M\] is 26. How many electrons are present in the M-shell of the element in its\[{{M}^{3+}}\]state?

    A) 11

    B) 15

    C) 14

    D) 13

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  • question_answer63) \[{{N}_{2}}(g)+3{{H}_{2}}(g)2N{{H}_{3}}(g)+22kcal\]. The activation energy for the forward reaction is 50 kcal. What is the activation energy for the backward reaction?

    A) \[-72kcal\]

    B) \[-28kcal\]

    C) \[+28kcal\]

    D) \[+72kcal\]

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  • question_answer64) The raw material used in nylon-6 is

    A) adipic acid

    B) phthalic acid

    C) ethylene glycol

    D) caprolactum

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  • question_answer65) Which one of the following reactions is called Rosemond reaction?

    A) Aldehydes are reduced to alcohols

    B) Acids are converted to acid chlorides

    C) Alcohols are reduced to hydrocarbons

    D) Acid chlorides are reduced to aldehydes

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  • question_answer66) \[IUPAC\]name of\[C{{H}_{3}}-C{{H}_{2}}-\underset{\begin{align} & | \\ & C{{H}_{2}} \\ & | \\ & C{{H}_{3}} \\ \end{align}}{\mathop{CH}}\,-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{2}}\]is

    A) 2-methyl-3-ethyl-1-pentene

    B) 3-ethyl-4-methyl-4-pentene

    C) 3-ethyl-2-methyl-1-pentene

    D) 3-methyl-2-ethyl-1-pentene

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  • question_answer67) In the separation of noble gas mixture from air by Ramsay Rayleighs first method, the substances used for the removal of\[{{N}_{2}}\]and\[{{O}_{2}}\] respectively, are

    A) \[Cu\]and\[Mg\]

    B) \[Mg\]and\[Cu\]

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

    D) \[KOH\]solution

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  • question_answer68) The fraction of element disintegrated after 4 half-lifes in percentage is

    A) \[75%\]

    B) \[87.5%\]

    C) \[93.75%\]

    D) \[92.5%\]

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  • question_answer69) The most probable velocity of a gas molecule at \[298K\] is\[300m/s\]. Its RMS velocity, in\[(m/s)\] is

    A) 420

    B) 245

    C) 402

    D) 367

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  • question_answer70) Schottky defect is observed in the crystal of

    A) \[NaCl\]

    B) \[TiCl\]

    C) \[AgCl\]

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

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  • question_answer71) A mixture of amylose and amylopectin is called

    A) lactose

    B) starch

    C) cellulose

    D) sucrose

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  • question_answer72) Match the following Set I Set II \[{{C}_{2}}{{H}_{5}}OH\xrightarrow[{{170}^{o}}C]{Con.{{H}_{2}}S{{O}_{4}}}\] 1. Methane \[CH{{I}_{3}}\xrightarrow[Ag(Powder)]{\Delta }\] 2. Ethylene \[\begin{align} & C{{H}_{3}}COONa(aq) \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\xrightarrow{Electrolysis} \\ \end{align}\] 3. Benzene \[C{{H}_{3}}COONa\xrightarrow[CaO\,\,\Delta ]{NaOH}\] 4. Acetylene 5. Ethane The correct match is

    A) \[A-2,\,\,B-4,\,\,C-5,\,\,D-1\]

    B) \[A-2,\,\,B-4,\,\,C-5,\,\,D-3\]

    C) \[A-4,\,\,B-2,\,\,C-5,\,\,D-1\]

    D) \[A-4,\,\,B-2,\,\,C-5,\,\,D-3\]

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  • question_answer73) One gas bleaches the colour of flowers by reduction and another gas by oxidation. The gases respectively, are

    A) \[S{{O}_{2}}\]and\[C{{l}_{2}}\]

    B) \[CO\]and\[C{{l}_{2}}\]

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

    D) \[{{H}_{2}}S\]and\[Br\]

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  • question_answer74) Lanthanide contraction is due to increase in

    A) shielding by 4f electrons

    B) atomic number

    C) effective nuclear charge

    D) sizeof4forbitals

    View Answer play_arrow
  • question_answer75) What is the electrode potential (in\[V\]) of the following electrode at\[{{25}^{o}}C\]? \[N{{i}^{2+}}(0.1M/Ni(s)\](Standard reduction potential of\[N{{i}^{2+}}|Ni\]is\[-0.25V,\,\,\frac{2.303RT}{F}=0.06\]

    A) \[-0.28V\]

    B) \[-0.34V\]

    C) \[-0.82V\]

    D) \[-0.22V\]

    View Answer play_arrow
  • question_answer76) What is the equation for the equilibrium constant\[({{K}_{c}})\]for the following reaction? \[\frac{1}{2}A(g)+\frac{1}{3}(g)\frac{2}{3}C(g)\]

    A) \[{{K}_{c}}=\frac{{{[A]}^{1/2}}{{[B]}^{1/3}}}{{{[C]}^{3/2}}}\]

    B) \[{{K}_{c}}=\frac{{{[C]}^{3/2}}}{{{[A]}^{2}}{{[B]}^{3}}}\]

    C) \[{{K}_{c}}=\frac{{{[C]}^{2/3}}}{{{[A]}^{1/2}}{{[B]}^{1/3}}}\]

    D) \[{{K}_{c}}=\frac{{{[C]}^{2/3}}}{{{[A]}^{1/2}}{{[B]}^{1/3}}}\]

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  • question_answer77) A drug that is antipyretic as well as analgesic is

    A) chloroquine

    B) penicillin

    C) paracetamol

    D) Chloropromazine hydrochloride

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  • question_answer78) What is the conjugate base of\[HSO_{4}^{-}\]?

    A) \[{{H}_{2}}S{{O}_{4}}\]

    B) \[HSO_{4}^{2-}\]

    C) \[SO_{4}^{2-}\]

    D) \[{{H}^{+}}\]

    View Answer play_arrow
  • question_answer79) Observe the following reaction\[A(g)+3B(g)\xrightarrow{{}}2C(g)\] The rate of this reaction\[\left( =\frac{d[A]}{dt} \right)\]is \[3\times {{10}^{-3}}\] mol\[{{L}^{-1}}{{\min }^{-1}}\]. What is the value of\[-\frac{d[B]}{dt}\]in mol\[{{L}^{-1}}{{\min }^{-1}}\]?

    A) \[3\times {{10}^{-3}}\]

    B) \[9\times {{10}^{-3}}\]

    C) \[{{10}^{-3}}\]

    D) \[1.5\times {{10}^{-3}}\]

    View Answer play_arrow
  • question_answer80) The bond angle in \[As{{H}_{3}}\] is greater than that in

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

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

    C) \[BC{{l}_{3}}\]

    D) None of these

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  • question_answer81) A \[0.5g/L\] solution of glucose is found to be isotonic with a \[2.5g/L\] solution of an organic compound. What will be the molecular weight of that organic compound?

    A) 300

    B) 600

    C) 900

    D) 200

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  • question_answer82) \[t-\]butyl chloride preferably undergo hydrolysis by

    A) \[{{S}_{N}}1\]mechanism

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

    C) any of (a) and (b)

    D) None of the above

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  • question_answer83) Which of the following has lowest boiling point?

    A) \[NaCl\]

    B) \[CuCl\]

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

    D) \[CsCl\]

    View Answer play_arrow
  • question_answer84) To dissolve argentite ore which of the following is used?

    A) \[Na[Ag{{(CN)}_{2}}]\]

    B) \[NaCN\]

    C) \[NaCl\]

    D) \[HCl\]

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  • question_answer85) The ratio of carbon, hydrogen and oxygen in 2-methyl benzoic acid is

    A) \[4:2:2\]

    B) \[2:4:1\]

    C) \[4:4:1\]

    D) \[4:4:2\]

    View Answer play_arrow
  • question_answer86) The best method to separate the mixture of ortho and para nitrophenol \[(1:1)\] is

    A) vaporisation

    B) colour spectrum

    C) distillation

    D) crystallisation

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  • question_answer87) Acetylene and \[HCHO\] react in presence of copper acetylide catalyst to form

    A) 1-butyne-1, 4-diol

    B) 2-butyne-1, 2-diol

    C) 2-butyne-1, 4-diol

    D) None of these

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  • question_answer88) The effective atomic number of\[Cr\]in \[Cr{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}\]is

    A) 35

    B) 36

    C) 27

    D) 33

    View Answer play_arrow
  • question_answer89) Which of the following forms colourless compounds?

    A) \[S{{c}^{3+}}\]

    B) \[{{V}^{3+}}\]

    C) \[T{{i}^{3+}}\]

    D) \[C{{r}^{3+}}\]

    View Answer play_arrow
  • question_answer90) Match list-I with list-II and select the correct answer using the code given below

    List I (successive IE) List II (Elements)
    \[I{{E}_{1}}\] \[I{{E}_{2}}\] \[I{{E}_{3}}\] \[(kJ\,mo{{l}^{-1}})\]
    1. 1320 - - A. H
    2. 520 7297 11810 B. Li
    3. 900 1758 14810 C. Be
    4. 800 2428 3660 D. B

    A) \[A-2,\,\,B-1,\,\,C-4,\,\,D-3\]

    B) \[A-3,\,\,B-4,\,\,C-2,\,\,D-1\]

    C) \[A-4,\,\,B-3,\,\,C-1,\,\,D-2\]

    D) \[A-1,\,\,B-2,\,\,C-3,\,\,D-4\]

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  • question_answer91) The chemical formula of feldspar is

    A) \[KAlS{{i}_{3}}{{O}_{8}}\]

    B) \[N{{a}_{3}}Al{{F}_{6}}\]

    C) \[NaAl{{O}_{6}}\]

    D) \[{{K}_{2}}S{{O}_{4}}\cdot A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\cdot 4Al{{(OH)}_{3}}\]

    View Answer play_arrow
  • question_answer92) A radioactive substance \[_{88}{{X}^{228}}\](IIA) emits\[3\alpha \]and\[3\beta \]particles to form\[Y\]. To which group of long form of the periodic table does\[Y\] belong?

    A) \[IVA\]

    B) \[VA\]

    C) \[VIA\]

    D) \[VIIA\]

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  • question_answer93) The functional groups present in salol are

    A) \[-N{{H}_{2}}\]and\[-OR\]

    B) \[OH\]and\[-COR\]

    C) \[-N{{H}_{2}}\]and\[-COOH\]

    D) \[-OH\]and\[-COOR\]

    View Answer play_arrow
  • question_answer94) Which of the following statements is correct?

    A) Silicon doped with boron is an \[n-\]type semiconductor

    B) Silicon doped with arsenic is a \[p-\]type semiconductor

    C) Metals are good conductors of electricity

    D) Electrical conductivity of semiconductors decreases with increasing temperature

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  • question_answer95) Hybridisation of oxygen in diethyl ether is

    A) \[sp\]

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

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

    D) \[s{{p}^{3}}d\]

    View Answer play_arrow
  • question_answer96) Which one of the following salts give an acidic solution in water?

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

    B) \[N{{H}_{4}}Cl\]

    C) \[NaCl\]

    D) \[C{{H}_{3}}COON{{H}_{4}}\]

    View Answer play_arrow
  • question_answer97) Which of the following is not tetrahedral?

    A) \[BF_{4}^{-}\]

    B) \[NH_{4}^{+}\]

    C) \[CO_{3}^{2-}\]

    D) \[SO_{4}^{2-}\]

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  • question_answer98) Nitrobenzene on reduction with zinc and\[N{{H}_{4}}Cl\]gives

    A) azobenzene

    B) aniline

    C) hydrazobenzene

    D) \[N-\]phenyl hydroxylamine

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  • question_answer99) Bhopal gas tragedy of 1984 was caused by

    A) carbon monoxide

    B) phosgene

    C) methyl cyanate

    D) methyl isocyanate

    View Answer play_arrow
  • question_answer100) Which of the following is not a peroxy acid?

    A) Perphosphoric acid

    B) Pemitric acid

    C) Perdisulphuric acid

    D) Perchloric acid

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  • question_answer101) Name given to fossil hominid of Shivalik hills in India is

    A) Ramapithecus

    B) Australopithecus

    C) Pithecanthropus

    D) Neanderthalensis

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  • question_answer102) Vagina, oesophagus, urethra contain which type of tissue?

    A) Stratified squamous epithelium

    B) Simple squamous epithelium

    C) Ciliated epithelium

    D) Columnar epithelium

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  • question_answer103) In five kingdom system of classification of RH Whittaker, how many kingdoms contain eukaryotes?

    A) Four kingdoms

    B) One kingdom

    C) Two kingdoms

    D) Three kingdoms

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  • question_answer104) Improvement of human race through hereditary qualities is called

    A) euthenics

    B) human heredity

    C) human demography

    D) eugenics

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  • question_answer105) Mammary glands are modified

    A) sweat gland

    B) sebaceous gland

    C) lacrymal gland

    D) endocrine gland

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  • question_answer106) Inheritance of a acquired characters comes under

    A) Lamarckism

    B) Darwinism

    C) Neo-Lamarckism

    D) Neo-Darwinism

    View Answer play_arrow
  • question_answer107) The Mesozoic era is also called as

    A) the golden age of the amphibians

    B) the golden age of the reptiles

    C) the golden age of the mammals

    D) the golden age of the birds

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  • question_answer108) Loop of Henie is associated with

    A) excretory system

    B) respiratory system

    C) reproductive system

    D) digestive system

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  • question_answer109) Which of the following is an exclusive character of class-Mammalia?

    A) Homoiothermy

    B) Internal fertilization

    C) Presence of a 4-chambered heart

    D) Presence of a muscular diaphragm

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  • question_answer110) Symmetry in Cnidaria is

    A) radial

    B) bilateral

    C) pentamerous

    D) spherical

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  • question_answer111) Blood of earthworm is

    A) red in colour, due to dissolved haemoglobin in corpuscle

    B) red in colour, due to dissolved haemoglobin in plasma

    C) blue in colour, due to dissolved haemocyanin in plasma

    D) blue in colour, due to dissolved haemocyanin in corpuscles

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  • question_answer112) Agranulocytes are

    A) lymphocytes and monocytes

    B) eosinophils and basophils

    C) lymphocytes and eosinophils

    D) basophils and monocytes

    View Answer play_arrow
  • question_answer113) Parthenogenesis is a term of

    A) sexual reproduction

    B) asexual reproduction

    C) budding

    D) regeneration

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  • question_answer114) Pyramid that is never inverted

    A) energy

    B) mass

    C) number

    D) size

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  • question_answer115) Two species occupying same or overlapping area are called as

    A) sympatric

    B) allopatric

    C) parapatric

    D) ring species

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  • question_answer116) CFCs are responsible for

    A) ozone layer depletion

    B) global warming

    C) acid rain

    D) None of the above

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  • question_answer117) Amoeba differs from Entamoeba in having

    A) contractile vacuole

    B) pseudopodia

    C) ectoplasm

    D) cytostome

    View Answer play_arrow
  • question_answer118) A dihybrid for qualitative trait is corssed with homozygous recessive individual of its type, the phenotypic ratio is

    A) \[1:2:1\]

    B) \[3:1\]

    C) \[1:1:1:1\]

    D) \[9:3:3:1\]

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  • question_answer119) Phenomenon of industrial melanism demonstrates

    A) reproductive isolation

    B) induced mutation

    C) natural selection

    D) geographical isolation

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  • question_answer120) At menopause there is rise in urinary excretion of

    A) FSH

    B) STH

    C) LH

    D) MSH

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  • question_answer121) Zoological name of common Indian krait is

    A) Bungarus caeruleus

    B) Ophiophagus Hannah

    C) Viper russeli

    D) Naja naja

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  • question_answer122) Study of ticks and mites is

    A) Acarology

    B) Entomology

    C) Malacology

    D) Carcinology

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  • question_answer123) In acid rain,\[S{{O}_{2}}\]accounts by

    A) \[70%\]

    B) \[100%\]

    C) \[50%\]

    D) \[30%\]

    View Answer play_arrow
  • question_answer124) Biosphere reserve programme started in India

    A) 1986

    B) 1984

    C) 1982

    D) 1988

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  • question_answer125) Urea formation takes place in

    A) liver

    B) kidney

    C) pancreas

    D) intestine

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  • question_answer126) An institution where valuable plant material-likely to become irretrievably lost in the wild or in cultivation is preserved viable condition is known as

    A) genome

    B) gene library

    C) gene bank

    D) herbarium

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  • question_answer127) Shock movement in touch me not plant is

    A) seismonasty

    B) photo nasty

    C) chemonasty

    D) the rmonasty

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  • question_answer128) Which is correct for the structure of cell wall of bacteria and fungi?

    A) Both are made up of cellulose

    B) Both have mucopeptide

    C) Both are made up of N-acetylglucosamine

    D) None of the above

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  • question_answer129) Bacterium which reduces nitrates in soil to nitrogen is

    A) Nitro so monas

    B) Pseudomonas

    C) Rhizobium

    D) Clostridium

    View Answer play_arrow
  • question_answer130) Surrounding membrane of vacoule is called

    A) tonoplast

    B) symplast

    C) apoplast

    D) phragmoplast

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  • question_answer131) Living fossil is

    A) Ginkgo biloba

    B) Gnetum ula

    C) Pinus roxburghii

    D) Cycas revolute

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  • question_answer132) Sucking roots are present in the plant

    A) Betal

    B) Cuscuta

    C) Mangifera

    D) Solanum

    View Answer play_arrow
  • question_answer133) For cryopreservation, plant materials are frozen at

    A) \[-{{196}^{o}}C\]

    B) \[-{{150}^{o}}C\]

    C) \[-{{80}^{o}}C\]

    D) \[-{{40}^{o}}C\]

    View Answer play_arrow
  • question_answer134) Casparian strip is a characteristic feature of

    A) pericycle

    B) periblem

    C) endodermis

    D) hypodermis

    View Answer play_arrow
  • question_answer135) Guttation occurs through

    A) lenticels

    B) hydathodes

    C) periderm

    D) stomata

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  • question_answer136) Phycology is the study of

    A) algae

    B) fern

    C) fungi

    D) bryophytes

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  • question_answer137) ......... is a CAM plant.

    A) maize

    B) pineapple

    C) onion

    D) pea

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  • question_answer138) Edible part of the apple is

    A) mesocarp

    B) calyx

    C) thalamus

    D) pericarp

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  • question_answer139) Sunken stomata is found in leaves of

    A) Trifolium

    B) Lemna

    C) Nerium

    D) Lilium

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  • question_answer140) The accumulated food reserve in fungi is

    A) protein

    B) starch

    C) glycogen

    D) fat

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  • question_answer141) Euploidy is best explained by

    A) exact multiple of a haploid set of chromosomes

    B) one chromosomes less than the haploid set of chromosomes

    C) one chromosomes more than the haploid set of chromosomes

    D) one chromosomes more than the diploid set of chromosomes

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  • question_answer142) Insectivorous plants live in a soil that is usually deficient in

    A) nitrate

    B) chloride

    C) potassium

    D) magnesium

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  • question_answer143) In aerobic respiration, citric acid cycle takes place in

    A) cytosol

    B) mitochondria

    C) peroxisomes

    D) endoplasmic reticulum

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  • question_answer144) The highest advanced family is

    A) Cruciferae

    B) Cucurbitaceae

    C) Compositae

    D) Euphorbiaceae

    View Answer play_arrow
  • question_answer145) Stalk with which ovules remain attached to the placenta is called

    A) funicle

    B) raphe

    C) hilum

    D) chalaza

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  • question_answer146) In pteridophytes, phloem is without

    A) sieve cells

    B) sieve tubes

    C) companion cells

    D) bast fibres

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  • question_answer147) Purified antibiotic penicillin of Penicillium notatum was discovered by

    A) Alexander Flemming

    B) Howard Floxy

    C) Robert Hooke

    D) Carolus Linnaeus

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  • question_answer148) First vascular plant is

    A) Thallophyta

    B) Bryophyta

    C) Pteridophyta

    D) Spermatophyta

    View Answer play_arrow
  • question_answer149) Bakers yeast is

    A) S. cerevisae

    B) S. ludwingii

    C) S. octosporus

    D) Schizosdccharomyces

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  • question_answer150) Dominant generation in bryophytes is

    A) capsule

    B) sporophyte

    C) gametophyte

    D) seta

    View Answer play_arrow
  • question_answer151) Largest flower is

    A) Rafflesia arnnoldi

    B) Helianthus annuus

    C) Welwitschia morabilis

    D) Nelumbo nuccifera

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  • question_answer152) Halophytes are

    A) fire resistant

    B) cold resistant

    C) salt resistant

    D) sand loving

    View Answer play_arrow
  • question_answer153) Natural genetic engineer is

    A) Bacillus subtilis

    B) Pseudomonas sp.

    C) Escherichia coli

    D) Agrobacterium tumefaciens

    View Answer play_arrow
  • question_answer154) Cell respiration is carried out by

    A) ribosome

    B) mitochondria

    C) chloroplast

    D) Golgi bodies

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  • question_answer155) Fluid mosaic model of plasma membrane was given by

    A) Robertson

    B) Robert Hooke

    C) Singer and Nicholson

    D) Pantin and Mast

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  • question_answer156) Which amino acids are present in histones?

    A) Lysine and histidine

    B) Valine and histidine

    C) Arginine and lysine

    D) Arginine and histidine

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  • question_answer157) Which has vascular tissue, produces spores, but does not has seeds?

    A) Bryophyta

    B) Pteridophyta

    C) Gymnosperms

    D) Angiosperms

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  • question_answer158) Which enzyme joins DNA fragments?

    A) DNA ligase

    B) DNA polymerase

    C) DNA gyrase

    D) Topoisomerase

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  • question_answer159) The structure present in cyanobacteria (BGA) helping in\[{{N}_{2}}\]fixation is

    A) haplosperm

    B) holostrum

    C) holotrema

    D) heterocyst

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  • question_answer160) RNA has uracil instead of

    A) cytosine

    B) guanine

    C) thymine

    D) None of these

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  • question_answer161) Endosperm of gymnosperm is

    A) diploid

    B) tetraploid

    C) haploid

    D) None of these

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  • question_answer162) Binomial nomenclature of plants was given by

    A) Engler

    B) Linnaeus

    C) Prand

    D) Both [a] and [c]

    View Answer play_arrow
  • question_answer163) Bacterial blight of rice is caused due to

    A) Xanthomonas oryzae

    B) Helminthosporium oryzae

    C) Pseudomonas falcatum

    D) Xanthomonas falcatum

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  • question_answer164) Female reproductive part of bryophytes is

    A) antheridium

    B) oogonium

    C) archegonium

    D) sporangium

    View Answer play_arrow
  • question_answer165) Chitin is present in the cell wall of

    A) fungi

    B) bacteria

    C) yeast

    D) algae

    View Answer play_arrow
  • question_answer166) Triple fusion in angiosperm is the fusion of second sperm with

    A) antipodal cell and one synergid cell

    B) two antipodal cells

    C) two synergid cells

    D) two polar nuclei

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  • question_answer167) Father of botany is

    A) Linnaeus

    B) Leeuwenhoek

    C) Theophrastus

    D) Aristotle

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  • question_answer168) Hormone inducing fruit ripening is

    A) ethylene

    B) cytokinin

    C) gibberellic acid

    D) abscisic acid

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  • question_answer169) Red colour of tomato is due to

    A) \[\beta -\]carotene

    B) anthocyanin

    C) lycopene

    D) erythrocyanin

    View Answer play_arrow
  • question_answer170) In which phase proteins for spindle fibre formation are synthesized?

    A) \[{{G}_{1}}-\]phase

    B) \[{{G}_{2}}-\]phase

    C) \[S-\]phase

    D) Anaphase

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  • question_answer171) Desert grasses often roll their leaves due to presence of

    A) oily surface

    B) bulli form cells

    C) spines

    D) None of these

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  • question_answer172) \[{{F}_{1}}\]particles are present in

    A) chloroplast

    B) mitochondria

    C) ribosome

    D) rough ER

    View Answer play_arrow
  • question_answer173) Sucrose, a common table sugar is composed of

    A) glucose + fructose

    B) glucose + galactose

    C) fructose + galactose

    D) None of the above

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  • question_answer174) Which is not true about sphaerosomes?

    A) Arise from ER

    B) Related to fat

    C) Single membrane bound structure

    D) Involved in photorespiration

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  • question_answer175) The species listed in Red Data book are

    A) threatened

    B) endangered

    C) rare

    D) All of these

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  • question_answer176) Inflorescence of family-Compositae is

    A) perianth

    B) iodicule

    C) capitulum

    D) hypanthodium

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  • question_answer177) Prokaryotic ribosome has sedimentation coefficient of

    A) \[80S\]

    B) \[70S\]

    C) \[40S\]

    D) \[60S\]

    View Answer play_arrow
  • question_answer178) The condition where filaments and anthers are fused throughout the entire length is

    A) synandrous

    B) gynandrous

    C) protandrous

    D) syngenesius

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  • question_answer179) In diot stem, vascular bundles are

    A) numerous scattered

    B) arranged in a ring

    C) without cambium

    D) surrounded by bundle sheath

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  • question_answer180) Neurons of people suffering from diabetes insipidus do not secrete

    A) enzyme

    B) steroid

    C) fattyacid

    D) ADH

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  • question_answer181) Insulin and glucagon are transported to target organ by

    A) lymph

    B) blood

    C) pancreatic duct

    D) cystic duct

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  • question_answer182) Which is false for nutrition in Amoeba?

    A) Omnivorous

    B) Pseudopodia feeder

    C) Holozoic nutrition

    D) Photoautotroph

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  • question_answer183) Ions that must be present for binding the cross bridges is

    A) \[N{{a}^{+}}\]

    B) \[C{{a}^{2+}}\]

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

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

    View Answer play_arrow
  • question_answer184) Dreaming occurs in

    A) \[\alpha -\]sleep

    B) REM sleep

    C) deep sleep

    D) slow wave sleep

    View Answer play_arrow
  • question_answer185) Study of behaviour of animal is called

    A) ethology

    B) parapsychology

    C) euphenics

    D) etiology

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  • question_answer186) Minamata disease is caused due to presence of ......... in water.

    A) cadmium

    B) lead

    C) arsenic

    D) mercury

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  • question_answer187) Rain is called acid rain when its pH is below

    A) 7

    B) 6.5

    C) 6

    D) 5.6

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  • question_answer188) The immediate cause of induction of ovulation in female is the large plasma surge of

    A) progesterone

    B) estriadiol

    C) LH

    D) FSH

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  • question_answer189) HIV virus affect......... in AIDS patient.

    A) cytotoxic T-cell

    B) M-N cell

    C) suppressor cell

    D) helper T-cells

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  • question_answer190) Which is incorrect?

    A) Wings of insects and birds are analogous

    B) Wings of insects and bats are analogous

    C) Wings of insects and birds are homologous

    D) Wings of bats and birds are homologous

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  • question_answer191) Dental formula of human being is

    A) \[{{I}_{2}},\,\,{{C}_{2}},\,\,{{P}_{1}},\,\,{{M}_{3}}\]

    B) \[{{I}_{2}},\,\,{{C}_{1}},\,\,{{P}_{2}},\,\,{{M}_{3}}\]

    C) \[{{I}_{3}},\,\,{{C}_{1}},\,\,{{P}_{2}},\,\,{{M}_{2}}\]

    D) \[{{I}_{2}},\,\,{{C}_{2}},\,\,{{P}_{3}},\,\,{{M}_{1}}\]

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  • question_answer192) Which is not correctly matched?

    A) Annedlida\[\to \]Enterocoelomate

    B) Platyhelminthes\[\to \]Acoelomate

    C) Arthropoda\[\to \]Schizocoelomate

    D) Nemathelminthes\[\to \]Pseudocoelomate

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  • question_answer193) Maximum net productivity in the terrestrial ecosystem is in

    A) rain forest

    B) deciduous forest

    C) mangrove plantation

    D) Both (a) and (b)

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  • question_answer194) ......... acts as a shock absorber to cushion when tibia and femur came together.

    A) ligament

    B) cartilage

    C) tendon

    D) disc

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  • question_answer195) In higher vertebrates, SA nodes helps in

    A) conduction of blood

    B) initiation of heart beat

    C) opening of tricuspid valve

    D) opening of bicuspid valve

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  • question_answer196) Renin is secreted from

    A) juxtaglomerular cells

    B) podocytes

    C) nephridia

    D) stomach

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  • question_answer197) The law of limiting factors was proposed with particular reference to photosynthesis. Identify the scientist who proposed this law?

    A) Calvin

    B) Weismann

    C) Emerson

    D) Blackmann

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  • question_answer198) Osmoregulation in Paramecium is a function of

    A) contractile vacuole

    B) trichocysts

    C) cytopyge

    D) cytostome

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  • question_answer199) Which of the following is a day neutral plant?

    A) Helianthus annuus

    B) Euphorbia pulcherrima

    C) Avena sativa

    D) Betavulgaris

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  • question_answer200) Water vascular system found in

    A) Mollusca

    B) Arthropoda

    C) Annelida

    D) Echinodermata

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