Solved papers for JCECE Medical JCECE Medical Solved Paper-2006

done JCECE Medical Solved Paper-2006

  • question_answer1) Which of the following rays can be polarised?

    A) Water wave and sound wave

    B) Sound wave and radio wave

    C) X-rays and water wave

    D) Light wave and X-ray

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  • question_answer2) Quantum nature can prove :

    A) Interference

    B) photoelectric effect

    C) diffraction

    D) polarization

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  • question_answer3) Which one has highest binding energy per nucleon?

    A) \[F{{e}^{56}}\]

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

    C) \[{{U}^{235}}\]

    D) \[C{{a}^{40}}\]

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  • question_answer4) Huygens wave theory cant explain:

    A) interference

    B) photoelectric-effect

    C) diffraction

    D) all of these

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  • question_answer5) If the refractive index of a glass prism is cot (A/2) and A is angle of prism, then angle of minimum deviation is:

    A) \[\left( \frac{\pi }{2}-A \right)\]

    B) \[\left( 2\pi -\frac{A}{2} \right)\]

    C) \[\left( \frac{\pi -A}{2} \right)\]

    D) \[(\pi -2A)\]

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  • question_answer6) If\[f\] is the frequency when mass m is attached to a spring of spring constant\[k,\]then new frequency for this arrangement, is:

    A) \[f/2\]

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

    C) \[f/\sqrt{2}\]

    D) \[2\sqrt{2f}\]

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  • question_answer7) What is equivalent capacitance of the network? Each capacitor has \[\text{1}\,\text{ }\!\!\mu\!\!\text{ F}\]capacitance:

    A) \[\frac{1}{3}\]

    B) \[2\mu F\]

    C) \[\frac{3}{2}\mu F\]

    D) \[3\mu F\]

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  • question_answer8) The two capacitors \[{{\text{C}}_{\text{1}}}\]and \[{{\text{C}}_{\text{2}}}\]are charged to potentials\[{{\text{V}}_{1}}\]and\[{{\text{V}}_{2}}\] and then connected in parallel. There will be no flow of energy, if:

    A) \[{{C}_{1}}{{V}_{1}}={{C}_{2}}{{V}_{2}}\]

    B)  \[{{V}_{1}}={{V}_{2}}\]

    C)  \[{{C}_{1}}=C{{  }_{2}}\]

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

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  • question_answer9) Which is not the unit of electric field?

    A) \[\frac{N}{C}\]

    B) \[\frac{N-m}{C}\]

    C) \[\frac{V}{m}\]

    D) \[\frac{J}{C-m}\]

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  • question_answer10) If a body moves for 2 s with 15 m/s velocity towards east and then moves with 5 m/s velocity for 8 s towards north, then average velocity is :

    A) 5 m/s

    B) 15 m/s

    C) 30 m/s

    D) 7.5 m/s

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  • question_answer11) For monoatomic gas which is correct?

    A) \[{{C}_{V}}=\frac{3}{5}R\]

    B) \[{{C}_{P}}=\frac{5}{2}R\]

    C) \[{{C}_{P}}-{{C}_{V}}=2R\]

    D) \[\frac{{{C}_{P}}}{{{C}_{V}}}=\frac{3}{5}\]

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  • question_answer12) Which is correct relationship for diode?

    A)

    B)

    C)

    D)

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  • question_answer13) In a properly biased transistor:

    A) both depletion layers are equally large

    B) both depletion layers are equally small

    C) emitter-base depletion layer is large but base-collector depletion layer is small

    D) emitter-base depletion layer is small but base-collector depletion layer is large

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  • question_answer14) A wire has resistance \[20\,\Omega .\] If its length is increased three times its initial length, then new resistance is:

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

    B) \[80\,\Omega .\]

    C) \[60\,\Omega .\]

    D) \[180\,\Omega .\]

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  • question_answer15) A circular coil of diameter d is rotated in electric field such that electric flux is changed from zero to maximum value \[\text{o }\!\!|\!\!\text{ }\] then, electric field is:

    A) \[\frac{\text{o }\!\!|\!\!\text{ }}{\pi {{d}^{2}}}\]

    B) \[\frac{\text{2o }\!\!|\!\!\text{ }}{\pi {{d}^{\,2}}}\]

    C) \[\frac{4{{d}^{2}}}{\pi \text{o}{{\text{ }\!\!|\!\!\text{ }}^{\,2}}}\]

    D) \[\frac{4\text{o }\!\!|\!\!\text{ }}{\pi {{d}^{2}}}\]

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  • question_answer16) Work done in rotating a bar magnet from 0 to angle \[\text{ }\!\!\theta\!\!\text{ }\] is:

    A) \[MH(1-cos\theta )\]

    B) \[\frac{M}{H}(1-cos\theta )\]

    C) \[\frac{M}{H}(cos\theta -1)\]

    D) \[MH(cos\theta -1)\]

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  • question_answer17) If a convex lens of refractive index 1.44 is dipped in liquid of refractive index 1.49, then it behaves as:

    A) concave lens

    B) convex lens

    C) mirror

    D) none of these

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  • question_answer18) If a source approaches and recedes from observer with same velocity, the ratio of frequencies (apparent) is 6 : 5, then velocity of source is: \[({{v}_{s}}=330\,m/s)\]

    A) 20 m/s

    B) 10 m/s

    C) 30 m/s

    D) 33 m/s

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  • question_answer19) If a boy swings in a circle so the minimum and maximum height from ground is 3 m and 6 m, then, its maximum velocity is:

    A) \[5\sqrt{2}\,m/s\]

    B) \[2\sqrt{5}\,m/s\]

    C) \[3\sqrt{5}\,m/s\]

    D) \[5\sqrt{3}\,m/s\]

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  • question_answer20) If percentage decrease in radius of earth is 1% without changing its mass, then percentage change in acceleration due to gravity is:

    A) 2% decrease

    B) 2% increase

    C) 1% decrease

    D) 1% increase

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  • question_answer21) A black body radiates at two temperatures \[{{T}_{1}}\]and \[{{T}_{2}}\]such that \[{{T}_{1}}<{{T}_{2}}.\]The frequency corresponding to maximum intensity is:

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

    B) more at \[{{T}_{1}}\]

    C) equally in the two cases

    D) cannot say

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  • question_answer22) If temperature is increased by 1 K at constant volume, then work done on the gas is:

    A) \[\frac{5}{2}R\]

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

    C) zero

    D) \[\frac{1}{2}R\]

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  • question_answer23) A body cools from \[\text{75}{{\,}^{\text{o}}}\text{C}\]to \[\text{70}{{\,}^{\text{o}}}\text{C}\]in time \[{{t}_{1}},\]from \[\text{70}{{\,}^{\text{o}}}\text{C}\]to \[65{{\,}^{o}}C\]in time\[{{t}_{2}}\]and from \[65{{\,}^{o}}C\]to \[60{{\,}^{o}}C\]in time \[{{t}_{3}},\] then:

    A) \[{{t}_{3}}>{{t}_{2}}>{{t}_{1}}\]

    B) \[{{t}_{1}}>{{t}_{2}}>{{t}_{3}}\]

    C) \[{{t}_{2}}>{{t}_{1}}={{t}_{3}}\]

    D) \[{{t}_{1}}>{{t}_{2}}>{{t}_{3}}\]

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  • question_answer24) A gas is at\[\text{2}{{\text{7}}^{\text{o}}}\text{C}\text{.}\] Its volume is doubled keeping pressure constant, then final temperature is:

    A) \[600{{\,}^{o}}C\]

    B) 327 K

    C) \[327{{\,}^{o}}C\]

    D) \[~273{{\,}^{o}}C\]

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  • question_answer25) If the volume of gas is changed from \[{{V}_{1}}\]to \[{{V}_{2}}\]isothermally, then work done is:

    A) \[RT\,\ln \frac{{{V}_{1}}}{{{V}_{2}}}\]

    B) \[RT\,\ln \frac{{{V}_{2}}}{{{V}_{1}}}\]

    C) \[R({{T}_{2}}-{{T}_{1}})ln\frac{{{V}_{2}}}{{{V}_{1}}}\]

    D) \[R({{V}_{2}}-{{V}_{1}})ln\frac{{{T}_{2}}}{{{T}_{1}}}\]

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  • question_answer26) If energy is supplied to a gas isochorically, increase in internal energy is \[dU\]then:

    A) \[dQ=dU+dW\]

    B) \[dQ=dU-dW\]

    C) \[dQ=dU\]

    D) \[dQ=-dU\]

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  • question_answer27) A nucleus \[_{\text{Z}}^{\text{A}}\text{X}\]emits one \[\alpha \]and \[2\beta \] particles, then final nucleus is:

    A) \[Y_{Z}^{A}-2\]

    B) \[Y_{Z-4}^{A-4}\]

    C) \[Y_{Z}^{A-4}\]

    D) \[X_{Z}^{A}\]

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  • question_answer28) The fringe width for red light is approximately how many times that for violet light in Youngs slit experiment?

    A) 2 times

    B) 3 times

    C) Equal

    D) 1/2 times

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  • question_answer29) A person sees clearly at a distance of 100 cm, then power of lens used to see object at 40 cm is:

    A) 3D

    B) \[-3D\]

    C) \[~-1.5\text{ }D\]

    D) \[4-1.5\text{ }D\]

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  • question_answer30) The electric potential Vis given as a function of distance \[x\](metre) by \[V=(5{{x}^{2}}+10x-4)V.\]Value of electric field at \[x=1\,m\]is:

    A) \[-23\,V/m\]

    B) \[11\,\,V/m\]

    C) \[6\,V/m\]

    D) \[-20\,V/m\]

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  • question_answer31) In an image convenor tube fluorescent material is bombarded by:

    A) visible radiation

    B) electron radiation

    C) infrared radiation

    D) ultra violet radiation

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  • question_answer32) A particle executes, simple harmonic motion with a frequency\[f.\] The frequency with which its kinetic energy oscillates is:

    A) \[f/2\]

    B) \[f\]

    C) \[2f\]

    D) \[4f\]

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  • question_answer33) The work done by the centripetal force F when the body completes one rotation around the circle of radius R is:

    A) \[2\pi RF\]

    B) \[~2RF\]

    C) RF

    D) zero

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  • question_answer34) The unit mass having \[\vec{r}=8\hat{i}-4\hat{j}\]and \[\vec{v}=8\hat{i}+4\hat{j}\]in its angular momentum is:

    A) 64 unit in \[-\,\hat{k}\]direction

    B) 64 unit in \[+\,\hat{k}\]direction

    C) 64 unit in \[+\,\hat{j}\]direction

    D) 64 unit in \[-\,\,\hat{i}\] direction.

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  • question_answer35) Which is nuclear fusion direction?

    A) Hydrogen to helium

    B) Uranium to krypton

    C) Hydrogen to water

    D) Neutron to proton

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  • question_answer36) If an AC produces same heat as that produced by a steady current of 4 A, then peak value of current is:

    A) 4 A

    B) 1.56 A

    C) 5.6 A

    D) 1.41 A

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  • question_answer37) In LCR circuit\[f=\frac{50}{\pi }Hz,\,V=50\,\text{volt,}\]\[\,\text{R}\,\text{=}\,\text{300}\,\Omega .\] If\[\text{L}\,\text{=}\,\text{1}\,\text{H}\]and \[C=20\,\mu C,\]then voltage across capacitor is:

    A) zero

    B) 20 V

    C) 30 V

    D) 50 V

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  • question_answer38) If two forces each of 2 N are inclined at \[\text{6}{{\text{0}}^{\text{o}}}\text{,}\] then resultant force is:

    A) 2N

    B) \[2\sqrt{5}\,N\]

    C) \[3\sqrt{2}\,N\]

    D) \[4\sqrt{2}\,N\]

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  • question_answer39) A block of mass 10 kg is placed on a rough horizontal surface whose coefficient of friction is 0.5. If a horizontal force of 100 N is applied on it, then acceleration of block will be:

    A) \[10\text{ }m/{{s}^{2}}\]

    B) \[5\,m/{{s}^{2}}\]

    C) \[15\text{ }m/{{s}^{2}}\]

    D) \[~0.5\,m/{{s}^{2}}\]

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  • question_answer40) The potential difference across an instrument in an AC circuit of frequency \[f\] is V and the current through it is \[I\] such, that \[V=5\cos \,2\pi ft\,\text{volt}\] and\[I=2\sin 2\pi ft\] amp. The power dissipated in the instrument is:

    A) zero

    B) 10 W

    C) 5 W

    D) 2.5 W

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  • question_answer41) If ratio of intensities of interfering waves is 16: 9, then ratio of maximum to minimum intensity is:

    A) 49 : 1

    B) 225 : 81

    C) 3:1

    D) 9:1

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  • question_answer42) The power of a lens, a short sighted person uses is -2 D. Find the maximum distance of an object which he can see without spectacles:

    A) 25 cm

    B) 50 cm

    C) 100 cm

    D) 10 cm

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  • question_answer43) The first overtone frequency of a wave on string of length 2 m is 250 Hz. Then, its velocity is:

    A) 1000 m/s

    B) 25 m/s

    C) 500 m/s

    D) 10 m/s

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  • question_answer44) What is the current flowing in arm AB?

    A) \[\frac{35}{4}A\]

    B) \[\frac{13}{7}A\]

    C) \[\frac{5}{7}A\]

    D) \[\frac{7}{5}A\]

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  • question_answer45) A projectile is fired making an angle \[2\theta \]with horizontal with velocity 4 m/s. At any instant it makes an angle \[\theta ,\] then its velocity is:

    A) \[4\cos \theta \]

    B) \[4(2cos\theta -sec\theta )\]

    C) \[(2cos\theta +4sec\theta )\]

    D) \[4(sec\theta +cos\theta )\]

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  • question_answer46) If path difference becomes \[(2n-1)\frac{\lambda }{2}\]then: 2>>

    A) white fringe is formed

    B) bright fringe is formed

    C) uniform illumination is obtained

    D) dark fringe is formed

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  • question_answer47) If the intensity of fringe at wavelength\[\lambda \] is \[K,\]then its intensity at wavelength\[\lambda /2\]is:

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

    B) \[K\]

    C) zero

    D) \[\sqrt{2}K\]

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  • question_answer48) A positively charged particle moving with velocity v enters a region of space having a uniform magnetic field B. The particle will experience the large deflecting force, when the angle between v and B is:

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

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

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

    D) \[{{180}^{o}}\]

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  • question_answer49) In a step-up transformer the turn ratio is 1:8. A lead accumulator \[(emf=6V)\] is connected across the primary coil of the .transformer. The voltage across the secondary coil is:

    A) 48 V

    B) 0.75 V

    C) 14 V

    D) zero

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  • question_answer50) The mass of a lift is 500 kg. When it ascends with an acceleration of \[\text{2}\,\text{m/}{{\text{s}}^{\text{2}}}\text{,}\] the tension in the cable will be: \[\text{(g}\,\text{=}\,\text{10}\,\text{m/}{{\text{s}}^{2}}\text{)}\]

    A) 6000 N

    B) 5000 N

    C) 4000 N

    D) 1000 N

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  • question_answer51) A water molecule can form maximum number of H-bond which is equal to:

    A) 1

    B) 2

    C) 3

    D) 4

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  • question_answer52) Bond angle in \[{{\text{H}}_{\text{2}}}\text{O}\]is:

    A) \[{{109}^{o}}28\]

    B) \[{{107}^{o}}10\,\]

    C) \[104.5{{\,}^{o}}\]

    D) \[{{92}^{o}}\]

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  • question_answer53) Calamine is:

    A) \[ZnS\]

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

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

    D) \[MgC{{O}_{3}}\]

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  • question_answer54) Which is extremely stable?

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

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

    C) \[NB{{r}_{3}}\]

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

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  • question_answer55) \[\text{C}{{\text{H}}_{\text{3}}}\text{COCl}\]does not react with:

    A) diethyl ether

    B) phenol

    C) ethanol

    D) aniline

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  • question_answer56) In \[\text{S}{{\text{O}}_{\text{2}}}\]hybridisation is:

    A) \[sp\]

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

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

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

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  • question_answer57) Lowest melting point chloride is:

    A) \[\text{LiCl}\]

    B) \[\text{NaCl}\]

    C) \[\text{KCl}\]

    D) \[\text{CsCl}\]

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  • question_answer58) Half-life of a substance is 6 min. If its initial amount is 32 g, then amount present after 18 minis:

    A) 4g

    B) 8g

    C) 16g

    D) 2g

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  • question_answer59) If calcium acetate and calcium formate react, then product formed is:

    A) acetaldehyde

    B) acetic acid

    C) formic acid

    D) ethyl formate

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  • question_answer60) Reduction with aluminium isopropoxide in excess of isopropyl alcohol is called Meerwein Pondorf Verley reduction (MPV). What will be the firal product when cyclohex-2-enone is selectively reduced in MPV reaction?

    A) Cyclohexanol

    B) Cyclohex-2-enol

    C) Cyclohexanone

    D) Benzene

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  • question_answer61) If pH of a solution is 4, then \[{{\text{H}}^{\text{+}}}\]is:

    A) \[\text{1}{{\text{0}}^{4}}\]

    B) \[\text{1}{{\text{0}}^{10}}\]

    C) \[{{10}^{-4}}\]

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

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  • question_answer62) When sodium nitrate is heated above \[\text{600}{{\,}^{\text{o}}}\text{C,}\]then:

    A) only \[\text{N}{{\text{a}}_{\text{2}}}\text{O}\]is formed

    B) only \[{{\text{N}}_{2}}\]is formed

    C) only\[{{\text{O}}_{\text{2}}}\] is formed

    D) all are formed

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  • question_answer63) Which of the following produces \[\text{C}{{\text{l}}_{2}}\]gas?

    A) \[\text{NaCl}\,\text{+}\,\text{HN}{{\text{O}}_{\text{3}}}\]

    B) \[\text{Mn}{{\text{O}}_{\text{2}}}\text{+}\,\text{HCl}\]

    C) \[\text{KMn}{{\text{O}}_{\text{4}}}\text{+}\,\text{HCl}\]

    D) \[\text{HCl}\,\text{+}\,\text{HN}{{\text{O}}_{\text{3}}}\]

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  • question_answer64) Which is correctly arranged as increasing size?

    A) \[F<O<C<Cl<Br\]

    B) \[C<O<F<Cl<Br\]

    C) \[Cl<Br<F<C<O\]

    D) \[O<F<C<Cl<Br\]

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  • question_answer65) \[\text{N}{{\text{H}}_{\text{3}}}\]is absorbed by:

    A) ozone

    B) \[\text{CaO}\]

    C) pyrargallol

    D) \[\text{CaC}{{\text{l}}_{\text{2}}}\]

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  • question_answer66) \[\text{1}\text{.25}\,\text{g}\,\text{N}{{\text{H}}_{\text{3}}}\]contains how many atoms?

    A) \[{{10}^{23}}\]

    B) \[2\times {{10}^{23}}\]

    C) \[6\times {{10}^{13}}\]

    D) \[4\times {{10}^{23}}\]

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  • question_answer67) Which of the following has smallest bond angle?

    A) Ethane

    B) Ethene

    C) Ethyne

    D) Ethanol

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  • question_answer68) Chloroform in air is oxidised to:

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

    B) dichloromethane

    C) phosgene

    D) oxygen

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  • question_answer69) Gypsum is:

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

    B) \[CaS{{O}_{4}}.\frac{1}{2}{{H}_{2}}O\]

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

    D) \[CuS{{O}_{4}}\]

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  • question_answer70) Which is not soluble in water?

    A) \[PbS{{O}_{4}}\]

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

    C) \[Bi{{(S{{O}_{4}})}_{2}}\]

    D) \[CuS{{O}_{4}}\]

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  • question_answer71) Which of the following is colour red?

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

    B) \[CuF\]

    C) \[Zn{{F}_{2}}\]

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

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  • question_answer72) How many unpaired electrons are present in \[[Cr{{(NH)}_{3}}]B{{r}_{3}}\]

    A) 1

    B) 2

    C) 3

    D) 4

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  • question_answer73) \[S+\frac{3}{2}{{O}_{2}}\xrightarrow{{}}S{{O}_{3}}\,\Delta H=y,\] then heat of formation of \[\text{S}{{\text{O}}_{\text{2}}}\]is:

    A) \[~2x-y\]

    B) \[~2x+y\]

    C) \[~x+y\]

    D) \[\frac{2x-y}{2}\]

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  • question_answer74) Reagent (catalyst) used in Friedel-Crafts alkylation reaction is:

    A) \[AlC{{l}_{3}}\]

    B) \[\text{anhyd}\text{.}\,\,\text{AlC}{{\text{l}}_{\text{3}}}\]

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

    D) \[He\]

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  • question_answer75) Catalyst used in making\[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\] in contact process is:

    A) \[{{\text{V}}_{\text{2}}}{{\text{O}}_{\text{5}}}\]

    B) \[F{{e}_{2}}{{O}_{3}}\]

    C) \[C{{r}_{2}}{{O}_{3}}\]

    D) \[Cr{{O}_{3}}\]

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  • question_answer76) When acetamide is reacted with \[\text{NaOBr,}\]then product formed is:

    A) ethanamine

    B) methanamine

    C) methanamide

    D) ethanenitrile

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  • question_answer77) Isocyanide is prepared by:

    A) Friedel Crafts reaction

    B) Wurtzs reaction

    C) Williamson synthesis

    D) Carbylamine reaction

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  • question_answer78) If rate of diffusion of \[\text{C}{{\text{H}}_{\text{4}}}\]is twice than that of a gas\[x,\] then its molecular mass is:

    A) 64 g

    B) 16 g

    C) 32 g

    D) 8 g

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  • question_answer79) Which one is not Lewis acid?

    A) \[Be{{F}_{2}}\]

    B) \[SnC{{l}_{4}}\]

    C) \[\text{AlC}{{\text{l}}_{\text{3}}}\]

    D) \[B{{F}_{3}}\]

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  • question_answer80) Natural gas mainly consists of:

    A) methane

    B) butane

    C) propane

    D) ethane + octane

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  • question_answer81) Phenol is treated with Zn to form:

    A) benzoic acid

    B) benzyl alcohol

    C) benzene

    D) benzoquinone

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  • question_answer82) Which one is isoelectronic with\[\text{CO}\]?

    A) \[N_{2}^{-}\]

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

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

    D) \[NO\]

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  • question_answer83) How much volume of \[\text{1M}\,{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]is required to neutralize 20 mL of\[\text{1M}\,\text{NaOH}\]?

    A) 10 mL

    B) 20 mL

    C) 5mL

    D) 15 mL

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  • question_answer84) Fentons reagent is:

    A) \[\text{SnC}{{\text{l}}_{\text{2}}}\text{+}\,\text{HCl}\]

    B) \[AgN{{O}_{3}}+N{{H}_{4}}OH\]

    C) \[CuS{{O}_{4}}+NaOH\]

    D) \[FeS{{O}_{4}}+{{H}_{2}}{{O}_{2}}\]

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  • question_answer85) \[C{{u}^{2}}+Ag\xrightarrow{{}}Cu+A{{g}^{+}}\]oxidation half reaction is:

    A) \[C{{u}^{2+}}\to Cu\]

    B) \[Ag\to A{{g}^{+}}\]

    C) \[Cu\to C{{u}^{2+}}\]

    D) all of these

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  • question_answer86) \[{{\text{C}}_{\text{4}}}{{\text{H}}_{\text{10}}}\text{O}\]has how many isomeric alcohols?

    A) 1

    B) 2

    C) 3

    D) 4

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  • question_answer87) IUPAC name of \[C{{H}_{3}}-C\equiv C-HC-{{(C{{H}_{3}})}_{2}}\] is:

    A) \[4-\]methyl\[-2-\]pentyne

    B) \[1,1-\] dimethyl\[-2-\]butyne

    C) \[2-\]methyl\[-4-\]pentyne

    D) \[4,4-\]dimethyl\[-2-\]butyne

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  • question_answer88) Fehling test is given by:

    A) glucose

    B) fructose

    C) sucrose

    D) all of these

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  • question_answer89) Number of isomeric primary amine of molecular formula \[{{\text{C}}_{\text{4}}}{{\text{H}}_{\text{11}}}\text{N}\]is:

    A) 1

    B) 2

    C) 3

    D) 4

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  • question_answer90) For reaction \[3X+Y{{X}_{3}}Y\] \[\Delta H=+\,ve,\] amount of \[{{X}_{3}}Y\]can be changed by:

    A) changing temperature

    B) changing pressure

    C) changing temperature, pressure,

    D) changing temperature, pressure, adding catalyst

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  • question_answer91) Which one is most ionic?

    A) \[{{P}_{2}}{{O}_{5}}\]

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

    C) \[M{{n}_{2}}{{O}_{7}}\]

    D) \[{{P}_{2}}{{O}_{3}}\]

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  • question_answer92) Which one gives \[{{I}_{2}}\] on reaction with\[KI\]?

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

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

    C) \[~PbS{{O}_{4}}\]

    D) \[~CdS{{O}_{4}}\]

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  • question_answer93) Colour of the solution When \[\text{KI}\]reacts with \[\text{B}{{\text{r}}_{2}}\] is:

    A) blue

    B) black

    C) red

    D) no change

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  • question_answer94) Finely divided iron combines with CO to give:

    A) \[Fe{{(CO)}_{5}}\]

    B) \[F{{e}_{2}}{{(CO)}_{9}}\]

    C) \[F{{e}_{3}}{{(CO)}_{12}}\]

    D) \[Fe{{(CO)}_{6}}\]

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  • question_answer95) Which of the following is pyramidal?

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

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

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

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

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  • question_answer96) Which of the following conducts electricity?

    A) Crystal\[\text{NaCl}\]

    B) Diamond

    C) Molten\[\text{KBr}\]

    D) Sulphur

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  • question_answer97) Ratio of kinetic energy of hydrogen and helium gas at \[\text{300}\,\text{K}\]is:

    A) 2 : 1

    B) 4 : 5

    C) 1 : 1

    D) 1 : 2

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  • question_answer98) Which of the following has highest energy?

    A) \[n=2,\,l=1\]

    B) \[n=3,\,l=2\]

    C) \[n=3,\,l=1\]

    D) \[n=2,\,l=0\]

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  • question_answer99) Oxidation state of phosphorus in pyrophosphoric acid is:

    A) + 5

    B) + 3

    C) + 4

    D) + 1

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  • question_answer100) If the 75% of a first order reaction is complete in 8 min, then time taken to decompose 50% of its initial amount is:

    A) 2 min

    B) 4 min

    C) 12 min

    D) 1 min

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  • question_answer101) Sequence of cytochromes is:

    A) \[cyt.\text{ }a,\text{ }b,\text{ }c,\text{ }{{a}_{3}}\]

    B) \[~cyt.\text{ }b,\text{ }c,\text{ }a,\text{ }{{a}_{3}}\]

    C) \[~cyt.\text{ }b,\text{ }a,\text{ }{{a}_{3}},c\]

    D) \[~cyt.\text{ }b,c,\,{{a}_{3}},a\]

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  • question_answer102) Cytochrome is a:

    A) Mg pyrole ring

    B) Fe porphyrin ring

    C) nucleotide

    D) alloy of nichrome

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  • question_answer103) Placentation in Brasicaceae is:

    A) parietal

    B) marginal

    C) axile

    D) basal

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  • question_answer104) Rauwolffia serpentina is used in:

    A) curing high blood pressure

    B) kideny failure

    C) eye defect

    D) diabetes

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  • question_answer105) Which one of the following is agranulocyte?

    A) Neutrophil

    B) Eosinophil

    C) Basophil

    D) Monocyte

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  • question_answer106) Who described \[{{\text{C}}_{\text{4}}}\]pathway for firsts time?

    A) Hatch and Slack

    B) Robert Hill

    C) Hans Krebs

    D) Melvin Calvin

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  • question_answer107) Who is the father of Indian Bryology?

    A) O.P. lyengar

    B) S. Kashyap

    C) E. J. Butlar

    D) R. Mishra

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  • question_answer108) Which one is absent in frog?

    A) Phrenic nerve

    B) Renal portal vein

    C) Both [a] and [b]

    D) None of these

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  • question_answer109) Poison gland in snake is located in:

    A) parietal

    B) maxilla

    C) mandible

    D) neck

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  • question_answer110) Eugene P. Odum is a:

    A) bryologist

    B) ecologist

    C) gerontologist

    D) neurologist

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  • question_answer111) Which of the following is not endocrine gland?

    A) Thyroid

    B) Adrenal

    C) Pituitary

    D) Sebaceous

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  • question_answer112) Animal protected in Kaziranga National park is:

    A) tiger

    B) lion

    C) elephant

    D) Rhinoceros

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  • question_answer113) In 125 amino acid sequence if 25 amino acid is mutated to UAA, then:

    A) a polypeptide of 124 amino acid is formed

    B) a polypeptide of 25 amino acid is formed

    C) a polypeptide of 24 amino acid is formed

    D) any of the above can be possible

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  • question_answer114) In gastrulation, which is (are) formed?

    A) endoderm

    B) mesoderm

    C) etoderm, endoderm

    D) ectoderm, mesoderm, endoderm

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  • question_answer115) In embryo sac, \[n,\text{ }2n,\text{ }3n\]conditions are found respectively in:

    A) egg, antipodal, endosperm

    B) nucleus, endosperm, egg .

    C) antipodal, zygote, endosperm

    D) endosperm; nucleus, egg

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  • question_answer116) Which of the following set is green-house gases?

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

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

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

    D) \[C{{O}_{2}},CFC,{{N}_{2}},{{O}_{2}}\]

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  • question_answer117) Krebs cycle takes place in:

    A) mitochondrial matrix

    B) cytoplasm

    C) lysosome

    D) nucleus

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  • question_answer118) Which of the following is monogenetic parasite?

    A) Entamoeba histolytica

    B) Taenia solium

    C) Wuchereria bancroftii

    D) Plasmodium vivax

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  • question_answer119) Stratified squammous epithelium is found in :

    A) pharynx

    B) trachea

    C) -ileum

    D) Bowmans capsule

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  • question_answer120) Which one is polymer?

    A) Sucrose

    B) Glycogen

    C) Fructose

    D) Lactose

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  • question_answer121) In cell division, spindle fibres are made up of protein:

    A) myoglobin

    B) tubulin

    C) albumin

    D) myosin

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  • question_answer122) In photosynthesis, for fixation of one mole of glucose number of ATP and \[\text{NADP}{{\text{H}}_{\text{2}}}\]required is:

    A) 12 and 18

    B) 18 and 12

    C) 6 and 12

    D) 18 and 18

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  • question_answer123) Bulk of histone proteins synthesized in:

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

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

    C) S-phase

    D) \[{{G}_{0}}-\]phase

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  • question_answer124) Species which is in danger of extinction is:

    A) endangered

    B) vulnerable

    C) rare

    D) critically endangered

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  • question_answer125) Mollusca is:

    A) triploblastic, acoeiomate

    B) triploblastic, coelomate

    C) dibloblastic, acoeiomate

    D) diploblastic, coelomate

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  • question_answer126) Cyathium and hypanthodium inflorescence are related in having:

    A) nectar glands

    B) unisexual flower

    C) both [a] and [b]

    D) none of these

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  • question_answer127) Exarch and polyarch condition found in:

    A) monocot stem

    B) dicot stem

    C) monocot root

    D) dicot root

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  • question_answer128) Which of the following enzymes helps in crossing plasma membrane?

    A) protease

    B) pepsin

    C) dehydrpgenase

    D) permease

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  • question_answer129) \[\text{N}{{\text{H}}_{\text{3}}}\]in Amoeba is excreted by:

    A) food vacuole

    B) contractile vacuole

    C) plasma membrane

    D) all of the above

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  • question_answer130) Antiparallel strands in DNA is due to:

    A) disulphite linkage

    B) hydrogen bond

    C) phosphodiester bond

    D) glycosidic bond

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  • question_answer131) Choose the incorrect match:

    A) nucleus-RNA

    B) lysosome-protein synthesis

    C) mitochondria-respiration

    D) cytoskeleton-microtubules

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  • question_answer132) More advancement in genetic engineering is due to:

    A) restriction endonuclease

    B) reverse transcriptase

    C) protease

    D) zymase

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  • question_answer133) Rough endoplasmic reticulum is associated with:

    A) fat synthesis

    B) steroid synthesis

    C) protein synthesis

    D) all of these

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  • question_answer134) In lung, maximum gaseous exchange is due to:

    A) simple diffusion

    B) active transport

    C) passive transport

    D) fascilitated diffusion

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  • question_answer135) Resolving power of electron microscope is:

    A) \[\text{1}\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[\text{10}\overset{\text{o}}{\mathop{\text{A}}}\,\]

    C) \[\text{100}\overset{\text{o}}{\mathop{\text{A}}}\,\]

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

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  • question_answer136) The female children of haemophilic father and carrier mother:

    A) all haemophilic

    B) half haemophilic, half carrier

    C) all normal

    D) all carrier

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  • question_answer137) Number of Barr bodies in XXXXY is:

    A) 1

    B) 2

    C) 3

    D) 4

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  • question_answer138) Natural system of classification is given by:

    A) Benthem and Hooker

    B) Carolus Linnaeus

    C) Charles Darwin

    D) Engler and Pranti

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  • question_answer139) Leaves of grasses roll and unroll due to :

    A) hormonal change

    B) change in temperature

    C) change in turgor pressure

    D) presence of bulliform apparatus

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  • question_answer140) Stomata open and close due to:

    A) turgor pressure change

    B) hormonal change

    C) temperature change

    D) all of the above

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  • question_answer141) Haploid structure of Funaria is:

    A) protonema

    B) calyptra

    C) apophysis

    D) operculum

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  • question_answer142) Fruiting body of Penicillium is:

    A) cleistothecium

    B) pycniophysis

    C) sterigmata

    D) none of these

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  • question_answer143) Sperm of Cycas is:

    A) multiflagellated and very large

    B) small and biflagellated

    C) multiflagellated and small

    D) large and biflagellated

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  • question_answer144) Ecosystem has:

    A) plant and animal

    B) air and \[{{\text{H}}_{\text{2}}}\text{O}\]

    C) soil and light

    D) biotic and abiotic component

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  • question_answer145) For nitrogen fixation, pigment useful is :

    A) nitrogenase

    B) haemoglobin

    C) myoglobin

    D) leghaemoglobin

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  • question_answer146) Sal and teak are found in

    A) tropical rain forest

    B) tropical deciduous forest

    C) temperate board leaf forest

    D) temperate needle leaf forest

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  • question_answer147) In plasmolysed cell, the space between nucleus and plasma membrane is occupied by:

    A) hypotonic solution

    B) hypertonic solution

    C) isotonic solution

    D) air

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  • question_answer148) During oogenis, the small structure separated from egg is:

    A) polar bodies

    B) secondary endosperm

    C) herring bodies

    D) Hela cells

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  • question_answer149) Structural and functional unit of kidney is:

    A) neuron

    B) nephron

    C) lungs

    D) Schwanns cells

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  • question_answer150) Which hexaploid wheat is used to make bread?

    A) Triticum turgidum

    B) Triticum durum

    C) Triticum monococcum

    D) Triticum aestivum

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