Solved papers for JCECE Medical JCECE Medical Solved Paper-2003

done JCECE Medical Solved Paper-2003

  • question_answer1) The internal resistance of a cell is the resistance of:

    A) electrolyte used in cell

    B) electrodes of the cell

    C) material used in cell

    D) vessel of the cell

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  • question_answer2) A device for generating an alternating current of a desired frequency is known as:

    A) an oscillator

    B) an amplifier

    C) a rectifier

    D) none of these

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  • question_answer3) The angle of minimum deviation for a thin prism with respect to air and when dipped in water will be:\[\left( {{\,}_{a}}{{\mu }_{g}}=\frac{3}{2}{{,}_{a}}{{\mu }_{w}}=\frac{4}{3} \right)\]

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

    B) \[\frac{1}{8}\]

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

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

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  • question_answer4) Escape velocity of a body when projected from the earths surface is 11.2 km/s. If it is projected at an angle of \[\text{5}{{\text{0}}^{\text{o}}}\] from the horizontal, the escape velocity is:

    A) 11.8 km/s

    B) 16.5 km/s

    C) 11.2 km/s

    D) 14.5 km/s.

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  • question_answer5) A diamagnetic substance is brought near a strong magnet, then it is:

    A) attracted by a magnet

    B) repelled by a magnet

    C) repelled by north pole and attracted by south pole

    D) attracted by north pole and repelled by south pole

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  • question_answer6) The ratio of intensities of two waves is 9:16. If they interfere, the ratio of maximum to minimum intensity will be:

    A) 4 : 1

    B) 1 : 25

    C) 1 : 3

    D) 49 : 1

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  • question_answer7) The sun emits a light with maximum wavelength 510 nm while another star emits a light with maximum wavelength of 350 nm. The ratio of surface temperature of sun and the star will be:

    A) 0.69

    B) 0.46

    C) 1.45

    D) 2.1

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  • question_answer8) If the equation of motion of standing wave is \[y=0.3\,\sin (314\,t-1.57x),\]then the velocity of standing wave is:

    A) 400 unit

    B) 350 unit

    C) 209 unit

    D) 200 unit

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  • question_answer9) For driving current of 2 A for 6 min in a circuit, 1000 J of work is to be done. The emf of the source in the circuit is:

    A) 2.03 V

    B) 2.54 V

    C) 1:25 V

    D) 1.39 V

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  • question_answer10) The moment of momentum for an electron in second orbit of hydrogen atom as per Bohrs model is:

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

    B) \[2\pi h\]

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

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

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  • question_answer11) The latent heat of vaporisation of water is \[\text{2250}\,\text{J/kg}\text{.}\]If the work done in the process of vaporisation of 1 kg is 168 J, then increase in internal energy will be:

    A) 1904 J

    B) 1984 J

    C) 3202 J

    D) 2082 J

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  • question_answer12) Huygens wave theory ,of light could not explain:

    A) photoelectric effect

    B) interference

    C) diffraction

    D) polarization

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  • question_answer13) In a triode valve, when the plate potential is increased from 200 V to 220 V and grid potential is decreased from \[-0.5\text{ V}\]to \[-\text{ 1}\text{.3 V,}\] there is 1 no change in plate current. The amplification factor of the triode is:

    A) 25

    B) 14

    C) 11

    D) 73

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  • question_answer14) A bar magnet of magnetic moment \[\text{220 A}{{\text{m}}^{\text{2}}}\]is suspended in a magnetic field of intensity 0.25 N/Am. The couple required to deflect it through \[\text{3}{{\text{0}}^{\text{o}}}\]is:

    A) 27.5 Nm

    B) 20.25 Nm

    C) 47.63 Nm

    D) 12 Nm

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  • question_answer15) A plano-convex lens has refractive index 1.5 and radius of curvature 50 cm. What is focal length of lens?

    A) 100 cm

    B) 200 cm

    C) 178 cm

    D) 150 cm

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  • question_answer16) A source and an observer move away from each other, with a velocity of 20 m/s. If the apparent frequency heard by the observer is 1840 Hz, the actual frequency of the source is: (Velocity of sound in air = 340 m/s):

    A) 2486 Hz

    B) 2070 Hz

    C) 2134 Hz

    D) 1872 Hz

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  • question_answer17) The speed of wave in a medium is 650 m/s. If 3500 waves are passing through a point in the medium in 1.67 min, then its wavelength will be:

    A) 16.25m

    B) 14.29m

    C) 18.57m

    D) 20.50m

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  • question_answer18) The body is projected at such angle that the horizontal range is three times the greatest height. The angle of projection is:

    A) \[{{43}^{o}}8\]

    B) \[{{25}^{o}}8\]

    C) \[{{33}^{o}}7\]

    D) \[{{53}^{o}}1\]

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  • question_answer19) On the horizontal surface of a truck, a block of mass 1 kg is placed \[(\mu =0.6)\] and truck is moving with acceleration \[\text{5}\,\text{m/}{{\text{s}}^{\text{2}}}\text{.}\] The frictional force acting on the block will be:\[(g=10\,m/{{s}^{2}})\]

    A) 6 N

    B) 5.88 N

    C) 7 N

    D) 9 N

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  • question_answer20) Calculate the work done when a force \[\vec{F}=2\hat{i}+3\hat{j}-5\hat{k}\]units acts on a body producing a displacement\[\vec{s}=2\hat{i}+4\hat{j}+3\hat{k}\] units:

    A) 1 unit

    B) 20 unit

    C) 5 unit

    D) zero

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  • question_answer21) The efficiency of Car not engine is 50% and temperature of sink is 500 K. If the temperature of source is kept constant and its efficiency is to be raised to 60%, then the required temperature of the sink will be:

    A) 600 K

    B) 400 K

    C) 500 K

    D) 100 K

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  • question_answer22) What happens to the internal energy of a gas during isothermal expansion?

    A) Internal energy will decrease

    B) Internal energy: will increase

    C) Internal energy will become zero

    D) Internal energy will remain same

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  • question_answer23) 100 g ice is mixed with 100 g of water at \[100{{\,}^{o}}C.\] What will be the final temperature of the mixture?

    A) \[~10{{\,}^{o}}C\]

    B) \[~27{{\,}^{o}}C\]

    C) \[~14{{\,}^{o}}C\]

    D) none of these

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  • question_answer24) Black hole consists of:

    A) ozone layer

    B) super dense planetary material

    C) upper surface of atmosphere

    D) none of the above

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  • question_answer25) Three resistors \[2\Omega ,\,3\Omega \] and \[4\Omega \] are connected as shown in the given diagram. The equivalent resistance will be:

    A) \[\frac{12}{13}\]

    B) \[\frac{11}{10}\]

    C) 2

    D) \[\frac{10}{11}\]

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  • question_answer26) If an electron jumps from first orbit to third orbit of hydrogen atom it will:

    A) not loose energy

    B) release energy

    C) absorb energy

    D) not gain energy

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  • question_answer27) A body of mass 10 kg moving with velocity 10 m/s collides with a stationary body of mass 5 kg. After collision both bodies stick to each other, velocity of the joint body after collision is:

    A) \[\frac{3}{10}\,m/s\]

    B) \[20\,m/s\]

    C) \[\frac{20}{3}\,m/s\]

    D) \[15\,m/s\]

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  • question_answer28) If a body starts from rest and travels 110 cm in the 9th second, then acceleration of the body is:

    A) \[0.13\text{ }m/{{s}^{2}}\]

    B) \[~0.16\text{ }m/{{s}^{2}}\]

    C) \[~0.18\text{ m/}{{\text{s}}^{2}}\]

    D) \[~0.34\text{ }m/{{s}^{2}}\]

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  • question_answer29) If the momentum of a particle is doubled, then its de-Broglie wavelength will:

    A) become four times

    B) become half

    C) become two times

    D) remain unchanged

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  • question_answer30) Dimensions of torque are:

    A) \[[{{M}^{2}}{{L}^{2}}{{T}^{-2}}]\]

    B) \[[M{{L}^{2}}{{T}^{-2}}]\]

    C) \[[M{{L}^{2}}{{T}^{-1}}]\]

    D) \[[M{{L}^{0}}{{T}^{-2}}]\]

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  • question_answer31) Two vectors have magnitudes 3 and 5. If angle between them is \[\text{6}{{\text{0}}^{\text{o}}}\text{,}\] then the dot product of two vectors will be:

    A) 7.5

    B) 6.5

    C) 8.4

    D) 7.9

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  • question_answer32) The kinetic energy of 1 g molecule of a gas, at normal temperature and pressure is:\[\text{(R}\,\text{=}\,\text{8}\text{.321}\,\text{J/mol-K)}\]

    A) \[1.2\times {{10}^{2}}J\]

    B) \[3.4\times {{10}^{3}}J\]

    C) \[1.66\times {{10}^{4}}J\]

    D) \[2.97\times {{10}^{4}}J\]

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  • question_answer33) If the coefficient of cubical expansion is \[x\]times of the coefficient of superficial expansion, then value of \[x\] is:

    A) 2.7

    B) 2

    C) 1.5

    D) 9.5

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  • question_answer34) X-ray will not show the phenomenon of:

    A) interference

    B) deflection by electric field

    C) diffraction

    D) polarization

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  • question_answer35) Bernoullis theorem is based on:

    A) conservation of mass, energy and momentum

    B) conservation of mass

    C) conservation of momentum

    D) conservation of energy

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  • question_answer36) In bringing an electron towards another electron, the electrostatic potential energy of the system:

    A) decreases

    B) increases

    C) remains same

    D) becomes zero

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  • question_answer37) The half-life of radium is 1600 yr. What is the mean life and disintegration constant of radium?

    A) \[2309\,yr,\,\frac{1}{2309}/yr\,\]

    B) \[3309\,yr,\,\frac{1}{3309}/yr\,\]

    C) \[1309\,yr,\,\frac{1}{1309}/yr\,\]

    D) none of the above

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  • question_answer38) Energy obtained when 1 mg mass is completely converted in to energy will be:

    A) \[9\times {{10}^{13}}\,J\]

    B) \[3\times {{10}^{8}}\,J\]

    C) \[3\times {{10}^{15}}\,J\]

    D) \[9\times {{10}^{15}}\,J\]

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  • question_answer39) A ray of light is incident on a surface of a plate of glass of refractive index 1.5 at polarising angle. The angle of refraction of the ray will be:

    A) \[{{53.7}^{o}}\]

    B) \[~{{43.7}^{o}}\]

    C) \[{{33.7}^{o}}\]

    D) none of these

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  • question_answer40) A closed organ pipe and an open organ pipe are tuned to the same fundamental frequency. The ratio of their lengths is:

    A) 1 : 2

    B) 4 : 1

    C) 1 : 4

    D) 2 : 1

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  • question_answer41) A particle is moving along a circular path of radius 5m with uniform speed 5 m/s. What will be the average acceleration -when the particle completes half revolution?

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

    B) \[10\,m/{{s}^{2}}\]

    C) \[10\pi \,m/{{s}^{2}}\]

    D) zero

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  • question_answer42) A body of mass m is attached between two springs of force constants \[{{k}_{1}}\]and \[{{k}_{2}}\]as shown in figure. The other ends of the springs are fixed to firm supports. The frequency of the oscillation is:

    A) \[n=\frac{1}{2\pi }\sqrt{\frac{{{k}_{1}}-{{k}_{2}}}{m}}\]

    B) \[n=\frac{1}{2\pi }\sqrt{\frac{{{k}_{1}}{{k}_{2}}}{m}}\]

    C) \[n=\frac{1}{2\pi }\sqrt{\frac{{{k}_{1}}+{{k}_{2}}}{m}}\]

    D) none of the above

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  • question_answer43) In a p-type semiconductor, germanium is doped with:

    A) boron

    B) gallium

    C) aluminium

    D) all of these

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  • question_answer44) In a full wave rectifier circuit operating from 50 Hz mains frequency, what is the fundamental frequency in the ripple?

    A) \[50\,Hz\]

    B) \[100\,Hz\]

    C) \[25\,Hz\]

    D) \[70\,Hz\]

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  • question_answer45) An ideal gas at \[27{{\,}^{o}}C\]is compressed adiabatically to \[\frac{8}{27}\] of its original volume. The rise in temperature will be \[\left( \gamma =\frac{5}{3} \right):\]

    A) \[~480{{\,}^{o}}C\]

    B) \[~275{{\,}^{o}}C\]

    C) \[~450{{\,}^{o}}C\]

    D) \[~375{{\,}^{o}}C\]

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  • question_answer46) When you make ice cubes, entropy of water:

    A) does not change

    B) increases

    C) decreases

    D) may either increase or decrease depending on the process used

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  • question_answer47) The focal length of the objective lens and eye-piece of an astronomical telescope are 2m and 0.05 m. Find the length of the telescope.

    A) 2.05 m

    B) 1.16 m

    C) 1.05 m

    D) 2.9 m

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  • question_answer48) Two identical batteries, each of emf 2 V and internal resistance \[1\,\Omega \]pass a current through external resistance \[R=0.5\,\Omega .\]The maximum power that can be developed across R using these batteries is:

    A) 3.2W

    B) 8.2W

    C) 4 W

    D) 2 W

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  • question_answer49) At what height from the earths surface, the acceleration due to gravity will be half the value of g at surface? (R= 6400 km)

    A) 6400 km

    B) 8200 km

    C) 4800 km

    D) 1600 km

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  • question_answer50) In a semiconducting material the mobilities of electrons and holes are \[{{\mu }_{e}}\]and \[{{\mu }_{h}}\] respectively which of the following is true?

    A) \[{{\mu }_{e}}>{{\mu }_{h}}\]

    B) \[{{\mu }_{e}}<{{\mu }_{h}}\]

    C) \[{{\mu }_{e}}={{\mu }_{h}}\]

    D) \[{{\mu }_{e}}<0,\,{{\mu }_{h}}>0\]

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  • question_answer51) Tyndall effect is shown by:

    A) solution

    B) precipitate

    C) sol

    D) none of these

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  • question_answer52) In reaction, \[MnO_{4}^{-}+{{H}^{+}}+{{C}_{2}}O_{4}^{2-}\xrightarrow{{}}M{{n}^{2+}}\] \[+\,{{H}_{2}}O+C{{O}_{2}}\] What is happening?

    A) Reduction of Mn

    B) Reduction of \[{{\text{C}}_{\text{2}}}\text{O}_{4}^{2-}\]

    C) Oxidation of Mn

    D) None of these

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  • question_answer53) In which of the following ionic bond is present?

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

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

    C) \[HCl\]

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

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  • question_answer54) Deficiency of vitamin E causes:

    A) scurvy

    B) beri-beri

    C) sterility

    D) xerophthalmia

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  • question_answer55) The reaction of Lucas reagent is fast with:

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

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

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

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

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  • question_answer56) IUPAC name of the compound is: \[H-\overset{\text{O}}{\mathop{\overset{||}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{2}}-COOH\]

    A) 3-oxo-butanoic acid

    B) 4-oxo-propanoic acid

    C) 3-formyl-propanoic acid

    D) none of the above

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  • question_answer57) Tollens reagent is:

    A) alkaline \[\text{CuS}{{\text{O}}_{\text{4}}}\]solution

    B) ammoniacal cuproxide solution

    C) aqueous solution of sodium cupritartarate

    D) ammoniacal \[\text{AgN}{{\text{O}}_{\text{3}}}\]solution

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  • question_answer58) Epsom salt is:

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

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

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

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

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  • question_answer59) Which of the following carbonate decompose most easily on heating?

    A) \[R{{b}_{2}}C{{O}_{3}}\]

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

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

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

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  • question_answer60) In an isothermal expansion of an ideal gas:

    A) \[W=0\]

    B) \[\Delta E=0\]

    C) \[q=0\]

    D) \[\Delta V=0\]

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  • question_answer61) The degree of hydrolysis of \[\text{0}\text{.01 M N}{{\text{H}}_{\text{4}}}\text{C1}\]is:\[({{K}_{h}}=2.5\times {{10}^{-9}})\]

    A) \[5\times {{10}^{-5}}\]

    B) \[5\times {{10}^{-4}}\]

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

    D) \[5\times {{10}^{-7}}\]

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  • question_answer62) The number of gram equivalent of \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]in 1000 mL 3M solution, is:

    A) 3

    B) 6

    C) 4

    D) 1.5

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  • question_answer63) The radioactive isotope used in cancer therapy, is

    A) \[{{1}^{128}}\]

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

    C) \[C{{o}^{59}}\]

    D) \[{{P}^{32}}\]

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  • question_answer64) The expression of angular momentum of an electron in a Bohrs orbit is:

    A) \[\frac{n}{3}\frac{h}{\pi }\]

    B) \[\frac{n}{2}\frac{h}{\pi }\]

    C) \[\frac{h}{4\pi }\]

    D) \[\sqrt{l(l+1)}.\frac{h}{2\pi }\]

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  • question_answer65) Which of the following is called Hofmanns bromamide reaction?

    A) \[C{{H}_{3}}CN+2{{H}_{2}}O\xrightarrow{{}}C{{H}_{3}}COO+N{{H}_{3}}\]

    B) \[C{{H}_{3}}CN+4H\xrightarrow{Na/EtOH}C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}\]

    C) \[C{{H}_{3}}CON{{H}_{2}}\xrightarrow{B{{r}_{2}}/NaOH}C{{H}_{3}}N{{H}_{2}}\]

    D) \[C{{H}_{2}}COCl+C{{H}_{3}}OH\xrightarrow{{}}\]\[C{{H}_{3}}COOC{{H}_{3}}+HCl\]

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  • question_answer66) Which one among the following contains a phenolic-OH group?

    A) Oxalic acid

    B) Formic acid

    C) Picric acid

    D) Citric acid

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  • question_answer67) In the reaction, product X is: \[C{{H}_{3}}-C\equiv CH+{{H}_{2}}O\xrightarrow{{{H}^{+}}/H{{g}^{2+}}}X\]

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

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

    C) \[C{{H}_{3}}-C(OH)=CHOH\]

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

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  • question_answer68) Which is an amphoteric oxide?

    A) \[MgO\]

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

    C) \[A{{l}_{2}}{{O}_{3}}\]

    D) \[CuO\]

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  • question_answer69) The oxidation number of S in \[{{\text{H}}_{\text{2}}}{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{8}}}\]is:

    A) \[+\,6\]

    B) \[-\,6\]

    C) \[+\,\,4\]

    D) \[+\,\,8\]

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  • question_answer70) Bleaching powder is obtained by treating chlorine with:

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

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

    C) \[CaO\]

    D) none of these

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  • question_answer71) For reaction, \[PC{{l}_{3}}(g)+C{{l}_{2}}(g)PC{{l}_{5}}(g)\] the value of \[{{K}_{c}}\]at \[\text{250}{{\,}^{\text{o}}}\text{C}\]is 26. At the same temperature, the value of \[{{K}_{p}}\]is:

    A) 0.46

    B) 0.61

    C) 0.95

    D) 0.73

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  • question_answer72) The volume of a gas is reduced to 1.0 L at \[\text{25}{{\,}^{\text{o}}}\text{C}\]and 1 atm. pressure. Its pressure at \[\text{35}{{\,}^{\text{o}}}\text{C}\]would be:

    A) 0.96 atm

    B) 1.03 atm

    C) 2.04 atm

    D) 3.08 atm

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  • question_answer73) The strongest acid among the following is:

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

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

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

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

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  • question_answer74) The compressibility factor for an ideal gas is:

    A) \[<1\]

    B) \[=1\]

    C) \[>1\]

    D) always 2

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  • question_answer75) The standard reduction potential of \[\text{L}{{\text{i}}^{\text{+}}}\text{,}\,\text{B}{{\text{a}}^{\text{2+}}}\text{,}\,\text{N}{{\text{a}}^{\text{+}}}\]and \[\text{M}{{\text{g}}^{2+}}\]are \[-3.05,-2.73,\]\[-2.71\]and \[-2.37\] volts respectively. Which one is the strongest reducing agent?

    A) Li

    B) Na

    C) Mg

    D) Ba

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  • question_answer76) The unit of rate constant for 1st order reaction is:

    A) \[mol\,{{L}^{-1}}{{s}^{-1}}\]

    B) \[mo{{l}^{-1}}\,L{{s}^{-1}}\]

    C) \[{{s}^{-1}}\]

    D) \[mo{{l}^{2}}{{L}^{-2}}{{s}^{-1}}\]

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  • question_answer77) In which of the following, the dipole moment is zero?

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

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

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

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

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  • question_answer78) The bond order of \[\text{O}_{\text{2}}^{\text{+}}\] is:

    A) 2

    B) 2.5

    C) 1.5

    D) 0.5

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  • question_answer79) Addition of \[\text{H}\text{gC}{{\text{l}}_{\text{2}}}\]to \[\text{SnC}{{\text{l}}_{\text{2}}}\]gives a black colour due to:

    A) oxidation of Sn

    B) reduction of \[\text{HgC}{{\text{l}}_{\text{2}}}\]

    C) formation of amalgum

    D) oxidation of Hg

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  • question_answer80) Which one of the following is a trihydric alcohol containing only secondary hydroxyl group?

    A) \[C{{H}_{3}}-\underset{OH}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}OH\]

    B) \[\underset{OH}{\mathop{\underset{|}{\mathop{C{{H}_{2}}}}\,}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{C{{H}_{2}}}}\,}}\,\]

    C) \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{3}}\]

    D) None of the above

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  • question_answer81) How many sigma and n-bonds are there in the following compound? \[C{{H}_{2}}=CH-C\equiv C-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,=C{{H}_{2}}\]

    A) \[11\sigma ,4\pi \]

    B) \[12\sigma ,3\pi \]

    C) \[14\sigma ,4\pi \]

    D) \[15\sigma ,4\pi \]

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  • question_answer82) In the nitration of benzene, the reactive species is:

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

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

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

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

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  • question_answer83) Reaction of phenol with \[\text{CC}{{\text{l}}_{\text{4}}}\]and\[\text{NaOH,}\] followed by hydrolysis is likely to give:

    A)

    B)

    C)

    D)

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  • question_answer84) In the reaction,\[{{\,}_{\text{92}}}{{\text{U}}^{\text{238}}}\xrightarrow{{}}{{\,}_{\text{82}}}\text{P}{{\text{b}}^{\text{206}}}\text{,}\] the number of\[\alpha \]and \[\beta -\]particles emitted are:

    A) \[7\alpha ,5\beta \]

    B) \[6\alpha ,4\beta \]

    C) \[4\alpha ,3\beta \]

    D) \[8\alpha ,6\beta \]

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  • question_answer85) Which is the correct Gibbs Helmholtz equation?

    A) \[\Delta H=\Delta G-T.\Delta S\]

    B) \[\Delta S=\frac{1}{T}[\Delta G-\Delta H]\]

    C) \[\Delta S=\frac{1}{T}[\Delta H-\Delta G]\]

    D) \[-\Delta G=\Delta H-T.\Delta S\]

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  • question_answer86) Vinegar is:

    A) 8-10% acetic acid,

    B) 6-10% ethyl alcohol

    C) glacial acetic acid

    D) 10% formic acid

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  • question_answer87) Decreasing order of - electron affinity of halogens is:

    A) \[Cl>Br>F>I\]

    B) \[Cl>F>Br>I\]

    C) \[Br>Cl>F>I\]

    D) \[F>Cl>Br>I\]

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  • question_answer88) Which of the following is an acidic salt?

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

    B) \[Pb(OH)Cl\]

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

    D) \[N{{a}_{2}}HP{{O}_{4}}\]

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  • question_answer89) Which one is the Lewis acid?

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

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

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

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

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  • question_answer90) 720 g water contain the number of moles:

    A) 2

    B) 190

    C) 40

    D) 55

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  • question_answer91) \[2HCHO\xrightarrow{50%\,NaOH}C{{H}_{3}}OH+HCOONa\] This reaction is called:

    A) aldol condensation

    B) Tischenko reaction

    C) Cannizaro reaction

    D) Reimer Tiemann reaction

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  • question_answer92) The geometry of the molecule having s and \[p-\]characters equal to 25% and 75% respectively, is:

    A) trigonal

    B) linear

    C) tetrahedral

    D) octahedral

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  • question_answer93) Impossible configuration is:

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

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

    C) \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}\]

    D) none of these

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  • question_answer94) The solubility product of \[\text{PbB}{{\text{r}}_{\text{2}}}\]is \[\text{10}\text{.8}\times {{10}^{-5}}.\] It is 70% dissociated in saturated solution. The solubility of salt is:

    A) \[4.18\times {{10}^{-2}}\]

    B) \[6.76\times {{10}^{-3}}\]

    C) \[3.4\times {{10}^{-4}}\]

    D) \[5.44\times {{10}^{-2}}\]

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  • question_answer95) The latent heat of vaporisation of water is \[540\,\text{cal}\,{{\text{g}}^{-1}}\]at \[\text{100}{{\,}^{\text{o}}}\text{C}\text{.}\] What will be the entropy increase when one mole of water is evaporated at \[\text{100}{{\,}^{\text{o}}}\text{C?}\]

    A) \[28\,cal\,{{K}^{-1}}\,mo{{l}^{-1}}\]

    B) \[26\,cal\,{{K}^{-1}}\,mo{{l}^{-1}}\]

    C) \[540\,cal\,{{K}^{-1}}mo{{l}^{-1}}\]

    D) \[1.82\,cal\,{{K}^{-1}}mo{{l}^{-1}}\]

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  • question_answer96) The brown ring in the test of nitrate is formed due to:

    A) \[{{[Fe{{({{H}_{2}}O)}_{5}}N{{O}_{2}}]}^{2+}}\]

    B) \[Fe{{(N{{O}_{3}})}_{3}}\]

    C) \[{{[Fe{{({{H}_{2}}O)}_{5}}NO]}^{2+}}\]

    D) \[{{[Fe({{H}_{2}}O){{(NO)}_{5}}]}^{2+}}\]

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  • question_answer97) The corrosive sublimate is:

    A) Hg

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

    C) \[H{{g}_{2}}C{{l}_{2}}\]

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

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  • question_answer98) The half-life of radium is 1580 yr. Its average life is:

    A) \[2.275\times {{10}^{3}}yr\]

    B) \[3.735\times {{10}^{2}}yr\]

    C) \[1.62\times {{10}^{3}}yr\]

    D) \[7.28\times {{10}^{2}}yr\]

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  • question_answer99) Cobalt is present in:

    A) vitamin\[{{B}_{12}}\]

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

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

    D) vitamin\[{{B}_{1}}\]

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  • question_answer100) Adipic acid and hexamethylene diamine, on polymerisation gives:

    A) nylon-6

    B) Dacron

    C) nylon-66

    D) Bakelite

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  • question_answer101) Reserpine is obtained from:

    A) Asafoetida

    B) Rauwolfia serpentine

    C) Curcuma longa

    D) Papaver somniferum

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  • question_answer102) Seed coat is derived from:

    A) pericarp

    B) epicarp

    C) integuments of ovule

    D) nucellus

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  • question_answer103) A characteristic feature of ovary of Brassica compesrris is:

    A) presence of replum

    B) axile placentation

    C) epigynous

    D) multilocular nature

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  • question_answer104) One of the characteristic of Hydra is:

    A) predation

    B) metamerism

    C) hibernation

    D) mimicry

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  • question_answer105) Which of the following pair lack the unit membrane?

    A) Nucleus and ER

    B) Mitochondria and chloroplast

    C) Ribosomes and nucleolus

    D) Golgi body and lysosome

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  • question_answer106) The number of DNA in chromosome at \[{{\text{G}}_{2}}\] stage:

    A) one

    B) two

    C) four

    D) eight

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  • question_answer107) Which of the following is a disaccharide?

    A) Glucose

    B) Fructose

    C) Sucrose

    D) Galactose

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  • question_answer108) Hydrolysis of lipid yields:

    A) fatty acids and maltose

    B) fatty acids and glycerol

    C) mannose and glycerol

    D) maltose and fatty acid

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  • question_answer109) Ctenophora shows affinities with:

    A) Cnidaria

    B) Aschelminthes

    C) Cephalopoda

    D) Turbelaria

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  • question_answer110) Exception of MendeFs law is:

    A) independent assortment

    B) linkage

    C) purity of gametes

    D) none of the above

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  • question_answer111) The position of protoxylem in leaf is:

    A) adaxial

    B) abaxial

    C) surrounded by metaxylem

    D) lateral

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  • question_answer112) In Pheretima, locomotion occurs with the help of:

    A) circular muscles

    B) longitudinal muscles and setae

    C) circular, longitudinal muscles and setae

    D) parapodia

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  • question_answer113) In Amoeba which controls the cytoplasmic osmality?

    A) nucleus

    B) ectoplasm

    C) biurets

    D) contractile vacuole

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  • question_answer114) Branched, aseptate, coenocytic mycelium present in:

    A) Aspergillus

    B) Albugo

    C) Penicillium

    D) Erysiphe

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  • question_answer115) The economically important plant of Malvaceae:

    A) Gossypium hirsutum

    B) Hibiscus cannabis

    C) Abelmoschus esculentus

    D) All of the above

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  • question_answer116) The cells without nuclei are present in:

    A) vascular cambium

    B) root hair

    C) companion cell

    D) members of sieve tube

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  • question_answer117) Which of the following is not correctly matched?

    A) Rhinencephalon- Olfactory

    B) Hypothalamus- Pituitary

    C) Cerebellum- Balance

    D) Medulla oblongata - Temperature regulation

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  • question_answer118) The scientist who was awarded Nobel Prize in 1959 for in vitro synthesis of polyribonucleotide?

    A) Mendel

    B) Calvin

    C) Khorana

    D) Ochoa

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  • question_answer119) Which of the following have sunken stomata?

    A) Nerium

    B) Mangifera

    C) Hydrilla

    D) Zeamays

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  • question_answer120) When a plasmolysed cell is placed in a hypotonic solution then water will move inside the cell. Which force causes this?

    A) DPD

    B) O.P

    C) WP

    D) None of these

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  • question_answer121) Group of two or more than two plants species is called as:

    A) plant community

    B) animal ecosystem

    C) plant ecosystem

    D) ecological niche

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  • question_answer122) Which type of kidneys are found in amphibians?

    A) Holonephric

    B) Mesonephric

    C) Pronephric

    D) Metanephric

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  • question_answer123) Which part of cell have enzymes for glycolysis?

    A) Cytoplasm

    B) Mitochondria

    C) Golgi complex

    D) Nucleus

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  • question_answer124) Botanical name of species which cause white rust of crucifers?

    A) Peronospora parasitica

    B) Puccinia graminis

    C) Pythium debaryanum

    D) Albugo Candida

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  • question_answer125) Which of the following nerve supplies organ of Cord?

    A) Auditory

    B) Olfactory

    C) Trochlear

    D) Vagus

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  • question_answer126) A pond is a:

    A) biome

    B) natural ecosystem

    C) artificial ecosystem

    D) community of plants and animals

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  • question_answer127) Which one of the following body functions is not performed by kidneys?

    A) Excretion

    B) Osmoregulation

    C) Regulation of blood volume

    D) Destruction of dead blood corpuscles

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  • question_answer128) The study of fossils is called:

    A) Palynology

    B) Palaeontology

    C) Fossil systematic

    D) Pharmacognosy

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  • question_answer129) The characteristic of blue-green algae is:

    A) DNA without histone

    B) nuclear membrane absent

    C) 70S ribosome

    D) all of the above

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  • question_answer130) Classification of sponges is primarily based on the:

    A) body organisation

    B) body plan

    C) skeleton

    D) canal system

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  • question_answer131) In mammals corpus luteum is found in which organ?

    A) Brain

    B) Ovary

    C) Liver

    D) Eyes

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  • question_answer132) Which character is found only in mammals?

    A) Neck

    B) Diaphragm

    C) Optic lobes of brain

    D) Tail

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  • question_answer133) Which of the following is not correct for gastrulation?

    A) Archenteron is formed

    B) All germinal layers are formed

    C) Morphogenetic movements

    D) Some blastomeres and blastocoel degenerate

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  • question_answer134) The chemical formula of starch is:

    A) \[{{({{C}_{6}}{{H}_{10}}{{O}_{5}})}_{n}}\]

    B) \[{{({{C}_{6}}{{H}_{12}}{{O}_{6}})}_{n}}\]

    C) \[{{C}_{12}}{{H}_{22}}{{O}_{11}}\]

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

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  • question_answer135) Which of the following is used during discovery of Calvin cycle?

    A) Spirogyra

    B) Volvox

    C) Chlamydomonas

    D) Chlorella

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  • question_answer136) Respiratory quotient of which diet is less than unity?

    A) Carbohydrate

    B) Fats

    C) Organic acids

    D) Sugar

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  • question_answer137) Velamen and spongy tissue is found in:

    A) breathing roots

    B) parasitic

    C) tuberous roots

    D) epiphytic roots

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  • question_answer138) The function of clitellum in Pheretima is:

    A) formation of cocoon

    B) secretion of hormone

    C) nutrition of sperm

    D) respiration

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  • question_answer139) Which of the following is not a function of water in cell?

    A) It provides energy for chemical reaction

    B) It act as a solvent

    C) It provides a medium for chemical reaction

    D) It release hydrogen ions on ionization

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  • question_answer140) In which of the following reptiles four chambered heart is present?

    A) Lizard

    B) Snake

    C) Scorpion

    D) Crocodile

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  • question_answer141) Rate of transpiration is measured by:

    A) nanometer

    B) auxanometer

    C) pofometer

    D) barometer

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  • question_answer142) Pigments present in chloroplast of Ulothrix:

    A) chlorophyll-a, chl. b, fucoxanthin \[\beta -\]carotene

    B) chl. a, chl. b, chl. c, c-phycocyanin, c-phycoerythrin

    C) chl. a, chl. b, \[\beta -\]carotene, xanthophyll

    D) chl. a, chl. b, r-phycocyanin r-phycoerythrin

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  • question_answer143) In Mirabilis a hybrid for red (RR) and white (rr) flower produces pink (Rr) flower. A plant with pink flower is crossed with white flower the expected phenotypic ratio is:

    A) red: pink : white (1 : 2:1)

    B) pink: white : (1 : 1)

    C) red: pink (1:1)

    D) red: pink (3:1)

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  • question_answer144) Which of the following is the site of lipid synthesis?

    A) Rough ER

    B) Smooth ER

    C) Golgi bodies

    D) Ribosome

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  • question_answer145) Which of the following vessel in rabbit starts with capillaries and ends in capillaries?

    A) Pulmonary artery

    B) Renal vein

    C) Hepatic portal vein

    D) Renal artery

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  • question_answer146) Which character is not same in aves and mammals?

    A) Single systemic arch

    B) Metaneptiric kidney

    C) Seven cervical vertebrae

    D) Homiotherms

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  • question_answer147) What is pollen grain?

    A) Microspore mother cell

    B) Male gamete

    C) Male gametophyte

    D) Partially developed embryo

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  • question_answer148) Solenocytes and nephridia are respectively found in:

    A) Platyhelminth and Annelids

    B) Annelids and Nematoda

    C) Cnidaria and Mollusca

    D) Mollusca and Echinodermata

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  • question_answer149) If a cell shrinks when placed in a solution, this solution is:

    A) hypotonic

    B) hypertonic

    C) isotonic

    D) mesotonic

    View Answer play_arrow
  • question_answer150) Aquatic reptiles are:

    A) ammonotelic

    B) ureotelic

    C) ureotelic in water

    D) ureotelic over land

    View Answer play_arrow

   

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