Solved papers for Haryana PMT Haryana PMT Solved Paper-2008

done Haryana PMT Solved Paper-2008

  • question_answer1) A black body at \[1227{}^\circ C\] emits radiations with maximum intensity at a wavelength of \[5000\overset{\text{o}}{\mathop{\text{A}}}\,\]. If the temperature of the body is increased by  \[1000{}^\circ C\], the maximum intensity will be observed at

    A) \[4000\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[5000\overset{\text{o}}{\mathop{\text{A}}}\,\]

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

    D) \[3000\overset{\text{o}}{\mathop{\text{A}}}\,\]

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  • question_answer2) A transistor-oscillator using a resonant circuit with an inductor L (of negligible resistance) and a capacitor C in series produce oscillations of frequency\[f\]. If L is doubled and C is changed to 4C, the frequency will be

    A) \[f\]/4

    B) 8\[f\]

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

    D) \[f\]/2

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  • question_answer3) A Carnot engine whose sink is at 300 K has an efficiency of 40%. By how much should the temperature of source be increased so as to increase its efficiency by 50% of original efficiency?

    A) 275 K

    B) 325 K

    C) 250 K

    D) 380 K

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  • question_answer4) An \[\alpha \]-particle of energy 5 MeV is scattered  through 180° by a fixed uranium nucleus. The distance of the closest approach is of the order of

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

    B)  \[{{10}^{-10}}cm\]

    C)  \[{{10}^{-12}}cm\]                         

    D)  \[{{10}^{-15}}cm\]

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  • question_answer5) Two masses \[{{m}_{1}}=5kg\] and \[{{m}_{2}}=4.8\text{ }kg\] tied to a string are hanging over a light frictionless pulley. What is the acceleration of the masses when lift is free to move ? \[(g=9.8m/{{s}^{2}})\]

    A) \[0.2\text{ }m/{{s}^{2}}\]

    B) \[9.8\text{ }m/{{s}^{2}}\]

    C) \[5\text{ }m/{{s}^{2}}\]

    D) \[4.8\text{ }m/{{s}^{2}}\]

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  • question_answer6) Alternating current cannot be measured by DC ammeter because

    A) AC cannot pass through DC ammeter

    B) AC changes direction.

    C) average value of current for complete ycle is zero

    D) DC ammeter will get damaged

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  • question_answer7) Two cells, having the same emf, are connected in series through an external resistance R. Cells have internal resistances \[{{r}_{1}}\]and \[{{r}_{2}}\]\[({{r}_{1}}>{{r}_{2}}),\] respectively. When the circuit is closed, the potential difference across the first cell is zero. The value of R is

    A) \[{{r}_{1}}-{{r}_{2}}\]

    B) \[\frac{{{r}_{1}}+{{r}_{2}}}{2}\]

    C) \[\frac{{{r}_{1}}+{{r}_{2}}}{2}\]

    D) \[{{r}_{1}}+{{r}_{2}}\]

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  • question_answer8) The binding energy of deuteron is 2.2 MeV and that of \[_{2}^{4}\]He is 28 MeV. If two deuterons are fused to form one \[_{2}^{4}\]He, then the energy released is

    A) 25.8 MeV

    B) 23.6 MeV

    C) 19.2 MeV

    D) 30.2 MeV

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  • question_answer9) lonization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. According to Bohrs theory, the spectral lines emitted by hydrogen will be

    A) two

    B) three

    C) four

    D) one

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  • question_answer10) The potential energy of a long spring when stretched by 2 cm is \[U\]. If the spring is stretched by 8 cm the potential energy stored in it is

    A) 4\[U\]

    B) 8\[U\]

    C) 16\[U\]

    D) \[U\]/4

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  • question_answer11) For angles of projection of a projectile at angles (45? - \[\text{ }\!\!\theta\!\!\text{ }\]) and (45? + \[\text{ }\!\!\theta\!\!\text{ }\]), the horizontal ranges described by the projectile are in the ratio of

    A) 1 : 1

    B) 2 : 3

    C) 1: 2

    D) 2 :1

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  • question_answer12) A body of mass 3 kg is under a constant force which causes a displacement s in metres in it, given by the relation \[s=\frac{1}{3}{{t}^{2}},\] where t is in 0 second. Work done by the force in 2 s is

    A) \[\frac{5}{19}J\]

    B) \[\frac{3}{8}J\]

    C) \[\frac{8}{3}J\]

    D) \[\frac{19}{5}J\]

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  • question_answer13) A particle moves along a straight line OX. At a time t (in second) the distance x (in metre) of the particle from 0 is given by \[x=40+12t-{{t}^{3}}\]how long would the particle travel before coming to rest?

    A) 24 m

    B) 40 m

    C) 56 m

    D) 16 m

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  • question_answer14) The velocity v of a particle at time t is given by \[v=at+\frac{b}{t+c}\]where a, b and c are constants. The dimensions of a, b and c are respectively

    A) \[[L{{T}^{2}}],[L]\] and \[[T]\]

    B) \[[{{L}^{2}}],\text{ }\!\![\!\!\text{ T }\!\!]\!\!\text{ }\] and \[[L{{T}^{2}}]\]

    C) \[[L{{T}_{2}}],[LT]\] and \[[L]\]

    D) \[[L],[LT]\] and \[[{{T}^{2}}]\]

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  • question_answer15) A microscope is focussed on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?

    A) 1 cm upward

    B) 4.5 cm downward

    C) 1 cm downward

    D) 2 cm upward

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  • question_answer16) 300 J of work is done in sliding a 2 kg block up an inclined plane of height 10 m. Taking \[g=10m/{{s}^{2}}\] work done against friction is

    A) 200 J

    B) 100 J

    C) zero

    D) 1000 J

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  • question_answer17) A transistor is operated in common emitter configuration at constant collector voltage \[{{V}_{C}}=1-5V\] such that a change in the base current from 100 \[\mu \]A to 150 \[\mu \]A produces a change in the collector current from 5 mA to 10 mA. The current gain (\[\beta \]) is

    A) 67

    B) 75

    C) 100

    D) 50

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  • question_answer18) The core of a transformer is laminated because

    A) energy losses due to eddy currents may be minimized

    B) the weight of the transformer may be reduced

    C) rusting of the core may be prevented

    D) ratio of voltage in primary and secondary may be increased

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  • question_answer19) Two coils of self-inductances 2 mH and 8 mH are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is

    A) 10 mH

    B) 6 mH

    C) 4 mH

    D) 16 mH

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  • question_answer20) In a discharge tube ionization of enclosed gas is produced due to collisions between

    A) positive ions and neutral atoms/molecules

    B) negative electrons and neutral atoms/molecules

    C) photons and neutral atoms/molecules

    D) neutral gas atoms/molecules

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  • question_answer21) When photons of energy hv fall on an aluminium plate (of work function \[{{E}^{0}}\]), photoelectrons of maximum kinetic energy K are ejected. If the frequency of the radiation is doubled, the maximum kinetic energy of the ejected photoelectrons will be

    A) \[K+{{e}_{0}}\]

    B) \[2K\]

    C) \[K\]

    D) \[K+hv\]

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  • question_answer22) A coil of inductive reactance 31\[\Omega \] has a resistance of 8\[\Omega \]. It is placed in series with a condenser of capacitive reactance 25\[\Omega \]. The combination is connected to an AC source of 110 V. The power factor of the circuit is

    A) 0.56

    B) 0.64

    C) 0.80

    D) 0.33

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  • question_answer23) The moment of inertia of a uniform circular disc of radius R and mass M about an axis touching the disc at its diameter and normal to the disc is

    A) \[M{{R}^{2}}\]

    B) \[\frac{2}{5}M{{R}^{2}}\]

    C) \[\frac{3}{2}M{{R}^{2}}\]

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

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  • question_answer24) The momentum of a photon of energy 1 MeV in kg-m/s, will be

    A) \[0.33\times {{10}^{6}}\]

    B) \[7\times {{10}^{-24}}\]

    C) \[{{10}^{-22}}\]

    D) \[5\times {{10}^{-22}}\]

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  • question_answer25) The radius of germanium (Ge) nuclide is measured to be twice the radius of \[_{4}^{9}\]Be. The number of nucleons in Ge are

    A) 73

    B) 74

    C) 75

    D) 72

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  • question_answer26) The molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio of specific heat at constant pressure to that at constant volume is

    A) 7/5

    B) 8/7

    C) 5/7

    D) 9/7

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  • question_answer27) The earth is assumed to be a sphere of radius R.A platform is arranged at a height R from the surface of the earth. The escape velocity of a body from this platform is \[f{{v}_{e,}}\] where \[{{v}_{e}}\] is its escape velocity from the surface of the earth. The value of\[f\] is

    A) \[\sqrt{2}\]

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

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

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

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  • question_answer28) Two sound waves with wavelength 5.0 m and 5.5 m respectively, each propagate in a gas with velocity 330 m/s. We expect the following number of beats per second

    A) 12

    B) zero

    C) 1

    D) 6

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  • question_answer29) Power dissipated across the 8\[\Omega \] resistor in the circuit shown here is 2W. The power dissipated in watt units across the 3\[\Omega \] resistor is

    A) 2.0

    B) 1.0

    C) 0.5

    D) 3.0

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  • question_answer30) Kirchhoffs first and second laws for electrical circuits are consequences of

    A) conservation of energy

    B) conservation of electric charge and energy respectively

    C) conservation of electric charge

    D) conservation of energy and electric charge respectively

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  • question_answer31) A transverse wave propagating along x-axis is represented by \[y(x,t)=8.0\sin \left( 05\pi x-4\pi t-\frac{\pi }{4} \right)\]where x is in metre and t is in second. The speed of the wave is

    A) 4\[\pi \] m/s

    B) 0.5 \[\pi \] m/s

    C) \[\frac{\pi }{4}\] m/s

    D) 8 m/s

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  • question_answer32) The time of reverberation of a room A is one second. What will be the time (in second) of reverberation of a room, having all the. dimensions double of those of room A?

    A) 2

    B) 4

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

    D) 1

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  • question_answer33) Which one of the following statements is true?

    A) Both light and sound waves in air are transverse

    B) The sound waves in air are longitudinal while the light waves are transverse

    C) Both light and sound waves in air are longitudinal

    D) Both light and sound waves can travel in vacuum

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  • question_answer34) Above Curie temperature

    A) a ferromagnetic substance becomes paramagnetic

    B) a paramagnetic substance becomes diamagnetic

    C) a diamagnetic substance becomes paramagnetic

    D) a paramagnetic substance becomes ferromagnetic

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  • question_answer35) A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power in diopters of the combination is

    A) 25

    B) 50

    C) infinite

    D) zero

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  • question_answer36) An electric dipole of moment \[\overrightarrow{\text{P}}\] is lying along a uniform electric field \[\overrightarrow{\text{E}\text{.}}\]The work done in rotating the dipole by 90? is

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

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

    C) \[2pE\]

    D) \[pE\]

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  • question_answer37) A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 s for every circular lap. The average velocity and average speed for each circular lap respectively is

    A) 0, 0

    B) 0, 10 m/s

    C) 10 m/s, 10 m/s

    D) 10 m/s, 0

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  • question_answer38) A tube of length L is filled completely with an incompressible liquid of mass M and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity \[\omega .\]The force exerted by the liquid at the other end is

    A) \[\frac{ML{{\omega }^{2}}}{2}\]

    B) \[\frac{M{{L}^{2}}{{\omega }^{{}}}}{2}\]

    C) \[ML{{\omega }^{2}}\]

    D) \[\frac{M{{L}^{2}}{{\omega }^{2}}}{2}\]

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  • question_answer39) Which of the following statements is correct for any thermodynamic system?

    A) The internal energy changes in all processes

    B) Internal energy and entropy are state functions

    C) The change in entropy can never be zero

    D) The work done in an adiabatic process is always zero

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  • question_answer40) The vectors \[\text{\vec{A}}\] and \[\text{\vec{B}}\] are such that\[\text{ }\!\!|\!\!\text{ }\overrightarrow{\text{A}}\text{+}\overrightarrow{\text{B}}\text{ }\!\!|\!\!\text{ }\,\text{=}\,\text{ }\!\!|\!\!\text{ }\overrightarrow{\text{A}}\text{-}\overrightarrow{\text{B}}|\] The angle between the two vectors is

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

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

    C) \[75{}^\circ \]

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

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  • question_answer41) Infrared radiations are detected by

    A) spectrometer

    B) pyrometer

    C) nanometer

    D) photometer

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  • question_answer42) Which of the following is more close to a black body?

    A) Black board paint

    B) Green leaves

    C) Black holes

    D) Red roses

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  • question_answer43) Formation of covalent bonds in compounds exhibits

    A) wave nature of electron

    B) particle nature of electron

    C) both wave and particle nature of electron

    D) None of the above

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  • question_answer44) The radius of a spherical drop of water is 1 mm. If surface tension of water be \[70\times {{10}^{-3}}N/m,\]the pressure difference inside and outside the drop will be

    A) \[70\text{ }N/{{m}^{2}}\]

    B) \[140\text{ }N/{{m}^{2}}\]

    C) \[280\text{ }N/{{m}^{2}}\]

    D) zero

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  • question_answer45) A laser beam is coherent because it contains

    A) waves of several wavelengths

    B) incoherent waves of a single wavelength

    C) coherent waves of several wavelengths

    D) coherent waves of a single wavelength

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  • question_answer46) Protein is a polymer of

    A) glucose

    B) terephthalic acid

    C) amino acid

    D) glycol

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  • question_answer47) \[HCl\] is completely neutralised by \[NaOH\] solution. The resulting solution contains the following species

    A) \[N{{a}^{+}},C{{l}^{-}},{{H}_{3}}{{O}^{+}}\]

    B) \[N{{a}^{+}},C{{l}^{-}},{{H}_{2}}O\]

    C) \[N{{a}^{+}},C{{l}^{-}},O{{H}^{-}}\]

    D) \[{{H}^{+}},{{H}_{3}}{{O}^{+}}\]

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  • question_answer48) The degree of dissociation of XY in case of following reaction is found to be \[0.4\] from vapour density measurement. If the observed vapour density of X Y be 100 then its molecular weight is \[XY\to X+Y\]

    A) \[140\]

    B) \[70\]

    C) \[280\]

    D) \[210\]

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  • question_answer49) For the reaction,\[C(s)+C{{O}_{2}}(g)2CO(g)\]the partial pressure of \[C{{O}_{2}}\] and \[CO\] are 2.0 and 4.0 arm respectively then equilibrium \[{{K}_{p}}\] for the reaction will be

    A) \[0.5\]

    B) \[8.0\]

    C) \[4.0\]

    D) \[32\]

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  • question_answer50) Solubility of \[AgCl\] will be minimum in

    A) \[0.01M\text{ }NaCl\]solution

    B) \[0.01M\text{ }CaC{{l}_{2}}\] solution

    C) pure water

    D) \[0.001M\,\,\,AgN{{O}_{3}}\]solution

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  • question_answer51) pH of \[HCl\] (cone.\[0.1mol/L\]) is one. Compute the pH of 0.05 mol/L solution of \[{{H}_{2}}S{{O}_{4}}\].

    A) \[0.05\]

    B) \[0.5\]

    C) \[1\]

    D) \[2\]

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  • question_answer52) What is the pH at equivalence point in the titration of \[0.1M\,\,\,C{{H}_{3}}COOH\]and \[0.1M\]\[NaOH\]? (\[{{K}_{a}}\] for acetic acid is\[1.8\times {{10}^{-5}}\])

    A) 7

    B) Between 7 and 8

    C) Between 8 and 9

    D) Between 6 and 7

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  • question_answer53) Given

    Acid \[p{{K}_{a}}\]
    \[C{{H}_{3}}C{{O}_{2}}H\] (i) \[0.7\]
    \[CC{{l}_{3}}C{{O}_{2}}H\] (ii) \[0.2\]
    \[ClC{{H}_{2}}C{{O}_{2}}H\] (iii) \[4.8\]
    \[{{F}_{3}}CC{{O}_{2}}H\] (iv) \[2.9\]
    The correct code is

    A) A-(iii) B- (i) C-(iv) D- (ii)

    B) A- (ii) B-(iv) C-(i) D- (iii)

    C) A- (iii) B- (ii) C-(i) D- (iv)

    D) A-(i) B-(iii) C-(ii) D- (iv)

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  • question_answer54) A basic buffer solution is formed by selecting the pair

    A) \[KCN-KOH\]

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

    C) \[N{{H}_{4}}OH-C{{H}_{3}}COON{{H}_{4}}\]

    D) \[NaCI-NaOH\]

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  • question_answer55) Which will have the minimum value of \[p{{K}_{b}}\]?

    A) \[O{{H}^{-}}\]

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

    C) \[Cr\]

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

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  • question_answer56) A first order reaction complete ifs \[10%\] in 20 min then time required to complete-its \[19%\]is (log\[3=0.477\])

    A) \[30\text{ }min\]

    B) \[40min\]

    C) \[38min\]

    D) \[45min\]

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  • question_answer57) The \[\Delta H\] value of the reaction,\[{{H}_{2}}+C{{l}_{2}}2HCl\] is \[-44.2kcal\] If \[{{E}_{1}}\] is the activation energy of the forward reaction, then for the above reaction activation energy of reverse reaction \[{{E}_{2}}\] is

    A) \[{{E}_{1}}>{{E}_{2}}\]

    B) \[{{E}_{1}}<{{E}_{2}}\]

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

    D) \[\Delta H\] is not related to \[{{E}_{1}}\] and \[{{E}_{2}}\]

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  • question_answer58) The integrated rate equation is \[kt=\log \,{{C}_{0}}-\log {{C}_{t}}\]. The straight line graph is obtained by plotting

    A) \[\log {{C}_{t}}\] vs time

    B) \[\frac{1}{time}vs\,\,{{C}_{t}}\]

    C) time \[vs\,\,{{C}_{t}}\]

    D) \[\frac{1}{time}vs\frac{1}{{{C}_{t}}}\]

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  • question_answer59) A mixture has \[18g\]water and \[414g\]ethanol. The mole fraction of water in mixture is (assume ideal behaviour of the mixture)

    A) \[0.1\]

    B) \[0.4\]

    C) \[0.7\]

    D) \[0.9\]

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  • question_answer60) An aqueous solution of methanol in water has vapour pressure

    A) equal to that of water

    B) equal to that of methanol

    C) more than that of water

    D) less than that of water

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  • question_answer61) Which of the following liquid pairs shows a positive deviation from Raoults law?

    A) Water-nitric acid

    B) Benzene-methanol

    C) Water-hydrochloric acid

    D) Acetone-chloroform

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  • question_answer62) A solution of sucrose (molar mass\[=342\text{ }g/mol\]) is prepared by dissolving 68.4 g of it per litre of the solution, what is its osmotic pressure? (\[R=0.082L\text{ }atm\text{ }{{K}^{-1}}\text{ m}o{{l}^{-1}}\]) at 273 K

    A) \[6.02\text{ }atm\]

    B) \[4.477atm\]

    C) \[3.4atm\]

    D) \[5.32atm\]

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  • question_answer63) How many atoms of calcium will be deposited from a solution of \[CaC{{l}_{2}}\]by a current of 25 milliamperes flowing for 60 s

    A) \[4.68\times {{10}^{18}}\]

    B) \[4.68\times {{10}^{15}}\]

    C) \[4.68\times {{10}^{12}}\]

    D) \[4.68\times {{10}^{9}}\]

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  • question_answer64) EMF of a cell whose half cells are given below is \[M{{g}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Mg(s);\] \[E=-2.37V\] \[C{{u}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Cu(s);\] \[E=+0.33V\]

    A) \[-2.03V\]

    B) \[1.36V\]

    C) \[2.7V\]

    D) \[2.03V\]

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  • question_answer65) Which of the following does not give a white precipitate with \[AgN{{O}_{3}}\]solution?

    A) Propyne

    B) 1-butyne

    C) 2-butyne

    D) 1-pentyne

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  • question_answer66) Electrode potentials of five elements A, B, C, D and E are respectively \[-1.36,-0.32,0,-1.26\] and \[-6.42\]. The reactivity order of these elements are in the decreasing order of

    A) A, D, E, B and C

    B) C, B, E, D and A

    C) B, D, E, A and C

    D) C, A, E, D and B

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  • question_answer67) Which does not have carboxylic group?

    A) Benzoic acid

    B) Lactic acid

    C) Picric acid

    D) Aspirin

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  • question_answer68) Which of the following has highest chlorine content?

    A) Pyrene

    B) DDT

    C) Chloral

    D) BHC

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  • question_answer69) Acetamide and \[NaOBr/O{{H}^{-}}\] produce

    A) ethanamide

    B) methanamine

    C) ethanamine

    D) formic acid

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  • question_answer70) Vitamin \[{{B}_{12}}\]contains

    A) \[Co(III)\]

    B) \[Zn(II)\]

    C) v

    D) \[Fe(II)\]

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  • question_answer71) Which of the following is maximum basic?

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

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

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

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

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  • question_answer72) Calcium carbide on hydrolysis form

    A) ethane

    B) ethylene

    C) methane

    D) acetylene

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  • question_answer73) Collins reagent is

    A) \[Mn{{O}_{2}}/HCl\]

    B) \[Mn{{O}_{4}}/{{C}_{5}}{{H}_{5}}N\]

    C) \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}/{{H}_{2}}S{{O}_{4}}\]

    D) \[C{{r}_{2}}{{O}_{3}}/2{{C}_{5}}{{H}_{5}}N\]

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  • question_answer74) General formula of paraffin is

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

    B) \[{{C}_{n}}{{H}_{2n-2}}\]

    C) \[{{C}_{n}}{{H}_{2n+2}}\]

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

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  • question_answer75) Which of the following does not give iodoform reaction?

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

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

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

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

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  • question_answer76) The reaction,\[C{{H}_{2}}=CHC{{H}_{3}}+HBr\xrightarrow{{}}C{{H}_{3}}CHBrC{{H}_{3}}\]is a type of

    A) electrophilic addition reaction

    B) nucleophilic addition reaction

    C) free radical addition reaction

    D) electrophilic substitution reaction

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  • question_answer77) Which of the following aldehyde is most reactive towards nucleophilic addition reaction?

    A) \[HCHO\]

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

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

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

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  • question_answer78) An. unknown compound has molar mass\[240g/mol\] . Its empirical formula is \[C{{H}_{2}}O\] then its molecular formula will be

    A) \[{{C}_{4}}{{H}_{8}}{{O}_{4}}\]

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

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

    D) \[{{C}_{8}}{{H}_{16}}{{O}_{8}}\]

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  • question_answer79) Which of the following give \[{{H}_{2}}\] gas with Na?

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

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

    C) \[{{C}_{2}}{{H}_{4}}\]

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

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  • question_answer80) Phenol when treated with phthalic anhydride in presence of cone. \[{{H}_{2}}S{{O}_{4}}\] forms X which produces pink colour on reaction with base. The compound X is

    A) benzene sulphonic acid

    B) Phenolphthalene

    C) salicylic acid

    D) nitrophenol

    View Answer play_arrow
  • question_answer81) Blue vitriol has

    A) ionic bond

    B) hydrogen bond

    C) coordinate bond

    D) All of the above

    View Answer play_arrow
  • question_answer82) According to MOT, \[{{C}_{2}}\] molecule has

    A) one a and one n bond

    B) only two n bonds

    C) only two a bonds

    D) one o and two n bonds

    View Answer play_arrow
  • question_answer83) What is wrong about \[CO_{3}^{2-}\] ion ?

    A) It has planar structure

    B) It has one coordinate bond

    C) It has three resonating structures

    D) Hydrolysis of \[CO_{3}^{2-}\] ion gives basic solution

    View Answer play_arrow
  • question_answer84) Which of the following is most polar?

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

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

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

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

    View Answer play_arrow
  • question_answer85) Which of the following will furnish \[F{{e}^{3+}}\] ions in solution?

    A) \[F{{e}_{4}}{{[Fe{{(CN)}_{6}}]}_{3}}\]

    B) \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}.FeS{{O}_{4}}.6{{H}_{2}}O\]

    C) \[F{{e}_{3}}{{[Fe{{(CN)}_{6}}]}_{2}}\]

    D) \[{{[Fe{{(CN)}_{6}}]}^{3-}}\]

    View Answer play_arrow
  • question_answer86) When \[KMn{{O}_{4}}\]reacts with acidified \[FeS{{O}_{4}}\]

    A) only \[FeS{{O}_{4}}\] is oxidized

    B) only \[KMn{{O}_{4}}\] is oxidized

    C) \[FeS{{O}_{4}}\] is oxidised and \[KMn{{O}_{4}}\] is reduced

    D) None of the above

    View Answer play_arrow
  • question_answer87) Which of the following electronic configuration corresponds to the highest value of ionisation potential?

    A) \[[Xe]6{{s}^{2}}\]

    B) \[[Ar]4{{s}^{2}}3{{d}^{10}}\]

    C) \[1{{s}^{2}}\]

    D) \[[Rn]7{{s}^{2}}6{{d}^{1}}5{{f}^{14}}\]

    View Answer play_arrow
  • question_answer88) An element with atomic number 112 has been made recently. It should be

    A) an actinide

    B) a transition metal

    C) a noble gas

    D) a lanthanide

    View Answer play_arrow
  • question_answer89) Product of the following reaction is\[A{{l}_{4}}{{C}_{3}}+{{D}_{2}}O\xrightarrow{{}}\]

    A) \[Al{{(OD)}_{3}}+C{{D}_{4}}\]

    B) \[Al{{(OD)}_{2}}+C{{D}_{4}}\]

    C) \[Al{{(OD)}_{4}}+C{{D}_{4}}\]

    D) \[Al{{(OD)}_{3}}+CD\]

    View Answer play_arrow
  • question_answer90) Which is maximum basic?

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

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

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

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

    View Answer play_arrow
  • question_answer91) Which is not a protein?

    A) Alpha amylase

    B) Ribozyme

    C) Histidine kinase

    D) Nitrogenase

    View Answer play_arrow
  • question_answer92) Black pepper is

    A) herb

    B) shrub

    C) tree

    D) climber

    View Answer play_arrow
  • question_answer93) Which of the followings is not caused by deficiency of mineral ?

    A) Chlorosis

    B) Etiolation

    C) Shortening of intemodes

    D) Necrosis

    View Answer play_arrow
  • question_answer94) Retrovirus have genetic material

    A) DNA only

    B) RNA only

    C) DNA or RNA only

    D) either DNA or RNA only

    View Answer play_arrow
  • question_answer95) In Funaria calyptra arises from

    A) capsule

    B) antheridium

    C) columella

    D) archegonium

    View Answer play_arrow
  • question_answer96) DCMU

    A) inhibits PS-I

    B) inhibits PS-II

    C) destroy chloroplast

    D) inhibits oxidative phosphoryladon

    View Answer play_arrow
  • question_answer97) Prions consist mainly of

    A) protein

    B) DNA

    C) RNA

    D) Both (b) and (c)

    View Answer play_arrow
  • question_answer98) \[N{{H}_{3}}\]releases from

    A) photorespiration

    B) dark respiration

    C) CAM

    D) All of these

    View Answer play_arrow
  • question_answer99) According to Kyoto protocol the major nations abide to reduce concentration of greenhouse gases by.

    A) 2008

    B) 2010

    C) 2012

    D) 2018

    View Answer play_arrow
  • question_answer100) Hela cells used in cell biology are

    A) cancerous cells grown in cancer research laboratory

    B) cervical cancer cell derivatives

    C) Both (a) and (b)

    D) None of the above

    View Answer play_arrow
  • question_answer101) In 2002 AD according to research the concentration of CFC reached to

    A) 368 ppm

    B) 1750 ppb

    C) 261 ppt

    D) 326 ppb

    View Answer play_arrow
  • question_answer102) Which of the following causes abortion in ladies?

    A) Viruses

    B) Bacteria

    C) Mycoplasma

    D) None of these

    View Answer play_arrow
  • question_answer103) Which of the following is a prokaryote?

    A) Amoeba

    B) Spirogyra

    C) Bacteria

    D) Chlamydomonas

    View Answer play_arrow
  • question_answer104) Ginger is an underground stem. It is distinguished from root because

    A) it lacks chlorophyll

    B) it stores food

    C) it has nodes and intemodes

    D) it has xylem and vessels

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  • question_answer105) DNA replication includes

    A) DNA ligase

    B) DNA polymerase and ligase

    C) RNA polymerase

    D) All of the above

    View Answer play_arrow
  • question_answer106) During DNA replication in prokaryotes DNA is anchored to

    A) chromosome

    B) mesosome

    C) nucleolus

    D) ribosome

    View Answer play_arrow
  • question_answer107) Stain used by Feulgen to stain DNA is

    A) janus green

    B) basic fuschin

    C) crystal violet

    D) methylene blue

    View Answer play_arrow
  • question_answer108) The mineral present in cell wall is

    A) Na

    B) Ca

    C) K

    D) Mg

    View Answer play_arrow
  • question_answer109) Male gamete in angiosperm is produced by

    A) Generative cell

    B) Microspore cell

    C) Vegetative cell

    D) Tube cell

    View Answer play_arrow
  • question_answer110) Meristematic tissue in vascular bundle is

    A) phellem

    B) procambium

    C) interfasicular cambium

    D) fasicular cambium

    View Answer play_arrow
  • question_answer111) Study of Ecology of population is called

    A) Autecology

    B) Synecology

    C) Ecotype

    D) Demecology

    View Answer play_arrow
  • question_answer112) Dwarf wheat was developed by

    A) M S Swaminathan

    B) Vavilov

    C) Borlaug

    D) B D Singh

    View Answer play_arrow
  • question_answer113) A pure tall and a pure dwarf plant were crossed to produce offsprings. Offsprings were self-crossed, then find out the ratio between true breeding tall to true breeding dwarf ?

    A) 1 : 1

    B) 3 :1

    C) 2 : 1

    D) 1 : 2 : 1

    View Answer play_arrow
  • question_answer114) Which of the following plant is LDP ?

    A) Xanthium

    B) Soybean

    C) Wheat

    D) Tobacco

    View Answer play_arrow
  • question_answer115) Genophore term was coined by Hans R is for

    A) genetic material of virus

    B) stack on which spore originated

    C) bacterial chromosome

    D) fungal chromosome

    View Answer play_arrow
  • question_answer116) Cross between unrelated group of organisms is called

    A) hybrid

    B) test cross

    C) back cross

    D) (d hleterosis

    View Answer play_arrow
  • question_answer117) Which of the following is used as a best genetic vector in plants?

    A) Bacillus thurengiensis

    B) Agrobacterium tumifaciens

    C) Pseudomonas putida

    D) All of the above

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  • question_answer118) Genetics term was proposed by

    A) Mendel

    B) Bateson

    C) Morgan

    D) Johannson

    View Answer play_arrow
  • question_answer119) One gene-one enzyme hypothesis of Beadle and Tatum was experimentally proved on,

    A) Saccaromyces

    B) Neurospora crassa

    C) Lathyrus odoratus

    D) Claviceps

    View Answer play_arrow
  • question_answer120) Cytochrome oxidase is a/an

    A) exoenzyme

    B) endoenzyme

    C) proenzyme

    D) coenzyme

    View Answer play_arrow
  • question_answer121) Which of the following is not a pyrimidine ?

    A) Thymine

    B) Uracil

    C) Guanine

    D) Cytosine

    View Answer play_arrow
  • question_answer122) Fusiform initial forms

    A) vascular rays

    B) ray parenchyma

    C) tracheary elements

    D) primary phloem

    View Answer play_arrow
  • question_answer123) Which organelle is present in higher number in secretory cells?

    A) Dictyosome

    B) ER

    C) Lysosome

    D) Vacuole

    View Answer play_arrow
  • question_answer124) Bio-indicators are used for

    A) oxygen demand

    B) air pollution

    C) mineral present

    D) All of the above

    View Answer play_arrow
  • question_answer125) Phototropism is due to the hormone

    A) IAA

    B) GA

    C) 2, 4-D

    D) cytokinin

    View Answer play_arrow
  • question_answer126) DNA is acidic due to

    A) sugar

    B) phosphoric acid

    C) purine

    D) pyrimidine

    View Answer play_arrow
  • question_answer127) Highest number of enzymes is found in

    A) lysosome

    B) chloroplast

    C) mitochondria

    D) peroxisome

    View Answer play_arrow
  • question_answer128) Psammophytes are plants that grow where soil is

    A) alkaline

    B) sandy

    C) acidic

    D) alluvial

    View Answer play_arrow
  • question_answer129) Nitrifying bacteria are able to

    A) convert atmospheric nitrogen into soluble forms

    B) convert ammonia to nitrate

    C) ammonia to nitrogen

    D) nitrate to nitrogen

    View Answer play_arrow
  • question_answer130) Huxley is father of

    A) classical taxonomy

    B) artificial taxonomy

    C) neo-taxonomy

    D) adansonian taxonomy

    View Answer play_arrow
  • question_answer131) RNA is not found in

    A) chromosome

    B) plasmalemma

    C) nucleolus

    D) ribosome

    View Answer play_arrow
  • question_answer132) Systema Naturae is written by

    A) Linnaeus

    B) Aristotle

    C) Hippocrates

    D) Darwin

    View Answer play_arrow
  • question_answer133) Binomial nomenclature was first issued in

    A) Systema Naturae

    B) Genera Plantarum

    C) Genera Animalium

    D) Historia Plantarum

    View Answer play_arrow
  • question_answer134) Number of chromosome in an angiospermic plant is 14, then the number of chromosome in synergid cells will be

    A) 14

    B) 7

    C) 23

    D) 21

    View Answer play_arrow
  • question_answer135) In September 2001, which of the following was used as a bioweapon agent in America ?

    A) botulinum

    B) anthrax (Bacillus anthracis)

    C) polio virus

    D) AIDS virus

    View Answer play_arrow
  • question_answer136) Formation of RNA on DNA template is called

    A) transduction

    B) transformation

    C) transcription

    D) transfer

    View Answer play_arrow
  • question_answer137) Presence of tail in a child is an example of

    A) atavism

    B) divergent evolution

    C) convergent evolution

    D) mutation

    View Answer play_arrow
  • question_answer138) To confirm ELISA for AIDS we used

    A) western blotting

    B) northern blotting

    C) southern blotting

    D) eastern blotting

    View Answer play_arrow
  • question_answer139) Action potential is generated by

    A)

    B)

    C)

    D)

    View Answer play_arrow
  • question_answer140) Hot dilute soup was given by

    A) Oparin

    B) Haldane

    C) Urey

    D) None of these

    View Answer play_arrow
  • question_answer141) Aqueous and vitreous humour are divided by

    A) lens

    B) iris

    C) retina

    D) optic nerve

    View Answer play_arrow
  • question_answer142) Gene for colourblindness is located on

    A) Y chromosome

    B) 13th chromosome

    C) X chromosome

    D) 21st chromosome

    View Answer play_arrow
  • question_answer143) Species going to extinct due to low reproductive rate is

    A) lion

    B) bald eagle

    C) giant panda

    D) island sp.

    View Answer play_arrow
  • question_answer144) Indian rhinoceros are protected in

    A) Gir Forest

    B) Kaziranga National Park

    C) Bandipur National Park

    D) Ranthambore National Park

    View Answer play_arrow
  • question_answer145) Mitotic spindle have main protein

    A) tubulin

    B) myosin

    C) tropomyocin

    D) dynein

    View Answer play_arrow
  • question_answer146) Adrenal gland is derived from

    A) ectoderm

    B) mesoderm

    C) ectoderm and mesoderm

    D) ectoderm and endoderm

    View Answer play_arrow
  • question_answer147) Accessory sexual character in female is promoted by

    A) androgen

    B) progesterone

    C) estrogen

    D) testosterone

    View Answer play_arrow
  • question_answer148) X-lipked recessive gene is

    A) always expressed in male

    B) always expressed in female

    C) lethal

    D) sub lethal

    View Answer play_arrow
  • question_answer149) Hbisa

    A) reproductive pigment

    B) respiratory pigment

    C) carbohydrate

    D) fat

    View Answer play_arrow
  • question_answer150) Bile secretion is proportional to the concentration of

    A) protein

    B) fat

    C) carbohydrate

    D) None of these

    View Answer play_arrow
  • question_answer151) Ligament is mainly made up of

    A) reticulin

    B) elastin

    C) myosin

    D) collagen

    View Answer play_arrow
  • question_answer152) Secretion of pancreatic juice is stimulated by

    A) gastrin

    B) secretin

    C) enterogasteron

    D) enterokinase

    View Answer play_arrow
  • question_answer153) Out of 64 codons only 61 codes for the 20 different amino acids. This character of genetic code is called

    A) degeneracy

    B) non ambiguous nature

    C) redundancy

    D) overlapping

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  • question_answer154) Crossing over occurs in

    A) zygotene

    B) leptotene

    C) pachytene

    D) diplotene

    View Answer play_arrow
  • question_answer155) Connection between axon and dendrite is

    A) synapse

    B) synapsis

    C) desmosome

    D) tight junction

    View Answer play_arrow
  • question_answer156) Irregular nuclei is present in

    A) neutrophils

    B) basophils

    C) eosinophils

    D) monocytes

    View Answer play_arrow
  • question_answer157) Mesozoic era is golden period of

    A) reptiles

    B) Mollusca

    C) fishes

    D) amphibians

    View Answer play_arrow
  • question_answer158) Fossil found in Mandia district of MP is

    A) 260 million years old

    B) 100 million years old

    C) 50 million years old

    D) 20 million years old

    View Answer play_arrow
  • question_answer159) Which hormone is responsible for milk ejection after the birth of the baby ?

    A) Oxytocin

    B) Progesterone

    C) Prolactin

    D) Estrogen

    View Answer play_arrow
  • question_answer160) Hamburger shift is also known as

    A) bicarbonate shift

    B) chloride shift

    C) potassium shift

    D) All of the above

    View Answer play_arrow
  • question_answer161) Bundle of His are

    A) nervous tissue supplied to ventricles

    B) nervous tissue supplied to heart

    C) muscular tissue supplied to ventricle

    D) muscular tissue supplied to heart

    View Answer play_arrow
  • question_answer162) Number of bones in skull is

    A) 26

    B) 28

    C) 107

    D) 29

    View Answer play_arrow
  • question_answer163) Cell theory was proposed by

    A) Virchow

    B) Schleiden and Schwann

    C) Robert Hooke

    D) B McClintock

    View Answer play_arrow
  • question_answer164) Viroids cause

    A) tobacco mosaic

    B) tulip yellow mosaic

    C) cauliflower mosaic

    D) potato spindle mosaic

    View Answer play_arrow
  • question_answer165) Who for the first time developed electron microscope?

    A) Knoll and Ruska

    B) Rudolf and Kolliker

    C) Robert Hooke

    D) Swanson

    View Answer play_arrow
  • question_answer166) Represser protein is produced by

    A) regulator gene

    B) operator gene

    C) structural gene

    D) promoter gene

    View Answer play_arrow
  • question_answer167) Nucleated RBC is found in

    A) man

    B) rat

    C) rabbit

    D) frog

    View Answer play_arrow
  • question_answer168) We know that the thyroxine controls metabolism in body. An autoimmune disease where the bodys own antibodies attack the cells of the thyroid is called

    A) Hyperthyroidism

    B) Hashimotos disease

    C) Graves disease

    D) Turner syndrome

    View Answer play_arrow
  • question_answer169) Acid hydrolase is found in

    A) Golgi body

    B) ER

    C) Lysosome

    D) Vacuole

    View Answer play_arrow
  • question_answer170) Autonomic nervous system effects on

    A) reflex actions

    B) sensory organs

    C) internal organ

    D) None of these

    View Answer play_arrow
  • question_answer171) Schizogony occurs in

    A) RBC of human

    B) intestine of parasite

    C) liver of human

    D) liver of parasite

    View Answer play_arrow
  • question_answer172) Haemophilia is due to absence of

    A) factor-VI

    B) factor-VII

    C) factor-VIII

    D) factor-IX

    View Answer play_arrow
  • question_answer173) Which of these is a dominant  factor ?

    A) Rh factors                          

    B) Haemophilia

    C) Albinism                             

    D) Colour blindness

    View Answer play_arrow
  • question_answer174) Sertoli cells are found in testis. These cells are

    A) nurse cell

    B) reproductive cell

    C) receptor cell

    D) None of these

    View Answer play_arrow
  • question_answer175) Hinge joint is present between

    A) femur and ulna

    B) humerus and ulna

    C) femur and pectoral girdle

    D) femur and pelvic girdle

    View Answer play_arrow
  • question_answer176) Which is immortal ?

    A) Plasma cell

    B) Germ cell

    C) Brain cell

    D) Kidney cell

    View Answer play_arrow
  • question_answer177) After a deep inspiration and maximum expiration, the capacity of lungs is known as

    A) vital capacity

    B) tidal volume

    C) IRV

    D) ERV

    View Answer play_arrow
  • question_answer178) Cryptorchidism is a condition in which

    A) testis does not descend into scrotal sac

    B) sperm is not found

    C) male hormones are not reactive

    D) ovaries are removed

    View Answer play_arrow
  • question_answer179) Which one is a laevorotatory sugar ?

    A) Sucrose

    B) Glucose

    C) Fructose

    D) None of these

    View Answer play_arrow
  • question_answer180) Which one is the sweetest sugar?

    A) Glucose

    B) Fructose

    C) Sucrose

    D) Maltose

    View Answer play_arrow

   

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