Solved papers for Punjab Medical Punjab - MET Solved Paper-2011

done Punjab - MET Solved Paper-2011

  • question_answer1) The electromotive force of primary cell is \[2\,\,V\]. When it is short circuited it gives a current of \[4\,\,A\]. Its internal resistance in ohm is

    A) 0.5

    B) 5.0

    C) 2.0

    D) 8.0

    View Answer play_arrow
  • question_answer2) The value of electric permittivity of free space is

    A) \[9\times {{10}^{9}}N{{c}^{2}}/{{m}^{2}}\]

    B) \[8.9\times {{10}^{-12}}N{{m}^{2}}/{{C}^{2}}s\]

    C) \[8.9\times {{10}^{-12}}{{C}^{2}}/N{{m}^{2}}\]

    D) \[9\times {{10}^{9}}{{C}^{2}}/N{{m}^{2}}\]

    View Answer play_arrow
  • question_answer3) Which of the following is not the unit of energy?

    A) Calorie

    B) Joule

    C) Electron-volt

    D) Watt

    View Answer play_arrow
  • question_answer4) A body moves with a uniform acceleration\[a\]and zero initial velocity. Another body\[B\]starts from the same point moves in the same direction with a constant velocity\[v\]. The two bodies meet after a time\[t\]. The value of\[t\]is

    A) \[\frac{2v}{a}\]

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

    C) \[\frac{v}{2a}\]

    D) \[\sqrt{\frac{v}{2a}}\]

    View Answer play_arrow
  • question_answer5) A body starts to fall freely under gravity. The distances covered by it in first, second and third seconds are in ratio

    A) \[1:3:5\]

    B) \[1:2:3\]

    C) \[1:4:9\]

    D) \[1:5:6\]

    View Answer play_arrow
  • question_answer6) Galileo writes that for angles of projection of a projectile at angles\[({{45}^{o}}+\theta )\]and\[({{45}^{o}}-\theta )\], the horizontal ranges described by the projectile are in the ratio

    A) \[2:1\]

    B) \[1:2\]

    C) \[1:1\]

    D) \[2:3\]

    View Answer play_arrow
  • question_answer7) Two masses\[M\]and\[m\]are attached to a vertical axis by weightless thread of combined length\[l.\] They are set in rotational motion in a horizontal plane about this axis with constant angular velocity\[\omega \]. If the tensions in the thread are same during motion, the distance of M from the axis is,

    A) \[\frac{Ml}{M+m}\]

    B) \[\frac{ml}{M+m}\]

    C) \[\frac{M+m}{M}l\]

    D) \[\frac{M+m}{m}l\]

    View Answer play_arrow
  • question_answer8) A uniform rope of length L, resting on a frictionless horizontal surface, is pulled at one end by a force F. The tension in the rope at a distance I from this end is

    A) \[F\]

    B) \[\frac{l}{L}F\]

    C) \[\frac{L}{l}F\]

    D) \[\left( 1-\frac{l}{L} \right)F\]

    View Answer play_arrow
  • question_answer9) A body of mass \[5kg\] is moving with a momentum of\[10\,kg\,m/s\]. A force of\[0.2\,\,N\]acts on it in the direction of motion of the body for 10 s. The increase in its kinetic energy is

    A) \[2.8\,\,J\]

    B) \[3.2\,\,J\]

    C) \[3.8\,\,J\]

    D) \[4.4\,\,J\]

    View Answer play_arrow
  • question_answer10) The potential energy of a weightless spring compressed by a distance a is proportional to

    A) \[a\]

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

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

    D) \[{{a}^{0}}\]

    View Answer play_arrow
  • question_answer11) A thin circular ring of mass\[M\]and radius\[r\]is rotating about its axis with constant angular velocity\[\omega \]. Two objects each of mass\[m\], are placed gently at the opposite ends of diameter of the ring. The ring now rotates with an angular velocity

    A) \[\omega M/(M+m)\]

    B) \[\omega M/(M+2m)\]

    C) \[\omega (M-2m)/(m+2M)\]

    D) \[\omega (M+2m)/M\]

    View Answer play_arrow
  • question_answer12) A wheel is rotating at\[900\,\,rpm\]about its axis. When the power is cut off it comes to rest in\[1\min \]. The angular retardation in\[rad/{{s}^{2}}\]is

    A)

    B) \[\pi /2\]

    C) \[\pi /6\]

    D) \[\pi /8\]

    View Answer play_arrow
  • question_answer13) In a photoelectric experiment, the. Stopping potential for incident light of wavelength \[4000\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] is \[2\,V\] . If the wavelength is changed to\[3000\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\], the stopping potential is

    A) \[2\,\,V\]

    B) less than\[2\,\,V\]

    C) more than\[2\,\,V\]

    D) zero

    View Answer play_arrow
  • question_answer14) The wavelength of the most energetic\[X-\]ray emitted when a metal target is bombarded by \[100\text{ }keV\] electrons, is approximately

    A) \[12\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

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

    C) \[0.31\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) \[0.124\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    View Answer play_arrow
  • question_answer15) The wavelength of the first line of Balmer series is\[6563\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]. The Rydberg constant for hydrogen is about

    A) \[1.09\times {{10}^{7}}\text{per}\,\,m\]

    B) \[1.09\times {{10}^{8}}\text{per}\,\,m\]

    C) \[1.09\times {{10}^{9}}\text{per}\,\,m\]

    D) \[1.09\times {{10}^{5}}\text{per}\,\,m\]

    View Answer play_arrow
  • question_answer16) \[200\,\,MeV\]of energy may be obtained per fission of\[{{U}^{235}}\]. A reactor is generating\[1000kW\]of power. The rate of nuclear fission in the reaction (in per second) is

    A) \[1000\]

    B) \[2\times {{10}^{8}}\]

    C) \[3.125\times {{10}^{16}}\]

    D) \[931\]

    View Answer play_arrow
  • question_answer17) \[N\]atoms of a radioactive element emit\[n-\]alpha particles per second. The half-life of the element is

    A) \[\frac{n}{N}\text{second}\]

    B) \[\frac{N}{n}\text{second}\]

    C) \[\frac{0.693n}{n}\text{second}\]

    D) \[\frac{0.693n}{N}\text{second}\]

    View Answer play_arrow
  • question_answer18) The depletion layer of a\[p-n\]junction

    A) is of constant width irrespective of the bias

    B) acts like an insulating zone under reverse bias

    C) has a width that increases with an increase in forward bias

    D) is depleted of ions

    View Answer play_arrow
  • question_answer19) An oscillator is basically an amplifier with gain

    A) less than unity

    B) more than unity

    C) zero

    D) 0.5

    View Answer play_arrow
  • question_answer20) A charge of\[5\,\,C\] experiences a force of\[5000\,\,N\]when it is kept in a uniform electric field. What is the potential difference between two points separated by a distance of\[1\,\,cm\]?

    A) \[10\,\,V\]

    B) \[250\,\,V\]

    C) \[1000\,\,V\]

    D) \[2500\,\,V\]

    View Answer play_arrow
  • question_answer21) In the given circuit if point\[C\]is connected to the earth and a potential of\[+2000\,\,V\]is given to the point\[A\], the potential at\[B\]is

    A) \[1500\,\,V\]

    B) \[1000\,\,V\]

    C) \[500\,\,V\]

    D) \[400\,\,V\]

    View Answer play_arrow
  • question_answer22) A string vibrates according to the equation \[y=5\sin \left( \frac{2\pi x}{3} \right)\cos 20\pi t\]where\[x\]and\[y\]are in cm and t in second. The distance between two adjacent nodes is

    A) \[3cm\]

    B) \[4.5cm\]

    C) \[6cm\]

    D) \[1.5cm\]

    View Answer play_arrow
  • question_answer23) A single slit is located effectively at infinity in front of a lens of focal length\[1\,\,m\]and it is illuminated normally with light of wavelength\[600\,\,nm\]. The first minima on either side of central maximum are separated by\[4\,\,mm\]. Width of the slit is

    A) \[0.1mm\]

    B) \[0.2mm\]

    C) \[0.3mm\]

    D) \[0.4mm\]

    View Answer play_arrow
  • question_answer24) Light wave is travelling along \[y-\]direction. If the corresponding\[\mathbf{E}\]vector at any time is along the \[x-\]axis, the direction of \[\mathbf{B}\] vector at that time is along

    A) \[y-\]axis

    B) \[x-\]axis

    C) \[z-\]axis

    D) \[-z-\]axis

    View Answer play_arrow
  • question_answer25) An equiconvex lens of glass of focal length\[0.1m\]is cut along a plane perpendicular to principal axis into two equal parts. The ratio of focal lengths of new lenses formed is

    A) \[1:1\]

    B) \[1:2\]

    C) \[2:1\]

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

    View Answer play_arrow
  • question_answer26) Time taken by light to cross a slab of thickness of\[4mm\]and refractive index 3 will be

    A) \[4\times {{10}^{-11}}s\]

    B) \[2\times {{10}^{-11}}s\]

    C) \[16\times {{10}^{-11}}s\]

    D) \[8\times {{10}^{-30}}s\]

    View Answer play_arrow
  • question_answer27) The value of the horizontal component of the earths magnetic field and angle of dip are\[1.8\times {{10}^{-5}}Wb/{{m}^{2}}\]and\[{{30}^{o}}\], respectively at some place. The total intensity of earths magnetic field at that place will be.

    A) \[2.08\times {{10}^{-5}}Wb/{{m}^{2}}\]

    B) \[3.67\times {{10}^{-5}}Wb/{{m}^{2}}\]

    C) \[3.18\times {{10}^{-5}}Wb/{{m}^{2}}\]

    D) \[5.0\times {{10}^{-5}}Wb/{{m}^{2}}\]

    View Answer play_arrow
  • question_answer28) A generator produces a voltage that is given by\[V=240\sin 120t\]volt, where t is in seconds. The frequency and\[\text{rms}\]voltage are

    A) \[60Hz\]and\[240V\]

    B) \[19Hz\]and\[120V\]

    C) \[19Hz\]and\[170V\]

    D) \[754Hz\]and\[170V\]

    View Answer play_arrow
  • question_answer29) The pole pieces of the magnet used in a pivoted coil galvanometer are

    A) plane surfaces of a bar magnet

    B) plane surface of a horse-shoe magnet

    C) cylindrical surfaces of a bar magnet

    D) cylindrical surfaces of a horse-shoe magnet

    View Answer play_arrow
  • question_answer30) A\[50\,\,V\]potential difference is suddenly applied to a coil with\[L=5\times {{10}^{-2}}\]and\[R=180\Omega \]. The rate of increase of current after\[0.001s\]is

    A) \[27.3\,\,A/s\]

    B) \[27.8\,\,A/s\]

    C) \[2.73\,\,A/s\]

    D) \[2.78\,\,A/s\]

    View Answer play_arrow
  • question_answer31) A metal wire of specific resistance\[64\times {{10}^{-6}}\Omega cm\]and length \[198cm\] has a resistance of\[7\Omega \]. The radius of the wire will be

    A) \[2.4cm\]

    B) \[0.24cm\]

    C) \[0.024\text{ }cm\]

    D) \[24cm\]

    View Answer play_arrow
  • question_answer32) An electric heater, kept in vacuum, is heated continuously by passing electric current. Its temperature

    A) will go on rising with time

    B) will stop rising after sometime as it will loose heat to the surroundings by conduction

    C) will rise for sometime and thereafter will start falling

    D) will become constant after sometime because of loss of heat due to radiation

    View Answer play_arrow
  • question_answer33) Two straight parallel wires both carrying\[10\,\,A\]current in the same direction attracts each other with a force of\[1\times {{10}^{-3}}\,\,N\]. If both currents are doubled, the force of attraction will be

    A) \[1\times {{10}^{-3}}N\]

    B) \[2\times {{10}^{-3}}N\]

    C) \[4\times {{10}^{-3}}N\]

    D) \[0.25\times {{10}^{-3}}N\]

    View Answer play_arrow
  • question_answer34) A torch battery consisting of two cells of\[1.45\,\,V\]and an internal resistance\[0.15\Omega \], each cell sending current through the filament of the lamps having resistance\[1.5\Omega \]. The value of current will be

    A) \[16.11\,\,A\]

    B) \[1.611\,\,A\]

    C) \[0.1611\,\,A\]

    D) \[2.6\,\,A\]

    View Answer play_arrow
  • question_answer35) An external resistance\[R\]is connected with a battery of \[emf\,\,V\] and internal resistance\[r\]. Then heat produced in resistance \[R\] will be maximum, if value of \[R\] is

    A) \[r\]

    B) \[r/2\]

    C) \[2r\]

    D) infinite

    View Answer play_arrow
  • question_answer36) Two thin long parallel wires separated by a distance \[r\] carry equal currents\[i\]. The magnitude of the force per unit length exerted by one wire .on the other wire will be

    A) \[{{\mu }_{0}}i/2\pi r\]

    B) \[{{\mu }_{0}}{{i}^{2}}/{{r}^{2}}\]

    C) \[{{\mu }_{0}}{{i}^{2}}/2\pi r\]

    D) \[{{\mu }_{0}}i/{{r}^{2}}\]

    View Answer play_arrow
  • question_answer37) The expression for thermo \[emf\] in a thermocouple is given by the relation\[E=40\,\,\theta -\frac{{{\theta }^{2}}}{20}\] When \[\theta \] is the temperature difference of two junction. For this the neutral temperature will be

    A) \[{{400}^{o}}C\]

    B) \[{{300}^{o}}C\]

    C) \[{{200}^{o}}C\]

    D) \[{{100}^{o}}C\]

    View Answer play_arrow
  • question_answer38) The \[X-\]ray tube is operated at\[50\,\,kV\]. The minimum wavelength produce is

    A) \[0.5\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[0.75\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    C) \[0.25\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) \[1.0\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    View Answer play_arrow
  • question_answer39) Bulk modulus of water is\[2\times {{10}^{9}}N/{{m}^{2}}\]. The change in pressure required to increase the density of water by 0.1 % is

    A) \[2\times {{10}^{9}}N/{{m}^{2}}\]

    B) \[2\times {{10}^{8}}N/{{m}^{2}}\]

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

    D) \[2\times {{10}^{4}}N/{{m}^{2}}\]

    View Answer play_arrow
  • question_answer40) A cyclotron can accelerate

    A) \[\beta -\]particle

    B) \[\alpha -\]particle

    C) high-velocity gamma rays

    D) high velocity X-rays

    View Answer play_arrow
  • question_answer41) The diameter of a flywheel is increased by 1%. Increase in its moment of inertia about the central axis is

    A) \[1%\]

    B) \[0.5%\]

    C) \[2%\]

    D) \[4%\]

    View Answer play_arrow
  • question_answer42) The ratio of the specific charge of an electron to that of an \[\text{ }\!\!\alpha\!\!\text{ -}\]particle is

    A) \[1:2\]

    B) \[1:\frac{1}{4}\]

    C) \[1:4\]

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

    View Answer play_arrow
  • question_answer43) A particular star assuming it as a black body has a surface temperature of about\[5\times {{10}^{4}}K\]. The wavelength in nanometre at which its radiation becomes maximum is\[(b=0.0029\,\,m/c)\]

    A) 48

    B) 58

    C) 60

    D) 70

    View Answer play_arrow
  • question_answer44) Which of the following can cause the null point of a potentiometre to shift beyond the wire?

    A) Shorter length of wire

    B) Longer length of wire

    C) Low\[emf\]of auxiliary battery

    D) High\[emf\]of auxiliary battery

    View Answer play_arrow
  • question_answer45) The kinetic energy of an electron is\[5eV\]. Calculate the de-Broglie wavelength associated with it\[(h=6.6\times {{10}^{-34}}J\,\,s,\]\[{{m}_{e}}=9.1\times {{10}^{-31}}kg)\]

    A) \[5.47\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[10.9\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    C) \[2.7\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) None of the above

    View Answer play_arrow
  • question_answer46) A ray of light is incident at polarising angle such that its deviation is \[{{24}^{o}}\], then angle of incidence is

    A) \[{{24}^{o}}\]

    B) \[{{57}^{o}}\]

    C) \[{{66}^{o}}\]

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

    View Answer play_arrow
  • question_answer47) A particle of mass m is projected with velocity\[v\]making an angle of \[{{45}^{o}}\] with the horizontal. When the particle lands on the level ground the magnitude of the change in its momentum will be

    A) \[2\,\,mv\]

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

    C) \[mv\sqrt{2}\]

    D) zero

    View Answer play_arrow
  • question_answer48) A Carnot engine takes heat from a reservoir at\[{{627}^{o}}C\]and rejects heat to a sink at\[{{27}^{o}}C\]. Its efficiency will be

    A) \[\frac{3}{5}\]

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

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

    D) \[\frac{200}{209}\]

    View Answer play_arrow
  • question_answer49) If\[{{r}_{1}}\]and\[{{r}_{2}}\]are the radii of the atomic nuclei of mass number 64 and 125 respectively, then the ratio\[\left( \frac{{{r}_{1}}}{{{r}_{2}}} \right)\]is

    A) \[\frac{64}{125}\]

    B) \[\sqrt{\frac{64}{125}}\]

    C) \[\frac{5}{4}\]

    D) \[\frac{4}{5}\]

    View Answer play_arrow
  • question_answer50) The working of which of the following is similar to that of a slide projector?

    A) Electron microscope

    B) Scanning electron microscope

    C) Transmission electron microscope

    D) Atomic force microscope

    View Answer play_arrow
  • question_answer51) Which of the following compounds are tranquilizer on the basis of their medicinal properties?

    A) Chloramphenicol

    B) Seconal

    C) Luminal

    D) Both (b) and (c)

    View Answer play_arrow
  • question_answer52) In alkaline earth metal sulphates, the value of hydration energy decreases down the group because of the

    A) decrease in size

    B) increase in size

    C) greater lattice energy

    D) None of the above

    View Answer play_arrow
  • question_answer53) Which of the following is used in the preparation of chlorine?

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

    B) Only\[KMn{{O}_{4}}\]

    C) Both\[Mn{{O}_{2}}\]and\[KMn{{O}_{4}}\]

    D) Either\[Mn{{O}_{2}}\]or\[KMn{{O}_{4}}\]

    View Answer play_arrow
  • question_answer54) Which of the following configuration is associated with biggest jump between 2nd and 3rd\[IE\]?

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

    B) \[1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}},\,\,3{{s}^{1}}\]

    C) \[1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}},\,\,3{{s}^{2}}\]

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

    View Answer play_arrow
  • question_answer55) Calculate\[\Delta {{G}^{o}}\]for conversion of oxygen to ozone,\[\frac{3}{2}{{O}_{2}}(g)\xrightarrow{{}}{{O}_{3}}(g)\]at\[298\,\,K\], if\[{{K}_{p}}\]for this conversion is\[2.47\times {{10}^{-29}}\].

    A) \[163\,\,kJ\,\,mo{{l}^{-1}}\]

    B) \[2.4\times {{10}^{2}}\,\,kJ\,\,mo{{l}^{-1}}\]

    C) \[1.63\,\,kJ\,\,mo{{l}^{-1}}\]

    D) \[2.38\times {{10}^{6}}\,\,kJ\,\,mo{{l}^{-1}}\]

    View Answer play_arrow
  • question_answer56) Which gives only mono substituted product?

    A) \[o-\]dinitrobenzene

    B) \[m-\]dinitrobenzene

    C) \[p-\]dinitrobenzene

    D) Nitrobenzene

    View Answer play_arrow
  • question_answer57) The\[{{K}_{sp}}\]of\[Mg{{(OH)}_{2}}\]is\[1\times {{10}^{-12}}\]. \[0.01M\]\[Mg{{(OH)}_{2}}\]will precipitate at the limited\[pH\]of

    A) 3

    B) 9

    C) 5

    D) 8

    View Answer play_arrow
  • question_answer58) Which of the following transition have minimum wavelength?

    A) \[{{n}_{4}}\to {{n}_{1}}\]

    B) \[{{n}_{2}}\to {{n}_{1}}\]

    C) \[{{n}_{4}}\to {{n}_{2}}\]

    D) \[{{n}_{3}}\to {{n}_{1}}\]

    View Answer play_arrow
  • question_answer59) \[C{{H}_{3}}COOH\]is reacted with\[CH\equiv CH\]in presence of\[H{{g}^{2+}}\]the product is

    A) \[\underset{\begin{smallmatrix} | \\ C{{H}_{2}} \end{smallmatrix}}{\mathop{C{{H}_{2}}}}\,(OOC{{H}_{3}})\]

    B) \[\underset{\begin{smallmatrix} | \\ C{{H}_{2}}-(OOC-C{{H}_{3}}) \end{smallmatrix}}{\mathop{C{{H}_{3}}}}\,\]

    C) \[{{\underset{\begin{smallmatrix} | \\ CH-(OOC-C{{H}_{3}}) \end{smallmatrix}}{\mathop{C{{H}_{3}}}}\,}_{2}}\]

    D) None of the above

    View Answer play_arrow
  • question_answer60) Which of the following metal does not react with the solution of copper sulphate?

    A) \[Fe\]

    B) \[Zn\]

    C) \[Mg\]

    D) \[Ag\]

    View Answer play_arrow
  • question_answer61) The reaction,\[A+B+C\xrightarrow{{}}Z\]occurs by the following mechanism

    (i)\[A+B\to Y\](fast)
    (ii)\[X+C\to Y\](slow)
    (iii) \[Y+B\to Z\](very fast)
    Rate law for this reaction is

    A) \[k[C]\]

    B) \[k[A]{{[B]}^{2}}[C]\]

    C) \[k[Z]\]

    D) \[k[X][Y][Z]\]

    View Answer play_arrow
  • question_answer62) \[\underset{\begin{smallmatrix} -10.7 \\ {{S}^{o}}(298\,\,K) \\ JK\,\,mo{{l}^{-1}} \end{smallmatrix}}{\mathop{{{H}^{+}}(aq)}}\,+O{{H}^{-}}(aq)\xrightarrow{{}}\underset{+70}{\mathop{{{H}_{2}}O}}\,(l)\]Standard entropy change for the above reaction is

    A) \[60.3\,\,J{{K}^{-1}}mo{{l}^{-1}}\]

    B) \[80.7\,\,J{{K}^{-1}}mo{{l}^{-1}}\]

    C) \[-70\,\,J{{K}^{-1}}mo{{l}^{-1}}\]

    D) \[+10.7\,\,J{{K}^{-1}}mo{{l}^{-1}}\]

    View Answer play_arrow
  • question_answer63) Which of the following is an example of coordination isomerism?

    A) \[[Co{{(N{{H}_{3}})}_{3}}{{({{H}_{2}}O)}_{2}}Cl]B{{r}_{2}}\]

    B) \[[Co{{(N{{H}_{3}})}_{6}}][Cr{{({{C}_{2}}{{O}_{4}})}_{3}}]\]

    C) \[[Co{{(N{{H}_{3}})}_{5}}N{{O}_{3}}]S{{O}_{4}}\]

    D) \[[Pt{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]B{{r}_{2}}\]

    View Answer play_arrow
  • question_answer64) Which of the following is threo isomer? \[\underset{(I)}{\mathop{\underset{A}{\mathop{\underset{X-\underset{|}{\overset{|}{\mathop{C-}}}\,Z}{\overset{\begin{smallmatrix} Y \\ | \end{smallmatrix}}{\mathop{X-C-Z}}}\,}}\,}}\,\,\,\,\,\,\,\,\underset{(II)}{\mathop{\underset{A}{\mathop{\underset{Z-\underset{|}{\overset{|}{\mathop{C-}}}\,X}{\overset{\begin{smallmatrix} Y \\ | \end{smallmatrix}}{\mathop{X-C-Z}}}\,}}\,}}\,\,\,\,\,\,\,\,\underset{(III)}{\mathop{\underset{A}{\mathop{\underset{Z-\underset{|}{\overset{|}{\mathop{C-}}}\,X}{\overset{\begin{smallmatrix} Y \\ | \end{smallmatrix}}{\mathop{X-C-Y}}}\,}}\,}}\,\]

    A) Only I

    B) Only II

    C) Only III

    D) All of the above

    View Answer play_arrow
  • question_answer65) The\[IUPAC\]name of\[C{{H}_{3}}CH=CHCOO{{C}_{2}}{{H}_{5}}\]is

    A) ethyl but -1-enoate

    B) ethyl but-2-enoate

    C) ethyl prop-2-enoate

    D) None of the above

    View Answer play_arrow
  • question_answer66) 1-3-butadiene when treated with\[B{{r}_{2}}\]gives

    A) 1, 4-dibromo-2-butene

    B) 1, 3-dibromo-1-butene

    C) 3, 4-dibropio-2-butene

    D) 2, 3-dibromo-2-butene

    View Answer play_arrow
  • question_answer67) In\[NO_{3}^{-}\]ion, the number of bond pair and lone pair of electrons on nitrogen atom are

    A) 2, 2

    B) 3, 1

    C) 1, 3

    D) 3, 0

    View Answer play_arrow
  • question_answer68) Neutral refractories are

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

    B) \[CaO\]

    C) graphite

    D) \[MgO\]

    View Answer play_arrow
  • question_answer69) The method usually employed for the destruction of a colloidal solution is

    A) dialysis

    B) addition of electrolytes

    C) diffusion through animal membrane

    D) condensation

    View Answer play_arrow
  • question_answer70) Which among the following conditions, increase the yield of the product in the equilibrium? \[3A+B\underset{Endothermic}{\mathop{}}\,4C\]

    A) Increase in pressure

    B) Increase in volume

    C) Increase in temperature

    D) Decrease in temperature

    View Answer play_arrow
  • question_answer71) A sugar syrup of weight \[214.2g\] contains \[34.2g\] of sugar. The molar concentration is

    A) \[0.55\]

    B) \[5.5\]

    C) \[55\]

    D) \[0.1\]

    View Answer play_arrow
  • question_answer72) The relation which describes the variation of vapour pressure with temperature is called

    A) Hess law

    B) Arrhenius equation

    C) Kirchoffs law

    D) Clausius-Clapeyron equation

    View Answer play_arrow
  • question_answer73) \[59g\]of an amide obtained from a carboxylic acid,\[RCOOH\], upon heating with alkali liberated \[17g\] of ammonia. Atomic masses of \[C,\,\,H,\,\,N\]and\[O\]are 12, 1, 14 and 16 respectively. The acid is

    A) formic acid

    B) acetic acid

    C) propionic acid

    D) benzoic acid

    View Answer play_arrow
  • question_answer74) The gas evolved in tailing of mercury is

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

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

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

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

    View Answer play_arrow
  • question_answer75) In which of the following ores calcination process is not applicable?

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

    B) \[A{{l}_{2}}{{O}_{3}}\cdot 2{{H}_{2}}O\]

    C) \[CuC{{O}_{3}}\cdot Cu{{(OH)}_{2}}\]

    D) \[ZnS\]

    View Answer play_arrow
  • question_answer76) The reaction,\[{{({{C}_{6}}{{H}_{5}})}_{2}}C=O+C{{H}_{2}}=P{{({{C}_{6}}{{H}_{5}})}_{3}}\xrightarrow[ether]{Dry}\]\[{{({{C}_{6}}{{H}_{5}})}_{2}}C=C{{H}_{2}}+{{({{C}_{6}}{{H}_{5}})}_{3}}PO\], is called

    A) Wittig reaction

    B) Claisen reaction

    C) Benzoin condensation

    D) Perkins reaction

    View Answer play_arrow
  • question_answer77) Which of the following is a plasticizer?

    A) Cresyl phosphate

    B) Ethyl acetate

    C) Phthalic anhydride

    D) Phthalic acid

    View Answer play_arrow
  • question_answer78) The order of decreasing polarity in the compounds\[CaO,\,\,CsF,\,\,KCl,\,\,MgO\]is

    A) \[CaO,\,\,CsF,\,\,KCl,\,\,MgO\]

    B) \[MgO,\,\,KCl,\,\,CaO,\,\,CsF\]

    C) \[KCl,\,\,CaO,\,\,CsF,\,\,MgO\]

    D) \[CsF,\,\,KCl,\,\,CaO,\,\,MgO\]

    View Answer play_arrow
  • question_answer79) Which of the following is a solid compound?

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

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

    C) \[NO\]

    D) \[{{N}_{2}}{{O}_{5}}\]

    View Answer play_arrow
  • question_answer80) Which of the following is incorrect about vulcanisation of rubber?

    A) Vulcanised rubber has excellent elasticity

    B) Vulcanised rubber increases resistance to oxidation and organic solvent

    C) Vulcanisation usually establishes cross links at allylic position type reactive sites

    D) Vulcanised rubber has high-water absorption tendency

    View Answer play_arrow
  • question_answer81) Mark out the correct set of decreasing\[p{{K}_{a}}\]for the following molecules

    A) \[IV>II>III>I\]

    B) \[I>III>II>IV\]

    C) \[IV>III>II>I\]

    D) \[IV>II>I>III\]

    View Answer play_arrow
  • question_answer82) Which one is the most stable carbocation?

    A) \[C{{H}_{2}}FCH_{2}^{+}\]

    B) \[C{{F}_{3}}CH_{2}^{+}\]

    C) \[CC{{l}_{3}}-CH_{2}^{+}\]

    D) \[^{+}C{{F}_{3}}\]

    View Answer play_arrow
  • question_answer83) The correct order of dipole mpmwt is

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

    B) \[N{{F}_{3}}<C{{H}_{4}}<N{{H}_{3}}<{{H}_{2}}O\]

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

    D) \[{{H}_{2}}O<N{{H}_{3}}<N{{F}_{3}}<C{{H}_{4}}\]

    View Answer play_arrow
  • question_answer84) The vapour density of a chloride of a metal is \[81.5\,\,(H=1)\] and the chloride contains \[34.46%\] metal. The specific heat of the metal is\[0.115\]. The molecular formula of chloride is

    A) \[MC{{l}_{2}}\]

    B) \[{{M}_{2}}C{{l}_{3}}\]

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

    D) \[MC{{l}_{4}}\]

    View Answer play_arrow
  • question_answer85) What is the freezing point of a\[10%\](by weight) solution of\[C{{H}_{3}}OH\]in water?

    A) \[-{{6.45}^{o}}C\]

    B) \[-{{5.1}^{o}}C\]

    C) \[{{1.02}^{o}}C\]

    D) \[-{{3.5}^{o}}C\]

    View Answer play_arrow
  • question_answer86) Bohrs radius of 2nd orbit of Be34 is equal to that of

    A) 4th orbit of hydrogen

    B) 2nd orbit of\[H{{e}^{+}}\]

    C) 3rd orbit of\[L{{i}^{2+}}\]

    D) first orbit of hydrogen

    View Answer play_arrow
  • question_answer87) Half-life period of a radioactive element is\[100yr\]. How long will it take for its \[93.75%\] decay?

    A) \[400\,\,yr\]

    B) \[300\,\,yr\]

    C) \[200\,\,yr\]

    D) \[193\,\,yr\]

    View Answer play_arrow
  • question_answer88) Two flasks containing gases\[A\]and\[B\]are interconnected as shown in the figure. The stopper is opened, the gases are allowed to mix homogeneously. The partial pressures of\[A\]and\[B\]in the mixture will be, respectively

    A) 8 and 5 atm

    B) 9.6 and 4 atm

    C) 4.8 and 2 atm

    D) 6.4 and 4 atm

    View Answer play_arrow
  • question_answer89) Aniline is not the major product in one of the following reactions. Identify that reaction

    A) \[{{C}_{6}}{{H}_{5}}OH+N{{H}_{3}}\xrightarrow[{{300}^{o}}C]{ZnC{{l}_{2}}}\]

    B) \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}+Z{{n}_{powder}}\xrightarrow{Alcoholic\,\,KOH}\]

    C) \[{{C}_{6}}{{H}_{5}}Cl+N{{H}_{3}}\xrightarrow[C{{u}_{2}}O,\,high\,\,pressure]{{{200}^{o}}C}\]

    D) \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}+6(H)\xrightarrow[HCl]{Fe+{{H}_{2}}O}\]

    View Answer play_arrow
  • question_answer90) Acetaldehyde forms a white crystalline precipitate on mixing with a ...... solution of

    A) acidic,\[Zn-Hg\]

    B) alcoholic,\[N{{a}_{2}}S{{O}_{3}}\]

    C) saturated aqueous,\[NaHS{{O}_{3}}\]

    D) aqueous,\[NaCl\]

    View Answer play_arrow
  • question_answer91) Which one of the following equations represents Freundlich adsorption isotherm?

    A) \[\frac{x}{m}=Kp\]

    B) \[\frac{x}{m}=K{{p}^{n}}\]

    C) \[\log \frac{x}{m}=K{{p}^{n}}\]

    D) \[\log \frac{x}{m}=Kn\log p\]

    View Answer play_arrow
  • question_answer92) The carbohydrate that will yield glucose and fructose on homogeneous catalytic hydrolysis in presence of dilute sulphuric acid is

    A) cellulose

    B) maltose

    C) starch

    D) sucrose

    View Answer play_arrow
  • question_answer93) Which pair of elements has similar properties?

    A) 13, 31

    B) 11, 20

    C) 12, 10

    D) 21, 33

    View Answer play_arrow
  • question_answer94) Ethylmine can be prepared by the action of bromine and caustic potash on

    A) acetamide

    B) propionamide

    C) form amide

    D) methylcyanide

    View Answer play_arrow
  • question_answer95) Which of the following alkyl halide will react according to\[{{S}_{N}}1\]mechanism?

    A) 1-chloropentane

    B) 2-methyl-2-chloropentane

    C) neo-pentyl chloride

    D) 2-chloropentane

    View Answer play_arrow
  • question_answer96) In a balanced equation,\[{{H}_{2}}S{{O}_{4}}+xHI\xrightarrow{{}}{{H}_{2}}S+y{{I}_{2}}+z{{H}_{2}}O\]the value of\[x,\,\,y\]and\[z\]are respectively

    A) 3, 5, 2

    B) 4, 8, 5

    C) 8, 4, 4

    D) 5, 3, 4

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

    A) \[La{{(OH)}_{3}}\]is less basic than\[Lu{{(OH)}_{3}}\]

    B) In lanthanide series, ionic radius of Lu^ ion decreases

    C) \[La\]is actually an element of transition series rather lanthanide

    D) Atomic radius of\[Zr\]and\[Hf\]are same because of lanthanide contraction

    View Answer play_arrow
  • question_answer98) Diethyl ether on heating with cone. \[HI\]gives two moles of

    A) ethyl iodide

    B) ethanol

    C) iodoform

    D) methyl iodide

    View Answer play_arrow
  • question_answer99) Which of the following is reducing agent?

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

    B) \[Zn+HCl\]

    C) \[Sn+HCl\]

    D) All of these

    View Answer play_arrow
  • question_answer100) The brass is an alloy of

    A) gold and copper

    B) silver and zinc

    C) copper and zinc

    D) copper and aluminium

    View Answer play_arrow
  • question_answer101) The Devonian period is considered to be as age of

    A) fishes

    B) amphibians

    C) reptiles

    D) mammals

    View Answer play_arrow
  • question_answer102) Which of the following show paleontological evidence for evolution?

    A) Darwin finches

    B) Duck-billed platypus

    C) Archaeopteryx

    D) Biston betularia

    View Answer play_arrow
  • question_answer103) Kingdom -Plantae was divided into ......... divisions by Engler and Pranti

    A) 10

    B) 11

    C) 13

    D) 14

    View Answer play_arrow
  • question_answer104) Which one of the following is a disease causing bacterium in human beings?

    A) E. coli

    B) Xanthomonas citri

    C) TMV

    D) Pilobolus

    View Answer play_arrow
  • question_answer105) Schizogony of Plasmodium is also called as

    A) sporogony

    B) gamogony

    C) agamogony

    D) binary fission

    View Answer play_arrow
  • question_answer106) Dum-dum fever is caused by

    A) Leishmania tropica

    B) Leishmania donovani

    C) Trypanosoma evansi

    D) None of the above

    View Answer play_arrow
  • question_answer107) The retort cells are found in the stem of

    A) Sphagnum

    B) Poly trichum

    C) Funaria

    D) Pogonatum

    View Answer play_arrow
  • question_answer108) Nervous system is first formed in

    A) platyhelminthes

    B) cnidarian

    C) annelids

    D) sponges

    View Answer play_arrow
  • question_answer109) The resin duct of a gymnosperm stem is an example of

    A) schizogenous cavity

    B) lysigenous cavity

    C) big vacuole

    D) intercellular space

    View Answer play_arrow
  • question_answer110) Which among dicotyledons are considered to have primitive genera?

    A) Papilionaceae

    B) Cucurbitaceae

    C) Magnoliaceae

    D) Rosaceae

    View Answer play_arrow
  • question_answer111) Enterocoelom appeared first in the course of evolution in

    A) Echinodermata

    B) Annelida

    C) Chordata

    D) Aschelminthes

    View Answer play_arrow
  • question_answer112) The generic name of brain coral is

    A) Fungia

    B) Meandrina

    C) Madrepora

    D) Astraea

    View Answer play_arrow
  • question_answer113) The secondary host in the case of blood fluke is

    A) snail

    B) pig

    C) man

    D) sand fly

    View Answer play_arrow
  • question_answer114) The secretory as well as excretory cells of plants are

    A) cells of oil glands

    B) hydathode

    C) latex cells

    D) None of these

    View Answer play_arrow
  • question_answer115) The plasma membrane of mycoplasma is rich in

    A) cellulose

    B) myosin

    C) myosin

    D) glycogen

    View Answer play_arrow
  • question_answer116) Purgative to expel Ascaris is

    A) oil of Chenopodium

    B) tetrachlorethylene

    C) hexylresorcinol

    D) All of the above

    View Answer play_arrow
  • question_answer117) The repeating unit in glycogen is

    A) glucose

    B) fructose

    C) galactose

    D) cellulose

    View Answer play_arrow
  • question_answer118) Which one is a marine leech?

    A) Spiunculus

    B) Pontobdella

    C) Hirudo

    D) Polygordius

    View Answer play_arrow
  • question_answer119) The general body plan and body symmetry are similar in

    A) frog and lofcust

    B) sea horse and star fish

    C) annelids and sponge

    D) pigeon and liver fluke

    View Answer play_arrow
  • question_answer120) Which one is not a carp?

    A) Labeo

    B) Catia catia

    C) Mystus

    D) Cyprinus

    View Answer play_arrow
  • question_answer121) Endo peptidase of plant kingdom is

    A) trysin

    B) pepsin

    C) papain

    D) urease

    View Answer play_arrow
  • question_answer122) One of the following cells can divide by meiosis

    A) sporocyte

    B) meiocyte

    C) primary spermatocyte and primary oocyte

    D) All of the above

    View Answer play_arrow
  • question_answer123) Mutations brings about......... change.

    A) small

    B) large

    C) negligible

    D) All of these

    View Answer play_arrow
  • question_answer124) Chromosome complement with\[2n-1\]is called

    A) monosomy

    B) trisomy

    C) nullisomy

    D) tetrasomy

    View Answer play_arrow
  • question_answer125) Interferon is the bodys first line of defence against......... attacks.

    A) viral

    B) bacterial

    C) protozoan

    D) All of these

    View Answer play_arrow
  • question_answer126) One of them is recently domestic carnivore

    A) cat

    B) dog

    C) polar hear

    D) camel

    View Answer play_arrow
  • question_answer127) Dolichos lablab is a

    A) Straggler

    B) climber

    C) twiner

    D) runner

    View Answer play_arrow
  • question_answer128) Sweat glands are scanty in

    A) man

    B) rabbit

    C) polar bear

    D) elephant

    View Answer play_arrow
  • question_answer129) In sugarcane, the adventitious roots are called

    A) prop roots

    B) prop and tuberous roots

    C) pneumatophores

    D) None of the above

    View Answer play_arrow
  • question_answer130) In tamarind, the pinnate leaf is

    A) bipinnate

    B) tripinnate

    C) peripinnate

    D) imperipinnate

    View Answer play_arrow
  • question_answer131) Camouflage of Chameleon is associated with

    A) chromosome

    B) chromomere

    C) chromoplast

    D) chromatophore

    View Answer play_arrow
  • question_answer132) Which of these is the place of cellulose digestion in numinants?

    A) Rumen

    B) Reticulum

    C) Omassum

    D) Abomassum

    View Answer play_arrow
  • question_answer133) Cyathjum and hypanthodium resemble each other in possessing

    A) involucre

    B) dioecious nature

    C) receptacle

    D) None of these

    View Answer play_arrow
  • question_answer134) Vital capacity of lungs is

    A) Inspiratory Reserve Volume (IRV) + Expiratory Reserve Volume (ERV) + Tidal Volume (TV) + Residual Volume (RV)

    B) IRV + ERV + TV

    C) IRV + ERV

    D) IRV + ERV + TV - RV

    View Answer play_arrow
  • question_answer135) Spiral valve is present in

    A) right auricle

    B) sinus venosus

    C) truncus arteriosus

    D) right ventricle

    View Answer play_arrow
  • question_answer136) Edible part of mango is

    A) epicarp

    B) mesocarp

    C) thalamus

    D) endocarp

    View Answer play_arrow
  • question_answer137) Smallest parasitic plant with two cotyledons in the seed is

    A) Lemna

    B) Wolffia

    C) Arceuthobium

    D) None of these

    View Answer play_arrow
  • question_answer138) Inflorescence of Liliaceae is

    A) Zygomorphic

    B) trimerous

    C) pentamerous

    D) imperfect

    View Answer play_arrow
  • question_answer139) The presence of cuticle in arthropods indicate

    A) metamorphosis

    B) moulting

    C) aquatic environment

    D) None of the above

    View Answer play_arrow
  • question_answer140) Autonomy, a phenomenon is well marked in

    A) annelids

    B) arthropods

    C) mollusc

    D) Echinodermata

    View Answer play_arrow
  • question_answer141) Cotton fibre is part of

    A) epidermal tissue system

    B) vascular tissue system

    C) meristematic tissue system

    D) ground tissue system

    View Answer play_arrow
  • question_answer142) Hyperparasite is

    A) which kills host

    B) which completes life cycle in ones host

    C) which uses body of host to reproduce

    D) None of the above

    View Answer play_arrow
  • question_answer143) Actively moving animal organisms in any aquatic systems are

    A) benthic

    B) phytoplanktons

    C) nectons

    D) zooplanktons

    View Answer play_arrow
  • question_answer144) How deep is photic or euphotic zone from the upper surface of sea?

    A) 10 m

    B) 100 m

    C) 200 m

    D) 500 m

    View Answer play_arrow
  • question_answer145) Heavy metals are detoxified in plants by

    A) ABA

    B) all elopathins

    C) phytochelatins

    D) phytoalexins

    View Answer play_arrow
  • question_answer146) If the number of a species increase in any national park it can be due to

    A) intraspecific competition

    B) interspecific competition

    C) emigration

    D) mutualism

    View Answer play_arrow
  • question_answer147) The concept of genetic drift was introduced by

    A) Hardy Weinberg

    B) Sewall Wright

    C) GG Simpson

    D) Julian Huxley

    View Answer play_arrow
  • question_answer148) Which one among the following chemicals is used for preventing defoliation of forest trees?

    A) AMO - 1618

    B) Phosphon D

    C) Malic hydrazide

    D) 2, 4-D

    View Answer play_arrow
  • question_answer149) The angiosperm showing symbiotic association with blue green algae is

    A) Lens

    B) Cyamopsis

    C) Trifolium

    D) None of these

    View Answer play_arrow
  • question_answer150) Sago which we use as food comes from this plant

    A) Calamus ritung

    B) Metroxylon rumphii

    C) Areca catechu

    D) Phoenix dactylifera

    View Answer play_arrow
  • question_answer151) Which one is the hardest wood?

    A) Shorea robusta

    B) Tectona grandis

    C) Cedrus deodara

    D) Dalbergia sissoo

    View Answer play_arrow
  • question_answer152) Medium used in culturing hybridoma cells is

    A) HAT

    B) HAP

    C) TAP

    D) TAC

    View Answer play_arrow
  • question_answer153) Agar is obtained from

    A) bacteria

    B) blue-green algae

    C) red algae

    D) brown algae

    View Answer play_arrow
  • question_answer154) Against which foreign organism (antigen) antibiotic is most effective?

    A) Virus

    B) Bacteria

    C) Fungal infection

    D) Protozoan infection

    View Answer play_arrow
  • question_answer155) Toxin produced by plants are

    A) phytoalexins

    B) phytochrome

    C) phytoferritin

    D) phytotoxins

    View Answer play_arrow
  • question_answer156) Which disease is not caused by triple antigens?

    A) Tetanus

    B) Diphtheric

    C) Whooping cough

    D) Typhoid

    View Answer play_arrow
  • question_answer157) Glaucoma is caused due to

    A) opacity of lens

    B) increase in size of eye ball

    C) canal of Schlemn is blocked

    D) vitreous humour becomes dry

    View Answer play_arrow
  • question_answer158) Which cranial nerve controls the heart muscles?

    A) Facial

    B) Vagus

    C) Auditory

    D) Trochlear

    View Answer play_arrow
  • question_answer159) Corolloid roots of Cycas has

    A) Anabaena

    B) My corrhiza

    C) Rhizobium

    D) Azotobacter

    View Answer play_arrow
  • question_answer160) The sun loving plants are referred to as

    A) halophytes

    B) heliophytes

    C) heterotrophs

    D) sciophytes

    View Answer play_arrow
  • question_answer161) Die back of citrus and reclamation of legumes and cereals is due to deficiency of

    A) copper

    B) zinc

    C) sodium

    D) molybdenum

    View Answer play_arrow
  • question_answer162) Which enzyme fixes\[C{{O}_{2}}\]in Calvin cycle?

    A) RuBP carboxylase

    B) PEP carboxylase

    C) carbonic anhydrase

    D) hexokinase

    View Answer play_arrow
  • question_answer163) In which of the following are orchreate stipules found?

    A) Cruciferae

    B) Papilionaceae

    C) Compositae

    D) Polygonaceae

    View Answer play_arrow
  • question_answer164) Surfactant in alveoli is secreted by

    A) dust cells

    B) type I epithelial cells

    C) type II epithelial cells

    D) Kupffer cells

    View Answer play_arrow
  • question_answer165) Which one is not fully formed in birds?

    A) Pectoral girdle

    B) Pelvic girdle

    C) Hind limb

    D) Forelimb

    View Answer play_arrow
  • question_answer166) Cells of Deiter occur in

    A) utriculus

    B) retina of eyes

    C) organ of Corti

    D) sebaceous glands

    View Answer play_arrow
  • question_answer167) Epinephrine is

    A) clusters of glomeruli in mammalian kidney

    B) nephrostomal part of mesoderm

    C) hormone of the adrenal gland

    D) frontal lobe of nephridia

    View Answer play_arrow
  • question_answer168) Plumose stigma is adaptation for

    A) hydrophily

    B) ornithophily

    C) zoophily

    D) anemophily

    View Answer play_arrow
  • question_answer169) Embryo sac is

    A) megaspore

    B) micro gametophyte

    C) female gametophyte

    D) megasporangium

    View Answer play_arrow
  • question_answer170) Middle piece of a mammalian sperm contains

    A) nucleus

    B) centriole

    C) mitochondria

    D) vacuole

    View Answer play_arrow
  • question_answer171) The type of immunoglobulin present in the foetus are

    A) \[IgD\]

    B) \[IgE\]

    C) \[IgG\]

    D) \[IgM\]

    View Answer play_arrow
  • question_answer172) One of the following controls the population from going beyond its limits

    A) carrying capacity

    B) environmental resistance

    C) family planning programme

    D) shortage of food supply

    View Answer play_arrow
  • question_answer173) Viroids differ from viruses in being

    A) naked RNA molecules only

    B) naked DNA molecules

    C) naked DNA packaged with viral genome

    D) satellite RNA packaged with viral genome

    View Answer play_arrow
  • question_answer174) The codon for anticodon 3UUAS is

    A) 5AAUS

    B) 3AAU57

    C) 5AAT3

    D) 3AAGS

    View Answer play_arrow
  • question_answer175) Pureline breed refers to

    A) homozygosity

    B) heterozygosity

    C) homozygosity with only dominant genes

    D) heterozygosity and linkage

    View Answer play_arrow
  • question_answer176) Major function of mitochondria in a cell is

    A) secretion

    B) excretion

    C) osmoregulation

    D) fat synthesis

    View Answer play_arrow
  • question_answer177) Feet in King fisher are modified for

    A) walking

    B) perching

    C) running

    D) catching

    View Answer play_arrow
  • question_answer178) Echinoderms are exclusively

    A) marine

    B) riverine

    C) esturine

    D) fresh water

    View Answer play_arrow
  • question_answer179) Instead of seta in capsule of Sphagnum the structure present in

    A) columella

    B) pseudopodium

    C) haustoria

    D) root

    View Answer play_arrow
  • question_answer180) Kappa particles in Paramecium aurelia making killer traits were discovered by

    A) Hill

    B) Sonneborn

    C) Rosenh of

    D) Morgan

    View Answer play_arrow
  • question_answer181) Dodder can transmit

    A) mycoplasmal disease

    B) viral diseases

    C) Both (a) and (b)

    D) None of the above

    View Answer play_arrow
  • question_answer182) Acquired characters are

    A) inherited

    B) artificial

    C) superficial

    D) All of these

    View Answer play_arrow
  • question_answer183) Sexual selection in Darwins theory was the

    A) weakest part

    B) strong part

    C) strongest part

    D) None of the above

    View Answer play_arrow
  • question_answer184) The statement All biological catalysts are proteins is no more valid because of the discovery of

    A) ribonuclease

    B) ribozymes

    C) lysozymes

    D) enzymes

    View Answer play_arrow
  • question_answer185) From the given pair of proteins where both members of the pair are either structural or functional. Mark the odd pair.

    A) Haemoglobin and myoglobin

    B) Fibrinogen and trypsin

    C) Insulin and glucagon

    D) Keratin and fibrin

    View Answer play_arrow
  • question_answer186) Ethylene is involved in

    A) aerobic respiration

    B) anaerobic respiration

    C) climacteric respiration

    D) fermentation

    View Answer play_arrow
  • question_answer187) Suspensor formation in Sagittaria occurs at ......... celled stage.

    A) 6-10

    B) 4-5

    C) 2-3

    D) single

    View Answer play_arrow
  • question_answer188) Insulin and glucagon are

    A) polypeptides

    B) polysaccharides

    C) polynucleotides

    D) None of the above

    View Answer play_arrow
  • question_answer189) Preganglionic sympathetic fibres are

    A) adrenergic

    B) cholinergic

    C) synergic

    D) hypergonic

    View Answer play_arrow
  • question_answer190) Kranz anatomy is found in

    A) most of monocots

    B) few dicots

    C) Both (a) and (b)

    D) None of the above

    View Answer play_arrow
  • question_answer191) Osphradium of Pila globosa is

    A) chemoreceptor

    B) photoreceptor

    C) thermo receptor

    D) tangoreceptor

    View Answer play_arrow
  • question_answer192) Caudal sensory organs (phasmids) are present in

    A) rotifers

    B) nematomorphs

    C) nematodes

    D) cestodes

    View Answer play_arrow
  • question_answer193) The total number of species belonging to present day gymnosperm is

    A) 1000

    B) 2000

    C) 1500

    D) 722

    View Answer play_arrow
  • question_answer194) It is a copper moss

    A) Bryum

    B) Tortella

    C) Merceya

    D) All of these

    View Answer play_arrow
  • question_answer195) A phage that invades but does not destroy the host is

    A) temperate phage

    B) sexduction

    C) phycophages

    D) virulent phage

    View Answer play_arrow
  • question_answer196) The drug calchicine has inhibitory effect on cell cycle in which stage?

    A) Prophase

    B) Anaphase

    C) Metaphase

    D) Telophase

    View Answer play_arrow
  • question_answer197) Endoparasite worms belong to class

    A) Turbellaria

    B) Trematoda

    C) Cestoda

    D) Encestoda

    View Answer play_arrow
  • question_answer198) Roots are the source of cammercial rubber in the species of

    A) Hevea

    B) Ficus

    C) Taraxacum

    D) Parthenium

    View Answer play_arrow
  • question_answer199) The inherent capacity of a cell to regenerate a new whole organism is called

    A) ontogeny

    B) totipotency

    C) phylogeny

    D) proliferation

    View Answer play_arrow
  • question_answer200) Trypanosoma brucei causes

    A) dysentery

    B) Kala-azar

    C) sleeping sickness in man

    D) a disease of animals

    View Answer play_arrow

   

You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos