Solved papers for Punjab Medical Punjab - MET Solved Paper-2010

done Punjab - MET Solved Paper-2010

  • question_answer1) A circular thin disc of mass\[2kg\]has a diameter\[0.2m\]. Calculate its moment of inertia about an axis passing through the edge and perpendicular to the plane of the disc \[(in\text{ }kg-{{m}^{2}})\].

    A) \[0.01\]

    B) \[0.03\]

    C) \[0.02\]

    D) \[3\]

    View Answer play_arrow
  • question_answer2) In a step-up transformer the voltage in the primary is \[220V\] and die current is\[5A\]. The secondary voltage is found to be\[22000V\]. The current in the secondary (neglect losses) is

    A) \[5A\]

    B) \[50A\]

    C) \[500A\]

    D) \[0.05A\]

    View Answer play_arrow
  • question_answer3) An electron tube was sealed-off during manufacture at a pressure of \[1.2\times {{10}^{-7}}mm\] of mercury at\[{{27}^{o}}C\]. Its volume is \[100c{{m}^{3}}\]. The number of molecules that remain in the tube is

    A) \[2\times {{10}^{16}}\]

    B) \[3\times {{10}^{15}}\]

    C) \[3.86\times {{10}^{11}}\]

    D) \[5\times {{10}^{11}}\]

    View Answer play_arrow
  • question_answer4) The unit of specific conductivity is

    A) \[\Omega c{{m}^{-1}}\]

    B) \[\Omega c{{m}^{-2}}\]

    C) \[{{\Omega }^{-1}}cm\]

    D) \[{{\Omega }^{-1}}c{{m}^{-1}}\]

    View Answer play_arrow
  • question_answer5) If \[70cal\] of heat is required to raise the temperature of 2 mole of an ideal gas at constant pressure from\[{{30}^{o}}C\]to\[{{35}^{o}}C\], then the amount of heat required to raise the temperature of same gas through same range at constant volume is

    A) \[50cal\]

    B) \[70cal\]

    C) \[60cal\]

    D) \[65cal\]

    View Answer play_arrow
  • question_answer6) Power supplied to a particle of mass \[2kg\] varies with time as\[P=3{{t}^{2}}/2\]watt, where t is in second. If velocity of particle at \[t=0\] is\[v=0,\]the velocity of particle at\[t=2s\]will be

    A) \[1m{{s}^{-1}}\]

    B) \[4m{{s}^{-1}}\]

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

    D) \[2\sqrt{2}m{{s}^{-1}}\]

    View Answer play_arrow
  • question_answer7) A short bar magnet placed with its axis at\[{{30}^{o}}\]with a uniform external magnetic field of\[0.16\,T\]experiences a torque of magnitude\[0.032J\]. The magnetic moment of the bar magnet will be

    A) \[0.23\,\,J{{T}^{-1}}\]

    B) \[0.40\,\,J{{T}^{-1}}\]

    C) \[0.80\,\,J{{T}^{-1}}\]

    D) zero

    View Answer play_arrow
  • question_answer8) A bar magnet of length 3 cm has points\[A\]and\[B\]along its axis at distances of \[24cm\] and \[48cm\] on the opposite sides. Ratio of magnetic fields at these points will be

    A) \[8\]

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

    C) \[3\]

    D) \[4\]

    View Answer play_arrow
  • question_answer9) A stone is dropped from a certain height which can reach the ground in 5s. If the stone is stopped after 3 s of its fall and then allowed to fall again, then the time taken by the stone to reach the ground for die remaining distance is

    A) \[2s\]

    B) \[3s\]

    C) \[4s\]

    D) None of these

    View Answer play_arrow
  • question_answer10) Two point-charges \[\pm 10\mu C\] are placed \[5.00mm\] apart, forming an electric dipole. Compute electric field at a point on the axis of the dipole \[15cm\] away from the centre on a line passing through the centre dipole.

    A) \[1.66\times {{10}^{5}}N{{C}^{-1}}\]

    B) \[3.66\times {{10}^{5}}N{{C}^{-1}}\]

    C) \[2.66\times {{10}^{-5}}N{{C}^{-1}}\]

    D) \[2.66\times {{10}^{5}}N{{C}^{-1}}\]

    View Answer play_arrow
  • question_answer11) In an\[AC\]circuit the potential difference V and current i are given respectively by \[V=100\sin (100t)volt\]and\[i=100\sin \left( 100t+\frac{\pi }{3} \right)mA\] The power dissipated in the circuit will be

    A) \[{{10}^{4}}W\]

    B) \[10W\]

    C) \[2.5W\]

    D) \[5W\]

    View Answer play_arrow
  • question_answer12) An inductor\[L,\,\,a\]capacitor of\[20\mu F\]and a resistor of \[10\Omega \] are connected in series with an AC source of frequency\[50Hz\]. If the current is in phase with the voltage, then the inductance of the inductor is

    A) \[2.00H\]

    B) \[0.51H\]

    C) \[1.5H\]

    D) \[0.99H\]

    View Answer play_arrow
  • question_answer13) A rifle shoots a bullet with a muzzle velocity of\[500m{{s}^{-1}}\]at a small target \[50m\] away. To hit the target the rifle must be aimed\[(take\]\[g=10m{{s}^{-2}})\]

    A) exactly at the target

    B) \[10cm\] below the target

    C) \[10cm\] above the target

    D) \[5cm\] above the target

    View Answer play_arrow
  • question_answer14) An \[\alpha -\]particle of mass \[m\] suffers one dimensional elastic collision with a nucleus of unknown mass. After the collision the \[\alpha -\]particle is scattered directly backwards losing\[75%\]of its kinetic energy. Then the mass of the nucleus is

    A) \[m\]

    B) \[2m\]

    C) \[3m\]

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

    View Answer play_arrow
  • question_answer15) Mark the correct one.

    A) Our eyes can distinguish between real and virtual image

    B) Virtual image can also be taken on screen

    C) If the incident rays are converging at a point, then the object is real

    D) None of the above

    View Answer play_arrow
  • question_answer16) A body is suspended from a spring balance kept in a satellite. The reading of the balance is\[{{W}_{1}}\] when the satellite goes in an orbit of radius\[R\] and is\[{{W}_{2}}\]when it goes in an orbit of radius\[2R\]. Which of the following will be correct?

    A) \[{{W}_{1}}={{W}_{2}}\]

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

    C) \[{{W}_{1}}>{{W}_{2}}\]

    D) \[{{W}_{1}}\ne {{W}_{2}}\]

    View Answer play_arrow
  • question_answer17) The force required to separate two glass plates of area\[{{10}^{-2}}{{m}^{2}}\]with a film of water\[0.05mm\] thick between them, is (surface tension of water is\[70\times {{10}^{-3}}N/m\])

    A) \[28N\]

    B) \[14N\]

    C) \[50N\]

    D) \[38N\]

    View Answer play_arrow
  • question_answer18) A body of mass m is placed on the earths surface. It is taken from earths surface to a height\[h=3R\]. The change in gravitational potential energy of the body is

    A) \[\frac{2}{3}mgR\]

    B) \[\frac{3}{4}mgR\]

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

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

    View Answer play_arrow
  • question_answer19) The only property possessed by ferromagnetic substance is

    A) hysteresis

    B) susceptibility

    C) directional property

    D) attracting magnetic substances

    View Answer play_arrow
  • question_answer20) Which logic gate is represented by the following combination of logic gates?

    A) \[OR\]

    B) \[NAND\]

    C) \[AND\]

    D) \[NOR\]

    View Answer play_arrow
  • question_answer21) Minimum light intensity that can be perceived by normal human eye is about\[{{10}^{-10}}Wb\,\,{{m}^{-2}}\]. What is the minimum number of photons of wavelength 660 nm that must enter the pupil in\[1s\]for one to see the object? Area of cross-section of the pupil is\[{{10}^{-4}}{{m}^{2}}\].

    A) \[3.3\times {{10}^{2}}\]

    B) \[3.3\times {{10}^{3}}\]

    C) \[3.3\times {{10}^{4}}\]

    D) \[3.3\times {{10}^{5}}\]

    View Answer play_arrow
  • question_answer22) A thin convergent glass lens \[\mu =1.5\] has a power of\[+5.0D\]. When this lens is immersed in a liquid of refractive index \[{{\mu }_{1}}\] it acts as a diverging lens of focal length\[100cm\]. The value of\[{{\mu }_{l}}\]should be

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

    B) \[\frac{4}{3}\]

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

    D) \[2\]

    View Answer play_arrow
  • question_answer23) The phase difference between two points separated by\[0.8m\], in a wave of frequency\[120Hz\], is\[\frac{\pi }{2}\]. The velocity of wave is

    A) \[720m{{s}^{-1}}\]

    B) \[384m{{s}^{-1}}\]

    C) \[250m{{s}^{-1}}\]

    D) \[1m{{s}^{-1}}\]

    View Answer play_arrow
  • question_answer24) A ball of mass\[m\]and density\[\rho \]is immersed in a liquid of density\[\rho \]at a depth\[h\]and released. To what height will the ball jump up above the surface of liquid? (Neglect the resistance of water and air)

    A) \[h\]

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

    C) \[3h\]

    D) \[2h\]

    View Answer play_arrow
  • question_answer25) Dimensions of resistance in an electrical circuit, in terms of dimensions of mass\[M\], of length\[L\], of time\[T\]and of current\[I\], would be

    A) \[[M{{L}^{2}}{{T}^{-3}}{{I}^{-1}}]\]

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

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

    D) \[[M{{L}^{2}}{{T}^{-3}}{{I}^{-2}}]\]

    View Answer play_arrow
  • question_answer26) The plane of a dip circle is set in the geographic meridian and the apparent dip is\[{{\delta }_{1}}\]. It is then set in a vertical plane perpendicular to the geographic meridian. The apparent dip angle is \[{{\delta }_{2}}\].The decimation\[\theta \]at the plane is

    A) \[\theta ={{\tan }^{-1}}(\tan {{\delta }_{1}}\tan {{\delta }_{2}})\]

    B) \[\theta ={{\tan }^{-1}}(\tan {{\delta }_{1}}+\tan {{\delta }_{2}})\]

    C) \[\theta ={{\tan }^{-1}}\left( \frac{\tan {{\delta }_{1}}}{\tan {{\delta }_{2}}} \right)\]

    D) \[\theta ={{\tan }^{-1}}(\tan {{\delta }_{1}}-\tan {{\delta }_{2}})\]

    View Answer play_arrow
  • question_answer27) A body starts from the origin and moves along the axis such that the velocity at any instant is given by\[v=4{{t}^{3}}-2t\]where t is in second and the velocity is in\[m/s\]. Find the acceleration of the particle when it is at a distance of \[2m\] from the origin.

    A) \[28m{{s}^{-2}}\]

    B) \[22m{{s}^{-2}}\]

    C) \[12m{{s}^{-2}}\]

    D) \[10m{{s}^{-2}}\]

    View Answer play_arrow
  • question_answer28) The resistance of a wire at\[{{20}^{o}}C\]is \[20\Omega \] and at \[{{500}^{o}}C\]is\[60\Omega \]. At which temperature its resistance will be\[25\Omega \]?

    A) \[{{50}^{o}}C\]

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

    C) \[{{70}^{o}}C\]

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

    View Answer play_arrow
  • question_answer29) A voltmeter of resistance\[1000\Omega \]gives full scale deflection when a current of \[100mA\] flows through it. The shunt resistance required across it to enable it to be used as an ammeter reading \[1A\] at full scale deflection is

    A) \[10000\Omega \]

    B) \[9000\Omega \]

    C) \[222\Omega \]

    D) \[111\Omega \]

    View Answer play_arrow
  • question_answer30) A particle having a mass of \[0.5g\] carries a charge of\[2.5\times {{10}^{-8}}C\]. The particle is given an initial horizontal velocity of\[6\times {{10}^{4}}m{{s}^{-1}}\]. The minimum magnitude of the magnetic field that is required so that, particle will keep moving in a horizontal direction is [take\[g=10m{{s}^{-2}}\]]

    A) \[8.46T\]

    B) \[3.33T\]

    C) \[8.64\times {{10}^{-2}}T\]

    D) None of these

    View Answer play_arrow
  • question_answer31) A wire in the form of a circular loop of radius\[r\]lies with its plane normal to a magnetic field\[B.\] If the wire is pulled to take a square shape in the same plane in time\[t\], the emf induced in the loop is given by

    A) \[\frac{\pi B{{r}^{2}}}{t}\left( 1-\frac{\pi }{10} \right)\]

    B) \[\frac{\pi B{{r}^{2}}}{t}\left( 1-\frac{\pi }{8} \right)\]

    C) \[\frac{\pi B{{r}^{2}}}{t}\left( 1-\frac{\pi }{6} \right)\]

    D) \[\frac{\pi B{{r}^{2}}}{t}\left( 1-\frac{\pi }{4} \right)\]

    View Answer play_arrow
  • question_answer32) 25 tuning forks are arranged in series in the order of decreasing frequency. Any two successive forks produce 3 beats/s. If the frequency of the first tuning fork is the octave of the last fork, then the frequency of the 21st fork is

    A) \[72Hz\]

    B) \[288Hz\]

    C) \[84Hz\]

    D) \[87Hz\]

    View Answer play_arrow
  • question_answer33) If the red light is replaced by blue light illuminating the object in a microscope the resolving power of the microscope

    A) decreases

    B) increases

    C) gets halved

    D) remains unchanged

    View Answer play_arrow
  • question_answer34) Five identical lamps grouped together produce a certain illumination on a screen kept 5 m from the lamps. If three of the lamps are switched-off, through what distance should the group of lamps be moved to obtain the same illumination on the screen? (Assume normal incidence)

    A) \[\sqrt{10}m\]towards the screen

    B) \[(5+\sqrt{10})m\]towards the screen

    C) \[(5-\sqrt{10})m\]towards the screen

    D) \[(5-\sqrt{10})m\]away from the screen

    View Answer play_arrow
  • question_answer35) A body of mass \[2kg\] makes an elastic collision with another body at rest and continues to move in the original direction with one-fourth its original speed. The mass of the second body which collides with the first body is

    A) \[2kg\]

    B) \[1.2kg\]

    C) \[3kg\]

    D) \[1.5kg\]

    View Answer play_arrow
  • question_answer36) In Youngs double slit experiment, the intensity of light coming from one of the slits is doubled the intensity from the other slit. The ratio of the maximum intensity to the minimum intensity in the interference fringe pattern observed is

    A) 34

    B) 40

    C) 25

    D) 38

    View Answer play_arrow
  • question_answer37) A rocket of initial mass \[1000kg\] ejects mass at a constant rate of \[10kg/s\] with constant relative speed of\[11m{{s}^{-1}}\]. Neglecting gravity, the acceleration of the rocket 1 min after the blast is

    A) \[11/40m{{s}^{-2}}\]

    B) \[22/40m{{s}^{-2}}\]

    C) \[1.1/40m{{s}^{-2}}\]

    D) \[1m{{s}^{-2}}\]

    View Answer play_arrow
  • question_answer38) An elastic ball is dropped from a height\[h\]and it rebounds many times from the floor. If the coefficient of restitution is\[e\], the time interval between the second and the third impacts, is

    A) \[ev/g\]

    B) \[{{e}^{2}}v/g\]

    C) \[{{e}^{2}}\sqrt{\left( \frac{8h}{g} \right)}\]

    D) \[{{e}^{2}}\sqrt{\left( \frac{h}{g} \right)}\]

    View Answer play_arrow
  • question_answer39) An adulterated sample of milk has a density of\[1032kg{{m}^{-3}}\], while pure milk has a density of\[1080kg{{m}^{-3}}\]. Then the volume of pure milk in a sample of \[10L\] of adulterated milk is

    A) \[0.5L\]

    B) \[1.0L\]

    C) \[2.0L\]

    D) \[4.0L\]

    View Answer play_arrow
  • question_answer40) Typical silt (hard mud) particle of radius\[20\mu m\]is on the top of lake water, its density is \[2000kg/{{m}^{3}}\] and the viscosity of lake water is\[1.0mPa\], density is\[1000\text{ }kg/{{m}^{3}}\]. If the lake is still (has no internal fluid motion) the terminal speed with which the particle hits the bottom of the lake is in\[mm/s\]

    A) \[0.67\]

    B) \[0.77\]

    C) \[0.87\]

    D) \[0.97\]

    View Answer play_arrow
  • question_answer41) The following diagram indicates the energy levels of a certain atom when the system moves from \[4E\] level to\[E\]. A photon of wavelength\[\lambda \], is emitted. The wavelength of photon produced during its transition from\[\frac{7}{3}E\] level to\[E\]is\[{{\lambda }_{2}}\]. The ratio\[\frac{{{\lambda }_{1}}}{{{\lambda }_{2}}}\]will be

    A) \[\frac{9}{4}\]

    B) \[\frac{4}{9}\]

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

    D) \[\frac{7}{3}\]

    View Answer play_arrow
  • question_answer42) A thin ring of mass \[2.7kg\] and radius \[8cm\] rotates about an axis through its centre and perpendicular to the plane of the ring at\[1.5rev/s\]. Calculate the kinetic energy of the ring.

    A) \[0.763\,\,J\]

    B) \[0.345\,\,J\]

    C) \[1.5\,\,J\]

    D) zero

    View Answer play_arrow
  • question_answer43) Two bodies at different temperatures are mixed in a calorimeter. Which of the following quantities remains conserved?

    A) Sum of the temperatures of the two bodies

    B) Total heat of the two bodies

    C) Total internal energy of the two bodies

    D) Internal energy of each body

    View Answer play_arrow
  • question_answer44) Mark the correct option.

    A) In electrostatics, there is no motion of charge at all in conductors bulk

    B) In electrostatics, there is a motion of charged particle in conductors bulk

    C) In electrostatics and current electricity there is a net motion of charged particles in the bulk of the material of the conductor

    D) In electrostatics and current electricity there is no net motion of charged particles in die bulk of the material of the conductor

    View Answer play_arrow
  • question_answer45) Binding energy of nucleus is defined as

    A) the energy released, when the nucleus has been separated into its constituent particles

    B) the energy added, to separate the nucleus from its constituent particles

    C) the energy added to form the nucleus from its constituent particles

    D) None of the above

    View Answer play_arrow
  • question_answer46) The magnetic field in a region between the poles of an electromagnet is uniform at any time, but its magnitude is increasing at the rate of\[0.02\text{ }T/s\]. A conducting loop is placed in this region, whose plane is perpendicular to the direction of magnetic field. Calculate the emf induced and induced current in the loop. Take cross-section area of loop as \[120c{{m}^{2}}\] and resistance of loop as\[5\Omega \].

    A) \[0.48\,\,V,\,\,0.0096\,\,mA\]

    B) \[0.48\,\,mV,\,\,0.0096\,\,mA\]

    C) \[0.24\,\,mV,\,\,0.048\,\,mA\]

    D) \[0.24\,\,mV,\,\,Zero\]

    View Answer play_arrow
  • question_answer47) A car travels 15 km east at a constant speed of\[20km/h\], then continues east for \[20km\] at a constant speed of\[30km/h\]. What can be said about the magnitude of average velocity?

    A) \[{{v}_{av}}>25km/h\]

    B) \[{{v}_{av}}<25km/h\]

    C) \[{{v}_{av}}=25km/h\]

    D) Information is insufficient

    View Answer play_arrow
  • question_answer48) A body when projected vertically up covers a total distance 5, during its time of flight. If we neglect gravity then how much distance the particle will travel during the same time? Will it fall back?

    A) \[s,\]Yes

    B) \[s,\]No

    C) \[2s,\]Yes

    D) \[2s,\]No

    View Answer play_arrow
  • question_answer49) If \[i\] is increasing continuously, then find the direction of induced current in the loop.

    A) Anticlockwise

    B) Clockwise

    C) In any direction

    D) No current will be induced

    View Answer play_arrow
  • question_answer50) A vehicle of mass \[m\] is moving on a rough horizontal road with momentum\[p\]. If the coefficient of friction between the tyres and the road be\[\mu \], then the stopping distance is

    A) \[\frac{p}{2\mu mg}\]

    B) \[\frac{{{p}^{2}}}{2\mu mg}\]

    C) \[\frac{p}{2\mu {{m}^{2}}g}\]

    D) \[\frac{{{p}^{2}}}{2\mu {{m}^{2}}g}\]

    View Answer play_arrow
  • question_answer51) The structure of 4-methyl-2-pentene-1-ol is

    A) \[C{{H}_{3}}-C{{H}_{2}}-HC=CH-C{{H}_{2}}OH\]

    B) \[C{{H}_{3}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{CH}}\,-HC=CH-C{{H}_{2}}OH\]

    C) \[C{{H}_{3}}-\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{CHCH}}\,=\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\]

    D) \[C{{H}_{3}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}\,=CH-C{{H}_{2}}C{{H}_{2}}OH\]

    View Answer play_arrow
  • question_answer52) Soda ash is

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

    B) \[NaOH\]

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

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

    View Answer play_arrow
  • question_answer53) Tritium is an isotope of

    A) hydrogen

    B) titanium

    C) tantalum

    D) tellurium

    View Answer play_arrow
  • question_answer54) When a nucleus emits an alpha particle, its atomic mass

    A) decreases by 2 units

    B) increases by 2 units

    C) decreases by 4 units

    D) increases by 4 units

    View Answer play_arrow
  • question_answer55) Which of the following is present in tenon?

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

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

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

    D) \[B{{r}_{2}}\]

    View Answer play_arrow
  • question_answer56) The chemical which is known as the king of chemicals is

    A) sodium hydroxide

    B) sulphuric acid

    C) calcium carbonate

    D) ammonium sulphate

    View Answer play_arrow
  • question_answer57) Carborundum is the name of

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

    B) \[SiC\]

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

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

    View Answer play_arrow
  • question_answer58) The \[P-P-P\] bond angle in white phosphorus is

    A) \[{{120}^{o}}\]

    B) \[{{109}^{o}},\,\,28\]

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

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

    View Answer play_arrow
  • question_answer59) The fertilizer named Nitrolim is prepared by the use of

    A) \[CaO+{{N}_{2}}\]

    B) \[CaC+{{N}_{2}}\]

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

    D) \[Ca{{C}_{2}}+{{N}_{2}}\]

    View Answer play_arrow
  • question_answer60) Which one is the correct representation of\[NH_{4}^{+}\]ion?

    A) \[\left( \underset{\begin{smallmatrix} | \\ H \end{smallmatrix}}{\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{H-N\to H}}}\, \right)\]

    B) \[\left( \underset{\begin{smallmatrix} | \\ H \end{smallmatrix}}{\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{H-N\leftarrow H}}}\, \right)\]

    C) \[\left( \underset{\begin{smallmatrix} \uparrow \\ H \end{smallmatrix}}{\overset{\begin{smallmatrix} H \\ \downarrow \end{smallmatrix}}{\mathop{H\to N-H}}}\, \right)\]

    D) \[\left( \underset{\begin{smallmatrix} \downarrow \\ H \end{smallmatrix}}{\overset{\begin{smallmatrix} H \\ \uparrow \end{smallmatrix}}{\mathop{H\leftarrow N\to H}}}\, \right)\]

    View Answer play_arrow
  • question_answer61) What is the boiling point of a solution containing \[0.456g\] of camphor (molar mass\[=152\]) dissolved in \[31.4g\] of acetone\[(b.p={{56.30}^{o}}C)\], if the molecular elevation constant per \[100g\] of acetone is\[{{17.2}^{o}}C\]?

    A) \[{{56.46}^{o}}C\]

    B) \[{{36.56}^{o}}C\]

    C) \[{{56.14}^{o}}C\]

    D) \[{{72.52}^{o}}C\]

    View Answer play_arrow
  • question_answer62) What according to Fajans rules leads to increased ionic character?

    A) Large cation and small anion

    B) Small cation and small charge on cation

    C) Small cation and large charge on cation

    D) Large cation and large charge on cation

    View Answer play_arrow
  • question_answer63) The reaction given below is known as Dry ether\[{{C}_{6}}{{H}_{5}}Br+2Na+BrC{{H}_{3}}\xrightarrow{Dry\,\,ether}\]\[{{C}_{6}}{{H}_{5}}C{{H}_{3}}+2NaBr\]

    A) Wurtzs reaction

    B) Wurtz Fittigs reaction

    C) Friedel-Crafts reaction

    D) Wurtz and Crafts reaction

    View Answer play_arrow
  • question_answer64) Compound\[A\]on reduction gives\[B\], which on further reaction with\[CHC{{l}_{3}}\]and alcoholic\[KOH\] gives compound\[C\], which on further hydrolysis gives aniline. The compound\[A\]is

    A) nitrobenzene

    B) methylamine

    C) nitromethane

    D) nitro sobenzene

    View Answer play_arrow
  • question_answer65) DDT is formed from

    A) benzene and chlorobenzene

    B) chloral and chlorobenzene

    C) chloral and benzene

    D) chlorobenzene and chlorine

    View Answer play_arrow
  • question_answer66) Freon-114 is an organic substance used in refrigerators and air conditioners. It is chemically called 1, 2-dichloro tetrafluoroethane. Its correct formula is

    A) \[Cl-\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\overset{\begin{smallmatrix} F \\ | \end{smallmatrix}}{\mathop{C}}}\,-\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\overset{\begin{smallmatrix} F \\ | \end{smallmatrix}}{\mathop{C}}}\,-H\]

    B) \[H-\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\overset{\begin{smallmatrix} F \\ | \end{smallmatrix}}{\mathop{C}}}\,-\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\overset{\begin{smallmatrix} F \\ | \end{smallmatrix}}{\mathop{C}}}\,-F\]

    C) \[F-\underset{\begin{smallmatrix} | \\ F \end{smallmatrix}}{\overset{\begin{smallmatrix} Cl \\ | \end{smallmatrix}}{\mathop{C}}}\,-\underset{\begin{smallmatrix} | \\ F \end{smallmatrix}}{\overset{\begin{smallmatrix} F \\ | \end{smallmatrix}}{\mathop{C}}}\,-F\]

    D) \[F-\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\overset{\begin{smallmatrix} F \\ | \end{smallmatrix}}{\mathop{C}}}\,-\underset{\begin{smallmatrix} | \\ F \end{smallmatrix}}{\overset{\begin{smallmatrix} Cl \\ | \end{smallmatrix}}{\mathop{C}}}\,-\underset{\begin{smallmatrix} | \\ F \end{smallmatrix}}{\overset{\begin{smallmatrix} F \\ | \end{smallmatrix}}{\mathop{C}}}\,-F\]

    View Answer play_arrow
  • question_answer67) Which disaccharide is present in milk?

    A) Sucrose

    B) Lactose

    C) Maltose

    D) Ketose

    View Answer play_arrow
  • question_answer68) Emulsifier is an agent which

    A) accelerates the dispersion

    B) stabilises the emulsion

    C) homogenises the emulsion

    D) None of the above

    View Answer play_arrow
  • question_answer69) For a chemical reaction\[xA\to yM\]rate law is\[r=k{{[A]}^{3}}\]. If the concentration of A is doubled, the reaction rate will be

    A) doubled

    B) quadrupled

    C) increased 4 times

    D) increased 8 times

    View Answer play_arrow
  • question_answer70) The formula representing correct relationship between\[{{K}_{c}}\]and\[{{K}_{p}}\]in gaseous equilibrium is

    A) \[\frac{{{K}_{p}}}{RT}={{({{K}_{c}})}^{\Delta {{n}_{g}}}}\]

    B) \[\frac{{{K}_{c}}}{RT}={{({{K}_{p}})}^{\Delta {{n}_{g}}}}\]

    C) \[{{K}_{p}}={{K}_{c}}{{(RT)}^{\Delta {{n}_{g}}}}\]

    D) \[{{K}_{c}}={{K}_{p}}{{(RT)}^{\Delta {{n}_{g}}}}\]

    View Answer play_arrow
  • question_answer71) The bond order of a molecule is given by

    A) the difference between the number of electrons in bonding and anti bonding orbitals

    B) total number of electrons in bonding and anti bonding orbitals

    C) twice the difference between the number of electrons in bonding and anti bonding orbitals

    D) half the difference between number of electrons in bonding and anti bonding orbitals

    View Answer play_arrow
  • question_answer72) Presence ofanitro group in a benzene ring

    A) renders the ring basic

    B) deactivates the ring towards nucleophilic substitution

    C) deactivates the ring towards electrophilic substitution

    D) activates the ring towards electrophilic substitution

    View Answer play_arrow
  • question_answer73) Doping of silicon\[(Si)\]with boron\[(B)\]leads to

    A) \[n-\]type semiconductor

    B) \[p-\]type Semiconductor

    C) metal

    D) insulator

    View Answer play_arrow
  • question_answer74) The standard emf of a cell, involving one electron change is found to be \[0.591V\] at\[{{25}^{o}}C.\] The equilibrium constant of the reaction is\[(F=96500\,\,C\,\,mo{{l}^{-1}})\]

    A) \[1.0\times {{10}^{1}}\]

    B) \[1.0\times {{10}^{5}}\]

    C) \[1.0\times {{10}^{10}}\]

    D) \[1.0\times {{10}^{30}}\]

    View Answer play_arrow
  • question_answer75) Term catalyst was given by

    A) Rutherford

    B) Berzilius

    C) Wohler

    D) Kolbe

    View Answer play_arrow
  • question_answer76) The following acids have been arranged in the order of decreasing acid strength. Identify the correct order \[ClOH(I)\,\,\,BrOH(II)\,\,\,IOH(III)\]

    A) \[I>II>III\]

    B) \[II>I>III\]

    C) \[III>II>I\]

    D) \[I>III>II\]

    View Answer play_arrow
  • question_answer77) \[Xe{{F}_{2}}\]on hydrolysis gives

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

    B) \[XeO\]

    C) \[Xe\]

    D) \[Xe{{O}_{2}}\]

    View Answer play_arrow
  • question_answer78) The properties of\[Zr\]and\[Hf\]are similar because

    A) both belong to \[d-\]block

    B) both belong to same group of Periodic Table

    C) both have similar radii

    D) both have same number of electrons

    View Answer play_arrow
  • question_answer79) The reaction of\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]with\[NaCl\]and conc. \[{{H}_{2}}S{{O}_{4}}\]gives

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

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

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

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

    View Answer play_arrow
  • question_answer80) What is the expected structure of the organic product when ethylmagnesium bromide is treated with heavy water\[({{D}_{2}}O)\]?

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

    B) \[{{C}_{2}}{{H}_{5}}OD\]

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

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

    View Answer play_arrow
  • question_answer81) The reaction,\[{{(C{{H}_{3}})}_{3}}C-Br\xrightarrow{{{H}_{2}}O}{{(C{{H}_{3}})}_{3}}C-OH\]is

    A) elimination reaction

    B) substitution reaction

    C) free radical reaction

    D) addition reaction

    View Answer play_arrow
  • question_answer82) Name of the compound given below is

    A) 4-ethyl-3-methyloctane

    B) 3-methyl-4-ethyloctane

    C) 2, 3-diethylheptane

    D) 5-ethyl-6-methyloctane

    View Answer play_arrow
  • question_answer83) Which of the following is not true for\[{{[Co{{(F)}_{6}}]}^{3-}}\]?

    A) It is paramagnetic due to the presence of 4 unpaired electrons

    B) It has coordination number of 6

    C) It is outer orbital complex

    D) It involves\[{{d}^{2}}s{{p}^{3}}\]hybridisation

    View Answer play_arrow
  • question_answer84) When one mole of each of the following complex salts is treated with excess of \[AgN{{O}_{3}},\] which of them gives maximum amount of\[AgCl\]?

    A) \[[Co{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}\]

    B) \[[Co{{(N{{H}_{3}})}_{5}}Cl]C{{l}_{2}}\]

    C) \[[Co{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]Cl\]

    D) \[[Co{{(N{{H}_{3}})}_{3}}C{{l}_{3}}]\]

    View Answer play_arrow
  • question_answer85) Reimer-Tiemann reaction is useful for the preparation of

    A) benzaldehyde

    B) salicylaldehyde

    C) toluene

    D) acetophenone

    View Answer play_arrow
  • question_answer86) Which of the following compounds will produce the most stable carbonium ion when subjected to dehydration?

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

    B) \[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}}\,-OH\]

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

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

    View Answer play_arrow
  • question_answer87) In\[CC{{l}_{4}}\], the four valencies of carbon are directed towards the comers of a

    A) cube

    B) hexagon

    C) prism

    D) tetrahedron

    View Answer play_arrow
  • question_answer88) Fixation of nitrogen means

    A) manufacture of nitrogen from air

    B) nitrogen cycle in nature

    C) decomposition of nitrogen

    D) conversion of atmospheric nitrogen into nitrogen compounds

    View Answer play_arrow
  • question_answer89) Water is said to be permanently hard, when it contains

    A) chlorides and sulphates of\[Mg\]and\[Ca\]

    B) bicarbonates of\[Mg\]and\[Ca\]

    C) sulphates of\[Cu\]and\[Hg\]

    D) carbonates and bicarbonates of\[Mg\]and\[Sr\]

    View Answer play_arrow
  • question_answer90) Given below is a statement and a reason

    I. Statement: Water has a higher boiling point than\[{{H}_{2}}S\].
    II. Reason: At room temperature water is a liquid while \[{{H}_{2}}S\]is a gas.
    Which of the following are true?

    A) Both I and II are correct however II does not give any proper explanation for statement I.

    B) Both I and II are correct, II gives the proper explanation for statement I

    C) Both I and II are incorrect

    D) I is correct but II is incorrect

    View Answer play_arrow
  • question_answer91) The oxidation number of\[C\]in\[C{{H}_{4}},\,\,C{{H}_{3}}Cl\],\[CHC{{l}_{3}},\,\,C{{H}_{2}}C{{l}_{2}}\]and\[CC{{l}_{4}}\]is respectively

    A) \[-4,\,\,-2,\,\,+2,\,\,0,\,\,+4\]

    B) \[+2,\,\,4,\,\,0,\,\,-2,\,\,-4\]

    C) \[+4,\,\,+0,\,\,-2,\,\,-2,\,\,+4\]

    D) \[0,\,\,2,\,\,-2,\,\,4,\,\,4\]

    View Answer play_arrow
  • question_answer92) \[Z{{n}^{2+}}(aq)+2{{e}^{-}}\xrightarrow{{}}Zn(s)\]. This is

    A) oxidation

    B) reduction

    C) redox reaction

    D) hydrolysis

    View Answer play_arrow
  • question_answer93) The cause of Brownian movement is

    A) heat changes in liquid state

    B) convectional currents

    C) the impact of molecules of the dispersion medium on the colloidal particles

    D) attractive forces between the colloidal particles and molecules of dispersion medium

    View Answer play_arrow
  • question_answer94) At\[700K\], the equilibrium constant\[{{K}_{p}}\]for the reaction\[2S{{O}_{3}}(g)2S{{O}_{2}}(g)+{{O}_{2}}(g)\]is\[1.80\times {{10}^{-3}}k\,\,Pa\]. What is the numerical value of\[{{K}_{c}}\]in moles per litre for this reaction at the same temperature?

    A) \[3.13\times {{10}^{-7}}\]

    B) \[3.13\times {{10}^{7}}\]

    C) \[3.13\times {{10}^{-10}}\]

    D) None of these

    View Answer play_arrow
  • question_answer95) The rate of the chemical reaction doubles for an increase of \[10K\] in absolute temperature from\[298K\]. Calculate\[{{E}_{a}}\]

    A) \[52.988\,\,kJ\]

    B) \[42.024\,\,kJ\]

    C) \[52.898\,\,kJ\]

    D) \[51.898\,\,kJ\]

    View Answer play_arrow
  • question_answer96) Chloroprene is used in making

    A) synthetic rubber

    B) plastic

    C) petrol

    D) All of these

    View Answer play_arrow
  • question_answer97) What is the chemical formula of rust?

    A) \[F{{e}_{2}}{{O}_{3}}\cdot {{H}_{2}}O\]

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

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

    D) None of the above

    View Answer play_arrow
  • question_answer98) For tetrahedral coordination, the radius ratio \[({{r}^{+}}/{{r}^{-}})\]should be

    A) \[0.155-0.225\]

    B) \[0.225-0.414\]

    C) \[0.414-0.732\]

    D) \[0.732-1\]

    View Answer play_arrow
  • question_answer99) Thermodynamically the most stable form of carbon is

    A) diamond

    B) graphite

    C) peat

    D) coal

    View Answer play_arrow
  • question_answer100) In the following reaction, A and B, respectively are\[A\xrightarrow{HBr}{{C}_{2}}{{H}_{5}}Br\xrightarrow{B}A\]

    A) \[{{C}_{2}}{{H}_{4}},\,\,alc.KOH/\Delta \]

    B) \[{{C}_{2}}{{H}_{5}}Cl,\,\,aq.KOH/\Delta \]

    C) \[C{{H}_{3}}OH,\,\,aq.KOH/\Delta \]

    D) \[{{C}_{2}}{{H}_{2}},\,\,PB{{r}_{3}}\]

    View Answer play_arrow
  • question_answer101) Which of the following is the contractile protein of a muscle?

    A) Tubulin

    B) Myosin

    C) Tropo myosin

    D) All of these

    View Answer play_arrow
  • question_answer102) The formation of multi valents at meiosis in diploid organism is due to

    A) mono so my

    B) inversion

    C) deletion

    D) reciprocal translocation

    View Answer play_arrow
  • question_answer103) In mammals, histamine is secreted by

    A) fibroblasts

    B) histocytes

    C) lymphocytes

    D) mast cells

    View Answer play_arrow
  • question_answer104) Which of the microorganisms is used for production of citric acid in industries?

    A) Lactobacillus vulgaris

    B) Pencillium citrinum

    C) Aspergillus niger

    D) Rhizopus nigricans

    View Answer play_arrow
  • question_answer105) Yeast (Saccharomyces cerevisiae) is used for the industrial production of

    A) butanal

    B) citric acid

    C) tetracycline

    D) ethanol

    View Answer play_arrow
  • question_answer106) The layer of cells that secrete enamel of tooth is

    A) dentoblast

    B) ameloblast

    C) osteoblast

    D) odontoblast

    View Answer play_arrow
  • question_answer107) Which important greenhouse gas, other than carbon dioxide, is being produced from the agricultural fields?

    A) Arsine

    B) Sulphur dioxide

    C) Ammonia

    D) Nitrous oxide

    View Answer play_arrow
  • question_answer108) The role of double fertilisation in angiosperms is to produce

    A) endosperm

    B) integuments

    C) cotyledons

    D) endocarp

    View Answer play_arrow
  • question_answer109) The exchange of gases in the alveoli of the lungs takes place by

    A) osmosis

    B) simple diffusion

    C) passive transport

    D) active transport

    View Answer play_arrow
  • question_answer110) A plant hormone used for inducing morphogenesis in plant tissue culture is

    A) abscisic acid

    B) gibberellins

    C) cytokinins

    D) ethylene

    View Answer play_arrow
  • question_answer111) Which of the following is non-symbiotic biofertilizer?

    A) VAM

    B) Azotobacter

    C) Anabaena

    D) Rhizobium

    View Answer play_arrow
  • question_answer112) Carbon monoxide is a pollutant because it

    A) reacts with oxygen

    B) inhibits glycolysis

    C) reacts with haemoglobin

    D) makes nervous system inactive

    View Answer play_arrow
  • question_answer113) If there was no carbon dioxide in the earths atmosphere, the temperature of earths surface would be

    A) same as present

    B) less than the present

    C) higher than the present

    D) dependent on the amount of oxygen in the atmosphere

    View Answer play_arrow
  • question_answer114) Total number of bones in the hindlimb of a man is

    A) 14

    B) 21

    C) 24

    D) 30

    View Answer play_arrow
  • question_answer115) When a single gene influences more than one trait, it is called

    A) pleiotropy

    B) epistasis

    C) pseudo dominance

    D) None of these

    View Answer play_arrow
  • question_answer116) Calcitonin is a thyroid hormone which

    A) elevates potassium level in blood

    B) lowers calcium level in blood

    C) elevates calcium level in blood

    D) has no effect on calcium

    View Answer play_arrow
  • question_answer117) A condition of failure of kidney to form urine is called

    A) deamination

    B) entropy

    C) anuria

    D) None of these

    View Answer play_arrow
  • question_answer118) Ulothrix can be described as a

    A) filamentous alga with flagellated reproductive stages

    B) non-motile colonial alga lacking zoospores

    C) filamentous alga lacking flagellated reproductive stages

    D) membranous alga producing zoospores

    View Answer play_arrow
  • question_answer119) The long bones are hollow and connected by air passage. They are the characteristics of

    A) Aves

    B) mammals

    C) Reptilia

    D) land vertebrates

    View Answer play_arrow
  • question_answer120) Botulism caused by Clostridium botulinum affects the

    A) spleen

    B) intestine

    C) lymph glands

    D) neuromuscular junction

    View Answer play_arrow
  • question_answer121) Cellulose, the most important constituent of plant cell wall is made up of

    A) branched chain of glucose molecules linked by`\[\alpha ,\,\,1,\,\,6-\]glycosidic bond at the site of branching

    B) unbranched chain of glucose molecules linked by \[\alpha ,\,\,1,\,\,4-\]glycosidic bond

    C) branched chain of glucose molecules linked by \[\beta ,\,\,1,\,\,4-\]glycosidic bond in straight chain and \[\alpha ,\,\,1,\,\,6-\]glycosidic bond at the site of branching

    D) unbranched chain of glucose molecules linked by \[\beta ,\,\,1,\,\,4-\]glycosidic bond

    View Answer play_arrow
  • question_answer122) How many genome types are present in a typical green plants cell?

    A) Two

    B) Three

    C) More than five

    D) More than ten

    View Answer play_arrow
  • question_answer123) Bryophytes are dependent on water because

    A) archegonium has to remain filled with water for fertilization

    B) water is essential for fertilisation for their homos porous nature

    C) water is essential for their vegetative propagation

    D) the sperms can easily reach upto egg in the archegonium

    View Answer play_arrow
  • question_answer124) The main role of bacteria in the carbon cycle involves

    A) photosynthesis

    B) assimilation of nitrogenous compounds

    C) chemosynthesis

    D) digestion or breakdown of organic compounds

    View Answer play_arrow
  • question_answer125) Farmers have reported over 50% higher yields of rice by using which of the following biofertiliser?

    A) Mycorrhiza

    B) Azolla pinnata

    C) Cyanobacteria

    D) Legume-Rhizobium symbiosis

    View Answer play_arrow
  • question_answer126) Species restricted to a given area are called

    A) sibling

    B) endemic

    C) sympatric

    D) allopatric

    View Answer play_arrow
  • question_answer127) Solenocytes are the main excretory structures in

    A) annelids

    B) molluscs

    C) echinodermates

    D) Platyhelminthes

    View Answer play_arrow
  • question_answer128) Puccinia forms

    A) uredia and pycnia on barberry leaves

    B) uredia and aecia on wheat leaves

    C) uredia and telia on wheat leaves

    D) uredia and aecia on barberry leaves

    View Answer play_arrow
  • question_answer129) In a terrestial ecosystem such as forest, maximum energy is in which trophic level?

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

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

    C) \[{{T}_{3}}\]

    D) \[{{T}_{4}}\]

    View Answer play_arrow
  • question_answer130) The DNA of E. coli is

    A) single-stranded and linear

    B) single-stranded and circular

    C) double-stranded and linear

    D) double-stranded and circular

    View Answer play_arrow
  • question_answer131) In the five kingdom system of classification, which single kingdom out of the following can include blue-green algae, nitrogen-fixing bacteria and methangonic archaebacteria?

    A) Monera

    B) Fungi

    C) Plantae

    D) Protista

    View Answer play_arrow
  • question_answer132) A woman with two genes (one on each X-chromosome) for haemophilia and one gene for colour blindness on the X-chromosomes marries a normal man. How will the progeny be?

    A) All sons and daughters haemophilic and colourblind

    B) Haemophilic and colourblind daughters

    C) 50% haemophilic colourblind sons and 50% haemophilic sons

    D) 50% haemophilic daughters and 50% colour blind daughters

    View Answer play_arrow
  • question_answer133) The response of different organisms to the environmental rhythms of light and darkness is called

    A) phototaxis

    B) phototropism

    C) vernalisation

    D) photo periodism

    View Answer play_arrow
  • question_answer134) The functional unit of contractile system in striated muscle is

    A) cross bridge

    B) myofibril

    C) sarcomere

    D) \[Z-\]band

    View Answer play_arrow
  • question_answer135) The contraction of gall bladder is due to

    A) gastrin

    B) secretin

    C) cholecystokinin

    D) enter gastrone

    View Answer play_arrow
  • question_answer136) Typhoid fever is caused by

    A) Giardia

    B) Salmonella

    C) Shigella

    D) Escherichia

    View Answer play_arrow
  • question_answer137) Microtubule is involved in the

    A) cell division

    B) DNA recognition

    C) muscle contraction

    D) membrane architecture

    View Answer play_arrow
  • question_answer138) The diversity in the type of beaks of finches adapted to different feeding habits on the Galapagos islands, as observed by Darwin, provides evidence for

    A) origin of species by natural selection

    B) intraspecific variations

    C) intraspecific competition

    D) interspecific competition

    View Answer play_arrow
  • question_answer139) The most important component of the oral contraceptive pills is

    A) progesterone

    B) growth hormone

    C) thyroxine

    D) luteinising hormone

    View Answer play_arrow
  • question_answer140) Genes that are involved in turning on or off the transcription of a set structural genes are called

    A) polymorphic genes

    B) operator genes

    C) redundant genes

    D) regulatory genes

    View Answer play_arrow
  • question_answer141) Which one of the following statements about cytochrome\[{{P}_{450}}\]is wrong?

    A) It has an important role in metabolism

    B) It contains iron

    C) It is a coloured cell

    D) It is an enzyme involved in oxidation reactions

    View Answer play_arrow
  • question_answer142) Lactose is composed of

    A) glucose and fructose

    B) glucose and glucose

    C) glucose and galactose

    D) fructose and galactose

    View Answer play_arrow
  • question_answer143) Human immunodeficiency virus \[(HIV)\] has a protein coat and a genetic material which is

    A) single-stranded DNA

    B) single-stranded RNA

    C) double-stranded RNA

    D) double-stranded DNA

    View Answer play_arrow
  • question_answer144) The book Genera Plantarum was written by

    A) Hutchinson

    B) Bessey

    C) Engler and Pranti

    D) Bentham and Hooker

    View Answer play_arrow
  • question_answer145) In which of the following would you place the plants having vascular tissue lacking seeds?

    A) Gymnosperms

    B) Algae

    C) Pteridophytes

    D) Bryophytes

    View Answer play_arrow
  • question_answer146) Sympathetic nervous system induces

    A) heartbeat

    B) secretion of digestive juice

    C) Secretion of saliva

    D) All of the above

    View Answer play_arrow
  • question_answer147) The middle piece of the sperm contains

    A) proteins

    B) centriole

    C) nucleus

    D) mitochondria

    View Answer play_arrow
  • question_answer148) The respiratory centres which control inspiration and expiration are located in

    A) spinal cord

    B) diencephalon

    C) cerebellum

    D) medulla oblongata

    View Answer play_arrow
  • question_answer149) The proteins are synthesised at

    A) ribosomes

    B) mitochondria

    C) centrosomes

    D) Golgi bodies

    View Answer play_arrow
  • question_answer150) The term aquaculture means

    A) aspergillosis

    B) inland fisheries

    C) marine fisheries

    D) Both (b) and (c)

    View Answer play_arrow
  • question_answer151) Which part of the world has high density of organisms?

    A) Deciduous forests

    B) Grasslands

    C) Savannas

    D) Tropical rainforests

    View Answer play_arrow
  • question_answer152) Tablets to prevent contraception contain

    A) progesterone

    B) FSH

    C) LH

    D) Both (b) and (c)

    View Answer play_arrow
  • question_answer153) A system of classification in which a large number of traits are considered is

    A) phylogenetic system

    B) artificial system

    C) natural system

    D) synthetic system

    View Answer play_arrow
  • question_answer154) Hybridisation between \[Tt\times tt\] gives rise to the progeny of ratio

    A) \[1:1\]

    B) \[1:2:1\]

    C) \[1:2\]

    D) \[4:1\]

    View Answer play_arrow
  • question_answer155) Active immunity means

    A) resistance developed after disease

    B) increasing quantity of blood

    C) resistance developed before disease

    D) increasing rate of heart-beat

    View Answer play_arrow
  • question_answer156) The canal system is a characteristic feature of

    A) echinoderms

    B) helminthes

    C) coelenterates

    D) sponges

    View Answer play_arrow
  • question_answer157) Hybridoma cells are

    A) product of spore formation in bacteria

    B) hybrid cells resulting from myeloma cells

    C) nervous cells of frog

    D) only cells having oncogenes

    View Answer play_arrow
  • question_answer158) In DNA when AGCT occurs, their association is as per which of the following pair?

    A) \[AC-GT\]

    B) \[AG-CT\]

    C) \[AT-GC\]

    D) All of these

    View Answer play_arrow
  • question_answer159) After ovulation, Graafian follicle regresses into

    A) corpus luteum

    B) corpus callosum

    C) corpus albicans

    D) corpus artesia

    View Answer play_arrow
  • question_answer160) Which cranial nerve has the highest number of branches?

    A) Facial nerve

    B) Trigeminal

    C) Vagus nerve

    D) None of these

    View Answer play_arrow
  • question_answer161) Carbon dioxide acceptor in \[{{C}_{3}}-\]plants is

    A) \[PGA\]

    B) \[RuDP\]

    C) \[PEP\]

    D) None of these

    View Answer play_arrow
  • question_answer162) The problem due to Rh~ factor arises when the blood of two (\[R{{h}^{+}}\]and\[R{{h}^{-}}\]) mix-up

    A) during pregnancy

    B) through transfusion

    C) in a test tube

    D) Both (a) and (b)

    View Answer play_arrow
  • question_answer163) The Pneumococcus experiment proves that

    A) DNA is the genetic material

    B) RNA sometime controls the production of DNA and proteins

    C) bacteria undergo binary fission

    D) bacteria do not reproduce sexually

    View Answer play_arrow
  • question_answer164) Haemophilic man marries a normal woman. Their offsprings will be

    A) all boys haemophilic

    B) all normal

    C) all girls haemophilic

    D) all haemophilic

    View Answer play_arrow
  • question_answer165) DNA is mainly found in

    A) nucleus only

    B) cytoplasm only

    C) nucleus and cytoplasm

    D) nucleolus

    View Answer play_arrow
  • question_answer166) Which of the following is mismatched?

    A) Vitamin - K - Beri-beri

    B) Vitamin - D - Rickets

    C) Vitamin - C - Scurvy

    D) Vitamin - A - Xerophthalmia

    View Answer play_arrow
  • question_answer167) The maximum biomagnification would be in which of the following case of aquatic ecosystem?

    A) Fishes

    B) Phytoplanktons

    C) Birds

    D) Zooplanktons

    View Answer play_arrow
  • question_answer168) Some of the enzymes, which are associated in converting fats into carbohydrates are present in

    A) microsomes

    B) liposomes

    C) Golgi bodies

    D) glyoxysomes

    View Answer play_arrow
  • question_answer169) The antherozoids of Funaria are

    A) mono ciliated

    B) biciliated

    C) multiciliated

    D) aciliated

    View Answer play_arrow
  • question_answer170) Haemoglobin is a type of

    A) carbohydrate

    B) vitamin

    C) skin pigment

    D) respiratory pigment

    View Answer play_arrow
  • question_answer171) Dichotomous branching is found in

    A) Marchantia

    B) fern

    C) liverworts

    D) Funaria

    View Answer play_arrow
  • question_answer172) Photosynthetic bacteria have pigments in

    A) chromoplasts

    B) leucoplasts

    C) chloroplasts

    D) chromatophore

    View Answer play_arrow
  • question_answer173) Which is (he principal cation in the plasma of the blood?

    A) Magnesium

    B) Sodium

    C) Potassium

    D) Calcium

    View Answer play_arrow
  • question_answer174) Glucose is carried from digestive tract to liver by

    A) pulmonary vein

    B) hepatic portal vein

    C) hepatic artery

    D) None of these

    View Answer play_arrow
  • question_answer175) Edible part of litchi is

    A) pericarp

    B) fleshy aril

    C) mesocarp

    D) endosperm

    View Answer play_arrow
  • question_answer176) The joint between atlas and axis is called

    A) pivot joint

    B) hinge joint

    C) saddle joint

    D) angular joint

    View Answer play_arrow
  • question_answer177) Cholecystokinin and duocrinin are secreted by

    A) adrenal cortex

    B) thyroid gland

    C) pancreas

    D) intestine

    View Answer play_arrow
  • question_answer178) Net gain of ATP molecules during aerobic respiration is

    A) 36 molecules

    B) 60 molecules

    C) 38 molecules

    D) 48 molecules

    View Answer play_arrow
  • question_answer179) The type of placentation in which ovary is syncarpous, unilocular and ovules on sutures is called

    A) marginal placentation

    B) parietal placentation

    C) axile placentation

    D) superficial placentation

    View Answer play_arrow
  • question_answer180) The blood group with antibody\[-a\] and antibody\[-b\]is

    A) B

    B) A

    C) O

    D) AB

    View Answer play_arrow
  • question_answer181) The endosperm of gymnosperms is

    A) polyploid

    B) haploid

    C) triploid

    D) diploid

    View Answer play_arrow
  • question_answer182) Rate of heartbeat is determined by

    A) Purkinje fibres

    B) papillary muscles

    C) SA-node

    D) AV-node

    View Answer play_arrow
  • question_answer183) Columella is a specialised structure found in the sporangium of

    A) Spirogyra

    B) Rhizopus

    C) Ulothrix

    D) None of these

    View Answer play_arrow
  • question_answer184) Which of the following is related to genetic engineering?

    A) Mutation

    B) Plasmid

    C) Plastid

    D) Heterosis

    View Answer play_arrow
  • question_answer185) Greenhouse effect refers to

    A) production of cereals

    B) cooling of earth

    C) trapping of UV-rays

    D) warming of earth

    View Answer play_arrow
  • question_answer186) Which of the following are homologous organs?

    A) Nails of human being and claws in animals

    B) Wings of bird and wings of insect

    C) Wings of bird and hand of human

    D) Wings of bat and cockroach

    View Answer play_arrow
  • question_answer187) The junction between the axon of one neuron and the dendrite of the next is called

    A) junction point

    B) a synapse

    C) a joint

    D) constant bridge

    View Answer play_arrow
  • question_answer188) To which of the following family do folic acid and pantothenic acid belong?

    A) Vitamin\[-C\]

    B) Vitamin\[-K\]

    C) Vitamin\[-A\]

    D) Vitamin\[-B\]complex

    View Answer play_arrow
  • question_answer189) The thickening of walls of arteries are called

    A) arthritis

    B) atherosclerosis

    C) anaeurysm

    D) Both (a) and (c)

    View Answer play_arrow
  • question_answer190) Due to which of the following organism yield of rice has been increased?

    A) Anabaena

    B) Bacillus polymyxa

    C) Bacillus papulae

    D) Sesbania

    View Answer play_arrow
  • question_answer191) The rate of photosynthesis is higher in

    A) red light

    B) blue light

    C) green light

    D) very high light

    View Answer play_arrow
  • question_answer192) The closing and opening of the leaves of Mimosa pudica is due to

    A) chemonastic movement

    B) ther monastic movement

    C) seismonastic movement

    D) hydrotropic movement

    View Answer play_arrow
  • question_answer193) Energy transfer from one trophic level to other in a food chain is

    A) 20%

    B) 10%

    C) 2%

    D) 1%

    View Answer play_arrow
  • question_answer194) The antibodies are

    A) germs

    B) carbohydrates

    C) proteins

    D) lipids

    View Answer play_arrow
  • question_answer195) Temperature changes in the environment affect most of the animals which are

    A) homoiothermic

    B) aquatic

    C) poikilothermic

    D) desert living

    View Answer play_arrow
  • question_answer196) The term humulin is used for

    A) human insulin

    B) powerful antibiotic

    C) isoenzyme

    D) hydrolytic enzyme

    View Answer play_arrow
  • question_answer197) The gonadotropic hormones are produced in

    A) interstitial cells of testes

    B) adrenal cortex

    C) adenohypophysis of pituitary

    D) posterior part of thyroid

    View Answer play_arrow
  • question_answer198) The first transgenic crop was

    A) cotton

    B) pea

    C) tobacco

    D) flax

    View Answer play_arrow
  • question_answer199) The process of replication in plasmid DNA, other than initiation, is controlled by

    A) mitochondrial gene

    B) bacterial gene

    C) plasmid gene

    D) None of the above

    View Answer play_arrow
  • question_answer200) Which of the following regarded as a unit of nervous tissue?

    A) Myelin sheath

    B) Axons

    C) Dendrites

    D) Neurons

    View Answer play_arrow


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