Solved papers for Manipal Medical Manipal Medical Solved Paper-2007

done Manipal Medical Solved Paper-2007

  • question_answer1) The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then

    A) the resistance will be doubled and the specific resistance will be halved

    B) the resistance will be halved and the specific resistance will remain unchanged

    C) the resistance will be halved and the specific resistance will be doubled

    D) the resistance and the specific resistance, will both remain unchanged

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  • question_answer2) A ball of mass 2 kg and another of mass 4 kg are dropped together from a 60 ft tall building. After a fall of 30 ft each towards earth, their respective kinetic energies will be in the ratio of

    A) \[\sqrt{2}:1\]

    B) \[1:4\]

    C) \[1:2\]

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

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  • question_answer3) One mole of an ideal gas at an initial temperature of T K does 6R joules of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is 5/3, the final temperature of gas will be

    A) \[(T+2.4)K\]

    B) \[(T-2.4)K\]

    C) \[(T+4)K\]

    D) \[(T-4)K\]

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  • question_answer4) A battery is charged at a potential of 15 V for 8 H when the current flowing is 10 A. The battery on discharge supplies a current of 5 A for 15 H. The mean terminal voltage during discharge is 14 V. The watt-hour efficiency of the battery is

    A) 82.5%

    B) 80%

    C) 90%

    D) 87.5%

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  • question_answer5) Resistances n, each of r ohm, when connected in parallel give an equivalent resistance of R ohm. If these resistances were connected in series, the combination would have a resistance in ohms, equal to

    A) \[{{n}^{2}}/R\]

    B) \[R/{{n}^{2}}\]

    C) \[R/n\]

    D) \[nR\]

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  • question_answer6) The unit of permittivity of free space,\[{{\varepsilon }_{0}},\]is

    A) coulomb/newton-metre

    B) \[newton-\text{ }metr{{e}^{2}}/coulom{{b}^{2}}\]

    C) \[coulom{{b}^{2}}/\text{ }newton-metr{{e}^{2}}\]

    D) \[coulom{{b}^{2}}/{{(newton-metre)}^{2}}\]

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  • question_answer7) Five equal resistances each of resistance R are connected as shown in the figure. A battery of V volts is connected between A and B. The current flowing in AFCEB will be

    A) \[\frac{3V}{R}\]

    B) \[\frac{V}{R}\]

    C) \[\frac{V}{2R}\]

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

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  • question_answer8) When three identical bulbs of 60 W, 200 V rating are connected in , series to a 200 V supply, the power drawn by them will be

    A) 60 W

    B) 180 W

    C) 10 W

    D) 20 W

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  • question_answer9) A galvanometer acting as a voltmeter will have

    A) a high resistance in parallel with its coil

    B) a high resistance in series with its coil

    C) a low resistance in parallel with its coil

    D) a low resistance in series with its coil

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  • question_answer10) A galvanometer of\[50\,\Omega \]resistance has 25 divisions. A current of\[4\times {{10}^{-4}}\]A gives a deflection of one division. To convert this galvanometer into a voltmeter having a range of 25 V, it should be connected with a resistance of

    A) \[2500\,\Omega \]as a shunt

    B) \[245\,\Omega \]as a shunt

    C) \[2550\,\Omega \]in series

    D) \[2450\,\Omega \]in series

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  • question_answer11) If\[{{\lambda }_{m}}\]denotes the wavelength at which the radiative emission from a black body at a temperature T K is maximum, then

    A) \[{{\lambda }_{m}}\propto {{T}^{4}}\]

    B) \[{{\lambda }_{m}}\]is independent of T

    C) \[{{\lambda }_{m}}\propto T\]

    D) \[{{\lambda }_{m}}\propto {{T}^{-1}}\]

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  • question_answer12) The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of the disc and of a circular ring of the same radius about a tangential axis in the plane of the ring is

    A) \[2:3\]

    B) \[2:1\]

    C) \[\sqrt{5}:\sqrt{6}\]

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

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  • question_answer13) A round disc of moment of inertia\[{{I}_{2}}\]about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia\[{{I}_{1}}\]rotating with an angular velocity co about the same axis. The final angular velocity of the combination of discs is

    A) \[\frac{{{I}_{2}}\omega }{{{I}_{1}}+{{I}_{2}}}\]

    B) \[\omega \]

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

    D) \[\frac{({{I}_{1}}+{{I}_{2}})\omega }{{{I}_{1}}}\]

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  • question_answer14) An electric dipole has the magnitude of its charge as q and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

    A) 2qE and minimum

    B) qE and pE

    C) zero and minimum

    D) qE and maximum

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  • question_answer15) A coil of 40 H inductance is connected in series with a resistance of \[8\,\Omega \]and the combination is joined to the terminals of a 2 V battery. The time constant of the circuit is

    A) 5 s

    B) \[\frac{1}{5}s\]

    C) 40 s

    D) 20 s

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  • question_answer16) A 6 V battery is connected to the terminals of a three metre long wire of uniform thickness and resistance of\[100\text{ }\Omega \]. The difference of potential between two points on the wire separated by a distance of 50 cm will be

    A) 2 V

    B) 3 V

    C) 1 V

    D) 1.5 V

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  • question_answer17) According to Einsteins photoelectric equation the graph between the kinetic energy of photoelectrons ejected and the frequency of incident radiation is

    A)

    B)

    C)

    D)

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  • question_answer18) A nucleus represented by the symbol\[_{z}^{A}X\]has

    A) Z neutrons and A - Z protons

    B) Z protons and A-Z neutrons

    C) Z protons and A neutrons

    D) A protons and Z ~ A neutrons

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  • question_answer19) The dimensions of universal gravitational constant are

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

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

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

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

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  • question_answer20) If in a nuclear fusion process, the masses of the fusing nuclei be\[{{m}_{1}}\]and\[{{m}_{2}}\]and the mass of the resultant nucleus be\[{{m}_{3}},\]then

    A) \[{{m}_{3}}={{m}_{1}}+{{m}_{2}}\]

    B) \[{{m}_{3}}=|{{m}_{1}}-{{m}_{2}}|\]

    C) \[{{m}_{3}}<({{m}_{1}}+{{m}_{2}})\]

    D) \[{{m}_{3}}>({{m}_{1}}+{{m}_{2}})\]

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  • question_answer21) In semiconductors at a room temperature

    A) the valence band is partially empty and the conduction band is partially filled

    B) the valence band is completely filled and the conduction band is partially filled

    C) the valence band is completely filled

    D) the conduction band is completely empty

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  • question_answer22) The peak voltage in the output of a half-wave diode rectifier fed with a sinusoidal signal without filter is 10 V. The DC component of the output voltage is

    A) \[\frac{10}{\sqrt{2}}V\]

    B) \[\frac{10}{\pi }V\]

    C) \[10\,V\]

    D) \[\frac{20}{\pi }\,V\]

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  • question_answer23) A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal smooth surface, collides with a nearly weightless spring of force constant\[k=50\]N/m The maximum compression of the spring would be

    A) 0.15 m

    B) 0.12 m

    C) 1.5 m

    D) 0.5 m

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  • question_answer24) A 5 A fuse wire can withstand a maximum power of 1 W in circuit. The resistance of the fuse wire is

    A) \[0.2\,\Omega \]

    B) \[5\,\Omega \]

    C) \[0.4\,\Omega \]

    D) \[0.04\,\Omega \]

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  • question_answer25) In a p-n junction photo cell, the value of the photo-electromotive force produced by monochromatic light is proportional to the

    A) barrier voltage at the p-n junction

    B) intensity of the light falling on the cell

    C) frequency of the light failing on the cell

    D) voltage applied at the p-n junction

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  • question_answer26) The Bohr model of atoms

    A) assumes that the angular momentum of electrons is quantized

    B) uses Einsteins photoelectric equation

    C) predicts continuous emission spectra for atoms

    D) predicts the same emission spectra for all types of atoms

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  • question_answer27) The coefficient of static friction,\[{{\mu }_{s}},\]between block A of mass 2 kg and the table as shown in the figure, is 0.2. What would be the maximum mass value of block B so that the two blocks do not move ? The string and the pulley are assumed to be smooth and massless \[(g=10\text{ }m/{{s}^{2}})\]

    A) 2.0kg

    B) 4.0kg

    C) 0.2kg

    D) 0.4kg

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  • question_answer28) Which one of the following statements is true for the speed v and the acceleration a of a particle executing simple harmonic motion?

    A) When v is maximum, a is maximum

    B) Value of a is zero, whatever may be the, value of v

    C) When v is zero, a is zero

    D) When v is maximum, a is zero

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  • question_answer29) Two springs of spring constants\[{{k}_{1}}\]and\[{{k}_{2}}\]are joined in series. The effective spring constant of the combination is given by

    A) \[\sqrt{{{k}_{1}}{{k}_{2}}}\]

    B) \[({{k}_{1}}+{{k}_{2}})/2\]

    C) \[{{k}_{1}}+{{k}_{2}}\]

    D) \[{{k}_{1}}{{k}_{2}}/({{k}_{1}}+{{k}_{2}})\]

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  • question_answer30) Of the diodes shown in the following diagrams, which one is reverse biased?

    A)

    B)

    C)

    D)

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  • question_answer31) A wheel having moment of inertia\[2\text{ }kg-{{m}^{2}}\]about its vertical axis, rotates at the rate of 60 rpm aboutthis axis. The torque which can stop the wheels rotation in one minute would be

    A) \[\frac{2\pi }{15}N-m\]

    B) \[\frac{\pi }{12}N-m\]

    C) \[\frac{\pi }{15}N-m\]

    D) \[\frac{\pi }{18}N-m\]

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  • question_answer32) Consider a system of two particles having masses\[{{m}_{1}}\]and\[{{m}_{2}}\]. If the particle of mass\[{{m}_{1}}\]is pushed towards the mass centre of particles through a distance d, by what distance would the particle of mass\[{{m}_{2}}\]move so as to keep the mass centre of particles at the original position?

    A) \[\frac{{{m}_{1}}}{{{m}_{1}}+{{m}_{2}}}d\]

    B) \[\frac{{{m}_{1}}}{{{m}_{2}}}d\]

    C) \[d\]

    D) \[\frac{{{m}_{2}}}{{{m}_{1}}}d\]

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  • question_answer33) If\[|\overrightarrow{A}\times \overrightarrow{B}|=\sqrt{3}\,\overrightarrow{A}.\overrightarrow{B},\]then the value of\[|\overrightarrow{A}+\overrightarrow{B}|\]is

    A) \[{{({{A}^{2}}+{{B}^{2}}+AB)}^{1/2}}\]

    B) \[{{\left( {{A}^{2}}+{{B}^{2}}+\frac{AB}{\sqrt{3}} \right)}^{1/2}}\]

    C) \[A+B\]

    D) \[{{({{A}^{2}}+{{B}^{2}}+\sqrt{3}AB)}^{1/2}}\]

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  • question_answer34) A car is moving towards a high cliff. The car driver sounds a horn of frequency\[f\]. The reflected sound heard by the driver has a frequency\[2f\]. If\[v\]be the velocity of sound, then the velocity of the car, in the same velocity units, will be

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

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

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

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

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  • question_answer35) A beam of light composed of red and green rays is incident obliquely at a point on the face of a rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from

    A) two points propagating in two different non-parallel directions

    B) two points propagating in two different parallel directions

    C) one point propagating in two different directions

    D) one point propagating in the same direction.

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  • question_answer36) The density of newly discovered planet is twice that of earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is R, the radius of the planet would be

    A) \[2R\]

    B) \[4R\]

    C) \[\frac{1}{4}R\]

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

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  • question_answer37) The refractive index of the material of a prism is \[\sqrt{2}\]and its refracting angle is\[30{}^\circ \]. One of the refracting surfaces of the prism is made a mirror inwards. A beam of monochromatic light entering the prism from the other face will retrace its path after reflection from the mirrored surface, if its angle of incidence on the prism is

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

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

    C) \[0{}^\circ \]

    D) \[30{}^\circ \]

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  • question_answer38) A stone is tied to a string of length\[l\]and is whirled in a vertical circle with the other end of the string as the centre. At a certain instant of time, the stone is at its lowest position and has a speed u. The magnitude of the change in velocity as it reaches a position where the string is horizontal (g being acceleration due to gravity) is

    A) \[\sqrt{2({{u}^{2}}-gl)}\]

    B) \[\sqrt{{{u}^{2}}-gl}\]

    C) \[u-\sqrt{{{u}^{2}}-2gl}\]

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

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  • question_answer39) A particle of mass\[{{m}_{1}}\]is moving with a velocity\[{{v}_{1}}\] and another particle of mass\[{{m}_{2}}\]is moving with a velocity\[{{v}_{2}}\]. Both of them have the same momentum but their different kinetic energies are\[{{E}_{1}}\]and\[{{E}_{2}}\]respectively. If\[{{m}_{1}}>{{m}_{2}},\]then

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

    B) \[\frac{{{E}_{1}}}{{{E}_{2}}}=\frac{{{m}_{1}}}{{{m}_{2}}}\]

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

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

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  • question_answer40) A bullet of mass 2g is having a charge of\[2\mu C\]. Through what potential difference must it be accelerated, starting from rest, to acquire a speed of 10 m/s?

    A) 5kV

    B) 50 kV

    C) 5V

    D) 50V

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  • question_answer41) . In India electricity is supplied for domestic use at 220 V. It is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in India is\[R,\] the resistance of a 60 W bulb for use in USA will be

    A) \[R\]

    B) \[2R\]

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

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

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  • question_answer42) The magnetic flux through a circuit of resistance R changes by an amount\[\Delta \phi \]in a time At. Then the total quantity of electric charge Q that passes any point in the circuit during the time Ac is represented by

    A) \[Q=\frac{1}{R}.\frac{\Delta \phi }{\Delta t}\]

    B) \[Q=\frac{\Delta \phi }{R}\]

    C) \[Q=\frac{\Delta \phi }{\Delta t}\]

    D) \[Q=R.\frac{\Delta \phi }{\Delta t}\]

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  • question_answer43) The equation of state for 5 g of oxygen at a pressure P and temperature T, when occupying a volume V, will be

    A) \[PV=(5/32)RT\]

    B) \[PV=5RT\]

    C) \[PV=(5/2)RT\]

    D) \[PV=(5/16)RT\]

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  • question_answer44) The half-life of radium is about 1600 years. Of 100 g of radium existing now, 25 g will remain unchanged after

    A) 4800 yr

    B) 6400 yr

    C) 2400 yr

    D) 3200 yr

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  • question_answer45) \[{{M}_{p}}\]denotes the mass of a proton and\[{{M}_{n}}\]that of a neutron. A given nucleus, of binding energy B, contains Z protons and N neutrons. The mass M(N, Z) of the nucleus is given by

    A) \[M(N,Z)=N{{M}_{n}}+Z{{M}_{p}}-B{{c}^{2}}\]

    B) \[M(N,Z)=N{{M}_{n}}+Z{{M}_{p}}+B{{c}^{2}}\]

    C) \[M(N,Z)=N{{M}_{n}}+Z{{M}_{p}}-B/{{c}^{2}}\]

    D) \[M(N,Z)=N{{M}_{n}}+Z{{M}_{p}}+B/{{c}^{2}}\]

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  • question_answer46) The phase difference between two waves, represented by \[{{y}_{1}}={{10}^{-6}}\sin [100t+(x/50)+0.5]m\] \[{{y}_{2}}={{10}^{-6}}\cos [100t+(x/50)]m\] where\[x\]is expressed in metres and t is expressed in seconds, is approximately

    A) 1.07rad

    B) 2.07 rad

    C) 0.5 rad

    D) 1.5 rad

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  • question_answer47) A telescope has an objective lens of 10 cm diameter and is situated at a distance of one kilometre from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wavelength of light is 5000 A, of the order of

    A) 0.5m

    B) 5m

    C) 5 mm

    D) 5 cm

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  • question_answer48) A block of mass m is placed on a smooth wedge of inclination 9. The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedge on the block (g is acceleration due to gravity) will be

    A) \[mg\text{ }cos\theta \]

    B) \[mg\text{ }\sin \,\theta \]

    C) \[mg\]

    D) \[mg/cos\,\theta \]

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  • question_answer49) Three particles, each of mass m grams situated at the vertices of an equilateral triangle ABC of side I cm (as shown in the figure). The moment of inertia of the system about a line AX perpendicular to AB and in the plane of ABC, in gram\[-c{{m}^{2}}\]units will be

    A) \[(3/4)m{{l}^{2}}\]

    B) \[2m{{l}^{2}}\]

    C) \[(5/4)m{{l}^{2}}\]

    D) \[(3/2)m{{l}^{2}}\]

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  • question_answer50) Energy\[E\]of a hydrogen atom with principal quantum number n is given by\[E=\frac{-13.6}{{{n}^{2}}}eV\]. The energy of a photon ejected when the electron jumps from\[n=3\]state to\[n=2\]state of hydrogen, is approximately

    A) 1.5eV

    B) 0.85 eV

    C) 3.4 eV

    D) 1.9eV

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  • question_answer51) Which of the following processes is reversible?

    A) Transfer of heat by radiation

    B) Electrical heating of a nichrome wire

    C) Transfer of heat by conduction

    D) Isothermal compression

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  • question_answer52) Copper has face-centred cubic (fee) lattice with interatomic spacing equal to\[2.54\overset{o}{\mathop{\text{A}}}\,\]. The value of lattice constant for this lattice is

    A) \[1.27\overset{o}{\mathop{\text{A}}}\,\]

    B) \[5.08\overset{o}{\mathop{\text{A}}}\,\]

    C) \[2.54\overset{o}{\mathop{\text{A}}}\,\]

    D) \[3.59\overset{o}{\mathop{\text{A}}}\,\]

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  • question_answer53) Choose the only false statement from the following.

    A) Substances with energy gap of the order of 10 eV are insulators

    B) The conductivity of a semiconductor increases with increase in temperature

    C) In conductors the valence and conduction bands may overlap

    D) The resistivity of a semicdnductor increases with increase in temperature

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  • question_answer54) A particle moves along a straight line OX. At a time t (in seconds) the distance\[x\] (in meters) of the particle from 0 is given by \[x=40+12t-{{t}^{3}}\] How long would the particle travel before coming to rest?

    A) 24 m

    B) 40 m

    C) 56m

    D) 16m

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  • question_answer55) Two bodies, A (of mass 1 kg) and B (of mass 3 kg) are dropped from heights of 16 m and 25 m, respectively. The ratio of the time taken by them to reach the ground is

    A) 5/4

    B) 12/5

    C) 5/12

    D) 4/5

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  • question_answer56) The angle of projection for which the horizontal range and the maximum height, of a projectile are equal is

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

    B) \[\theta ={{\tan }^{-1}}(4)\]

    C) \[\theta ={{\tan }^{-1}}(0.25)\]

    D) none of the above

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  • question_answer57) The magnetic susceptibility of a paramagnetic substance at\[-73{}^\circ C\]is 0.0060, then its value at \[-173{}^\circ C\]will be

    A) 0.0030

    B) 0.0120

    C) 0.0180

    D) 0.0045

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  • question_answer58) In single slit diffraction pattern

    A) central fringe has negligible width than others

    B) all fringes are of same width

    C) central fringes do not exist

    D) none of the above

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  • question_answer59) A hole is in the bottom of the tank having water. If total pressure at the bottom is 3 aim (1 atm \[={{10}^{5}}N-{{m}^{-2}}\]), then velocity of water flowing from hole is

    A) \[\sqrt{400}\,m{{s}^{-1}}\]

    B) \[\sqrt{600}\,m{{s}^{-1}}\]

    C) \[\sqrt{60}\,m{{s}^{-1}}\]

    D) none of these

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  • question_answer60) When you make ice cubes, the entropy of water

    A) does not change

    B) increases

    C) decreases

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

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  • question_answer61) Among the following, the pair in which the two species are not isostructural, is

    A) \[Si{{F}_{4}}\]and \[S{{F}_{4}}\]

    B) \[IO_{3}^{-}\]and\[Xe{{O}_{3}}\]

    C) \[BH_{4}^{-}\]and \[NH_{4}^{+}\]

    D) \[PF_{6}^{-}\]and\[S{{F}_{6}}\]

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  • question_answer62) The rate of first order reaction is\[1.5\times {{10}^{-2}}\]mol \[{{L}^{-1}}mi{{n}^{-1}}\]at 0.5 M concentration of the reactant. The half-life of the reaction is

    A) 0.383 min

    B) 23.1 min

    C) 8.73 min

    D) 7.53 min

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  • question_answer63) Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

    A) Polyhalogens

    B) Ferrocenes

    C) Fullerenes

    D) Freons

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  • question_answer64) Which one of the following structures represents the peptide chain?

    A) \[-\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{N}}\,-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-\underset{\begin{smallmatrix} || \\ H \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-NH-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-NH-\]

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

    C) \[-\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-\]\[\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\]

    D) \[-\underset{|}{\overset{|}{\mathop{C}}}\,-\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-\underset{\begin{smallmatrix} | \\ H \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{N}}\,\]\[-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\]

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  • question_answer65) Which one of the following can be oxidized to the corresponding carbonyl compound?

    A) 2-hydroxy-propahe

    B) ortho-nitro-phenol

    C) Phenol

    D) 2-methyl-2-hydroxy-propane

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  • question_answer66) The\[-OH\]group of an alcohol or the\[-COOH\] group of a carboxylic acid can be replaced by \[-Cl\] using

    A) phosphorus pentachloride

    B) hypochlorous acid

    C) chlorine

    D) hydrochloric acid

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  • question_answer67) Reaction of HBr with propene in the presence of peroxide gives

    A) isopropyi bromide

    B) 3-bromo propane

    C) allyl bromide

    D) n-propyl bromide

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  • question_answer68) Which is the best description of behaviour of bromine in the reaction given below? \[{{H}_{2}}O+B{{r}_{2}}\xrightarrow[{}]{{}}HBr+HOBr\]

    A) Proton accepted only

    B) Both oxidised and reduced

    C) Oxidised only

    D) Reduced only

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  • question_answer69) In a regular octahedral molecule,\[M{{X}_{6}}\]the number of\[X-M-X\]bonds at\[180{}^\circ \]is

    A) three

    B) two

    C) six

    D) four

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  • question_answer70) Chloropicrin is obtained by the reaction of

    A) steam on carbon tetrachloride

    B) nitric acid on chlorobenzene

    C) chlorineon picric acid

    D) nitric acid on chloroform

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  • question_answer71) Aniline when diazotised in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be:

    A)

    B)

    C)

    D)

    View Answer play_arrow
  • question_answer72) The standard emf of a galvanic cell involving cell reaction with\[n=2\]is found to be 0.295 V at\[25{}^\circ C\].The equilibrium constant of the reaction would be

    A) \[2.0\times {{10}^{11}}\]

    B) \[4.0\times {{10}^{12}}\]

    C) \[1.0\times {{10}^{2}}\]

    D) \[1.0\times {{10}^{10}}\] (Given:\[F=96500\text{ }C\text{ m}o{{l}^{-1}};\] \[R=8.314\text{ }J{{K}^{-1}}mo{{l}^{-1}}\])

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  • question_answer73) The solubility product of a sparingly soluble salt\[A{{X}_{2}}\]is\[3.2\times {{10}^{-11}}\]. Its solubility (in mol/L) is

    A) \[5.6\times {{10}^{-6}}\]

    B) \[3.1\times {{10}^{-4}}\]

    C) \[2\times {{10}^{-4}}\]

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

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  • question_answer74) Among\[K,Ca,Fe\]and\[Zn,\]the element which can. form more than one binary compound with chlorine is

    A) \[Fe\]

    B) \[Zn\]

    C) \[K\]

    D) \[Ca\]

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  • question_answer75) Which one of the following statements about the zeolites is false?

    A) They are used as cation exchangers

    B) They have open structure which enables them to take up small molecules

    C) Zeolites are aluminosilicates having three dimensional network

    D) Some of the\[SiO_{4}^{4-}\]units are replaced by \[AlO_{4}^{5-}\]and\[AlO_{6}^{9-}\]ions in zeolites

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  • question_answer76) Which of the following will not form. a yellow precipitate on heating with an alkaline solution of iodine?

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

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

    C)  \[C{{H}_{3}}OH\]

    D)  \[C{{H}_{3}}C{{H}_{2}}OH\]

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  • question_answer77) A sequence of how many nucleotides in messenger RNA makes a codon for an ammo acid?

    A) Three

    B) Four

    C) One

    D) Two

    View Answer play_arrow
  • question_answer78) Which of the following is considered to be an anticancer species?

    A)

    B)

    C)

    D)

    View Answer play_arrow
  • question_answer79) The hormone that helps in the conversion of glucose to glycogen is

    A) cortisone

    B) bile acids

    C) adrenaline

    D) insulin

    View Answer play_arrow
  • question_answer80) If the bond energies of\[H-H,Br-Br\]and \[H-Br\]are 433, 192 and\[364\text{ }kJ\text{ }mo{{l}^{-1}}\]respectively, then\[\Delta H{}^\circ \]for the reaction \[{{H}_{2}}(g)+B{{r}_{2}}(g)\xrightarrow[{}]{{}}2HBr(g)\]is

    A) \[-261\text{ }kJ\]

    B) \[+103\text{ }kJ\]

    C) \[+261\text{ }kJ\]

    D) \[-103kJ\]

    View Answer play_arrow
  • question_answer81) A compound formed by elements X and Y crystallizes in a cubic structure in which the X atoms are at the comers of a cube and the Y atoms are at the face-centres. The formula of the compound is

    A) \[X{{Y}_{3}}\]

    B) \[{{X}_{3}}Y\]

    C) \[XY\]

    D) \[X{{Y}_{\,}}_{2}\]

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  • question_answer82) Standard enthalpy and standard entropy changes for the oxidation of ammonia at 298K are\[-382.64kJ\,mo{{l}^{-1}}\]and\[-145.6\text{ }J{{K}^{-1}}mo{{l}^{-2}}\] respectively. Standard Gibbs energy change for the same reaction at 298K is

    A) \[-2221.1kJ\text{ }mo{{l}^{-1}}\]

    B) \[-339.3\text{ }kJ\text{ }mo{{l}^{-1}}\]

    C) \[-439.3\text{ }kJ\text{ }mo{{l}^{-1}}\]

    D) \[-523.2\text{ }kJ\text{ }mo{{l}^{-1}}\]

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  • question_answer83) The maximum number of molecules is present in

    A) 15 L of\[{{H}_{2}}\]gas at STP

    B) 5 L of\[{{N}_{2}}\]gas at STP

    C) 0.5 g of\[{{H}_{2}}\]gas

    D) 10 g of\[{{O}_{2}}\]gas

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  • question_answer84) The radioactive isotope\[_{27}^{60}Co\]which is used in the treatment of cancer can be made by\[(n,\text{ }p)\]reaction. For this reaction the target nucleus is

    A) \[_{28}^{59}Ni\]

    B) \[_{27}^{59}Co\]

    C) \[_{28}^{60}Ni\]

    D) \[_{27}^{60}Co\]

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  • question_answer85) The enzyme which hydrolyses triglycerides to fatty acids and glycerol is called

    A) maltase

    B) lipase

    C) zymase

    D) pepsin

    View Answer play_arrow
  • question_answer86) Which of the following coordination compounds would exhibit optical isomerism?

    A) Pentaamminenitrocobalt (III) iodide

    B) Diamminedinitroplatinum (II)

    C) trayy-dicyanobis (ethylenediamine)

    D) Tris-(ethylendiamine) cobalt (III) bromide

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  • question_answer87) Among\[{{[Ni{{(CO)}_{4}}]}^{2-}},{{[Ni{{(CN)}_{4}}]}^{2-}},{{[NiC{{l}_{4}}]}^{2-}}\]species, the hybridisation states of the Ni atom are, respectively (At. no. of\[Ni=28\])

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

    B) \[s{{p}^{3}},\text{ }ds{{p}^{2}},\text{ }s{{p}^{3}}\]

    C) \[s{{p}^{3}},\text{ }s{{p}^{3}},\text{ }ds{{p}^{2}}\]

    D) \[ds{{p}^{2}},\text{ }s{{p}^{3}},\text{ }sp\]

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  • question_answer88) Among the following series of transition metal ions, the one in which all metal ions have\[3{{d}^{2}}\] \[3{{d}^{2}}\]electronic configuration is (At. no.: \[Ti=22;\] \[V=23;\text{ }Cr=24;\text{ }Mn=25\])

    A) \[T{{i}^{3+}},{{V}^{2+}},C{{r}^{3+}},M{{n}^{4+}}\]

    B) \[T{{i}^{+}},{{V}^{4+}},C{{r}^{6+}},M{{n}^{7+}}\]

    C) \[T{{i}^{4+}},{{V}^{3+}},C{{r}^{2+}},M{{n}^{3+}}\]

    D) \[T{{i}^{2+}},{{V}^{3+}},C{{r}^{4+}},M{{n}^{5+}}\]

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  • question_answer89) The rapid change of pH near the stoichiometric point of an add base titration is the basis of indicator detection, pH of the solution is related to ratio of the concentrations of the conjugate acid (HIn) and base\[(I{{n}^{-}})\]forms of the indicator given by the expression

    A) \[\log \frac{[I{{n}^{-}}]}{[HIn]}=p{{K}_{In}}-pH\]

    B) \[\log \frac{[H{{n}^{-}}]}{[I{{n}^{-}}]}=p{{K}_{In}}-pH\]

    C) \[\log \frac{[HIn]}{[I{{n}^{-}}]}=pH-p{{K}_{In}}\]

    D) \[\log \frac{[I{{n}^{-}}]}{[HIn]}=pH-p{{K}_{In}}\]

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  • question_answer90) \[C{{N}^{-}}\]is strong field ligand. This is due to the fact that

    A) it carries negative charge.

    B) it is a pseudohalide

    C) it can accept electrons from metal species

    D) it forms high spin complexes with metal species

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  • question_answer91) Considering\[{{H}_{2}}O\]as weak field ligand, the number of unpaired electrons in\[{{[Mn{{({{H}_{2}}O)}_{6}}]}^{2+}}\]will be (At. no. of \[Mn=25\])

    A) three

    B) five

    C) two

    D) four

    View Answer play_arrow
  • question_answer92) Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is

    A) \[\Delta {{S}_{system}}+\Delta {{S}_{surroundings}}>0\]

    B) \[\Delta {{S}_{system}}-\Delta {{S}_{surroundings}}>0\]

    C) \[\Delta {{S}_{system}}>0\]only

    D) \[\Delta {{S}_{surroundings}}>0\]only

    View Answer play_arrow
  • question_answer93) \[{{H}_{2}}O\]is dipolar, whereas\[Be{{F}_{2}}\]is not. It is because

    A) the electronegativity of F is greater than that of 0

    B) \[{{H}_{2}}O\]involves hydrogen bonding whereas \[Be{{F}_{2}}\]is a discrete molecule

    C) \[{{H}_{2}}O\]is linear and\[Be{{F}_{2}}\]is angular

    D) \[{{H}_{2}}O\]is angular and\[Be{{F}_{2}}\]is linear

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  • question_answer94) Ionic radii are

    A) inversely proportional to effective nuclear charge

    B) inversely proportional to square of effective nuclear charge

    C) directly proportional to effective nuclear charge

    D) directly proportional to square of effective nuclear charge

    View Answer play_arrow
  • question_answer95) Which of the following does not have a metal-carbon bond?

    A) \[Al{{(O{{C}_{2}}{{H}_{5}})}_{3}}\]

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

    C) \[K[Pt({{C}_{2}}{{H}_{4}})C{{l}_{3}}]\]

    D) \[Ni{{(CO)}_{4}}\]

    View Answer play_arrow
  • question_answer96) Lanthanides are

    A) 14 elements in the sixth period (atomic no. = 90 to 103) that are filling\[4f\]sub-level

    B) 14 elements in the seventh period (atomic no. = 90 to 103) that are filling\[5f\]sub-level

    C) 14 elements in the sixth period (atomic no.= 58 to 71) that are filling\[4f\]sub-level

    D) 14 elements in the seventh period (atomic no. = 58 to 71) that are filling\[4f\]sub-level

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  • question_answer97) Which of the following forms cationic micelles above certain concentration?

    A) Sodium ethyl sulphate

    B) Sodium acetate

    C) Urea

    D) Cetyltrimethylammdnium bromide

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  • question_answer98) Which one of the following is a chain growth polymer?

    A) Starch

    B) Nucleic acid

    C) Polystyrene

    D) Protein

    View Answer play_arrow
  • question_answer99) The correct statement in respect of protein haemoglobin is that it

    A) functions as a catalyst for biological reactions

    B) maintains blood sugar level

    C) act as an oxygen carrier in the blood

    D) forms antibodies and offers resistance to diseases

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  • question_answer100) The frequency of radiation emitted when the electron falls from\[n=4\]to\[n=1\]in a hydrogen atom will be (Given ionisation energy of\[H=\]\[2.18\text{ }{{10}^{-18}}J\text{ }ato{{m}^{-1}}\]and\[h=6.625\times {{10}^{-34}}Js\])

    A) \[1.54\times {{10}^{15}}{{s}^{-1}}\]

    B) \[1.03\times {{10}^{15}}{{s}^{-1}}\]

    C) \[3.08\times {{10}^{15}}{{s}^{-1}}\]

    D) \[2.00\times {{10}^{15}}{{s}^{-1}}\]

    View Answer play_arrow
  • question_answer101) Camphor is often used in molecular mass determination because

    A) it is readily available

    B) it has a very high cryoscopic constant

    C) it is volatile

    D) it is solvent for organic substances

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  • question_answer102) In an octahedral structure, the pair of d orbitals involved in\[{{d}^{2}}s{{p}^{3}}\]hybridisation is

    A) \[{{d}_{{{x}^{2}}-{{y}^{2}}}},{{d}_{{{z}^{2}}}}\]

    B) \[{{d}_{xy}},{{d}_{{{x}^{2}}-{{y}^{2}}}}\]

    C) \[{{d}_{{{z}^{2}}}},{{d}_{xz}}\]

    D) \[{{d}_{xy}},{{d}_{yz}}\]

    View Answer play_arrow
  • question_answer103) Number of chiral carbon atoms in\[{{\beta }_{D-(+)-}}\]glucose is

    A) five

    B) six

    C) three

    D) four

    View Answer play_arrow
  • question_answer104) The helical structure of protein is stabilized by

    A) dipeptide bonds

    B) hydrogen bonds

    C) ether bonds

    D) peptide bonds

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  • question_answer105) Which of the, following is least reactive in a nucleophilic substitution reaction?

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

    B) \[C{{H}_{2}}=CHCl\]

    C) \[C{{H}_{3}}C{{H}_{2}}Cl\]

    D) \[C{{H}_{2}}=CHC{{H}_{2}}Cl\]

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  • question_answer106) The work done during the expansion of a gas from a volume of\[\text{4 }d{{m}^{3}}\]to \[6\text{ }d{{m}^{3}}\]against a constant external pressure of 3 atm, is

    A) \[-6\text{ }J\]

    B) \[-608\text{ }J\]

    C) \[+304\text{ }J\]

    D) \[-304\,J\]

    View Answer play_arrow
  • question_answer107) In\[Br{{F}_{3}}\]molecule, the lone pairs occupy equatorial positions to minimize

    A) lone pair-bond pair repulsion only

    B) bond pair-bond pair repulsion only

    C) lone pair-lone pair repulsion and lone pair-bond pair repulsion

    D) lone pair-lone pair repulsion only

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  • question_answer108) Using anhydrous\[AlC{{l}_{3}}\]as catalyst, which one of the following reactions produce ethylbenzene (PhEt)?

    A) \[{{H}_{3}}C-C{{H}_{2}}OH+{{C}_{6}}{{H}_{6}}\]

    B) \[C{{H}_{3}}-CH=C{{H}_{2}}+{{C}_{6}}{{H}_{6}}\]

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

    D) \[{{H}_{3}}C-C{{H}_{3}}+{{C}_{6}}{{H}_{6}}\]

    View Answer play_arrow
  • question_answer109) The molecular formula of diphenyl methane is \[{{C}_{13}}{{H}_{12}}\] How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom?

    A) 6

    B) 4

    C) 8

    D) 7

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  • question_answer110) A solid compound X on heating gives\[C{{O}_{2}}\]gas and a residue. The residue mixed with water forms on passing an excess of\[C{{O}_{2}}\]through T in water, a clear solution, Z is obtained. On boiling Z compound X is reformed. The compound X is

    A) \[Ca{{(HC{{O}_{3}})}_{2}}\]

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

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

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

    View Answer play_arrow
  • question_answer111) lodoform test is not given by

    A) \[HCHO\]

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

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

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

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  • question_answer112) When\[{{H}_{2}}S\]gas is passed in a metal sulphate solution in presence of\[N{{H}_{4}}OH,\]a white precipitate is produced. The metal is identified as

    A) Zn

    B) Fe

    C) \[Pb\]

    D) Hg

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  • question_answer113) The value of amu is which of the following?

    A) \[1.57\times {{10}^{-24}}kg\]

    B) \[1.66\times {{10}^{-24}}kg\]

    C) \[1.99\times {{10}^{-24}}kg\]

    D) \[1.66\times {{10}^{-24}}kg\]

    View Answer play_arrow
  • question_answer114) Sodium pyrophosphate is represented by which of the following formula?

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

    B) \[N{{a}_{4}}{{P}_{2}}{{O}_{5}}\]

    C) \[N{{a}_{4}}{{P}_{2}}{{O}_{7}}\]

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

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  • question_answer115) The IUPAC name of the following compound is

    A) bicyclo [2.2.0] octane

    B) bicyclo [0.2.2] hexane

    C) bicyclo [2.1.1] hexane

    D) bicyclo [2.2.0] hexane

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  • question_answer116) By which one of the following compounds both \[C{{H}_{4}}\]and\[C{{H}_{3}}-C{{H}_{3}}\]can be prepared in one step?

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

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

    C) \[C{{H}_{3}}C{{H}_{2}}I\]

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

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  • question_answer117) \[A+B=C+D\]. If initially the concentration of A and B are both equal but at equilibrium concentration of D will be twice of that of, A then what will be the equilibrium constant of reaction?

    A) 4/9

    B) 9/4

    C) 1/9

    D) 4

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  • question_answer118) Which of the following is secondary pollutant?

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

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

    C) PAN

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

    View Answer play_arrow
  • question_answer119) The geometry of\[Ni{{(CO)}_{4}}\]and \[Ni{{(PP{{h}_{3}})}_{2}}C{{l}_{2}}\]are

    A) both square planar

    B) tetrahedral and square planar respectively

    C) both tetrahedral

    D) square planar and tetrahedral respectively

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  • question_answer120) In Williamsons synthesis, .ethoxyethane is prepared by

    A) passing ethanol over heated alumina

    B) heating sodium ethoxide with ethyl bromide

    C) treating ethyl alcohol with excess of\[{{H}_{2}}S{{O}_{4}}\]at 430-440 K

    D) heating ethanol with dry\[A{{g}_{2}}O\]

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  • question_answer121) One of the parents of a cross has mutation in its mitochondria. In that cross, that parent is taken as a male. During segregation of\[{{F}_{2}}\] progenies that mutation is found in

    A) one-third of the progenies

    B) none of the progenies

    C) all of the progenies

    D) fifty percent of the progenies.

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  • question_answer122) When a freshwater protozoan possessing a contractile vacuole, is placed in a glass containing marine water, the vacuole will

    A) increase in number

    B) disappear

    C) increase in size

    D) decrease in size

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  • question_answer123) Which one of the following is a very unique feature of the mammalian body?

    A) Homeothermy

    B) Presence of diaphragm

    C) Four chambered heart

    D) Rib cage

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  • question_answer124) When\[C{{O}_{3}}\]concentration in blood increases, breathing becomes

    A) shallower and slow

    B) there is no effect on breathing

    C) slow and deep

    D) faster and deeper

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  • question_answer125) Uricotelism is found in

    A) mammals and birds

    B) fishes and freshwater protozoans

    C) birds, reptiles and insects

    D) frogs and toads

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  • question_answer126) Duodenum has characteristic Brunners glands which secrete two hormones called

    A) kinase, oestrogen

    B) secretin, cholecystokinin

    C) prolactin, parathormone

    D) estradion, progesterone

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  • question_answer127) Cancer cells are more easily damaged by radiation than normal cells because they are

    A) starved of mutation

    B) undergoing rapid division

    C) different in structure

    D) non-dividing

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  • question_answer128) ATPase enzyme needed for muscle contraction is located in

    A) actinin

    B) troponin

    C) myosin

    D) actin

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  • question_answer129) Which one of the following is not correctly matched?

    A) Glossina palpalis - Sleeping sickness

    B) Culexpipiens -Filariasis

    C) Aedes aegypti - Yellow fever

    D) Anopheles culifacies - Leishmaniasis

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  • question_answer130) Which one of the following pairs is not correctly matched?

    A) Screptomyces - Antibiotic

    B) Serratia - Drug addiction

    C) Spirulina - Single cell protein

    D) Rhizobium - Biofertilizer

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  • question_answer131) A major component of gobar gas is

    A) ammonia

    B) methane

    C) ethane

    D) butane

    View Answer play_arrow
  • question_answer132) A free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is

    A) Tolypothrix

    B) Chlorella

    C) Nostoc

    D) Anabaena

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  • question_answer133) In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be

    A) B

    B) \[O\]

    C) AB

    D) A

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  • question_answer134) Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?

    A) Luteinizing hormone - Failure of ovulation

    B) Insulin - Diabetes insipidus

    C) Thyroxine - Tetany

    D) Parathyroid hormone - Diabetes mellitus

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  • question_answer135) In a mutational event, when adenine is replaced by guanine, it is the case of

    A) frameshift mutation

    B) transcription

    C) transition

    D) transversion

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  • question_answer136) An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is

    A) hemitropous

    B) campylotropous

    C) anatropous

    D) orthotropous

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  • question_answer137) Injury to vagus nerve in human is not likely to affect

    A) tongue movements

    B) gastrointestinal movements

    C) pancreatic secretion

    D) cardiac movements

    View Answer play_arrow
  • question_answer138) Which of the following hormones is not a secretion product of human placenta?

    A) Human chorionic gonadotropin

    B) Prolactin

    C) Oestrogen

    D) Progesterone

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  • question_answer139) Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct? The patient has been in hailing polluted air containing usually high content of

    A) carbon disulphide

    B) chloroform

    C) carbon dioxide

    D) carbon monoxide

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  • question_answer140) DNA finger printing refers to

    A) molecular analysis of profiles of DNA samples

    B) analysis of DNA samples using imprinting device

    C) techniques used for molecular analysis of different specimens of DNA

    D) techniques used for identification of finger prints of individuals

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  • question_answer141) Flagella of prokaryotic and eukaryotic cells differ in

    A) type of movement and placement in cell

    B) location in cell and mode of functioning

    C) micro-tubular organisation and type of movement

    D) micro-tubular organisation and function

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  • question_answer142) In which one of the following enzymes, copper is necessarily associated as an activator?

    A) Carbonic anhydrase.

    B) Tryptophanase

    C) Lactic dehydrogenase

    D) Tyrosinase

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  • question_answer143) Which one of the following is the correct matching of a vitamin, its nature and its deficiency disease?

    A) Vitamin-A - Fat soluble Night blindness

    B) Vitamin-K - Fat soluble Beri-beri

    C) Vitamin-A - Fat soluble Beri-beri

    D) Vitamin-K - Water soluble Pellagra

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  • question_answer144) Lack of independent assortment of two genes A and B in fruit fly Drosophila is due to

    A) repulsion

    B) recombination

    C) linkage

    D) crossing over

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  • question_answer145) In your opinion, which is the most effective way to conserve the plant diversity of an area?

    A) By tissue culture method

    B) By creating biosphere reserve

    C) By creating botanical garden

    D) By developing seed bank

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  • question_answer146) Which of the following is expected to have the highest value\[(gm/{{m}^{2}}/yr)\]in a grassland ecosystem?

    A) Secondary Production (SP)

    B) Tertiary Production (TP)

    C) Gross Production (GP)

    D) Net Production (NP)

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  • question_answer147) In 1984, the Bhopal gas tragedy took place because methyl isocyanate

    A) reacted with DDT

    B) reacted with ammonia

    C) reacted with\[C{{O}_{2}}\]

    D) reacted with water

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  • question_answer148) If by radiation all nitrogenase enzymes are inactivated, then there will be no

    A) fixation of nitrogen in legumes

    B) fixation of atmospheric nitrogen

    C) conversion from nitrate to nitrite in legumes

    D) conversion from ammonium to nitrate in soil

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  • question_answer149) Lead concentration in blood is considered alarming if it is

    A) \[20\mu g/100\,mL\]

    B) \[30\mu g/100\,mL\]

    C) \[4-6\mu g/100\,mL\]

    D) \[10\mu g/100\,mL\]

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  • question_answer150) What kind of evidence suggested that man is more closely related with chimpanzee than with other hominoid apes?

    A) Evidence from DNA from sex chromosomes only

    B) Comparis.on of chromosomes morphology only

    C) Evidence from fossil remains and the fossil mitochondrial DNA alone

    D) Evidence from DNA extracted from sex chromosome, autosomes and mitochondria

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  • question_answer151) Anthesis is a phenomenon which refers to

    A) reception of pollen by stigma

    B) formation of pollen

    C) development of anther

    D) opening of flower bud

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  • question_answer152) One set of a plant was grown at 12 hours day and 12 hours night period cycles and it flowered while in the other set night phase was interrupted by flash of light and it did not produce flower. Under which one of the following categories will you place this plant?

    A) Long day

    B) Darkness neutral

    C) Day neutral

    D) Short day

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  • question_answer153) In which one of the following pairs is the specific characteristic of soil not correctly matched?

    A) Laterite - Contains aluminium compound

    B) Terra rossa - Most suitable for roses

    C) Chemozems - Richest soil in the world

    D) Black soil - Rich in calcium carbonate

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  • question_answer154) Recently Govt. of India has allowed mixing of alcohol in petrol. What is the amount of alcohol permitted for mixing in petrol?

    A) 2.5%

    B) 10-15%

    C) 10%

    D) 5%

    View Answer play_arrow
  • question_answer155) In a longitudinal section of a root, starting from the tip upward the four zones occur in the following order

    A) root cap, cell division, cell enlargement, cell maturation

    B) root cap, cell division, cell maturation, cell enlargement

    C) cell division, cell enlargement, cell maturation, root cap

    D) cell division, cell maturation, cell enlargement, root cap

    View Answer play_arrow
  • question_answer156) An ecosystem which can be easily damaged but can recover after some time if damaging effect stops, will be having

    A) low stability and high resilience

    B) high stability and low resilience

    C) low stability and low resilience

    D) high stability and high resilience

    View Answer play_arrow
  • question_answer157) During transcription, the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be

    A) TATGC

    B) TCTGG

    C) UAUGC

    D) UATGG

    View Answer play_arrow
  • question_answer158) Extranuclear inheritance is a consequence of presence of genes in

    A) mitochondria and chloroplasts

    B) endoplasmic reticulum and mitochondria

    C) ribosomes and chloroplast

    D) lysosomes and ribosomes

    View Answer play_arrow
  • question_answer159) Which one of the following hormones is a modified amino acid?

    A) Epinephrine

    B) Progesterone

    C) Prostaglandin

    D) Oestrogen

    View Answer play_arrow
  • question_answer160) Viruses that infect bacteria, multiply and cause their lysis, are called

    A) lysozymes

    B) lipolytic

    C) lytic

    D) lysogenic

    View Answer play_arrow
  • question_answer161) The recessive genes located on X-chromosome in humans are always

    A) lethal

    B) sub-lethal

    C) expressed in males

    D) expressed in females

    View Answer play_arrow
  • question_answer162) In\[{{C}_{3}}\]plants, the first stable product of photosynthesis during the dark reaction is

    A) malic acid

    B) oxaloacetic acid

    C) 3-phosphoglyceric acid

    D) phosphoglyceraldehyde

    View Answer play_arrow
  • question_answer163) Crossing over that results in genetic recombination in higher organisms occurs between

    A) sister chromatids of bivalent

    B) non-sister chromatids of a bivalent

    C) two daughter nuclei

    D) two different bivalerits

    View Answer play_arrow
  • question_answer164) Which of the following statements is not true for retroviruses?

    A) DNA is not present at any stage in the life cycle of retroviruses

    B) Retroviruses carry gene for RNA dependent DNA polymerase

    C) The genetic material in mature retroviruses is RNA

    D) Retroviruses are causative agents for certain kinds of cancer in man

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  • question_answer165) Restriction endonucleases

    A) are present in mammalian cells for degradation of DNA when the cell dies

    B) are used in genetic engineering for ligating two DNA molecules

    C) are used for in vitro DNA synthesis

    D) are synthesized by bacteria as part of their defence mechanism

    View Answer play_arrow
  • question_answer166) In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive

    A) \[{{K}^{+}}\]into the cell

    B) \[{{K}^{+}}\]and\[N{{a}^{+}}\]out of the cell

    C) \[N{{a}^{+}}\]into the cell

    D) \[N{{a}^{+}}\]out of the cell

    View Answer play_arrow
  • question_answer167) The maximum growth rate occurs in

    A) stationary phase

    B) senescent phase

    C) lag phase

    D) exponential phase

    View Answer play_arrow
  • question_answer168) Diversification in plant life appeared

    A) due to long periods of evolutionary changes

    B) due to abrupt mutations

    C) suddenly on earth

    D) by seed dispersal

    View Answer play_arrow
  • question_answer169) The technique of obtaining large number of plantlets by tissue culture method is called

    A) plantlet culture

    B) organ culture

    C) micro-propagation

    D) macro-propagation

    View Answer play_arrow
  • question_answer170) Cell elongation in internodal regions of the green plants takes place due to

    A) indole acetic acid

    B) cytokinins

    C) gibberellins

    D) ethylene

    View Answer play_arrow
  • question_answer171) A terrestrial animal must be able to

    A) excrete large amounts of water in urine

    B) conserve water

    C) actively pump salts out through the skin

    D) excrete large amounts of salts in urine

    View Answer play_arrow
  • question_answer172) A male human is heterozygous for autosomal genes A and B and is also hemizygous for haemophilic gene h. What proportion of his sperms will be abh?

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

    B) \[\frac{1}{32}\]

    C) \[\frac{1}{16}\]

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

    View Answer play_arrow
  • question_answer173) Edible part of mango is

    A) endocarp

    B) receptacle

    C) epicarp

    D) mesocarp

    View Answer play_arrow
  • question_answer174) In chloroplasts, chlorophyll is present in the

    A) outer membrane

    B) inner membrane

    C) thylakoids

    D) stroma

    View Answer play_arrow
  • question_answer175) In glycolysis, during oxidation electrons are removed by

    A) ATP

    B) glyceraldehyde-3-phosphate

    C) \[NA{{D}^{+}}\]

    D) molecular oxygen

    View Answer play_arrow
  • question_answer176) Dough kept over-night in warm weather becomes soft and spongy because of

    A) absorption of carbon dioxide from atmosphere

    B) fermentation

    C) cohesion

    D) osmosis

    View Answer play_arrow
  • question_answer177) In the somatic cell cycle

    A) in\[{{G}_{1}}\] phase DNA content is double the amount of DNA present in the original cell

    B) DNA replication takes place in S-phase

    C) a short interphase is followed by a long mitotic phase

    D) 62 phase follows mitotic phase

    View Answer play_arrow
  • question_answer178) A nutritionally wild type organism, which does not require any additional growth supplement is known as

    A) phenotype

    B) holotype

    C) auxotroph

    D) prototroph

    View Answer play_arrow
  • question_answer179) Which of the following propagates through leaf-tip?

    A) Walking fem

    B) Sprout-leaf plant

    C) Marchantia

    D) Moss

    View Answer play_arrow
  • question_answer180) Common indicator organism of .water pollution is

    A) Lemna pancicostata

    B) Eichhomia crassipes

    C) Escherichia coli

    D) Entamoeba histolytica

    View Answer play_arrow
  • question_answer181) ELISA is used to detect viruses, where

    A) DNA probes are required

    B) southern blotting is done

    C) alkaline phosphatase is the key reagent

    D) catalase is the key reagent

    View Answer play_arrow
  • question_answer182) If you are provided with root-tips of onion in your class and are asked to count the chromosomes, which of the following stages can you most conveniently look into?

    A) Metaphase

    B) Telophase

    C) Anaphase

    D) Prophase

    View Answer play_arrow
  • question_answer183) When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is

    A) tetraploidy

    B) pentaploidy

    C) diploidy

    D) triploidy

    View Answer play_arrow
  • question_answer184) Indias wheat yield revolution in the 1960s was possible primarily due to

    A) hybrid seeds

    B) increased chlorophyll content

    C) mutations resulting in plant height reduction

    D) quantitative trait mutations

    View Answer play_arrow
  • question_answer185) The most likely reason for the development of resistance against pesticides in insect damaging a crop is

    A) random mutations

    B) genetic recombination

    C) directed mutations

    D) acquired lieritable changes

    View Answer play_arrow
  • question_answer186) The following ratio is generally constant for a given species

    A) \[A+G/C+T\]

    B) \[T+C/G+A\]

    C) \[G+C/A+T\]

    D) \[A+C/T+G\]

    View Answer play_arrow
  • question_answer187) A self-fertilizing trihybrid plant forms

    A) 8 different gametes and 64 different zygotes

    B) 4 different gametes and 16 different zygotes

    C) 8 different gametes and 16 different zygotes

    D) 8 different gametes and 32 different zygotes

    View Answer play_arrow
  • question_answer188) Lichens are well known combination of an alga and a fungus where fungus has

    A) a saprophytic relationship with the alga

    B) an epiphytic relationship with the alga

    C) a parasitic relationship with the alga

    D) a symbiotic relationship with the alga

    View Answer play_arrow
  • question_answer189) In oogamy, fertilization involves

    A) a small non-motile female gamete and a large motile male gamete

    B) a large non-motile female gamete and a small motile male gamete

    C) a large non-motile female gamete and a small non-motile male gamete

    D) a large motile female gamete and a small non-motile male gamete

    View Answer play_arrow
  • question_answer190) Which one of the following is a liying fossil?

    A) Cycas

    B) Moss

    C) Saccharomyces

    D) Spirogyra

    View Answer play_arrow
  • question_answer191) Which form of RNA has a structure resembling clover leaf?

    A) \[rRNA\]

    B) \[hnRNA\]

    C) \[mRNA\]

    D) \[tRNA\]

    View Answer play_arrow
  • question_answer192) The telomeres of eukaryotic chromosomes consists of short sequences of

    A) thymine rich repeats

    B) cytosine rich repeats

    C) adenine rich repeats

    D) guanine rich repeats

    View Answer play_arrow
  • question_answer193) After a mutation at a genetic locus the character of an organism changes due to the change in

    A) protein structure

    B) DNA replication

    C) protein synthesis pattern

    D) RNA transcription pattern

    View Answer play_arrow
  • question_answer194) During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and

    A) RNA primers are involved

    B) is facilitated by telomerase

    C) moves in one direction of the site

    D) moves in bi-directional way

    View Answer play_arrow
  • question_answer195) Plants adapted to low light intensity have

    A) larger photosynthetic unit size than the sun plants

    B) higher rate of\[C{{O}_{3}}\]fixation than the sun plants

    C) more extended root system

    D) leaves modified to spines

    View Answer play_arrow
  • question_answer196) The Ti plasmid, is often used for making trans genie plants. This plasmid is found in

    A) Azotobacter

    B) Rhizobium of the roots of leguminous plants

    C) Agrobacterium

    D) Yeast as a 2 u m plasmid

    View Answer play_arrow
  • question_answer197) According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?

    A) Methane

    B) Oxygen

    C) Hydrogen

    D) Water vapour

    View Answer play_arrow
  • question_answer198) The most thoroughly studied of the known bacteria-plant interactions is the

    A) cyanobacterial symbiosis with some. aquatic ferns

    B) gall formation on certain angiosperms by Agrobacterium

    C) nodulation of Sesbania stems by nitrogen fixing bacteria

    D) plant growth stimulation by phosphate solublising bacteria

    View Answer play_arrow
  • question_answer199) In transgenics, expression of .transgene in target tissue is determined by

    A) enhancer

    B) transgene

    C) promoter

    D) reporter

    View Answer play_arrow
  • question_answer200) A normal woman whose father was colourblind is married to a normal man. The sons would be

    A) 75% colourblind

    B) 50% colourblind

    C) all normal

    D) all colourblind

    View Answer play_arrow
  • question_answer201) Directions: Choose the correct alternative to fill in the blank. Hardly had he arrived ...... it started raining.

    A) after

    B) than

    C) when

    D) before

    View Answer play_arrow
  • question_answer202) Directions: Choose the correct alternative to fill in the blank. He was told not to worry ...... the matter.

    A) with

    B) for

    C) about

    D) of

    View Answer play_arrow
  • question_answer203) Directions: Choose the correct alternative to fill in the blank. My friend has a strange habit of turning ...... at odd hours.

    A) over

    B) up

    C) down

    D) out

    View Answer play_arrow
  • question_answer204) Directions: Choose the correct alternative to fill in the blank. You should adhere ......your principles.

    A) upon

    B) on

    C) with

    D) to

    View Answer play_arrow
  • question_answer205) Directions: Choose the correct alternative to fill in the blank. Portia compared Mercy ...... the gentle rain from heaven.

    A) to

    B) by

    C) with

    D) from

    View Answer play_arrow
  • question_answer206) Directions: Choose the alternative which best expresses the meaning of the idiom/phrase given in italics in the sentence. He will win this election hands down.

    A) win easily

    B) win with a big margin

    C) win with a narrow margin

    D) win luckily

    View Answer play_arrow
  • question_answer207) Directions: Choose the alternative which best expresses the meaning of the idiom/phrase given in italics in the sentence. He has been working on and off for several years on this research project.

    A) at intervals

    B) continuously

    C) rarely

    D) painstakingly

    View Answer play_arrow
  • question_answer208) Directions: Choose the alternative which best expresses the meaning of the idiom/phrase given in italics in the sentence. He was a king who ruled his subjects with a high hand.

    A) oppressively

    B) kindly

    C) conveniently

    D) sympathetically

    View Answer play_arrow
  • question_answer209) Directions: Choose the alternative which best expresses the meaning of the idiom/phrase given in italics in the sentence. It will be wise on your part to let the bygones be bygones.

    A) resist the past

    B) ignore the past

    C) recollect the past

    D) revive the past

    View Answer play_arrow
  • question_answer210) Directions: Choose the alternative which best expresses the meaning of the idiom/phrase given in italics in the sentence. He always says that he will help, but when it comes to the crunch, he does nothing.

    A) decisive moment

    B) confused situation

    C) difficult time

    D) troublesome moment

    View Answer play_arrow
  • question_answer211) Directions: Choose the word which is most nearly the same in meaning to the word given in capital letters. RELUCTANT

    A) Ready

    B) Willing

    C) Hesitating

    D) Inclined

    View Answer play_arrow
  • question_answer212) Directions: Choose the word which is most nearly the same in meaning to the word given in capital letters. ADMIT

    A) Adjourn

    B) Confess

    C) Relate

    D) Commit

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  • question_answer213) Directions: Choose the word which is most nearly the same in meaning to the word given in capital letters. DOWDY

    A) Unstylish

    B) Elegant

    C) Rakish

    D) Corpulent

    View Answer play_arrow
  • question_answer214) Directions: Choose the word which is most nearly the same in meaning to the word given in capital letters. ASSUAGE

    A) Rub

    B) Prohibit

    C) Ease

    D) Enlarge

    View Answer play_arrow
  • question_answer215) Directions: Choose the word which is most nearly the same in meaning to the word given in capital letters. RECKLESS

    A) Daring

    B) Bold

    C) Rash

    D) Courageous

    View Answer play_arrow
  • question_answer216) Directions: Choose the word which is opposite in meaning to the word given in capital letters. FICKLE

    A) Diseased

    B) Fast

    C) Constant

    D) Quick

    View Answer play_arrow
  • question_answer217) Directions: Choose the word which is opposite in meaning to the word given in capital letters. PASSIONATE

    A) Calm

    B) Arrogant

    C) Sure

    D) Fervent

    View Answer play_arrow
  • question_answer218) Directions: Choose the word which is opposite in meaning to the word given in capital letters. CHOICE

    A) Refusal

    B) Dilemma

    C) Harm

    D) Approval

    View Answer play_arrow
  • question_answer219) Directions: Choose the word which is opposite in meaning to the word given in capital letters. DAINTY

    A) Splendid

    B) Aggressive

    C) Vigorous

    D) Towering

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  • question_answer220) Directions: Choose the word which is opposite in meaning to the word given in capital letters. NIMBLE

    A) Giant

    B) Clumsy

    C) Quick

    D) Frank

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  • question_answer221) Venue of\[{{1}^{st}}\]20-20 World Cup

    A) London

    B) Australia

    C) South Africa

    D) India

    View Answer play_arrow
  • question_answer222) Gramy Awards are given for?

    A) Music

    B) Literature

    C) Sports

    D) Philately

    View Answer play_arrow
  • question_answer223) International womens day is celeberated on

    A) \[{{8}^{th}}\] March

    B) \[{{10}^{th}}\] December

    C) \[{{11}^{th}}\] July

    D) \[{{12}^{th}}\]Jan

    View Answer play_arrow
  • question_answer224) Headquater of Amnesty International is at

    A) London

    B) New York

    C) Geneva

    D) Timbak-Tu

    View Answer play_arrow
  • question_answer225) Who is known as fuhrer?

    A) Mussolini

    B) Winston Churchil

    C) Hitler

    D) Stalin

    View Answer play_arrow
  • question_answer226) The news agency REUTER belongs from

    A) New York

    B) Paris

    C) London

    D) Ratterdam

    View Answer play_arrow
  • question_answer227) Who is considered to be the father of English poetry

    A) Shakespere

    B) John Keats

    C) John Milton

    D) Geoffrey Chaucer

    View Answer play_arrow
  • question_answer228) Among them who is not a sportsperson.

    A) Maria Sharapova

    B) Anju Bobby George

    C) Anjum Chopra

    D) Victoria Becham

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  • question_answer229) Which among the following, Indian Artists is the winner of the Oscar Awards?

    A) Dilip kumar

    B) Bhanu Athaiya

    C) Raj kapoor

    D) Illaya Raja

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  • question_answer230) Kutchipudi is the dance form belongs to the state

    A) Andhra Pradesh

    B) Tamil Nadu

    C) Keria

    D) Bihar

    View Answer play_arrow
  • question_answer231) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Prophecy : Future :: Regret

    A) Present

    B) Past

    C) Sin

    D) Empathy

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  • question_answer232) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Sikhs : Gurudwara : : Jews

    A) Mecca

    B) Fire Temple

    C) Synagogue

    D) ZendAvesta

    View Answer play_arrow
  • question_answer233) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Teeth : Pyorrhea : : Skin

    A) Eczema

    B) Aizheimers disease

    C) Schizophrenia

    D) Colourblindness

    View Answer play_arrow
  • question_answer234) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Pork : Pig : : Venison

    A) Deer

    B) Stallian

    C) Bull

    D) Zebra

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  • question_answer235) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Homicide : Human : : Fratricide

    A) Mother

    B) Father

    C) Brother

    D) Enemy

    View Answer play_arrow
  • question_answer236) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Horse : Jockey : : Car

    A) Mechanic

    B) Chauffer

    C) Steering

    D) Brake

    View Answer play_arrow
  • question_answer237) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Squint: Eye : : Squeeze

    A) Tongue

    B) Cloth

    C) Throat

    D) Hand

    View Answer play_arrow
  • question_answer238) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Hawana : Cuba : : Beirut

    A) Israel

    B) Lebanan

    C) Zordan

    D) Syria

    View Answer play_arrow
  • question_answer239) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Wool: Sheep : : Mohair

    A) Deer

    B) Goat

    C) Bear

    D) Camel

    View Answer play_arrow
  • question_answer240) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Cunning : Fox : : Timid

    A) Horse

    B) Ant

    C) Ass

    D) Panther

    View Answer play_arrow

   

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