Solved papers for RAJASTHAN PMT Rajasthan - PMT Solved Paper-2005

done Rajasthan - PMT Solved Paper-2005

  • question_answer1) A car is moving at a speed of 72 km/hr. The diameter of its wheels is 0.5 m. If the wheels are stopped in 20 rotations applying brakes. Then angular retardation provided by the brake is:

    A) \[-45.\,5\,rad/{{s}^{2}}\]

    B) \[-33.\,5\,rad/{{s}^{2}}\]

    C) \[-29.\,5\,rad/{{s}^{2}}\]

    D) \[-25.\,5\,rad/{{s}^{2}}\]

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  • question_answer2) A bullet is fired from the gun with a speed of 1000 m/s in order to hit a target s = 100 in away. At what height above the target should by gun be aimed (The resistance of air is negligible and \[g=10\,m/{{s}^{2}}\])

    A) 23 cm

    B) 15 cm

    C) 9 cm

    D) 5 cm

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  • question_answer3) If the coefficient of friction of a plane inclined at \[45{}^\circ \] is 0.5. Then acceleration of a body sliding freely on it will be:

    A) \[\frac{9.8}{2\sqrt{2}}m/{{s}^{2}}\]

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

    C) \[9.8\,m/{{s}^{2}}\]

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

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  • question_answer4) Assuming earth to be sphere of uniform density what is the value of acceleration due to gravity at a point 100 km below the earth surface (Given \[R=6380\,\times {{10}^{3}}\,m\])

    A) 3.10 m/s

    B) \[5.06\,m/{{s}^{2}}\]

    C) \[7.64\,m/{{s}^{2}}\]

    D) \[9.66\,m/{{s}^{2}}\]

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  • question_answer5) Plancks constant has same dimension as:

    A) angular momentum

    B) linear momentum

    C) force

    D) energy

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  • question_answer6) The mass of ship is \[2\times {{10}^{7}}\,kg\]. On applying a fore of \[25\times {{10}^{5}}N,\] it is displaced through 25 m. After the displacement. The speed a required by the ship will be:

    A) 12.5 m/s

    B) 5 m/s

    C) 3.7 m/s

    D) 2.5 m/s

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  • question_answer7) A 500 kg car takes around turn of radius 50 m with a speed of 36 km/hr. The centripetel force acting on the car will be:

    A) 1200 N

    B) 1000 N

    C) 750 N

    D) 250 N

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  • question_answer8) An apple gives 21 kJ energy to a boy. How much height he can climb by using this energy. If his efficiency is 28%? (mass of boy 40 kg)

    A) 22.5 m

    B) 15 m

    C) 10m

    D) 5m

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  • question_answer9) The weight of an object at earths surface is 700 g wt. What will be its weight at the surface of a planet whose radius is 1/2 and mass is 1/7 of that of the earth?

    A) 200 g wt.

    B) 400 g wt.

    C) 50 g wt.

    D) 300 g wt.

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  • question_answer10) Out of the given bodies (of same mass) for which the moment of inertia will be maximum about the axis passing through its centre of gravity and perpendicular to its plane?

    A) Disc of radius\[a\]

    B) Ring of radius\[a\]

    C) Square lamina of side\[2a\]

    D) Pour rods of length \[2a\] making a square

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  • question_answer11) A moving body of mass in and velocity 3 km/hr. Collides with a body at rest and of mass 2 in and then sticks to it. Now the combined mass starts to move, then the combined velocity will be:

    A) 4 km/hr

    B) 3 km/hr

    C) 2 km/hr

    D) 1 km/hr

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  • question_answer12) A 120m long train is moving towards west with a speed of 10 m/s. A bird flying towards east with a speed of 3 m/s crosses the train. The time taken by the bird to cross the train will be:

    A) 16 sec

    B) 12 sec

    C) 10 sec

    D) 8sec

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  • question_answer13) The velocity of all radio waves in free space is \[3\times {{10}^{5}}\,m/s\]. The frequency of a radio wave of wavelength 150 m is:

    A) 20 kHz

    B) 2 kHz

    C) 2 MHz

    D) 1 MHz

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  • question_answer14) A boy of 50 kg is standing in a left moving down with acceleration \[9.8\,m/{{s}^{2}}\]. The apparent weight of the boy is:

    A) \[\frac{50}{9.8}N\]

    B) \[50\times 9.8\,N\]

    C) 50 N

    D) zero

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  • question_answer15) A particle executing SHM has amplitude and frequency 60 Hz. The maximum acceleration of the particle is:

    A) \[60{{\pi }^{2}}m/{{s}^{2}}\]

    B) \[88\,{{\pi }^{2}}m/{{s}^{2}}\]

    C) \[140\,{{\pi }^{2}}m/{{s}^{2}}\]

    D) \[144\,{{\pi }^{2}}m/{{s}^{2}}\]

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  • question_answer16) If the equation of motion of standing Waves is y = 0.3 sin (314 t - 1.57 x), then the velocity of standing wave will be:

    A) 400 m/s

    B) 300 m/s

    C) 200 m/s

    D) 100 m/s

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  • question_answer17) In a thermodynamics process pressure of a fixed mass of a gas is changed in such a manner that the gas molecule give out 30 joule of heat and 10 joule of work is done on the gas. If the initial internal energy of the gas was 40 joule, then the final internal energy will be:

    A) -20 J

    B) 20 J

    C) 80 J

    D) 3 J

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  • question_answer18) A black body is heated from \[{{27}^{o}}C\] to \[{{927}^{o}}C\] the ratio of radiations emitted will be:

    A) 1 : 256

    B) 1 : 64

    C) 1 : 16

    D) 1 : 4

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  • question_answer19) The efficiency of a Carnot engine operating with reservoir temperature of \[100{}^\circ C\]and \[-23{}^\circ C\] will be:

    A) \[\frac{100-23}{373}\]

    B) \[\frac{100+23}{373}\]

    C) \[\frac{100+23}{100}\]

    D) \[\frac{100-23}{100}\]

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  • question_answer20) A body cools from \[60{}^\circ C\] to \[50{}^\circ C\] in 10: minutes. If the room temperature is \[25{}^\circ C\] and assuming newtons law of cooling to hold good, the temperature of the body at the end of the next 10 minutes will be:

    A) \[25{}^\circ C\]

    B) \[42.85{}^\circ C\]

    C) \[40{}^\circ C\]

    D) \[38.5{}^\circ C\]

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  • question_answer21) A circular coil of radius 2 cm has 10 turns, if 0.5 A current is flowing through it, then what will be the magnetic field at its centre?

    A) \[1.57\times {{10}^{6}}T\]

    B) \[1.57\times {{10}^{-5}}T\]

    C) \[1.57\times {{10}^{-4}}T\]

    D) \[1.57T\]

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  • question_answer22) A galvanometer can be changed into ammeter by connecting:

    A) high resistance in parallel

    B) high resistance in series

    C) low resistance in parallel

    D) low resistance in series

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  • question_answer23) A prism has a refracting angle \[60{}^\circ \]. A ray of given monochromatic light suffers minimum deviation of \[38{}^\circ \] in passing through prism refractive index of the material of prism is:

    A) 1.5094

    B) 1.3056

    C) 0.7849

    D) 2.425

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  • question_answer24) A metal coin is at the bottom of a beaker filled with a liquid of refractive index 4/3 to height of 6 cm. To an observer looking from above the surface of the liquid, coin will appear at a depth of:

    A) 7.5 cm

    B) 6.75 cm

    C) 4.5 cm

    D) 1.5 cm

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  • question_answer25) An astronomical telescope has two lenses of focal powers 0.5 D and 20 D. Then its magnifying power will be:

    A) 8

    B) 20

    C) 30

    D) 40

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  • question_answer26) The peak value of AC voltage on a 220V mains is:

    A) \[240\sqrt{2}V\]

    B) \[230\sqrt{2}V\]

    C) \[220\sqrt{2}V\]

    D) \[200\sqrt{2}V\]

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  • question_answer27) A resistance of a galvanometer\[G=6\Omega \] maximum current of 2 amp is measured by it. Then required resistance to convert it into ail ammeter reading up to 6 A, will of:

    A) 5\[5\,\Omega \]

    B) \[4\,\Omega \]

    C) \[3\,\Omega \]

    D) \[2\,\Omega \]

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  • question_answer28) Two copper wires are of same length one of the twice as thick as the other. Then the resistance of the two wires are in the ratio of:

    A) 1 : 16

    B) 1 : 8

    C) 1 : 4

    D) 1 : 2

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  • question_answer29) A hot electric iron has a resistance of 80\[\,\Omega \] and is used on a 200 V source. The electrical energy spent, if it is used for hr, will be:

    A) 8000 Wh

    B) 2000 Wh

    C) 1000 Wh

    D) 800Wh

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  • question_answer30) In the given network capacitance \[{{C}_{2}}=10\,\mu F,\] \[{{C}_{1}}=5\,\mu F\] and \[{{C}_{3}}=4\,\mu F.\] The resultant capacitance between P and Q will be:

    A) \[4.7\,\mu F\]

    B) \[1.2\,\mu F\]

    C) \[3.2\,\mu F\]

    D) \[2.2\,\mu F\]

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  • question_answer31) The no. of turns in primary and secondary of a transformer are 5 and 10 and mutual inductance of transformer is 25 henry. Now, the no. of turns in primary and secondary are 10 and 5, the new mutual inductance will be:

    A) 6.25 H

    B) 12.5H

    C) 25 H

    D) 50 H

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  • question_answer32) From a point charge, there is a fixed point A. At A, there is an electric field of 500 volt/meter and potential difference of 3000 V. Distance between the point charge and A is

    A) 24 m

    B) 16 m

    C) 12 m

    D) 6 m

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  • question_answer33) In the inductive circuit given in the figure, the currents rises after the switch is closed. At instant when the current is 15 mA, then potential difference across the inductor will be:

    A) zero

    B) 240 V

    C) 180 V

    D) 60 V

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  • question_answer34) From resistances of 100 ohm each are connected in the form of a square. The effective resistance along the diagonal points P R. is:

    A) \[100\,\Omega \]

    B) \[180\,\Omega \]

    C) \[220\,\Omega \]

    D) \[440\,\Omega \]

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  • question_answer35) 700 pF capacitor is charged by 50 V battery. Electrostatic energy is stored by it will be:

    A) \[17.0\times {{10}^{-8}}J\]

    B) \[13.0\times {{10}^{-9}}J\]

    C) \[8.7\times {{10}^{-7}}J\]

    D) \[6.7\times {{10}^{-7}}J\]

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  • question_answer36) An aeroplane having a wing space of 35 m flies due north with the speed of 90 m/s given \[B\,4\times {{10}^{-5}}\]tesla. The potential difference between the tips of the wings will be:

    A) 0.013V

    B) 1.26V

    C) 12.6V

    D) 0.126V

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  • question_answer37) Two coils have mutual inductance 0.005 H. The current changes in the first coil according to equation\[I={{I}_{0}}\] sin cot. Where \[{{I}_{0}}=10\] amp and \[\omega =10\,\pi \] rad/sec. The maximum value of emf in the second coil is:

    A) \[12\,\pi \]

    B) \[8\,\pi \]

    C) \[5\,\pi \]

    D) \[2\,\pi \]

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  • question_answer38) A radioactive element has half life of 3.6 days. In what time will it be left 1/32nd undecayed?

    A) 4 days

    B) 12 days

    C) 18 days

    D) 24 days

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  • question_answer39) In a \[\text{p-}\]type semiconductor germanium is doped with:

    A) gallium

    B) aluminium

    C) boron

    D) all of these

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  • question_answer40) The wavelength associated with an electron accelerated through a potential difference of 100 V is of the order of:

    A) \[1.2\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[10.5\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    C) \[100\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) \[1000\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

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  • question_answer41) A body whose moment of inertia is 3 kg-m2 is in rest. It is rotated for 20 sec by a torque of 6 Nm, angular displacement of the body will be:

    A) 400 radian

    B) 200 radian

    C) 100 radian

    D) 250 radian

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  • question_answer42) A straight conductor of length 4 m moves at a speed of 10 m/s. When the conductor makes an angle of \[30{}^\circ \] with the direction of magnetic field of induction of 0.1 wb.perm2 then induced emf. is:

    A) 8 V

    B) 4 V

    C) 1 V

    D) 2 V

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  • question_answer43) The work function for aluminium surface is 4.2eV. The cutoff wavelength for photoelectric effect is:

    A) \[1000\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[2000\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    C) \[2955\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) \[4200\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

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  • question_answer44) The ionization potential of hydrogen atom is 13.6 volt. In the lowest energy level, this atom is ionized by absorbing a photon of \[800\,\overset{\text{o}}{\mathop{\text{A}}}\,\]. The kinetic energy of the released electron will be:

    A) 15.51 eV

    B) 2.91 eV

    C) 13.6 eV

    D) 1.91 eV

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  • question_answer45) Penetrating power is minimum for:

    A) X-rays

    B) \[\text{-}\]rays

    C) \[\text{-}\]rays

    D) \[\text{-}\]rays

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  • question_answer46) The functions of moderators in nuclear reactor is to:

    A) decrease the speed of neutrons

    B) increase the speed of neutrons

    C) decrease the speed of electrons

    D) increase the speed of electrons

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  • question_answer47) A chain reaction in fission of uranium is possible, because:

    A) two intermediate sized nuclear fragments are formed

    B) three neutrons are given out in each fission

    C) fragments in fission are radioactive

    D) large amount of energy is released

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  • question_answer48) A nuclei X with mass number A and charge number Z, disintegrates into one \[\alpha \text{-}\]particle and one (\[\beta \text{-}\]particle. The resulting nuclide R has atomic mass and atomic number, equal to:

    A) (A - Z) and (Z - 1)

    B) (A- Z) and (Z- 2)

    C) (A - 4) and (A - 2)

    D) A - 4) and (Z- 1)

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  • question_answer49) Two inductors each of inductance L are joined in parallel. Their equivalent inductance will be:

    A) zero

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

    C) L

    D) 2 L

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  • question_answer50) What will be the amount of energy absorbed when an electron jumps from first orbit to second orbits? (If the value of energy in nth orbit of H-atom is expressed as \[{{E}_{n}}=-\frac{13.6}{{{n}^{2}}}eV)\]

    A) - 3.4 eV

    B) - 6.6 eV

    C) -8.1eV

    D) -10.2eV

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  • question_answer51) The velocity of bullet is reduced from 200 m/s to 100 m/s while travelling through a wooden block of thickness of 10 cm. The retardation assuming to be uniform, will be:

    A) \[15\times {{10}^{4}}m/{{s}^{2}}\]

    B) \[13.5\times {{10}^{4}}m/{{s}^{2}}\]

    C) \[12\times {{10}^{4}}m/{{s}^{2}}\]

    D) none of these

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  • question_answer52) A stone tied to one end of spring 80 cm long is whirled in a horizontal circle with a constant speed. If stone makes25 revolutions in 14 sec. the magnitude of acceleration of stone is:

    A) \[850\,cm/{{s}^{2}}\]

    B) \[996\,cm/{{s}^{2}}\]

    C) \[720\,cm/{{s}^{2}}\]

    D) \[650\,cm/{{s}^{2}}\]

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  • question_answer53) A concave mirror of focal length 15 cm forms an image having twice the linear dimension of the object. The position of the object when the image is virtual will be:

    A) 45 cm

    B) 30 cm

    C) 7.5 cm

    D) 22.5 cm

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  • question_answer54) The thermodynamic co-ordinates of a jar filled with gas A are P. V and T and another jar B filled with another gas are IP, V/4 and 2T, where the symbols have their usual meaning. The ratio of the number of molecules of jar A to those of jar B is:

    A) 4 : 1

    B) 2 : 1

    C) 1 : 2

    D) 1 : 1

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  • question_answer55) If the pressure of a gas contained in a vessel is increased by 0.4% when heated through 1\[{}^\circ C\], the initial temperature had been:

    A) 2500 K

    B) 250 K

    C) \[250{}^\circ C\]

    D) \[25{}^\circ C\]

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  • question_answer56) A square loop of side L carries current t, magnetic field at the centre of the loop:

    A) does not depend on L

    B) directly proportional to \[{{L}^{2}}\]

    C) inversly proportional to L

    D) directly proportional to L

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  • question_answer57) For a given angle of projection, if the time of flight of a projectile is doubled the horizontal range will increase to:

    A) four times

    B) thrice

    C) once

    D) twice

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  • question_answer58) When the kinetic energy of a body executing S.H.M. is 1/3 of the potential energy. The displacement of the body is x percent of the amplitude, where x is:

    A) 33

    B) 87

    C) 67

    D) 50

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  • question_answer59) In the case of horse pulling a cart, the force that causes the horse to move forward is the force that:

    A) the horse exerts on the ground

    B) the horse exerts on the cart

    C) the ground exerts on the horse

    D) the cart exerts on the horse

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  • question_answer60) If retardation produced by air resistance of projectile is one-tenth of acceleration due to gravity, the lime to reach maximum height:

    A) decreases by 11 percent

    B) increases by 11 percent

    C) decreases by 90 percent

    D) increases by 90 percent

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  • question_answer61) y component of velocity is 20 and x component of velocity is 10. The direction of motion of the body with the horizontal at this instant is:

    A) \[{{\tan }^{-1}}(2)\]

    B) \[{{\tan }^{-1}}(1/2)\]

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

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

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  • question_answer62) The dimensional formula of light year is:

    A) \[[{{L}^{-1}}]\]

    B) \[[{{T}^{-1}}]\]

    C) \[[L]\]

    D) \[[T]\]

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  • question_answer63) In a good conductor of electricity, the type of bonding that exists is:

    A) ionic

    B) van der waal

    C) covalent

    D) metallic

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  • question_answer64) Two identical straight wires are stretched so as to produce 6 beats per second when vibrating simultaneously. On changing the tension slightly in one of them, the beat frequency stilt remains unchanged. Denoting by \[{{T}_{1}}\]and \[{{T}_{2,}}\] the higher and the lower initial tensions in the strings, it could be said that while making the above changes in tension:

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

    B) \[{{T}_{1}}\]was increased

    C) \[{{T}_{2}}\] was increased

    D) \[{{T}_{2}}\] was decreased

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  • question_answer65) When beats are produced by two progressive waves of the same amplitude and of nearly the same frequency, the ratio of maximum loudness to the loudness of one of the waves will be n. Where n is:

    A) 3

    B) 1

    C) 4

    D) 2

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  • question_answer66) A body is suspended from a smooth horizontal nail by a string of length 0.25 metre. What minimum horizontal velocity should be given to it in the lowest position so that it may move in a complete vertical circle with the nail at the centre?

    A) \[\sqrt{12.25}\,m{{s}^{-1}}\]

    B) \[4.9\,m{{s}^{-1}}\]

    C) \[7\sqrt{2}\,m{{s}^{-1}}\]

    D) \[\sqrt{9.8}\,m{{s}^{-1}}\]

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  • question_answer67) Two rain drops falling through air have radii in the ratio 1 : 2. They will have terminal velocity in the ratio:

    A) 4 : 1

    B) 1 : 4

    C) 2 : 1

    D) 1 : 2

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  • question_answer68) A body is acted on by force towards a point. The magnitude of the force is inversely proportional to the square of the distance. The path of body will be:

    A) ellipse

    B) hyperbola

    C) circle

    D) parabola

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  • question_answer69) An electric immersion heater of 1.08 kW is immersed in water. After the water has readied a temperature of\[100{}^\circ C\], how much time will be required to produce 100 got steam?

    A) 210 s

    B) 105 s

    C) 420 s

    D) 50 s

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  • question_answer70) The speed of sound through oxygen at TK is \[\upsilon \,m{{s}^{-1}}\]. As the temperature becomes 2T and oxygen gas dissociates into atomic oxygen, the speed of sound:

    A) remains the same

    B) becomes \[2\upsilon \]

    C) becomes \[\sqrt{2\upsilon }\]

    D) none of these

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  • question_answer71) Illumination of the sun at noon is maximum because:

    A) scattering is reduced at noon

    B) refraction of light is minimum at noon

    C) rays are incident almost normally

    D) the sun is nearer to earth at noon

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  • question_answer72) Two spheres of radii in the ratio 1 : 2 and densities in the ratio 2 : 1 and of same specific heat, are heated to same temperature and left in the same surrounding. Their rate of cooling will be in the ratio :

    A) 2 : 1

    B) 1 : 1

    C) 1 : 2

    D) 1 : 4

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  • question_answer73) The formation of ice is started in a lake with water at \[0{}^\circ C\]. When the atmospheric temperature is -\[10{}^\circ C\]. If time taken for 1 cm of ice to be formed is 7 hours, the time taken for the thickness of ice to increase from 1 cm to cm is:

    A) less than 7 hours

    B) 7 hours

    C) more than 14 hours

    D) more than 7 hours but less than 14 hours

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  • question_answer74) If an ideal flask containing hot coffee is shaken, the temperature of the coffee will:

    A) decrease

    B) increase

    C) remain same

    D) decrease if temperature is below \[4{}^\circ C\] and increase if temperature is equal to or more than \[4{}^\circ C\]

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  • question_answer75) Water is used to cool the radiators of engines in cars because:

    A) of its low boiling point

    B) of its high specific heat

    C) of its low density

    D) of its easy availability

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  • question_answer76) Suppose radius of the moons orbit around the earth is doubled. Its period around the earth will become :

    A) 1/2 times

    B) \[\sqrt{2}\] times

    C) \[{{2}^{2/3}}\] times

    D) \[{{2}^{3/2}}\] times

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  • question_answer77) A sphere is accelerated upwards by a cord whose braking strength is four times its weight. The maximum acceleration with which the sphere can move up without breaking the cord is:

    A) g

    B) 3g

    C) 2g

    D) 4g

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  • question_answer78) The potential due to dipole at a point is proportional to:

    A) \[{{r}^{-2}}\]

    B) \[{{r}^{3}}\]

    C) \[{{r}^{2}}\]

    D) r

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  • question_answer79) The capacitance of a spherical conductor with radius 1 m is:

    A) \[9\times {{10}^{-9}}F\]

    B) \[1\mu F\]

    C) \[2.5\times {{10}^{-10}}F\]

    D) \[1\times {{10}^{-6}}F\]

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  • question_answer80) A body moves for a total of nine second starting from rest with uniform acceleration and then with uniform retardation, which is twice the value of acceleration and then stops. The duration of uniform acceleration is:

    A) 3 s

    B) 4.5 s

    C) 5s

    D) 6 s

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  • question_answer81) The magnifying power of objective of a compound microscope is 7. If magnifying power of microscope is 35, the magnifying power of eye lens will be:

    A) 5

    B) 30

    C) 35

    D) 28

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  • question_answer82) A convex lens makes a real image of 4 cm long on a screen. When the km is shifted to a new position without disturbing the object or the screen, we get a real image on the screen, which is 16 cm long. The length of the object is:

    A) 1/4 cm

    B) 8 cm

    C) 20 cm

    D) 2 cm

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  • question_answer83) The displacement equation for a progressive wave is \[y=5\times {{10}^{-5}}\] sin (100 t-50 x), where quantities are in MKS system, velocity of wave will be:

    A) 1 m/s

    B) 2 m/s

    C) 0.5 m/s

    D) 15 m/s

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  • question_answer84) Bernoullis principle is based on the law of conservation of:

    A) angular momentum

    B) linear momentum

    C) mass

    D) energy

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  • question_answer85) The colour of a star indicates its:

    A) temperature

    B) distance

    C) velocity

    D) size

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  • question_answer86) Efficiency of a half-wave rectifier is nearly:

    A) 80%

    B) 60%

    C) 40%

    D) 20%

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  • question_answer87) The current ill a diode is related to the voltage V by the equation:

    A) \[I\propto {{V}^{1/2}}\]

    B) \[I\propto {{V}^{3/2}}\]

    C) \[I\propto {{V}^{2}}\]

    D) \[I\propto V\]

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  • question_answer88) An X-ray photon has a wavelength \[0.01\,\overset{\text{o}}{\mathop{\text{A}}}\,\]. Its momentum (in \[kg\,m{{s}^{-1}}\]) is:

    A) \[6.66\,\times {{10}^{-22}}\]

    B) \[3.3\,\times {{10}^{-32}}\]

    C) \[6.6\times {{10}^{-22}}\]

    D) 0

    View Answer play_arrow
  • question_answer89) The equation \[{{4}_{1}}{{H}^{1}}{{\xrightarrow{{}}}_{2}}H{{e}^{4++}}+2{{e}^{+}}+26\,MeV\]represents:

    A) \[\text{-}\]decay

    B) \[\beta \text{-}\] decay

    C) fission

    D) fusion

    View Answer play_arrow
  • question_answer90) An infinitely long straight conductor is bent into the shape as shown in figure. It carries a current (A and radius of the circular loop is r m. The magnetic field at the centre of the loop is:

    A) \[{{\mu }_{0i}}(\pi -1)/2\pi r\]

    B) \[{{\mu }_{0i}}(\pi +1)/2\pi r\]

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

    D) none of the above

    View Answer play_arrow
  • question_answer91) According to Newton viscus force is given by \[F=-\eta A\frac{d\upsilon }{dx}\]where\[\eta =\]coefficient of viscosity, so dimensions of \[\eta \] will be:

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

    B) \[[ML{{T}^{-2}}]\]

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

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

    View Answer play_arrow
  • question_answer92) A truck travelling due north at \[20\,m{{s}^{-1}}\] turns west and travels with same speed. What is the change in velocity?

    A) \[20\sqrt{2}\,m{{s}^{-1}}\] south-west

    B) \[40\,m{{s}^{-1}}\] south-west

    C) \[20\sqrt{2}\,m{{s}^{-1}}\] north-west

    D) \[40\,m{{s}^{-1}}\] north-west

    View Answer play_arrow
  • question_answer93) An iron bar of length \[l\] and having a cross-section A is heated from 0 to \[100{}^\circ C\]. If this bar is so held that it is not permitted to expand or bend/ the force that is developed, is:

    A) inversely proportional to the cross-sectional area of the bar

    B) independent of the length of the bar

    C) inversely proportional to the length of the bar

    D) directly proportional to the length of the bar

    View Answer play_arrow
  • question_answer94) A body of uniform cross-sectional area floats in a liquid of density thrice its value. The fraction of exposed height will be:

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

    B) \[\frac{5}{6}\]

    C) \[\frac{1}{6}\]

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

    View Answer play_arrow
  • question_answer95) The restoring force of SHM is maximum when particle :

    A) displacement is maximum

    B) half way between them

    C) when crossing mean position

    D) at rest

    View Answer play_arrow
  • question_answer96) Two forces of UN and 8N act upon a body. The resultant force on the body has a maximum Value of :

    A) 4 N

    B) 0 N

    C) 20 N

    D) 8 N

    View Answer play_arrow
  • question_answer97) Which of following pairs does not have similar dimensions?

    A) Plancks constant and angular momentum

    B) Tension and surface tension

    C) Angle and strain

    D) Stress and pressure

    View Answer play_arrow
  • question_answer98) Four tenses arc made from the same type of glass. The radius of curvature of each face is given below. Which will have the greatest positive power?

    A) 10 cm convex and 15 concave

    B) 5 cm convex and 10 cm concave

    C) 15 cm convex and plane

    D) 20 cm convex and 30 cm concave

    View Answer play_arrow
  • question_answer99) The slope of a graph drawn between threshold frequency and stopping potential is:

    A) e

    B) h

    C) \[\frac{h}{e}\]

    D) he

    View Answer play_arrow
  • question_answer100) The truth table given below belongs for which gate?

    A B C
    0 0 1
    0 1 1
    1 0 1
    1 1 0

    A) OR

    B) XOR

    C) AND

    D) NAND

    View Answer play_arrow
  • question_answer101) Formalin is:

    A) \[HCHO\]

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

    C) \[HCOOH\]

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

    View Answer play_arrow
  • question_answer102) Nesslers reagent is:

    A) \[NaHgC{{l}_{4}}\]

    B) \[{{K}_{2}}Hg{{l}_{4}}\]

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

    D) \[{{K}_{2}}Hf{{I}_{4}}+KOH\]

    View Answer play_arrow
  • question_answer103) The process of zinc-plating on iron sheet is known as:

    A) aneling

    B) roasting

    C) galvanization

    D) smelting

    View Answer play_arrow
  • question_answer104) The correct one for \[d-\]orbital is:

    A) \[(n-1){{d}^{1-9}}n{{s}^{1}}\]

    B) \[(n-1){{d}^{1-10}}n{{s}^{1-2}}\]

    C) \[(n-1){{d}^{1-5}}\]

    D) \[(n-1){{d}^{1-10}}n{{s}^{2}}\]

    View Answer play_arrow
  • question_answer105) The oxygen obtained from \[72\,\,kg\] of water is:

    A) \[72\,\,kg\]

    B) \[46\,\,kg\]

    C) \[50\,\,kg\]

    D) \[64\,\,kg\]

    View Answer play_arrow
  • question_answer106) The correct order of relative acidity is:

    A) \[HClO>HCl{{O}_{2}}>HCl{{O}_{3}}>HCl{{O}_{2}}\]

    B) \[HCl{{O}_{4}}>HCl{{O}_{3}}>HCl{{O}_{2}}>HClO\]

    C) \[HClO>HCl{{O}_{4}}>HCl{{O}_{2}}>HCl{{O}_{3}}\]

    D) \[HCl{{O}_{3}}>HCl{{O}_{2}}>HCl{{O}_{4}}>HClO\]

    View Answer play_arrow
  • question_answer107) The oxidation state of \[{{M}^{3+}}\] after removing three electrons is:

    A) \[zero\]

    B) \[+3\]

    C) \[+6\]

    D) \[-6\]

    View Answer play_arrow
  • question_answer108) The oil of wintergreen is:

    A) ethyl salicylate

    B) methyl salicylate

    C) benzaldehyde

    D) phenyl salicylate

    View Answer play_arrow
  • question_answer109) The lightest as is:

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

    B) \[Ar\]

    C) \[Rn\]

    D) \[He\]

    View Answer play_arrow
  • question_answer110) The half-life period of radium is 1580 years. It remains 1/16 after the years:

    A) 1580 years

    B) 3160 years

    C) 4740 years

    D) 6320 years

    View Answer play_arrow
  • question_answer111) \[_{90}{{K}^{40}}\]and \[_{20}C{{a}^{40}}\] are known as:

    A) isotopes

    B) isobars

    C) inslones

    D) isodiaphers

    View Answer play_arrow
  • question_answer112) The ore of aluminium is:

    A) carnalite

    B) malachite

    C) galena

    D) bauxite

    View Answer play_arrow
  • question_answer113) The equivalent weight of \[KMn{{O}_{4}}\] in acidic medium is:

    A) \[158\]

    B) \[52.67\]

    C) \[31.6\]

    D) \[49\]

    View Answer play_arrow
  • question_answer114) The species responsible for nitraction is:

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

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

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

    D) all the above

    View Answer play_arrow
  • question_answer115) A compound \[(60\,\,g)\] on analysis produce carbon, hydrogen and oxygen\[24\,\,g\], \[4\,\,g\] and \[32\,\,g\] respectively. The empirical formula is:

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

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

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

    D) \[{{C}_{2}}{{H}_{4}}{{O}_{6}}\]

    View Answer play_arrow
  • question_answer116) The indicator used for the filtration of weak base and strong acid is:

    A) thymol blue

    B) methyl orange

    C) phenolphthalein

    D) fluorescein

    View Answer play_arrow
  • question_answer117) The reagent used for Friedel Crafts reaction is:

    A) dry ether

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

    C) anhydrous\[AlC{{l}_{3}}\]

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

    View Answer play_arrow
  • question_answer118) For converting a solution of \[100\,\,ml\,\,KCl\] of \[0.4\,\,M\] concentration into a solution of \[KCl\,\,0.05\,\,M\] concentration. The quantity of water added is:

    A) \[900\,\,ml\]

    B) \[700\,\,ml\]

    C) \[500\,\,ml\]

    D) \[300\,\,ml\]

    View Answer play_arrow
  • question_answer119) Buffer is a colloidal solution of:

    A) solid - solid

    B) liquid - solid

    C) solid - liquid

    D) gas - solid

    View Answer play_arrow
  • question_answer120) Acetone and chloroform reacts to produce:

    A) \[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\]

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

    C) \[{{C}_{6}}{{H}_{5}}Cl\]

    D) \[HCHO\]

    View Answer play_arrow
  • question_answer121) The Claisen condensation reaction is given by:

    A) \[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\]

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

    C) \[{{C}_{6}}{{H}_{5}}Cl\]

    D) \[HCHO\]

    View Answer play_arrow
  • question_answer122) The laboratory method for the preparation of\[{{H}_{2}}{{O}_{2}}\]is by:

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

    B) \[N{{H}_{4}}HS{{O}_{4}}\]

    C) \[N{{a}_{2}}{{O}_{2}}+{{H}_{2}}S{{O}_{4}}\]

    D) all the above

    View Answer play_arrow
  • question_answer123) Picric acid is:

    A) trinitro toluene

    B) trinitro benzene

    C) trinitro phenol

    D) trinitro aniline

    View Answer play_arrow
  • question_answer124) \[_{90}T{{h}^{232}}{{\xrightarrow{{}}}_{82}}P{{b}^{208}}\] The number of \[\alpha \] and \[\beta \] particles emitted during the above reaction is:

    A) \[8\alpha \]and\[4\beta \]

    B) \[8\alpha \]and\[16\beta \]

    C) \[4\alpha \]and\[2\beta \]

    D) \[6\alpha \]and\[4\beta \]

    View Answer play_arrow
  • question_answer125) The phenomenon of mutation is:

    A) chemical change in DNA molecule

    B) production of macromolecules

    C) synthesis of macromolecules

    D) invasion of foreign micro-organism

    View Answer play_arrow
  • question_answer126) The \[cis\] and trails isomers are represented by:

    A) pent-1-ene

    B) but-2-ene

    C) prop-1-ene

    D) but-1-ene

    View Answer play_arrow
  • question_answer127) Duralumin is an alloy of:

    A) \[Al+Mn\]

    B) \[Al+Mg+Ni+Mn\]

    C) \[Al+Mg+Ni\]

    D) \[Al+Mg+Mn+Cu\]

    View Answer play_arrow
  • question_answer128) The incorrect statement for \[d-\]block element is:

    A) it shows magnetic property

    B) it has variable valency

    C) it has tendency for formation of coloured ions

    D) it has complete \[d-\]orbitals

    View Answer play_arrow
  • question_answer129) The hybridisation present in \[I{{F}_{3}}\] is:

    A) \[s{{p}^{3}}d\]

    B) \[s{{p}^{3}}\]

    C) \[s{{p}^{3}}{{d}^{2}}\]

    D) \[s{{p}^{3}}{{d}^{3}}\]

    View Answer play_arrow
  • question_answer130) The \[IUPAC\] name of \[\begin{align} & C{{H}_{2}}=CH-CH-C{{H}_{2}}-C{{H}_{3}} \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\overset{|}{\mathop{C}}\,{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}} \\ \end{align}\] is:

    A) 3-proply pentene-1

    B) 3-ethyl-penten-1

    C) 4-ethyl-hexenc-1

    D) 3-ethyl-hexene-1

    View Answer play_arrow
  • question_answer131) The relation of \[\Delta H\] and \[\Delta E\] is represented as:

    A) \[\Delta H=\Delta E-P\Delta V\]

    B) \[\Delta E=\Delta H-P\Delta V\]

    C) \[\Delta H=\Delta E+\Delta nRT\]

    D) \[\Delta E=\Delta V+\Delta H\]

    View Answer play_arrow
  • question_answer132) The number of a and K bonds present in\[CH\equiv C-C{{H}_{2}}-CH=C{{H}_{2}}\]is:

    A) \[10\sigma 3\pi \]

    B) \[11\sigma 2\pi \]

    C) \[9\sigma 3\pi \]

    D) \[10\sigma 2\pi \]

    View Answer play_arrow
  • question_answer133) The incorrect statement for \[14\,\,g\] of \[CO\] is:

    A) it occupies \[2.24\,\,litre\] at\[NTP\]

    B) it corresponds to \[\frac{1}{2}\] mole of\[CO\]

    C) it corresponds to same mole of \[CO\] and \[{{N}_{3}}\]

    D) it corresponds to\[3.01\times {{10}^{23}}\]molecules of \[CO\]

    View Answer play_arrow
  • question_answer134) \[N{{H}_{4}}Cl(s)\xrightarrow{{}}N{{H}_{3}}(g)+HCl(g)\] When the above reaction occurs, the entropy

    A) remains same

    B) decrease

    C) increases

    D) none of the above

    View Answer play_arrow
  • question_answer135) Carbogen is a mixture of:

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

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

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

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

    View Answer play_arrow
  • question_answer136) The carboxylic acid which reduces Tollens reagent is:

    A) \[HCOOH\]

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

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

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

    View Answer play_arrow
  • question_answer137) The dissociation constant of two acids \[H{{A}_{1}}\] and \[H{{A}_{2}}\] are \[3.0\times {{10}^{-4}}\] and \[1.8\times {{10}^{-5}}\] respectively. The relative strengths of the acids is:

    A) \[1:16\]

    B) \[1:4\]

    C) \[4:1\]

    D) \[16:1\]

    View Answer play_arrow
  • question_answer138) The moderator used in nuclear reactors is:

    A) \[TEL\]

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

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

    D) \[R-O-R\]

    View Answer play_arrow
  • question_answer139) One mole of \[C{{H}_{4}}\] contains:

    A) \[4\,\,g\] atoms of hydrogen

    B) \[3.0\,\,g\] atoms of carbon

    C) \[6.02\times {{10}^{23}}\] atomy of hydrogen

    D) \[1.81\times {{10}^{23}}\] molecules of\[C{{H}^{4}}\]

    View Answer play_arrow
  • question_answer140) The electron affinity of \[Be\] is similar to:

    A) \[He\]

    B) \[B\]

    C) \[Li\]

    D) \[Na\]

    View Answer play_arrow
  • question_answer141) The oxidation number of sulphur in\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\] is:

    A) \[+1\]

    B) \[+2\]

    C) \[+3\]

    D) \[-3\]

    View Answer play_arrow
  • question_answer142) The number of double bonds in gammexane is:

    A) \[0\]

    B) \[1\]

    C) \[2\]

    D) \[3\]

    View Answer play_arrow
  • question_answer143) Benzaldehyde is converted to benzy alcohol by:

    A) Wurtz reaction

    B) Cannizzaro reaction

    C) Fittig reaction

    D) Wurz Fittig reaction

    View Answer play_arrow
  • question_answer144) Sindoor is represented by:

    A) \[Pb{{(N{{O}_{3}})}_{2}}\]

    B) \[PbC{{O}_{3}}Pb{{(OH)}_{2}}\]

    C) \[Pb{{(OH)}_{2}}4PbC{{O}_{3}}\]

    D) \[P{{b}_{3}}{{O}_{4}}\]

    View Answer play_arrow
  • question_answer145) The most polar bond is:

    A) \[O-F\]

    B) \[N-Cl\]

    C) \[N-F\]

    D) \[N-N\]

    View Answer play_arrow
  • question_answer146) Aniline reacts with chloroform in presence of alcoholic \[KOH\] to produce bad smelling compound. The compound produced is :

    A) \[{{C}_{6}}{{H}_{5}}NC\]

    B) \[{{C}_{6}}{{H}_{5}}CN\]

    C) \[{{C}_{6}}{{H}_{5}}Cl\]

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

    View Answer play_arrow
  • question_answer147) Bronze is a mixture of:

    A) \[Pb+Sn\]

    B) \[Cu+Sn\]

    C) \[Cu+Zn\]

    D) \[Pb+Zn\]

    View Answer play_arrow
  • question_answer148) Atom bomb is based on the principle of:

    A) nuclear fusion

    B) nuclear fission

    C) nuclear transformation

    D) carbon dating

    View Answer play_arrow
  • question_answer149) Glycerol on oxidation with bismuth nitrate produce:

    A) glyceric acid

    B) glyoxalic acid

    C) oxalic acid

    D) meso oxalic acid

    View Answer play_arrow
  • question_answer150) The osmotic pressure of \[5%\] solution of cane-sugar at \[{{150}^{o}}C\] is:

    A) \[3.47\,\,atm\]

    B) \[5.07\,\,atm\]

    C) \[2.09\,\,atm\]

    D) \[4.03\,\,atm\]

    View Answer play_arrow
  • question_answer151) Cadmium rods are used for which purpose?

    A) Emit electrons

    B) Absorb neutrons

    C) Emit neutrons

    D) absorb electrons

    View Answer play_arrow
  • question_answer152) Propionic acid and \[KOH\] reacts to produce which one of the following?

    A) Potassium propionate

    B) Propyl alcohol

    C) Propionaldehyde

    D) Does not react

    View Answer play_arrow
  • question_answer153) What is the effect of dilution on the equivalent conductance of strong electrolyte?

    A) Decrease on dilution

    B) Remains unchanged

    C) Increase on dilution

    D) None of the above

    View Answer play_arrow
  • question_answer154) \[35.4\,\,mL\] of \[HO\] is required for the neutralization of a solution containing 0.275 g of sodium hydroxide. The normality of hydrochloric acid is?

    A) \[0.97\,\,N\]

    B) \[0.142\,\,N\]

    C) \[0.194\,\,N\]

    D) \[0.244\,\,N\]

    View Answer play_arrow
  • question_answer155) 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) \[Hg\]

    View Answer play_arrow
  • question_answer156) The value of amu is which of the following?

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

    B) \[1.66\times {{10}^{-124}}kg\]

    C) \[1.99\times {{10}^{-124}}kg\]

    D) \[1.66\times {{10}^{-27}}kg\]

    View Answer play_arrow
  • question_answer157) The molecule having largest dipole moment among the following is:

    A) \[CH{{I}_{3}}\]

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

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

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

    View Answer play_arrow
  • question_answer158) When calcium acetate is distilled, it will produce which of the following compound?

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

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

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

    D) all of these

    View Answer play_arrow
  • question_answer159) Which of the following electronic configuration represents noble gas?

    A) \[n{{s}^{2}}n{{p}^{6}}\]

    B) \[n{{s}^{2}}n{{p}^{2}}\]

    C) \[n{{s}^{2}}n{{p}^{4}}\]

    D) \[n{{s}^{2}}n{{p}^{3}}\]

    View Answer play_arrow
  • question_answer160) 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) \[N{{a}_{2}}{{P}_{2}}{{O}_{5}}\]

    View Answer play_arrow
  • question_answer161) Which one of the following can produce hydrogen when treated with metallic sodium?

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

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

    C) \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]

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

    View Answer play_arrow
  • question_answer162) Which one of the following has unit positive charge and 1 amu mass?

    A) Electron

    B) Neutron

    C) Proton

    D) None of these

    View Answer play_arrow
  • question_answer163) What is the co-ordination number of body centred cube?

    A) 8

    B) 6

    C) 4

    D) 12

    View Answer play_arrow
  • question_answer164) Which gas is evolved by the treatment of magnesium with very dilute solution of\[HN{{O}_{3}}?\]

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

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

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

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

    View Answer play_arrow
  • question_answer165) Which of the following compound showy aromatic properties?

    A) Valine

    B) Leucine

    C) Serine

    D) Tyrosine

    View Answer play_arrow
  • question_answer166) Which one of the following pair shows Buffers solution?

    A) \[NaCl+NaOH\]

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

    C) \[C{{H}_{3}}COOH+C{{H}_{3}}COON{{H}_{4}}\]

    D) \[{{H}_{2}}S{{O}_{4}}+CuS{{O}_{4}}\]

    View Answer play_arrow
  • question_answer167) \[PC{{l}_{3}}\] and cold water reacts to produce which of the following?

    A) \[{{H}_{3}}P{{O}_{3}}\]

    B) \[{{H}_{3}}P{{O}_{2}}\]

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

    D) \[{{H}_{3}}P{{O}_{4}}\]

    View Answer play_arrow
  • question_answer168) Which of the following converts carbonyl compounds into hydrocarbons?

    A) \[{{H}_{2}}/Pt\]

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

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

    D) \[Zn\text{-}H/HCl\]

    View Answer play_arrow
  • question_answer169) Which of the following chloride is water insoluble?

    A) \[HCl\]

    B) \[AgCl\]

    C) Both a and b

    D) None of these

    View Answer play_arrow
  • question_answer170) How many neutrons are present in tritium nucleus?

    A) 2

    B) 3

    C) 1

    D) 0

    View Answer play_arrow
  • question_answer171) The total number of protons in \[10\,\,g\] of calcium carbonate is\[({{N}_{0}}=6.023\times {{10}^{23}})\]:

    A) \[3.01\times {{10}^{24}}\]

    B) \[4.06\times {{10}^{24}}\]

    C) \[2.01\times {{10}^{24}}\]

    D) \[3.02\times {{10}^{24}}\]

    View Answer play_arrow
  • question_answer172) By dissolving \[5\,\,g\] substance in \[50\,\,g\] of water, the decrease in freezing point is \[{{1.2}^{o}}C\]. The\[g\] molal depression is\[{{185}^{o}}C\]. The molecular weight of substance is:

    A) \[105.4\]

    B) \[118.2\]

    C) \[137.2\]

    D) \[154.2\]

    View Answer play_arrow
  • question_answer173) The high boiling point of water is due to which reason:

    A) co-ordinate bonding

    B) covalent bond

    C) electrostatic force of attraction

    D) hydrogen bonding

    View Answer play_arrow
  • question_answer174) Which is correct for an endothermic reaction?

    A) \[\Delta H\] is positive

    B) \[\Delta H\]is negative

    C) \[\Delta H\]is negative

    D) \[\Delta H=\]zero

    View Answer play_arrow
  • question_answer175) Acetonitriles on hydrolysis produce which of the following?

    A) Amide

    B) Acid

    C) Amines

    D) Carbonyl compounds

    View Answer play_arrow
  • question_answer176) The radius of hydrogen atom is\[0.53\,\,\overset{o}{\mathop{A}}\,\]. The radius of \[_{3}L{{i}^{+2}}\] is of:

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

    B) \[0.17\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    C) \[0.57\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) \[0.99\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

    View Answer play_arrow
  • question_answer177) The purest form of coal is:

    A) peat

    B) anthracite

    C) bituminous

    D) lignite

    View Answer play_arrow
  • question_answer178) The correct sequence of hybridisation of methane, ethene and acetylene is:

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

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

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

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

    View Answer play_arrow
  • question_answer179) Which phosphorus reacts with \[KOH\] solution to produce phosphene gas?

    A) White phosphorus

    B) Red phosphorus

    C) Both (a) and (b)

    D) None of the above

    View Answer play_arrow
  • question_answer180) Sturated fatty acids are represented by which of the formula?

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

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

    C) \[{{C}_{n}}{{H}_{2n+1}}\]

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

    View Answer play_arrow
  • question_answer181) \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\xrightarrow{Sm/HCl}{{C}_{6}}{{H}_{5}}X\] is identified as:

    A) \[NO\]

    B) \[-N{{H}_{2}}\]

    C) \[NHOH\]

    D) none of these

    View Answer play_arrow
  • question_answer182) Acetic acid and\[{{P}_{2}}{{O}_{5}}\], reacts to produce which of the following?

    A) Acetic anhydride

    B) Acetaldehyde

    C) Phosphoric acid

    D) Acetone

    View Answer play_arrow
  • question_answer183) The test for unsaturation is confirmed by the decolonization of which of the following?

    A) Iodine water

    B) \[CuS{{O}_{4}}\] solution

    C) Bromine water

    D) All of these

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  • question_answer184) Which of the following element shows maximum valency?

    A) Carbon

    B) Barium

    C) Nitrogen

    D) Sulphur

    View Answer play_arrow
  • question_answer185) The volume of oxygen necessary for the complete combusion of \[20\,\,litre\] of propane is:

    A) \[40\,\,litre\]

    B) \[60\,\,litre\]

    C) \[80\,\,litre\]

    D) \[100\,\,litre\]

    View Answer play_arrow
  • question_answer186) Which reaction is used for the preparation of acetophenone?

    A) Reimer-Tiemann reaction

    B) Wurtz-Fittig reaction

    C) Friedel Crafts reaction

    D) Cannizzaros reaction

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  • question_answer187) \[0.005\,\,M\]acid solution has\[5pH\]. The percentage ionization of acid is:

    A) \[0.8%\]

    B) \[0.6%\]

    C) \[0.4%\]

    D) \[0.2%\]

    View Answer play_arrow
  • question_answer188) \[PVC\]polymer can be prepared which of the monomer?

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

    B) \[{{C}_{6}}{{H}_{5}}CH=C{{H}_{2}}\]

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

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

    View Answer play_arrow
  • question_answer189) \[C{{H}_{3}}COOH\]is weaker acid than\[{{H}_{2}}S{{O}_{4}}\]. It is due to

    A) more ionization

    B) less ionization

    C) covalent bond

    D) electrovalent bond

    View Answer play_arrow
  • question_answer190) The ortho and para hydrogen differ in respect of which of the following?

    A) In the molecular weight

    B) In the nature of spin of protons

    C) In the nature of spin of electrons

    D) In the number of protons

    View Answer play_arrow
  • question_answer191) Which of the following is correct according to adsorption isotherm?

    A) \[\frac{X}{m}\propto {{P}^{o}}\]

    B) \[\frac{X}{m}\propto P\]

    C) \[\frac{X}{m}\propto \frac{1}{{{p}^{1/n}}}\] all of these


    View Answer play_arrow
  • question_answer192) \[_{84}R{{n}^{219}}\] is a member of actinium series. The other member of this series is:

    A) \[_{89}A{{c}^{225}}\]

    B) \[^{90}T{{h}^{232}}\]

    C) \[_{15}{{P}^{35}}\]

    D) \[_{92}{{U}^{235}}\]

    View Answer play_arrow
  • question_answer193) The compressibility factor of an ideal gas is:

    A) 1

    B) 2

    C) 4

    D) 0

    View Answer play_arrow
  • question_answer194) Soaps can be classified as:

    A) carbohydrates

    B) ether

    C) salts of fatty acids

    D) None of the above

    View Answer play_arrow
  • question_answer195) In a chemical reaction two reactants takes part. The rate of reaction is directly proportional to the concentration of one of them and inversely proportional to the concentration of the other. The order of reaction is:

    A) \[zero\]

    B) \[1\]

    C) \[2\]

    D) \[4\]

    View Answer play_arrow
  • question_answer196) A gaseous mixture contains \[56\,\,g\] of \[{{N}_{2}}44\,\,g\] of \[C{{O}_{2}}\] and \[16\,\,g\] of\[C{{H}_{4}}\]. The total pressure of mixture is \[720\,\,mm\] of\[Hg\]. The partial pressure of methane is:

    A) \[75\,\,atm\]

    B) \[160\,\,atm\]

    C) \[180\,\,atm\]

    D) \[215\,\,atm\]

    View Answer play_arrow
  • question_answer197) The metal used to recover copper from a solution of \[CuS{{O}_{4}}\] is:

    A) \[Fe\]

    B) \[Hg\]

    C) \[Na\]

    D) \[Ag\]

    View Answer play_arrow
  • question_answer198) Amino acids have poptide linkage which is:

    A) \[-CO-NH-\]

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

    C) \[SO-NH-\]

    D) \[-CO-N-\]

    View Answer play_arrow
  • question_answer199) Phenacetin is used as:

    A) antipyretics

    B) antiseptics

    C) analgesic

    D) antimalarials

    View Answer play_arrow
  • question_answer200) Gravity separation process is used for the concentration of:

    A) calm-nine

    B) haematite

    C) chalcopyrite

    D) bauxite

    View Answer play_arrow
  • question_answer201) Structural unit of human kidney is :

    A) nephron

    B) ureter

    C) loop of Henie

    D) Bowmans capsule

    View Answer play_arrow
  • question_answer202) Heart of elephant is:

    A) aeurogonic

    B) myogenic

    C) both (a) and (b)

    D) none of these

    View Answer play_arrow
  • question_answer203) Citliated epithelium is present in:

    A) trachea

    B) ureter

    C) intestine

    D) nasal chamber

    View Answer play_arrow
  • question_answer204) Deltoid ridge is present in:

    A) hurnerus

    B) tibia-fibula

    C) radio-ulna

    D) femur

    View Answer play_arrow
  • question_answer205) One haemoglobin carries how many molecules of \[{{O}_{2}}\]?

    A) 4

    B) 2

    C) 6

    D) 8

    View Answer play_arrow
  • question_answer206) In which era life was absent:

    A) Archeozoic

    B) Paleozoic

    C) Proterzoic

    D) Azoic

    View Answer play_arrow
  • question_answer207) Function of mitochondria is:

    A) excretion

    B) respiration

    C) digestion

    D) excretion and respiration

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  • question_answer208) Pulp cavity of teeth is lined by:

    A) odontoblast

    B) chondroblast

    C) osteoblast

    D) amyloblast

    View Answer play_arrow
  • question_answer209) Secretion of gastric juice is controlled by :

    A) gastrin

    B) cholecystokinin

    C) enterogastrin

    D) none of these

    View Answer play_arrow
  • question_answer210) Meissner corpuscles are responsible for:

    A) heat and present in skin

    B) cold and present in skill

    C) pressure and present in skin

    D) pain and present in skin

    View Answer play_arrow
  • question_answer211) Pelivic girdle of rabbit consists of :

    A) ilium, ischium and pubis

    B) ilium, ischium and coracoid

    C) coracoid, scapula and clavicle

    D) ilium, coracoid and scapula

    View Answer play_arrow
  • question_answer212) Acoustic spots in frog are present in :

    A) ossious labyrinth

    B) carotid

    C) membranous labyrinth

    D) all of these

    View Answer play_arrow
  • question_answer213) Difference between bone and cartilage is :

    A) Haversian canal

    B) blood vessel

    C) lymph vessel

    D) all of these

    View Answer play_arrow
  • question_answer214) Separation of amino acid and carboxylic groups is called :

    A) deamination

    B) excretion

    C) egestion

    D) transamination

    View Answer play_arrow
  • question_answer215) Net gain of ATP in prokaryotes from a molecule of glucose when oxidized is :

    A) 40

    B) 38

    C) 36

    D) 34

    View Answer play_arrow
  • question_answer216) Mouth part of mosquito is :

    A) sucking and piercing type

    B) sponging type

    C) biting and chewing type

    D) none of these

    View Answer play_arrow
  • question_answer217) Which of the following is bot a source of vitamin A?

    A) Carrot

    B) Mango

    C) Apple

    D) Yeast

    View Answer play_arrow
  • question_answer218) Parathormone is secreted during :

    A) increased blood calcium level

    B) decreased blood calcium level

    C) increased blood sugar level

    D) decreased blood sugar level

    View Answer play_arrow
  • question_answer219) Which of the following is purely motor cranial nerve?

    A) Olfactory

    B) Optic

    C) Abducens

    D) Vagus

    View Answer play_arrow
  • question_answer220) Minimum regeneration power is present in :

    A) nervous tissue

    B) connective tissue

    C) epithelial tissue

    D) none of these

    View Answer play_arrow
  • question_answer221) Largest smooth muscle is present in :

    A) leg

    B) thigh

    C) uterus of pregnant woman

    D) urethra

    View Answer play_arrow
  • question_answer222) Respiratory centre is present in :

    A) cerebellum

    B) cerebrum

    C) medulla obtongata

    D) hypothalamus

    View Answer play_arrow
  • question_answer223) Absorption of \[{{H}_{2}}O\] in DCT is controlled by:

    A) ADH

    B) ACTH

    C) LH

    D) oxytocin

    View Answer play_arrow
  • question_answer224) Alary muscle is associated with :

    A) heart and circulation

    B) malpighian tubules and excretion

    C) trachea and respiration

    D) none of the above

    View Answer play_arrow
  • question_answer225) Organ of mastication in cockroach is :

    A) labrum

    B) labium

    C) mandibles

    D) maxilla

    View Answer play_arrow
  • question_answer226) Which of the following is an insect?

    A) Moth

    B) Mites

    C) Prawn

    D) Scorpion

    View Answer play_arrow
  • question_answer227) Complete metamorphosis is found in :

    A) house-fly and mosquito

    B) house-fly and cockroach

    C) mosquito and cockroach

    D) none of the above

    View Answer play_arrow
  • question_answer228) Forest of nephridia are present in :

    A) pharyngeal region

    B) clitellar region

    C) anal region

    D) none of these

    View Answer play_arrow
  • question_answer229) Common feature in earthworm and cockroach is:

    A) cuticle (exoskeleton)

    B) solid and ventral nerve cord

    C) nephridia

    D) Malpighian tubules

    View Answer play_arrow
  • question_answer230) In Ascaris, 3rd moulting takes place in :

    A) intestine

    B) lung

    C) liver

    D) egg

    View Answer play_arrow
  • question_answer231) Pseudocoelom is the characteristic of:

    A) annelida

    B) Echinodermata

    C) mollusca

    D) nematode

    View Answer play_arrow
  • question_answer232) In Hydra and present:

    A) one testes and one ovary

    B) one testes and-many ovary

    C) many testes and many ovary

    D) many testes and one ovary

    View Answer play_arrow
  • question_answer233) Wisdom teeth in human is :

    A) \[{{\text{3}}^{\text{rd}}}\] molar and 4 in number

    B) \[{{\text{3}}^{\text{rd}}}\]molar and 2 in number

    C) \[{{2}^{\text{rd}}}\] molar and 2 in number

    D) \[{{2}^{\text{rd}}}\] molar and 2 in number

    View Answer play_arrow
  • question_answer234) Recapitulation theory was proposed by :

    A) E. Haeckel

    B) Mendel

    C) Hugo does Vries

    D) Von Baer

    View Answer play_arrow
  • question_answer235) Down syndrome in due to :

    A) chromosome no. increase in 21st pair autosome

    B) chromosome no. decrease in 21st pair autosome

    C) chromosome no. increase in 18th pair autosome

    D) chromosome no. decrease in 18th pair autosome

    View Answer play_arrow
  • question_answer236) Pseudocoelom developed from :

    A) embryonic mesoderm

    B) archenteron

    C) blastocoel

    D) blaslopore lip

    View Answer play_arrow
  • question_answer237) Larva of Sycon is :

    A) parenchymula

    B) amphiblastula

    C) redia

    D) trochophore

    View Answer play_arrow
  • question_answer238) Choanocyte is the characteristic feature of:

    A) sponges

    B) nrthropods

    C) annelida

    D) none of these

    View Answer play_arrow
  • question_answer239) Kala-azar is caused by;

    A) Trypanosoma cruzi

    B) Leishmaniti donovani

    C) Trypanosoma brucei

    D) Trypanosoma gambiense

    View Answer play_arrow
  • question_answer240) Which one of the following pairs is correctly matched?

    A) Aedes - plague

    B) Anopheles - malaria

    C) House fly - yellow fever

    D) Body louse - typhoid

    View Answer play_arrow
  • question_answer241) First evidence of ceremonial burial of dead body and belief in religion have been found with fossil of:

    A) Neanderthal

    B) Cro-magnon

    C) Homo-erectus

    D) Homo habilis

    View Answer play_arrow
  • question_answer242) Barr body is associated with :

    A) sex chromosome of female

    B) sex chromosome of male

    C) autosome of female

    D) autosome of male

    View Answer play_arrow
  • question_answer243) Darwins Book Origin of New Species by Natural Selection was published in :

    A) 1809

    B) 1859

    C) 1957

    D) 1869

    View Answer play_arrow
  • question_answer244) All stages of Plasmodium get digested in stomach of female Anopheles except:

    A) sporozoite

    B) gamctocyle

    C) erythrocyte

    D) none of these

    View Answer play_arrow
  • question_answer245) Which one of the following couple were suggested by Doctors to not have more than one child?

    A) \[R{{h}^{+}}\] male and \[R{{h}^{-}}\] female

    B) \[R{{h}^{-}}\] male and \[R{{h}^{+}}\] female

    C) \[R{{h}^{+}}\] male and \[R{{h}^{-}}\] female

    D) \[R{{h}^{-}}\] male and \[R{{h}^{-}}\] female

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  • question_answer246) Colour blindness is due to :

    A) recessive female chromosome

    B) dominant female chromosome

    C) recessive male chromosome

    D) dominant male chromosome

    View Answer play_arrow
  • question_answer247) According to one of the most accepted theory, the earth atmosphere before any life had originated consisted of \[{{H}_{2}}O,\,{{H}_{2}},\,N{{H}_{2}}\] and :

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

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

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

    D) none of these

    View Answer play_arrow
  • question_answer248) Abiogenesis is the :

    A) origin of life from non-living organism

    B) origin of life from living organism

    C) origin of viruses and microbes

    D) spontaneous generation

    View Answer play_arrow
  • question_answer249) Alleles are:

    A) alternate forms of a gene

    B) homologous chromosome

    C) pair of sex chromosome

    D) none of these

    View Answer play_arrow
  • question_answer250) Genetic recombination is due to :

    A) fertilization and meiosis

    B) mitosia and meiosis

    C) fertilization and mitosis

    D) none of these

    View Answer play_arrow
  • question_answer251) Pyramid of energy is always :

    A) upright

    B) downward

    C) upright in pond and downward in forest

    D) upright in forest and downward in pond

    View Answer play_arrow
  • question_answer252) Peacock eats a snake and snake eats frog and frog eats insect while insect eats green plant, then position of peacock is :

    A) primary producer

    B) secondary producer

    C) decomposer

    D) top at the apex of food pyramid

    View Answer play_arrow
  • question_answer253) Source of energy in an ecosystem is :

    A) sun

    B) ATP

    C) sugar made by plant

    D) green plant

    View Answer play_arrow
  • question_answer254) Effect of pollution is first marked on :

    A) micro-organisms

    B) green vegetation of an area

    C) food crop

    D) none of these

    View Answer play_arrow
  • question_answer255) Legume plants are important for atmosphere because they :

    A) help in \[N{{O}_{2}}\] fixation

    B) do not help in \[N{{O}_{2}}\] fixation

    C) increase soil fertility

    D) all of these

    View Answer play_arrow
  • question_answer256) Pollution is not caused by :

    A) thermal power plant

    B) aulomobile

    C) radioactive power plant

    D) hydroelectric power plant

    View Answer play_arrow
  • question_answer257) endosperm of angiospermic plant is :

    A) triploid

    B) dipioid

    C) haploid

    D) tetraploid

    View Answer play_arrow
  • question_answer258) Taj Mahal marble is affected by:

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

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

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

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

    View Answer play_arrow
  • question_answer259) Sub-divisions in cell cycle are :

    A) \[S,\,{{G}_{2}},\,M\] and \[{{G}_{1}}\]

    B) \[{{G}_{1}},\,{{G}_{2}}\] and M

    C) \[S,\,M,\,{{G}_{1}}\] and \[{{G}_{2}}\]

    D) \[{{G}_{2}},\,{{G}_{1}},\,M\] and S

    View Answer play_arrow
  • question_answer260) Minimata disease first occured in :

    A) Japan

    B) China

    C) Korea

    D) Russia

    View Answer play_arrow
  • question_answer261) Sexual reproduction leads to :

    A) genetic recombination

    B) polypoidy

    C) aneuploidy

    D) euploidy

    View Answer play_arrow
  • question_answer262) 5th June is celebrated as :

    A) World forest day

    B) World environment day

    C) World Red Cross day

    D) World food day

    View Answer play_arrow
  • question_answer263) Which of the following soil is transported by air?

    A) Alluvial

    B) Aerial

    C) Eolian

    D) Glacial

    View Answer play_arrow
  • question_answer264) Plants growing in dry and saline soil are called :

    A) xerophyte

    B) hydrophyte

    C) halophyte

    D) heliophyte

    View Answer play_arrow
  • question_answer265) Which one of the following is well-developed present in hydropyte?

    A) Aerenchyma

    B) Collenchyma

    C) Stomata

    D) Root system

    View Answer play_arrow
  • question_answer266) Tropical dense forests are due to :

    A) low rainfall and low temperature

    B) high rainfall and low temperature

    C) low rainfall and high temperature

    D) high rainfall and high temperature

    View Answer play_arrow
  • question_answer267) Aquatic photo diffraction is :

    A) euphotic, disphotic and aphotic

    B) aphotic, euphotic and disphotic

    C) euphotic, aphotic and disphotic

    D) euphotic, disphotic and aphotic

    View Answer play_arrow
  • question_answer268) Community is:

    A) a group of independent and interacting population of different species

    B) a group of independent and interacting population of same species

    C) a group of independent and interacting population of same species in a specific area

    D) a group of independent and interacting population of different species in a specific area

    View Answer play_arrow
  • question_answer269) Terracing is done in :

    A) desert areas

    B) hilly areas

    C) dry areas

    D) plain areas

    View Answer play_arrow
  • question_answer270) Term ecosystem was given by :

    A) Odum

    B) Koestler

    C) Tansley

    D) Mobius and Forbes

    View Answer play_arrow
  • question_answer271) Step of respiration arc controlled by :

    A) substrates

    B) enzymes

    C) hormone

    D) bile juice

    View Answer play_arrow
  • question_answer272) Opening of flower is an example of:

    A) spontaneous movement

    B) hyponastic movement

    C) epinastic movement

    D) cleistogamous movement

    View Answer play_arrow
  • question_answer273) Removal of ring wood of tissue outside the vascular cambium from the tree trunk kills it because :

    A) water cannot move up

    B) food does not travel down and root become starved

    C) shoot become starved

    D) annual ring and not produced

    View Answer play_arrow
  • question_answer274) Law of Mendel which is not completely applicable is?

    A) Co-dominance

    B) Law of segregation

    C) Law of independent assortment

    D) Law of dominance

    View Answer play_arrow
  • question_answer275) Prokaryotic genetic system his :

    A) DNA and histone

    B) DNA and no histone

    C) no DNA and histone

    D) no DNA and no histone

    View Answer play_arrow
  • question_answer276) Study of environment and animal relation is :

    A) ecosystem

    B) phytosociology

    C) biotic community

    D) ecology

    View Answer play_arrow
  • question_answer277) A root was described as it adventitious root because:

    A) arose from plumule

    B) was used variously for storage of food

    C) was swollen

    D) was growing in marshy place

    View Answer play_arrow
  • question_answer278) Cycas revoluta is popularly known as :

    A) data palm

    B) sago palm

    C) sea palm

    D) royal palm

    View Answer play_arrow
  • question_answer279) Circinate vernation is present in :

    A) moss

    B) fern

    C) algae

    D) gymnosperm

    View Answer play_arrow
  • question_answer280) Wilting of plant is because:

    A) xylem is blocked

    B) phloem is blocked

    C) epidermis and few roots are removed

    D) pith is removed

    View Answer play_arrow
  • question_answer281) Auxanometer is used to detect:

    A) respiration

    B) transpiration

    C) plant movement

    D) growth

    View Answer play_arrow
  • question_answer282) Smallest plant which contain green pigment such as higher green plant is :

    A) schizomycetes

    B) rhodophyceae

    C) chlorophyceae

    D) phaeophyceae

    View Answer play_arrow
  • question_answer283) Term basal body is associated with the development of:

    A) cilia and flagella

    B) cell plate

    C) phragmoplast

    D) kinetochore

    View Answer play_arrow
  • question_answer284) Golgi body originates from :

    A) lysosome

    B) endoplasmic reticulum

    C) mitochondria

    D) cell membrane

    View Answer play_arrow
  • question_answer285) Lipid molecules in plasma membrane are arranged in which manner?

    A) scattered

    B) series

    C) alternate

    D) head parallel

    View Answer play_arrow
  • question_answer286) Structure of nuclear membrane helps in :

    A) organization of the spindle

    B) synapsis of homologous chromosome

    C) nucleo-cytoplasmic exchange of material

    D) anaphasic sepration of daughter chromosome

    View Answer play_arrow
  • question_answer287) Quantasomes are found in :

    A) mitochondria

    B) chloroplast

    C) lysosome

    D) endoplasmic retiuculum

    View Answer play_arrow
  • question_answer288) Hydrolytic enzymes are stored in :

    A) Golgi bodies

    B) Lysosumes

    C) Endoplasmic reticulum

    D) Mitochondria

    View Answer play_arrow
  • question_answer289) Micronutrients are :

    A) an important as macro nutrient but are required in small amount

    B) less important than macro nutrient

    C) called micro as they play only a minor role in plant nutrition

    D) none of these

    View Answer play_arrow
  • question_answer290) Quiescent centre is present in :

    A) shoot apex

    B) root apex

    C) both a and b

    D) meristematic tissue

    View Answer play_arrow
  • question_answer291) Chlamydomonas occurs in:

    A) fresh water

    B) ponds and lake

    C) river

    D) ocean

    View Answer play_arrow
  • question_answer292) Ainsworths put Rhizopus in :

    A) zygomycotina

    B) mastigomycotina

    C) myxomycotina

    D) ascomycotina

    View Answer play_arrow
  • question_answer293) Root hair absorb water from the soil on account of:

    A) turgor pressure

    B) osmotic pressure

    C) suction pressure

    D) root pressure

    View Answer play_arrow
  • question_answer294) Smallest bacteria is :

    A) Spirillum

    B) Bacillus

    C) Dialister

    D) None of these

    View Answer play_arrow
  • question_answer295) During photosynthesis :

    A) \[{{O}_{2}}\] evolved comes from \[C{{O}_{2}}\]

    B) ATP is formed

    C) ATP is not formed

    D) water is required as medium but it does not take part in photosynthesis

    View Answer play_arrow
  • question_answer296) Mosses occurs in moist place because :

    A) they cannot grow on land

    B) their gamete fuse in water

    C) they lack vascular tissue

    D) they lack root and stomata

    View Answer play_arrow
  • question_answer297) Cuticle is secreted by :

    A) epidermis

    B) endodermis

    C) both (a) and (b)

    D) hypodermis

    View Answer play_arrow
  • question_answer298) Ribosome may also be called :

    A) Microsome

    B) Dictyosome

    C) Ribonucleo protein

    D) Oxysomes

    View Answer play_arrow
  • question_answer299) Plasmids occur in:

    A) Viruses

    B) Chromosomes

    C) Bacteria

    D) Chloroplasts

    View Answer play_arrow
  • question_answer300) A place was rocky and barren but now there is a green forest; the sequence of origin is:

    A) lichen, moss, herbs, shrubs

    B) moss, lichen, herbs, shrubs

    C) lichen, moss, shrubs, herbs

    D) shrubs, herbs, moss, lichen

    View Answer play_arrow


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