Solved papers for RAJASTHAN PMT Rajasthan - PMT Solved Paper-2009

done Rajasthan - PMT Solved Paper-2009

  • question_answer1) The value of current J in the circuit will be

    A) 1.7 A

    B) 2.1 A

    C) 3 A

    D) zero

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  • question_answer2) Two plane mirrors are inclined to each other at angle \[60{}^\circ \]. Ray incident on first mirror parallel to the second mirror becomes parallel to first mirror after reflection. Angle of deviation is

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

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

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

    D) \[120{}^\circ \]

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  • question_answer3) The equivalent capacitance of the circuit will be

    A) \[\text{1}\text{F}\]

    B) \[\text{3}\text{F}\]

    C) \[\text{9}\text{F}\]

    D) \[\text{4}\text{F}\]

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  • question_answer4) If the equivalent capacitance between A and B is \[\text{1}\text{F,}\]then the value of C will be

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

    B) \[\text{4}\text{F}\]

    C) \[\text{3}\text{F}\]

    D) \[\text{6}\text{F}\]

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  • question_answer5) If the input is given between A and C, then the output at the ends of R will be

    A) fully rectified

    B) half rectified

    C) AC

    D) None of these

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  • question_answer6) If the acceleration-displacement graph of simple harmonic motion of a particle is given, then the time period of the particle will be

    A) \[\text{2}\pi \]

    B) \[\text{3}\pi \]

    C) \[4\pi \]

    D) \[\text{5}\pi \]

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  • question_answer7) Figure shows four, p-V diagram for the given sample of gas. In which case no exchange of heat occurs with the sample?

    A) P

    B) Q

    C) R

    D) S

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  • question_answer8) The charge on a particle Y is double the charge on particle X. These two particles X and Y after being accelerated through the same potential difference enter a region of uniform magnetic field and describe circular paths of radii R1 and R2 respectively. The ratio of the mass of X to that of Y is

    A) \[{{(2{{R}_{1}}/{{R}_{2}})}^{2}}\]

    B) \[{{({{R}_{1}}/2{{R}_{2}})}^{2}}\]

    C) \[R_{1}^{2}/2R_{2}^{2}\]

    D) \[2{{R}_{1}}/{{R}_{2}}\]

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  • question_answer9) In a step up transformer the turn ratio is 1 : 10. A resistance of\[200\,\Omega \]connected across the secondary is drawing a current of 0.5 A. What is the primary voltage and current?

    A) 50 V, 1 A

    B) 10 V, 5 A

    C) 25 V, 4 A

    D) 20 V, 2 A

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  • question_answer10) Dimensions of \[{{\varepsilon }_{0}}\] are

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

    B) \[\text{ }\!\![\!\!\text{ }{{\text{M}}^{2}}{{\text{L}}^{\text{-3}}}{{\text{T}}^{\text{2}}}\text{A }\!\!]\!\!\text{ }\]

    C) \[\text{ }\!\![\!\!\text{ }{{\text{M}}^{-1}}{{\text{L}}^{\text{-3}}}{{\text{T}}^{\text{4}}}{{\text{A}}^{2}}\text{ }\!\!]\!\!\text{ }\]

    D) \[\text{ }\!\![\!\!\text{ }{{\text{M}}^{2}}{{\text{L}}^{\text{3}}}{{\text{T}}^{\text{-2}}}\text{A }\!\!]\!\!\text{ }\]

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  • question_answer11) Dimensions of \[\frac{R}{L}\]are

    A) \[[{{T}^{2}}]\]

    B) \[[T]\]

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

    D) \[[{{T}^{-2}}]\]

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  • question_answer12) The unit of magnetic moment is

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

    B) A-m

    C) \[A-{{m}^{3}}\]

    D) \[kg-{{m}^{3}}\]

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  • question_answer13) In SI system the unit of dipole moment is

    A) C-m

    B) \[C-{{m}^{2}}\]

    C) \[C/{{m}^{2}}\]

    D) C/m

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  • question_answer14) Electron volt is a unit of

    A) potential

    B) charge

    C) power

    D) energy

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  • question_answer15) Which of the following can be written as\[\text{kg-}{{\text{m}}^{\text{2}}}{{\text{A}}^{\text{-2}}}{{\text{T}}^{\text{-2}}}\text{?}\]

    A) Inductance

    B) Reactance

    C) Capacitance

    D) Resistance

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  • question_answer16) If the frequency of\[{{K}_{\alpha ,}}\] X-ray of the element of atomic number 31 is\[f,\] then the frequency of\[{{K}_{\alpha ,}}\] X-ray for atomic number 51 is

    A) 25/9 \[f\]

    B) 16/25\[f\]

    C) 9/25 \[f\]

    D) zero

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  • question_answer17) A bird weighing 1 kg sitting on the base of a wire mesh cage weighing 1.5 kg. The bird starts flying in the cage. The weight of the bird cage assembly will be

    A) 1250g

    B) 1500g

    C) 1750g

    D) None of these

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  • question_answer18) If the escape velocity for a monkey from the earth surface is 11.2 km/s, then the escape velocity for the elephant is

    A) less than 11.2

    B) more than 11.2

    C) 11.2 km/s

    D) None of these

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  • question_answer19) If the sphere of iron is heated, then its

    A) density decreases

    B) volume increases

    C) radius decreases

    D) None of these

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  • question_answer20) If a bar magnet is droping through the copper ring, then its velocity

    A) decreases

    B) increases

    C) remain unaffected

    D) None of these

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  • question_answer21) The power factor of a good choke coil is

    A) nearly zero

    B) exactly zero

    C) nearly one

    D) exactly one

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  • question_answer22) If two spheres of same masses and radius are brought in contact, then the force of attraction between them will be proportional to

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

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

    C) \[{{r}^{6}}\]

    D) \[{{r}^{4}}\]

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  • question_answer23) Capacitors are used for

    A) AC

    B) DC

    C) Both AC and DC

    D) None of these

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  • question_answer24) The ratio of current flowing through primary and secondary of a transformers depends on

    A) number of turns

    B) resistance

    C) capacitance

    D) inductance

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  • question_answer25) A proton, a deuteron and an a-particle having the same momentum, enters a region of uniform electric field between the parallel plates of a capacitor. If the electric field is perpendicular to the initial direction of the particles. Then, the ratio of deviations of these particles

    A) 1 : 2 : 8

    B) 1 : 2 : 4

    C) 1 : 2 : 2

    D) 1 : 1 : 2

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  • question_answer26) If a radioactive substance decays \[\frac{\text{1}}{\text{16}}\text{th}\] of its original amount in 2 h, then the half-life of that substance is

    A) 15 min

    B) 30 min

    C) 45 min

    D) None of these

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  • question_answer27) If on applying the potential of 20 V on a conductor its conductance becomes\[8\,{{(\Omega )}^{-1}},\] then the current flowing through it will be

    A) 120 A

    B) 160 A

    C) 90 A

    D) 80 A

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  • question_answer28) Equivalent resistance of the given circuit is

    A) R

    B) R/2

    C) R/4

    D) R/6

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  • question_answer29) In a biprism experiment by using light of wavelength \[5000\overset{\text{o}}{\mathop{\text{A}}}\,,\] 5 mm wide fringes are obtained on a screen 1.0 m away from the coherent sources. The separation between the two coherent sources is

    A) 1.0 mm

    B) 0.1 mm

    C) 0.05 mm

    D) 0.01 mm

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  • question_answer30) The power of lens used by a short-sighted person is -2 D. Find the maximum distance of an object, which he can see without spectacles

    A) 25 cm

    B) 50 cm

    C) 100 cm

    D) 10 cm

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  • question_answer31) Kirchhoffs first law \[(\Sigma i=0)\] expresses the conservation of

    A) energy

    B) charge

    C) momentum

    D) None of these

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  • question_answer32) In p-type semiconductors majority charge carriers are

    A) electrons

    B) holes

    C) neutrons

    D) protons

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  • question_answer33) A \[1\,\mu F\] capacitance of TV is subjected to 4000 V potential difference. The energy stored in the capacitor is

    A) 8 J

    B) 16 J

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

    D) \[2\times {{10}^{-3}}\,J\]

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  • question_answer34) A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25 J the angle, which the force makes with the direction of motion of the body is

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

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

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

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

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  • question_answer35) A particle of mass m is projected with a velocity v making an angle of \[45{}^\circ \] with the horizontal. The magnitude of angular momentum of the projectile about the axis of projection, when the particle is at maximum height

    A) zero

    B) \[\frac{m{{v}^{3}}}{4\sqrt{2g}}\]

    C) \[\frac{m{{v}^{3}}}{\sqrt{2g}}\]

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

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  • question_answer36) If the moment of inertia of a disc about an axis tangential and parallel to its surface be\[l,\]then what will be the moment of inertia about the axis tangential but perpendicular to the surface?

    A) \[\frac{6}{5}I\]

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

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

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

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  • question_answer37) The magnetic needle of a tangent galvanometer is deflected by an angle \[30{}^\circ \] due to a magnet. The horizontal component of earths magnetic field is \[0.34\,\times {{10}^{-4}}T\] along the plane of the coil. The intensity of magnetic field of magnet is

    A) \[1.96\,\times {{10}^{-4}}T\]

    B) \[1.96\,\times {{10}^{-5}}T\]

    C) \[1.96\,\times {{10}^{4}}T\]

    D) \[1.96\,\times {{10}^{5}}T\]

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  • question_answer38) A coil of resistance R and inductance L is connected to a battery of emf E volt. The final current in the coil is

    A) \[\text{E/R}\]

    B) \[\text{E/L}\]

    C) \[\sqrt{E/({{R}^{2}}+{{L}^{2}})}\]

    D) \[\sqrt{\frac{EL}{({{R}^{2}}+{{L}^{2}})}}\]

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  • question_answer39) The refractive indices of violet and red light are 1.54 and 1.52 respectively. If the angle of the prism is \[10{}^\circ \], the angular dispersion is

    A) \[0.02{}^\circ \]

    B) \[0.2{}^\circ \]

    C) \[3.06{}^\circ \]

    D) \[30.6{}^\circ \]

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  • question_answer40) The focal lengths of the objective and eye-piece of a telescope are respectively 100 cm and 2 cm. The moon substends an angle of \[0.5{}^\circ \] at the eye. If it is looked through the telescope, the angle subtended by the moons image will be

    A) \[100{}^\circ \]

    B) \[50{}^\circ \]

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

    D) \[10{}^\circ \]

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  • question_answer41) The temperature of a body on Kelvin scale is found to be x K. When it is measured by Fahrenheit thermometer, it is found to be\[x{}^\circ F\], then the value of x is

    A) 30

    B) 313

    C) 574.25

    D) 301.25

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  • question_answer42) 42. Two containers of equal volume contain the same gas at pressure\[{{P}_{1}}\]and\[{{P}_{2}}\]and absolute temperature\[{{T}_{1}}\]and\[{{T}_{2}}\]respectively. On joining the vessels the gas reaches a common pressure p and common temperature T. The ratio p/T is equal to

    A) \[\frac{{{P}_{1}}}{{{T}_{1}}}+\frac{{{P}_{2}}}{{{T}_{2}}}\]

    B) \[\frac{{{p}_{1}}{{T}_{1}}+{{p}_{2}}{{T}_{2}}}{{{({{T}_{1}}+{{T}_{2}})}^{2}}}\]

    C) \[\frac{{{p}_{1}}{{T}_{2}}+{{p}_{2}}{{T}_{1}}}{{{({{T}_{1}}+{{T}_{2}})}^{2}}}\]

    D) \[\frac{{{p}_{1}}}{2{{T}_{1}}}\,+\frac{{{p}_{2}}}{2{{T}_{2}}}\]

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  • question_answer43) \[1\,c{{m}^{3}}\] of water at its boiling point absorbs 540 cal of heat to become steam with a volume of \[1671\,c{{m}^{3}}\]. If the atmospheric pressure \[=1.013\times {{10}^{5}}\,N/{{m}^{2}}\] and the mechanical equivalent of heat= 4.19J/cal, the energy spent in this process in overcoming intermolecular forces is

    A) 540 cal

    B) 40 cal

    C) 500 cal

    D) zero

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  • question_answer44) N atoms of a radioactive element emit n-alpha particles per second. The half-life of the element is

    A) \[\frac{n}{N}s\]

    B) \[\frac{N}{n}s\]

    C) \[\frac{0.693N}{n}s\]

    D) \[\frac{0.693n}{N}s\]

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  • question_answer45) Two long parallel wires P and Q are both perpendicular to the plane of the paper with distance 5 m between them. If P and Q carry current of 2.5 A and 5 A respectively in the same direction, then the magnetic field at a point half way between the wires is

    A) \[\frac{\sqrt{3}{{\mu }_{0}}}{2\pi }\]

    B) \[\frac{{{\mu }_{0}}}{\pi }\]

    C) \[\frac{3{{\mu }_{0}}}{2\pi }\]

    D) \[\frac{{{\mu }_{0}}}{2\pi }\]

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  • question_answer46) An alternating potential of frequency\[f\]is applied on a circuit containing a resistance R and a choke L in series. The impedance of this current is

    A) \[R+2\pi fL\]

    B) \[\sqrt{{{R}^{2}}+4{{\pi }^{2}}{{f}^{2}}{{L}^{2}}}\]

    C) \[\sqrt{{{R}^{2}}+{{L}^{2}}}\]

    D) \[\sqrt{{{R}^{2}}+2\pi fL}\]

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  • question_answer47) There is a voltmeter in a circuit. In order to triple its range, the resistance of how much value should be used?

    A) 2R

    B) R/2

    C) 3R

    D) 4R

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  • question_answer48) A wire is bent in the form of a triangle now the equivalent resistance R between its one end and the midpoint of the side is

    A) \[\frac{5R}{12}\]

    B) \[\frac{7R}{12}\]

    C) \[\frac{3R}{12}\]

    D) \[\frac{R}{12}\]

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  • question_answer49) Which of the following is incorrect?

    A) \[{{C}_{V}}=\frac{R}{\gamma -1}\]

    B) \[{{C}_{P}}=\frac{\gamma R}{\gamma -1}\]

    C) \[\frac{{{C}_{P}}}{{{C}_{V}}}=\gamma \]

    D) \[{{C}_{P}}-{{C}_{V}}=2R\]

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  • question_answer50) A mass of 20 kg moving with a speed of 10 m/s collides with another stationary mass of 5 kg. As a result of the collision both masses stick together. The kinetic energy of the composite mass will be

    A) 600 J

    B) 800 J

    C) 1000 J

    D) 1200 J

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  • question_answer51) The electric field between two parallel plates of a capacitor is \[2.1\,\times {{10}^{-5}}\]. If a medium is inserted between the plates than the electric field becomes \[1.0\,\times {{10}^{-5}}\]. Now, the value of dielectric will be

    A) 2

    B) 3

    C) 4

    D) 5

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  • question_answer52) A ray of light propagates from glass (refractive index = 3/2) to water (refractive index = 4/3). The value of the critical angle is

    A) \[{{\sin }^{-1}}\left( \frac{1}{2} \right)\]

    B) \[{{\sin }^{-1}}\left( \sqrt{\frac{8}{9}} \right)\]

    C) \[{{\sin }^{-1}}\left( \frac{8}{9} \right)\]

    D) \[{{\sin }^{-1}}\left( \frac{5}{7} \right)\]

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  • question_answer53) An electric heater of resistance\[6\,\Omega \] is run for 10 min on a 120 V line. The energy liberated in this period of time is

    A) \[7.2\,\times {{10}^{3}}J\]

    B) \[14.4\,\times {{10}^{5}}J\]

    C) \[43.2\,\times {{10}^{4}}J\]

    D) \[28.8\,\times {{10}^{4}}J\]

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  • question_answer54) Lenzs law gives

    A) the magnitude of the induced emf

    B) the direction of the induced current

    C) both the magnitude and direction of the induced current

    D) the magnitude of the induced current

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  • question_answer55) When two bodies collide elastically, then

    A) kinetic energy of the system alone is conserved

    B) only momentum is conserved

    C) both energy and momentum are conserved

    D) neither energy nor momentum is conserved

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  • question_answer56) A satellite moves around the earth in a circular orbit of radius r with speed v. If the mass of the satellite is M, its total energy is

    A) \[-1/2M_{v}^{2}\]

    B) \[1/2M_{v}^{2}\]

    C) \[3/2M_{v}^{2}\]

    D) \[M_{v}^{2}\]

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  • question_answer57) A telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is of cussed on a distant object is such a way that parallel rays comes out from the eye lens. If the object subtends an angle \[2{}^\circ \] at the objective the angle subtended by the image at the eye is

    A) \[10{}^\circ \]

    B) \[24{}^\circ \]

    C) \[50{}^\circ \]

    D) \[1/6{}^\circ \]

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  • question_answer58) If the steel bob of a simple pendulum is replaced by a wooden bob, then its time period will

    A) increase

    B) decrease

    C) remains the same

    D) first increases and then decreases

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  • question_answer59) An electric dipole is placed along the x-axis at the origin 0. A point P is at a distance of 20 cm from this origin such that OP makes an angle\[\text{/3}\]with the x-axis. If the electric field at P makes an angle \[\theta \] with the x-axis, the value of \[\theta \] would be

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

    B) \[\frac{\pi }{3}+{{\tan }^{-1}}\left( \frac{\sqrt{3}}{2} \right)\]

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

    D) \[{{\tan }^{-1}}\left( \frac{\sqrt{3}}{2} \right)\]

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  • question_answer60) The wavelength of light in two liquids x and y are \[3500\overset{\text{o}}{\mathop{\text{A}}}\,\] and \[7000\overset{\text{o}}{\mathop{\text{A}}}\,\], then the critical angle of x relative to y will be

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

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

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

    D) \[15{}^\circ \]

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  • question_answer61) An ideal transformer has 500 rums in the primary and 2500 in the secondary. The meters of the secondary are indicating 200 V, 8 A, under these conditions. What would the meters of the primary read?

    A) 100 V, 16 A

    B) 40 V, 40 A

    C) 160 V, 10 A

    D) 80 V, 20 A

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  • question_answer62) Sensitivity of potentiometer can be increased by

    A) increasing the emf of the cell

    B) increasing the length of the potentiometer wire

    C) decreasing the length of the potentiometer wire

    D) None of the above

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  • question_answer63) The following four wires are made of same material and same tension is applied on them. Which one will have maximum increase in length?

    A) Length = 100 cm, Diameter = 1 mm

    B) Length = 50 cm, Diameter = 0.5 mm

    C) Length = 200 cm, Diameter = 2 mm

    D) Length = 300 cm, Diameter = 3 mm

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  • question_answer64) Radius of a capillary is \[2\times {{10}^{-3}}m\]. A liquid of weight \[6.28\,\times {{10}^{-4}}\,N\] may remain in the capillary, then the surface tension of liquid will be

    A) \[5\times {{10}^{-3}}\,N/m\]

    B) \[5\times {{10}^{-2}}\,N/m\]

    C) 5 N/m

    D) 50 N/m

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  • question_answer65) If two tuning forks A and B are sounded together, they produce 4 beats/s. A is then slightly loaded with wax, they produce 2 beats/s when sounded again. The frequency of A is 256 Hz. The frequency of B will be

    A) 250 Hz

    B) 252 Hz

    C) 260 Hz

    D) 262 Hz

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  • question_answer66) Two waves are given by\[=a\sin (\omega t-kx)\]and \[{{y}_{2}}=a\cos (\omega t-kx).\]The phase difference between the two waves is

    A) \[\text{/4}\]

    B) \[\]

    C) \[\text{/8}\]

    D) \[\text{/2}\]

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  • question_answer67) Period of oscillation of mass attached to a spring and performing SHM is T. The spring is now cut into four equal pieces and the same mass attached to one piece. Now, the period of its simple harmonic oscillations is

    A) 2T

    B) T/4

    C) T/2

    D) T

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  • question_answer68) An electron makes a transition from orbit n = 4 to the orbit n = 2 of a hydrogen atom. The wave number of the emitted radiation (R = Rydbergs constant) will be

    A) 16/3R

    B) 2R/16

    C) 3R/16

    D) 4R/16

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  • question_answer69) A uniform rope of length \[l\] lies on a table. If the coefficient of friction is \[\mu \] then the maximum length \[{{l}_{1}}\] of the part of this rope which can overhang from the edge of the table without sliding down is

    A) \[\frac{l}{\mu }\]

    B) \[\frac{l}{\mu +1}\]

    C) \[\frac{\mu l}{1+\mu }\]

    D) \[\frac{\mu l}{\mu -1}\]

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  • question_answer70) The magnetic flux linked with a coil at any instant t is given by \[\phi =5{{t}^{3}}\,-100t+300,\] the emf induced in the coil after t = 2 s is

    A) - 40 V

    B) 40 V

    C) 140 V

    D) 300 V

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  • question_answer71) An ideal heat engine working between temperature\[{{T}_{1}}\] and \[{{T}_{2}}\]has an efficiency \[\eta \] the new efficiency if temperature of both the source and sink are doubled, will be

    A) \[\text{/2}\]

    B) \[\]

    C) \[2\,\]

    D) \[\text{3}\,\]

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  • question_answer72) A 50 g bullet moving with velocity 10 m/s strikes a block of mass 950 g at rest and gets embedded into it. The loss in kinetic energy will be

    A) 100%

    B) 95%

    C) 5%

    D) 50%

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  • question_answer73) The sun radiates energy in all directions. The average radiation received on the earth surface from the sun per second is \[1.4\,kW/{{m}^{3}}\]. The average distance between sun and earth is \[1.5\times {{10}^{11}}m\]. The mass lost by the sun per day

    A) \[4.4\,\times {{10}^{10}}kg\]

    B) \[7.6\,\times {{10}^{14}}kg\]

    C) \[3.8\times {{10}^{11}}kg\]

    D) \[3.8\times {{10}^{14}}kg\]

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  • question_answer74) Every gas behaves as an ideal gas

    A) at high temperature and low pressure

    B) at low temperature and high pressure

    C) at normal temperature and pressure

    D) None of the above

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  • question_answer75) In an AC circuit, the current is given by\[I=5\,\sin \,(100t-\pi /2)\] and the alternating potential is \[V=200\,\sin (100)t\] volt. The power consumed in the circuit is

    A) 20 W

    B) 40 W

    C) 1000 W

    D) zero

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  • question_answer76) The maximum wavelength of radiation that can produce photoelectric effect in a certain metal is 200 nm. The maximum kinetic energy acquired by electron due to radiation of wavelength 100 nm will be

    A) 12.4 eV

    B) 6.2 eV

    C) 100 eV

    D) 200 eV

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  • question_answer77) The material of wire of potentiometer is

    A) copper

    B) steel

    C) manganin

    D) aluminium

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  • question_answer78) A liquid cools down from \[70{}^\circ C\] to \[60{}^\circ C\] in 5 min. The time taken to cool it from \[60{}^\circ C\] to \[50{}^\circ C\] will be

    A) 5 min

    B) lesser than 5 min

    C) greater than 5 min

    D) lesser or greater than 5 min depending upon the density of the liquid

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  • question_answer79) There are 50 turns of a wire in every cm length of a long solenoid. If 4 A current is flowing in the solenoid, the approximate value of magnetic field along its axis at an internal point and at one end will be respectively

    A) \[\begin{align} & \text{12}\text{.6 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ & \text{6}\text{.3 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ \end{align}\]

    B) \[\begin{align} & \text{12}\text{.6 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ & 25.1\times {{10}^{-3}}Wb/{{m}^{2}} \\ \end{align}\]

    C) \[\begin{align} & \text{25}\text{.1 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ & \text{12}\text{.6 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ \end{align}\]

    D) \[\begin{align} & \text{25}\text{.1 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ & \text{12}\text{.6 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ \end{align}\]

    View Answer play_arrow
  • question_answer80) Monochromatic light of frequency \[5\times {{10}^{14}}Hz\] travelling in vacuum enters medium of refractive index 1.5. Its wavelength in the medium is

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

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

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

    D) \[5500\overset{\text{o}}{\mathop{\text{A}}}\,\]

    View Answer play_arrow
  • question_answer81) The vector form of Biot-Savarts law for a current carrying element is

    A) \[d\mathbf{\vec{B}}=\frac{{{\mu }_{0}}}{4\pi }\frac{Id\mathbf{\vec{1}}\,\sin \,\phi }{{{r}^{2}}}\]

    B) \[\mathbf{\vec{B}}=\frac{{{\mu }_{0}}}{4\pi }\frac{Idl\,\mathbf{\vec{r}}}{{{r}^{2}}}\]

    C) \[d\mathbf{\vec{B}}=\frac{{{\mu }_{0}}}{4\pi }\frac{Id\mathbf{\vec{1}}\times \,\mathbf{\vec{r}}}{{{r}^{3}}}\]

    D) \[d\,\mathbf{\vec{B}}=\frac{{{\mu }_{0}}}{4\pi }\frac{Id\mathbf{\vec{1}}\times \,\mathbf{\vec{r}}}{{{r}^{2}}}\]

    View Answer play_arrow
  • question_answer82) The potential energy of a body is given by \[U=A-B{{x}^{2}}\] (where x is the displacement). The magnitude of force acting on the particle is

    A) constant

    B) proportional to x

    C) proportional to \[{{x}^{2}}\]

    D) proportional to 1/x

    View Answer play_arrow
  • question_answer83) Spherical ball of radius R is falling in a viscous fluid of viscosity \[\eta \]with a velocity v. The retarding viscous force acting on the spherical ball is

    A) directly proportional to radius R but inversely proportional to velocity v

    B) directly proportional to both radius R and to velocity v

    C) inversely proportional to both radius R and velocity v

    D) inversely proportional to radius R but directly proportional to velocity v

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  • question_answer84) Even Carnot engine cannot give 100% efficiency because we cannot

    A) prevent radiation

    B) find ideal sources

    C) reach absolute zero temperature

    D) eliminate friction

    View Answer play_arrow
  • question_answer85) The work function of a substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately

    A) 540 nm

    B) 400 nm

    C) 310 nm

    D) 220 nm

    View Answer play_arrow
  • question_answer86) A particle of charge \[-16\,\times {{10}^{-18}}C\] moving with velocity \[10\,m{{s}^{-1}}\] along the \[x\]-axis enters a region where a magnetic field of induction B is along the y-axis and an electric field of magnitude \[\text{1}{{\text{0}}^{\text{4}}}\text{V/m}\] is along the negative z-axis. If the charged particle continues moving along the \[x\]-axis, the magnitude of B is

    A) \[{{10}^{16}}\,Wb/{{m}^{2}}\]

    B) \[{{10}^{5}}\,Wb/{{m}^{2}}\]

    C) \[{{10}^{3}}\,Wb/{{m}^{2}}\]

    D) \[{{10}^{-3}}\,Wb/{{m}^{2}}\]

    View Answer play_arrow
  • question_answer87) If \[{{N}_{0}}\] is the original mass of the substance of half-life period \[{{T}_{1/2}}\,=5\,yr,\] then the amount of substance left after 15 yr is

    A) \[{{N}_{0}}/8\]

    B) \[{{N}_{0}}/16\]

    C) \[{{N}_{0}}/2\]

    D) \[{{N}_{0}}/4\]

    View Answer play_arrow
  • question_answer88) A charged ball B hangs from a silk thread S, which makes an angle \[\theta \] with a large charged conducting sheet P, as shown in the figure. The surface charge density \[\sigma \] of the sheet is proportional to

    A) cot \[\theta \]

    B) cot \[\theta \]

    C) tan \[\theta \]

    D) sin \[\theta \]

    View Answer play_arrow
  • question_answer89) If\[{{\theta }_{i}}\]is the inversion temperature,\[{{\theta }_{n}}\]is the neutral temperature, \[{{\theta }_{c}}\]is the temperature of the cold junction for thermocouple, then

    A) \[{{\theta }_{i}}+{{\theta }_{c}}={{\theta }_{n}}\]

    B) \[{{\theta }_{i}}-{{\theta }_{c}}=2{{\theta }_{n}}\]

    C) \[\frac{{{\theta }_{i}}+{{\theta }_{c}}}{2}\theta n\]

    D) \[{{\theta }_{c}}-{{\theta }_{i}}=2{{\theta }_{n}}\]

    View Answer play_arrow
  • question_answer90) Speeds of two identical cars are u are 4u at a specific instant. The ratio of the respective distances in which the two cars are stopped in the same time

    A) 1 : 1

    B) 1 : 4

    C) 1 : 8

    D) 1 : 16

    View Answer play_arrow
  • question_answer91) Before using the tangent galvanometer, its coil is set up in

    A) magnetic meridian

    B) perpendicular to magnetic meridian

    C) at angle of \[45{}^\circ \] to magnetic meridian

    D) it does not require any setting

    View Answer play_arrow
  • question_answer92) Which of the following plots may represent reactance of a series LC combination?

    A) a

    B) b

    C) c

    D) d

    View Answer play_arrow
  • question_answer93) Three identical capacitors are connected together differently. For the same voltage to every combination the one that stores maximum energy is

    A) the three in series

    B) the three in parallel

    C) two in series and the third in parallel with it

    D) two in parallel and the third in series with it

    View Answer play_arrow
  • question_answer94) Each resistance shown in the circuit is of\[10\,\Omega \]. The equivalent resistance between the points X and Y is

    A) \[10\,\Omega \]

    B) \[20\,\Omega \]

    C) \[25\,\Omega \]

    D) \[30\,\Omega \]

    View Answer play_arrow
  • question_answer95) A L-R circuit consists of an inductance of 8 mH and a resistance of \[4\,\Omega \]. The time constant of the circuit is

    A) 2ms

    B) 12ms

    C) 32ms

    D) 500 s

    View Answer play_arrow
  • question_answer96) Three identical resistances A, B and C are connected as shown in the figure. The heat produced will be maximum in

    A) B

    B) same for A, Band C

    C) A

    D) B and C

    View Answer play_arrow
  • question_answer97) A kilowatt hour is equal to

    A) \[3.6\,\times {{10}^{6}}J\]

    B) \[3.6\times {{10}^{4}}J\]

    C) \[3.6\times {{10}^{3}}J\]

    D) \[6\times {{10}^{-4}}J\]

    View Answer play_arrow
  • question_answer98) Wire P and Q have the same resistance at ordinary (room) temperature. When heated, resistance of P increases and that of Q decreases. We conclude that

    A) P and Q are conductors of different materials.

    B) P is n-type semiconductor and Q is p-type semiconductor

    C) P is semiconductor and Q is conductor

    D) P is conductor and Q is semiconductor

    View Answer play_arrow
  • question_answer99) In the disintegration series \[_{92}^{238}U\xrightarrow{\alpha }X\xrightarrow{\text{-}}_{Z}^{A}Y\]the values of Z and A respectively will be

    A) 92, 236

    B) 88, 230

    C) 90, 234

    D) 91, 234

    View Answer play_arrow
  • question_answer100) The plane faces of two identical plano-convex lenses, each having focal length of 40 cm, are placed against each other to form a common convex lens. The distance from this lens at which an object must be placed to obtain a real inverted image with magnification equal to unity is

    A) 80 cm

    B) 40 cm

    C) 20 cm

    D) 160 cm

    View Answer play_arrow
  • question_answer101) If an organic compound has\[C=40%\], \[H=13.3%\],\[N=46.67%\] , then the empirical formula for this compound is

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

    B) \[{{C}_{2}}{{H}_{8}}{{N}_{2}}\]

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

    D) None of these

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  • question_answer102) \[TEL\]is

    A) petrol fuel

    B) antiknocking compound

    C) gasoline

    D) insecticide

    View Answer play_arrow
  • question_answer103) \[DDT\] is related to

    A) insecticide

    B) fungicide

    C) chlorination

    D) florination

    View Answer play_arrow
  • question_answer104) Coordination number 8 : 8 is of

    A) \[CsCl\]

    B) \[KCl\]

    C) \[NaCl\]

    D) \[ZnS\]

    View Answer play_arrow
  • question_answer105) Which of the following inert gas is soluble in water?

    A) \[He\]

    B) \[Ne\]

    C) \[Ar\]

    D) \[Xe\]

    View Answer play_arrow
  • question_answer106) Number of peptide bonds in dipeptide is

    A) \[2\]

    B) \[1\]

    C) \[3\]

    D) \[4\]

    View Answer play_arrow
  • question_answer107) Cupellation method is used for the extraction of

    A) \[Cu\]

    B) \[Ag\]

    C) \[Na\]

    D) \[Al\]

    View Answer play_arrow
  • question_answer108) Blood sugar is

    A) fructose

    B) maltose

    C) haemoglobin

    D) glucose

    View Answer play_arrow
  • question_answer109) Lactose sugar is formed from

    A) \[d-\]galactose

    B) \[d-\]glucose

    C) \[d-\]galactose and d-glucose

    D) \[d-\]glucose and d-fructose

    View Answer play_arrow
  • question_answer110) The values for all the quantum numbers for 15th electron of chlorine are

    A) \[n=3,\,\,l=1,\,\,m=0,\,\,s=-1/2\]

    B) \[n=4,\,\,l=2,\,\,m=0,\,\,s=+1/2\]

    C) \[n=3,\,\,l=1,\,\,m=+1,\,\,s=+1/2\]

    D) \[n=2,\,\,l=0,\,\,m=0,\,\,s=+1/2\]

    View Answer play_arrow
  • question_answer111) The IUPAC name of the compound is \[C{{H}_{3}}-{{[C{{H}_{2}}]}_{5}}-\underset{\begin{align} & | \\ & C{{H}_{2}} \\ & | \\ & ^{\beta }CHC{{H}_{3}} \\ & | \\ & C{{H}_{2}} \\ & | \\ & C{{H}_{3}} \\ \end{align}}{\mathop{C}}\,H-C{{H}_{2}}-\underset{\begin{align} & | \\ & ^{\alpha }CHC{{H}_{3}} \\ & | \\ & C{{H}_{2}} \\ & | \\ & {{C}_{2}}{{H}_{5}} \\ \end{align}}{\mathop{C}}\,H-{{[C{{H}_{2}}]}_{_{3}}}-C{{H}_{3}}\]

    A) 7[\[\beta \]methyl butyl], 9 butyl tridecane

    B) 3[\[\beta \]ethyl butyl], 9 ethyl tridecane

    C) 2[\[\beta \]ethyl ethenyl], 8 propyl decane

    D) None of the above

    View Answer play_arrow
  • question_answer112) The correct order of stability of following carbocation is (I) (II) (III) (IV)

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

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

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

    D) None of the above

    View Answer play_arrow
  • question_answer113) Outermost configuration for\[Z=25\], is

    A) \[4{{s}^{2}},\,\,3{{d}^{5}}\]

    B) \[5{{s}^{2}},\,\,4{{d}^{5}}\]

    C) \[4{{s}^{2}},\,\,3{{d}^{3}}\]

    D) \[4{{s}^{2}},\,\,3{{d}^{1}}\]

    View Answer play_arrow
  • question_answer114) The colour of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] in acidic medium is

    A) red

    B) green

    C) yellow

    D) pink

    View Answer play_arrow
  • question_answer115) Baeyers reagent decolorizes which of the following?

    A) Alkane

    B) Alkene

    C) Alkene and alkyne both

    D) None of the above

    View Answer play_arrow
  • question_answer116) When \[Mn{{O}_{4}}\] is fused with\[KOH\], a colored compound is formed. The product and its colour is

    A) \[KMn{{O}_{4}}\], purple green

    B) \[KMn{{O}_{4}}\], purple

    C) \[M{{n}_{2}}{{O}_{3}}\], brown

    D) \[M{{n}_{2}}{{O}_{4}}\], black

    View Answer play_arrow
  • question_answer117) The type of hybridization present in each carbon of benzene is

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

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

    C) \[sp\]

    D) None of these

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  • question_answer118) Total number of isomers of \[{{C}_{4}}{{H}_{10}}O\] is

    A) 7

    B) 4

    C) 3

    D) 8

    View Answer play_arrow
  • question_answer119) Vitamin \[{{B}_{12}}\] contains

    A) \[Co\]

    B) \[Fe\]

    C) \[Zn\]

    D) \[Ca\]

    View Answer play_arrow
  • question_answer120) Night blindness is caused due to the deficiency of

    A) \[{{B}_{12}}\]

    B) \[A\]

    C) \[C\]

    D) \[D\]

    View Answer play_arrow
  • question_answer121) RNA does not contain

    A) thymine

    B) adenine

    C) guanine

    D) uracil

    View Answer play_arrow
  • question_answer122) Reaction of dry \[HCl\] with acetone gives

    A) aldol

    B) chloritone

    C) isopropyl alcohol

    D) None of these

    View Answer play_arrow
  • question_answer123) Which of the following is incorrect for radial distribution curve?

    A) \[n\] \[l\] Node \[2\] \[0\] \[1\]

    B) \[3\] \[0\] \[2\]

    C) \[2\] \[1\] \[0\]

    D) \[3\] \[2\] \[1\]

    View Answer play_arrow
  • question_answer124) If \[{{H}^{+}}\] concentration of fruit juice is\[3.3\times {{10}^{-2}}\], then its \[pH\] will be

    A) \[4.8\,\,basic\]

    B) \[4.8\,\,neutral\]

    C) \[4.8\,\,acidic\]

    D) \[1.6\,\,acidic\]

    View Answer play_arrow
  • question_answer125) \[{{C}_{2}}{{H}_{5}}OH\xrightarrow[NaOH]{{{I}_{2}}}A\xrightarrow[KOH]{Aqueous}B\] In equation given above \[A\] and \[B\] are respectively

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

    B) \[CH{{I}_{3}}\]and\[C{{H}_{3}}COOK\]

    C) \[C{{H}_{4}}\]and\[HCOOK\]

    D) \[CH{{I}_{3}}\]and\[{{H}_{2}}\]

    View Answer play_arrow
  • question_answer126) Formula of washing soda is

    A) \[N{{a}_{2}}C{{O}_{3}}\cdot 10{{H}_{2}}O\]

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

    C) \[N{{a}_{2}}S{{O}_{4}}\cdot 10{{H}_{2}}O\]

    D) None of the above

    View Answer play_arrow
  • question_answer127) \[AgN{{O}_{3}}\] gives red colour with

    A) \[NaCl\]

    B) \[NaBr\]

    C) \[NaI\]

    D) \[{{K}_{2}}Cr{{O}_{4}}\]

    View Answer play_arrow
  • question_answer128) If the value of bond order is zero, then

    A) molecule will be stable

    B) molecule will be unstable

    C) molecule will be in ionic state

    D) None of the above

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  • question_answer129) Which is responsible for the diagonal relation of lithium with magnesium?

    A) Less ionic radii

    B) High polarizing power

    C) Approximately equal electronegativity and affinity

    D) All of the above

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  • question_answer130) Trioxane has the formula, it is prepared from

    A) formaldehyde

    B) methanol

    C) dichloromethane

    D) vinyl alcohol

    View Answer play_arrow
  • question_answer131) Natural rubber is

    A) butadiene

    B) isoprene

    C) neoprene

    D) None of these

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  • question_answer132) Monomer of polythene is

    A) ethylene

    B) propylene

    C) vinyl chloride

    D) None of these

    View Answer play_arrow
  • question_answer133) Bond order of \[{{N}_{2}}\] molecule is

    A) \[3\]

    B) \[2\]

    C) \[1\]

    D) \[0\]

    View Answer play_arrow
  • question_answer134) Which of the following is a proper match?

    \[\frac{{{\mathbf{r}}^{\mathbf{+}}}}{{{\mathbf{r}}^{\mathbf{-}}}}\] Shape
    (A)\[0.115-0.225\] (i) Triangular
    (B)\[0.225-0.414\] (ii) Tetrahedral
    (C)\[0.414-0.732\] (iii) Cubic
    (D)\[0.732-1\] (iv) Octahedral

    A) \[A-i,\,\,B-ii,\,\,C-iv,\,\,D-iii\]

    B) \[A-iii,\,\,B-ii,\,\,C-iv,\,\,D-i\]

    C) \[A-i,\,\,B-iii,\,\,C-i,\,\,D-iv\]

    D) \[A-ii,\,\,B-iv,\,\,C-i,\,\,D-iii\]

    View Answer play_arrow
  • question_answer135) The correct order of acidity of following acids is

    A) \[>-Cl-C{{H}_{2}}COOH>HCOOH>C{{H}_{3}}COOH\]

    B) \[F-C{{H}_{2}}COOH>Cl-C{{H}_{2}}COOH\]

    C) \[HCOOH>C{{H}_{3}}COOH>Cl-C{{H}_{2}}COOH\]

    D) None of the above

    View Answer play_arrow
  • question_answer136) \[C{{O}_{2}}\] gas obtained by the combustion of \[12\,\,mL\] butane gas is

    A) \[3\,\,mL\]

    B) \[12\,\,mL\]

    C) \[24\,\,mL\]

    D) \[48\,\,mL\]

    View Answer play_arrow
  • question_answer137) Calomel is

    A) \[H{{g}_{2}}C{{l}_{2}}\]

    B) \[Hg+H{{g}_{2}}C{{l}_{2}}\]



    View Answer play_arrow
  • question_answer138) In an adiabatic process which of the following is true?

    A) \[q=+W\]

    B) \[q=0\]

    C) \[\Delta E=q\]

    D) \[p\Delta V=0\]

    View Answer play_arrow
  • question_answer139) The number of paired electrons in \[Xe\] atom of \[Xe{{F}_{2}}\] is

    A) \[3\]

    B) \[5\]

    C) \[4\]

    D) \[2\]

    View Answer play_arrow
  • question_answer140) Hydrolysis of \[Xe{{F}_{6}}\] gives

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

    B) \[Xe{{O}_{6}}\]

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

    D) \[Xe{{O}_{4}}\]

    View Answer play_arrow
  • question_answer141) Zwitter ion is

    A) dipolar ion

    B) ion formed from amino acid

    C) internal salt

    D) All of the above

    View Answer play_arrow
  • question_answer142) \[IUPAC\]name of\[[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]is

    A) diamine dichloro platinum (II)

    B) amine, chloro platinum (III)

    C) chloro diamine platinum (II)

    D) None of the above

    View Answer play_arrow
  • question_answer143) Nylon obtained by the condensation of adipic acid with hexamethylene diamine

    A) nylon 6, 6

    B) nylon 7, 6

    C) nylon 6, 5

    D) nylon 9, 7

    View Answer play_arrow
  • question_answer144) Equation\[\log \frac{{{K}_{2}}}{{{K}_{1}}}=\frac{\Delta H}{2.303R}\left[ \frac{{{T}_{2}}-{{T}_{1}}}{{{T}_{1}}\cdot {{T}_{2}}} \right],\,\,n\]

    A) van der Waals equation

    B) Kirchhoffs equation

    C) Gas equation

    D) vant Hoff equation

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  • question_answer145) Which of the following is a colligative property?

    A) Surface tension

    B) Viscosity

    C) Osmotic pressure

    D) Vapour pressure

    View Answer play_arrow
  • question_answer146) Number of \[\alpha \] and \[\beta \] emitted in the reaction \[_{92}{{U}^{238}}{{\xrightarrow{{}}}_{82}}P{{b}^{206}}\]are

    A) \[6\alpha \]and\[8\beta \]

    B) \[8\alpha \]and\[6\beta \]

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

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

    View Answer play_arrow
  • question_answer147) A chemical reaction is catalyzed by \[X\] therefore,\[X\]

    A) increases the activation energy

    B) does not affect the equilibrium constant of the reaction

    C) decreases the enthalpy of the reaction

    D) decreases the velocity constant of the reaction

    View Answer play_arrow
  • question_answer148) The half-life of a radioactive isotope is\[3\,\,h\]. If the initial mass of the isotope were\[256\,\,g\], the mass of it remaining undecayed after \[18\,\,h\] would be

    A) \[8.0\,\,g\]

    B) \[4.0\,\,g\]

    C) \[12.0\,\,g\]

    D) \[16.0\,\,g\]

    View Answer play_arrow
  • question_answer149) According to \[MOT\] which of the following is correct for potassium hexa cyano ferrate (III)?

    A) It is a octahedral complex

    B) \[{{t}_{2g}}\] orbital contains the e of metal

    C) For iron, overlapping between empty orbitals and ligand orbitals takes place

    D) All of the above

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  • question_answer150) Radioactive hydrogen is

    A) tritium

    B) deuterium

    C) ortho hydrogen

    D) para hydrogen

    View Answer play_arrow
  • question_answer151) Percentage of oxygen in phenol is

    A) \[17.02\]

    B) \[15.2\]

    C) \[16\]

    D) \[15\]

    View Answer play_arrow
  • question_answer152) Which of the following differs in\[EAN\]?

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

    B) \[{{K}_{4}}[Fe{{(CN)}_{6}}]\]

    C) \[{{K}_{2}}[ZnC{{l}_{4}}]\]

    D) \[{{K}_{2}}[Hg{{I}_{4}}]\]

    View Answer play_arrow
  • question_answer153) Which of the following complex neutralizes three molecules of\[AgN{{O}_{3}}\]?

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

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

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

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

    View Answer play_arrow
  • question_answer154) \[Zn|\underset{C=1}{\mathop{Z{{n}^{2+}}}}\,||\underset{C=1}{\mathop{C{{u}^{2+}}}}\,|Cu\] If the standard reduction potential of zinc electrode and copper half-cell is \[-0.76\,\,V\] and \[0.34\,\,V\] respectively then the emf will be

    A) \[1.1\,\,V\]

    B) \[1.4\,\,V\]

    C) \[1.34\,\,V\]

    D) None of these

    View Answer play_arrow
  • question_answer155) Which of the following does not show optical isomerization?

    A) \[[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]

    B) \[{{[Co{{(ox)}_{3}}]}^{3-}}\]

    C) \[{{[Co{{(en)}_{3}}]}^{3+}}\]

    D) \[{{[Cr{{(diph)}_{3}}]}^{3+}}\]

    View Answer play_arrow
  • question_answer156) Solubility product of pure \[PbC{{l}_{2}}\] will be

    A) \[{{K}_{sp}}={{S}^{2}}\]

    B) \[{{K}_{sp}}=4{{S}^{3}}\]

    C) \[{{K}_{sp}}=108\,\,{{S}^{5}}\]

    D) \[{{K}_{sp}}=S\]

    View Answer play_arrow
  • question_answer157) The expression for velocity constant for the second order reaction is

    A) \[k=\frac{2.303}{t}{{\log }_{10}}\frac{a}{a-x}\]

    B) \[k=\frac{1}{t}\frac{x}{a[a-x]}\]

    C) \[k=\frac{1}{t}\frac{{{x}^{2}}}{{{a}^{2}}{{[a-x]}^{2}}}\]

    D) None of the above

    View Answer play_arrow
  • question_answer158) The unit of rate constant for second order reaction is

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

    B) \[mol/{{L}^{-1}}\]

    C) \[L\,\,mo{{l}^{-1}}{{s}^{-1}}\]

    D) \[{{L}^{2}}mo{{l}^{-2}}s\]

    View Answer play_arrow
  • question_answer159) Which of the following, on heating with ammonia gives urotropin?

    A) Formaldehyde

    B) Acetaldehyde

    C) Acetone

    D) Benzaldehyde

    View Answer play_arrow
  • question_answer160) Which of the following statement is correct?

    A) Basic nature increases on increasing pH

    B) Basic nature decreases on increasing pH

    C) Acidic nature increases on increasing pH

    D) None of the above

    View Answer play_arrow
  • question_answer161) For the redox reaction \[Zn(s)+C{{u}^{2+}}(0.1\,\,M)\xrightarrow{{}}Z{{n}^{2+}}(1M)+Cu(s)\] taking place in a cell, \[E_{cell}^{\text{o}}\] is\[1.10\,\,V\]. \[{{E}_{cell}}\] for the cell will be\[\left( 2.3303\frac{RT}{F}=0.0591 \right)\]

    A) \[2.14\,\,V\]

    B) \[1.80\,\,V\]

    C) \[0.82\,\,V\]

    D) \[1.07\,\,V\]

    View Answer play_arrow
  • question_answer162) \[{{C}_{6}}{{H}_{6}}+C{{l}_{2}}\xrightarrow{Sunlight}\]product

    A) \[BHC\]

    B) chloro benzene

    C) dichloro benzene

    D) None of the above

    View Answer play_arrow
  • question_answer163) The required condition for an ideal solution is

    A) \[\Delta {{H}_{mix}}=0\]

    B) \[\Delta {{V}_{mix}}\ne 0\]

    C) \[{{p}_{A}}\ne p_{A}^{o}{{X}_{A}}\]

    D) \[\Delta {{H}_{mix}}>1\]

    View Answer play_arrow
  • question_answer164) Interionic distance for \[CsCl\] crystal is

    A) \[a\]

    B) \[a/2\]

    C) \[\frac{\sqrt{3}}{4}a\]

    D) \[\frac{2a}{\sqrt{3}}\]

    View Answer play_arrow
  • question_answer165) How many space lattices are obtained from the different crystal systems?

    A) 7

    B) 14

    C) 32

    D) 230

    View Answer play_arrow
  • question_answer166) Which of the following occurs at anode?

    A) Reduction

    B) Oxidation

    C) Both (a) and (b)

    D) None of these

    View Answer play_arrow
  • question_answer167) Parkes process is used for the extraction of

    A) iron

    B) sodium

    C) silver

    D) zinc

    View Answer play_arrow
  • question_answer168) The common method of extraction of metals from oxide ores is

    A) reduction with carbon

    B) reduction with hydrogen

    C) reduction with aluminium

    D) electrolytic method

    View Answer play_arrow
  • question_answer169) The transition metals mostly are

    A) diamagnetic

    B) paramagnetic

    C) neither diamagnetic nor paramagnetic

    D) both diamagnetic and paramagnetic

    View Answer play_arrow
  • question_answer170) Which of the following is an electron deficient compound?

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

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

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

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

    View Answer play_arrow
  • question_answer171) Aniline reacts with chloroform in the presence of \[KOH\] to give

    A) phenol

    B) chlorobenzene

    C) phenyl cyanide

    D) phenyl isocyanide

    View Answer play_arrow
  • question_answer172) Which one of the following is conjugate acid of water in the reaction? \[{{H}_{2}}S{{O}_{4}}+{{H}_{2}}O{{H}_{3}}{{O}^{+}}+HSO_{4}^{-}\]

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

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

    C) \[SO_{4}^{2-}\]

    D) \[HSO_{4}^{-}\]

    View Answer play_arrow
  • question_answer173) The product of \[{{H}^{+}}\] and \[O{{H}^{-}}\] of water will be

    A) \[{{K}_{w}}={{10}^{-12}}\]

    B) \[{{K}_{w}}={{10}^{-14}}\]

    C) \[{{K}_{w}}={{10}^{-11}}\]

    D) \[{{K}_{w}}={{10}^{-10}}\]

    View Answer play_arrow
  • question_answer174) When methyl cyanide is hydrolyzed in presence of alkali, the product is

    A) acetamide

    B) methane

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

    D) acetic acid

    View Answer play_arrow
  • question_answer175) For\[NaCl\], the\[{{K}_{sp}}=36\,\,mo{{l}^{2}}{{L}^{-2}}\], the molar concentration of it will be

    A) \[\frac{1}{36}M\]

    B) \[\frac{1}{16}M\]

    C) \[36\,\,M\]

    D) \[6\,\,M\]

    View Answer play_arrow
  • question_answer176) Four solutions \[A,\,\,B,\,\,C,\,\,D\] has glucose\[0.5\,\,M\], \[NaCl\,\,0.1\,\,M\], \[BaC{{l}_{2}}\,\,0.5\,\,M\] and\[MgC{{l}_{2}}\,\,0.1\,\,M\], then which of the following will have highest osmotic pressure?

    A) Glucose

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

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

    D) \[NaCl\]

    View Answer play_arrow
  • question_answer177) The highest boiling point is of

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

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

    C) \[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\]

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

    View Answer play_arrow
  • question_answer178) For an ionic crystal of the general formula \[M\] and coordination number is\[6\], the value of radius ratio will be

    A) greater than 0.73

    B) in between 0.73 and 0.41

    C) in between 0.41 and 0.22

    D) less than 0.22

    View Answer play_arrow
  • question_answer179) Which of the following can be used to convert \[_{7}^{14}N\]into\[_{8}^{17}O\]?

    A) Deutron

    B) Proton

    C) \[\alpha \]-particle

    D) Neutron

    View Answer play_arrow
  • question_answer180) \[{{N}_{2}}{{O}_{4}}2N{{O}_{2}}-Q\] The unit of \[{{K}_{p}}\] for the given reaction is

    A) atmosphere

    B) atomsphere2

    C) atmosphere-1

    D) None of these

    View Answer play_arrow
  • question_answer181) Number of ions for the complex\[[Co{{(N{{H}_{3}})}_{4}}Cl]C{{l}_{2}}\] shown by the conductivity measurement, is

    A) 2

    B) 4

    C) 3

    D) 1

    View Answer play_arrow
  • question_answer182) Rusting on iron needs

    A) dry air

    B) air and water

    C) distilled water and carbon dioxide

    D) oxygen and carbon dioxide

    View Answer play_arrow
  • question_answer183) First ionization potential is highest for

    A) \[Na\]

    B) \[Mg\]

    C) \[Al\]

    D) None of these

    View Answer play_arrow
  • question_answer184) Which compound is not a lipid?

    A) Lecithin

    B) Lysine

    C) Cerebroside

    D) Cephalin

    View Answer play_arrow
  • question_answer185) Which one of the following notations shows product incorrectly?

    A) \[_{96}^{242}Cm(\alpha ,\,\,2m)_{97}^{243}Bk\]

    B) \[_{5}^{10}B(\alpha ,\,\,n)_{7}^{13}N\]

    C) \[_{7}^{14}N(n,\,\,p)_{6}^{14}C\]

    D) \[_{14}^{28}Si(d,\,\,n)_{15}^{29}P\]

    View Answer play_arrow
  • question_answer186) In the equilibrium reaction\[2HI(g){{H}_{2}}+{{I}_{3}}\]which of the following expressions is true?

    A) \[{{K}_{p}}={{K}_{c}}\]

    B) \[{{K}_{c}}=2{{K}_{p}}\]

    C) \[{{K}_{p}}>{{K}_{c}}\]

    D) \[{{K}_{c}}={{K}_{p}}{{(RT)}^{2}}\]

    View Answer play_arrow
  • question_answer187) For a reaction of the type \[A+B\to \] products, it is observed that doubling the concentration of \[A\] causes the reaction rate to be four times as great, but doubling the amount of \[B\] does not affect the rate. The rate equation is

    A) \[Rate=k[A][B]\]

    B) \[Rate=k{{[A]}^{2}}\]

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

    D) \[Rate=k{{[A]}^{2}}[B]\]

    View Answer play_arrow
  • question_answer188) In the following, the element with the highest electropositivity is

    A) copper

    B) cesium

    C) barium

    D) chromium

    View Answer play_arrow
  • question_answer189) The reaction \[C{{H}_{2}}=C{{H}_{2}}+{{H}_{2}}\xrightarrow[{{250}^{o}}-{{300}^{o}}C]{Ni}C{{H}_{3}}-C{{H}_{3}}\] is called

    A) Wurtz reaction

    B) Kolbes reaction

    C) Sabatier-Senderens reaction

    D) Carbylamine reaction

    View Answer play_arrow
  • question_answer190) Unit of first order rate constant is

    A) \[mol\,\,L\,\,s\]

    B) \[mo{{l}^{-1}}{{L}^{-1}}{{s}^{-1}}\]

    C) \[mol\,\,{{L}^{-1}}{{s}^{-1}}\]

    D) \[{{s}^{-1}},\,\,{{\min }^{-1}}etc\].

    View Answer play_arrow
  • question_answer191) Which of the following describes the shape of orbital?

    A) Principal quantum number

    B) Azimuthal quantum number

    C) Magnetic quantum number

    D) Spin quantum number

    View Answer play_arrow
  • question_answer192) The formula of a phosphate of a metal\[M\], is\[MP{{O}_{4}}\]. The formula of its nitrate will be

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

    B) \[M{{(N{{O}_{3}})}_{2}}\]

    C) \[M{{(N{{O}_{3}})}_{3}}\]

    D) \[{{M}_{2}}{{(N{{O}_{3}})}_{2}}\]

    View Answer play_arrow
  • question_answer193) The \[d-\]block element consists mostly of

    A) monovalent metals

    B) all non-metals

    C) elements which generally form stoichiometric metal oxide

    D) many metals with catalytic properties

    View Answer play_arrow
  • question_answer194) A mixture containing \[C{{u}^{2+}}\] and \[N{{i}^{2+}}\] can be separated for identification by

    A) passing \[{{H}_{2}}S\] in acid medium

    B) passing \[{{H}_{2}}S\] in alkaline medium

    C) passing \[{{H}_{2}}S\] in neutral medium

    D) passing \[{{H}_{2}}S\] in dry mixture

    View Answer play_arrow
  • question_answer195) Strongest Bronsted base among the following anions is

    A) \[ClO\]

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

    C) \[ClO_{3}^{-}\]

    D) \[ClO_{4}^{-}\]

    View Answer play_arrow
  • question_answer196) Which one of the following is a good conductor of electricity?

    A) Diamond

    B) Graphite

    C) Silicon

    D) Amorphous carbon

    View Answer play_arrow
  • question_answer197) Which one of the following is an example of non-typical transition elements?

    A) \[Li,\,\,K,\,\,Na\]

    B) \[Be,\,\,Al,\,\,Pb\]

    C) \[Zn,\,\,Cd,\,\,Hg\]

    D) \[Ba,\,\,Ca,\,\,Sr\]

    View Answer play_arrow
  • question_answer198) Which of the following has zero dipole moment?

    A) \[ClF\]

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

    C) \[Si{{F}_{4}}\]

    D) \[CFC{{l}_{3}}\]

    View Answer play_arrow
  • question_answer199) In galvanic cell, the salt bridge is used to

    A) complete the circuit

    B) reduce the electric resistance in the cell

    C) separate cathode from anode

    D) carry salts for the chemical reaction

    View Answer play_arrow
  • question_answer200) Reduction of methyl isocyanide gives

    A) ethylamine

    B) methylamine

    C) dimethylamine

    D) trimethylamine

    View Answer play_arrow
  • question_answer201) Perianth is represented by

    A) glumes

    B) lemma

    C) lodicules

    D) palea

    View Answer play_arrow
  • question_answer202) Table sugar is consist of

    A) lactose

    B) sucrose

    C) maltose

    D) glucose

    View Answer play_arrow
  • question_answer203) The terminator gene technology causes

    A) failure of seed setting after one generation

    B) breakage of seed dormancy

    C) early flowering in plants

    D) None of the above

    View Answer play_arrow
  • question_answer204) The term totipotency refers to

    A) the capability of organism to regenerate its lost parts

    B) capability of somatic cells to produce complete organism

    C) the introduction of foreign gene in a cells DNA

    D) the technique of growing immature embryos

    View Answer play_arrow
  • question_answer205) Work of Beadle and Tatum on Neurospora rassa proved that

    A) Replication of DNA is semi-conservative

    B) viruses have genetic material

    C) every gene is responsible for specific enzymes

    D) plant cells are to tipotent

    View Answer play_arrow
  • question_answer206) Polyploidy means occurrence of

    A) haploid sets of chromosomes

    B) diploid sets of chromosomes

    C) more than diploid sets of chromosomes

    D) All of the above

    View Answer play_arrow
  • question_answer207) The deteriorative processes in plants, that naturally terminate their functional life, are collectively called

    A) wilting

    B) abscission

    C) plasmolysis

    D) senescence

    View Answer play_arrow
  • question_answer208) Which pigment involves in photoperiodic change in plants?

    A) Phytochrome

    B) Cytochrome

    C) Chlorophyll

    D) Anthocyanin

    View Answer play_arrow
  • question_answer209) Linnaen system of plant classification is based on

    A) morphological and anatomical characters

    B) evolutionary trends

    C) floral characters

    D) None of the above

    View Answer play_arrow
  • question_answer210) Succession on secondary base area is

    A) primosere

    B) subsere

    C) xerosere

    D) None of these

    View Answer play_arrow
  • question_answer211) An unrestricted reproductive capacity is called

    A) birth rate

    B) biotic potential

    C) carrying capacity

    D) fertility

    View Answer play_arrow
  • question_answer212) Ubisch bodies are secreted by

    A) tapetum

    B) exine

    C) microspore mother cells

    D) endothecium

    View Answer play_arrow
  • question_answer213) Alginic acid is found in the cell wall of

    A) Gigartina

    B) Laminaria

    C) Gelidium

    D) Scytonema

    View Answer play_arrow
  • question_answer214) Lady finger (bhindi) belongs to

    A) Malvaceae

    B) Cruciferae

    C) Solanaceae

    D) Liliaceae

    View Answer play_arrow
  • question_answer215) P-proteins are associated with

    A) sieve tube elements

    B) xylem parenchyma

    C) trichomes

    D) tracheids and vessels

    View Answer play_arrow
  • question_answer216) Potato is a modification of

    A) stem

    B) rhizome

    C) root

    D) leaf

    View Answer play_arrow
  • question_answer217) Antherozoids of Dryopteris are

    A) multiciliated and coiled

    B) multiciliated and sickle-shaped

    C) biciliated and coiled

    D) biciliated and sickle-shaped

    View Answer play_arrow
  • question_answer218) Ginger multiplies vegetatively by

    A) bud

    B) tuber

    C) stem

    D) rhizome

    View Answer play_arrow
  • question_answer219) In Cycas stem, open vascular bundle is characterized by

    A) phloem being sandwitched between xylem

    B) cambium present in between xylem and phloem

    C) xylem being sandwitched between phloem

    D) xylem and phloem occurring on different radii

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  • question_answer220) From which part of coconut coir is obtained?

    A) Pericarp

    B) Mesocarp

    C) Epicarp

    D) Endocarp

    View Answer play_arrow
  • question_answer221) Both heterospory and circinate plyxis occur in

    A) Dryopteris

    B) Finns

    C) Cycas

    D) Funaria

    View Answer play_arrow
  • question_answer222) In Funaria, the stomata are found on

    A) foot

    B) seta

    C) capsule

    D) All of these

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  • question_answer223) Tracheophyta consists of

    A) bryophytes only

    B) pteridophytes only

    C) gymnosperms and angiosperms

    D) Both (b) and (c)

    View Answer play_arrow
  • question_answer224) Green-house effect is mainly caused by

    A) CFCs

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

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

    D) \[CO\]

    View Answer play_arrow
  • question_answer225) Nucellar polyembryony occurs in

    A) Corchorus

    B) Cirrus

    C) Carthamus

    D) Zea mays

    View Answer play_arrow
  • question_answer226) Male gametophyte of angiosperms is reduced o

    A) one cell

    B) two cells

    C) three cells

    D) four cells

    View Answer play_arrow
  • question_answer227) In \[{{C}_{3}}\] plants, the first stable product of photosynthesis during dark reaction is

    A) PGAL

    B) RuBP

    C) PGA

    D) OAA

    View Answer play_arrow
  • question_answer228) During the formation of embryo sac, the functional megaspore undergoes

    A) two mitotic divisions

    B) two meiotic divisions

    C) three meiotic divisions

    D) three mitotic divisions

    View Answer play_arrow
  • question_answer229) The first \[C{{O}_{4}}\] acceptor in \[{{C}_{4}}\] cycle is

    A) RuBP

    B) PEP

    C) PGA

    D) OAA

    View Answer play_arrow
  • question_answer230) The water available to plants for absorption is

    A) gravitational water

    B) hygroscopic water

    C) capillary water

    D) chemically bound water

    View Answer play_arrow
  • question_answer231) Cell wall of fungi is made up of

    A) fungal cellulose

    B) hemicellulose

    C) fungal chitin

    D) Both (a) and (c)

    View Answer play_arrow
  • question_answer232) The plant ash indicates

    A) organic matter of plant

    B) mineral salts absorbed by plants

    C) both mineral salts and organic matter

    D) silica absorbed by plants

    View Answer play_arrow
  • question_answer233) During cell cycle, RNA and non-histone proteins are synthesized in

    A) S-phase

    B) \[{{G}_{\text{o}}}\]-phase

    C) \[{{G}_{2}}\]-phase

    D) M-phase

    View Answer play_arrow
  • question_answer234) Which one of the following is the terminal electron acceptor?

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

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

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

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

    View Answer play_arrow
  • question_answer235) Bract is a modified

    A) petal

    B) sepal

    C) leaf

    D) involucres

    View Answer play_arrow
  • question_answer236) Hormone replacing the requirement of vernalization is

    A) ethylene

    B) auxin

    C) gibberellins

    D) cytokinin

    View Answer play_arrow
  • question_answer237) Thigmotropism is best seen in

    A) tendrils

    B) leaf apex

    C) root apex

    D) stem apex

    View Answer play_arrow
  • question_answer238) Transpiration is measured by

    A) potometre

    B) porometre

    C) auxanometre

    D) respirometre

    View Answer play_arrow
  • question_answer239) The function of polymerase chain reaction is

    A) transduction

    B) DNA amplification

    C) translation

    D) None of these

    View Answer play_arrow
  • question_answer240) Mutation is more common when it is present in

    A) recessive condition

    B) dominant condition

    C) constant in population

    D) None of the above

    View Answer play_arrow
  • question_answer241) The most common type of ovule in angiosperms is

    A) amphitropous

    B) atropous

    C) anatropous

    D) circinotropous

    View Answer play_arrow
  • question_answer242) When two hybrids rrTt and Rrtt are crossed, the phenotype ratio of offspring would be

    A) 3 : 1

    B) 9 : 3 : 3 : 1

    C) 1 : 1

    D) 1 : 1 : 1 : 1

    View Answer play_arrow
  • question_answer243) One of the most resistant known biological material is

    A) lignin

    B) hemicellulose

    C) sporopollenin

    D) lignocelluloses

    View Answer play_arrow
  • question_answer244) Energy enters the ecosystem through

    A) herbivore

    B) carnivore

    C) producer

    D) decomposer

    View Answer play_arrow
  • question_answer245) In soil profile, humus is present in

    A) horizon-O

    B) horizon-A

    C) horizon-B

    D) horizon-C

    View Answer play_arrow
  • question_answer246) The smallest angiospermic flower is

    A) Wolffia

    B) Ranunculus

    C) Rafflesia

    D) SteHana

    View Answer play_arrow
  • question_answer247) The pyramid of energy is always

    A) opaque

    B) horizontal

    C) upright

    D) inverted

    View Answer play_arrow
  • question_answer248) The transition zone between the two vegetations of ecosystem is called

    A) ecotone

    B) ecocline

    C) ecosystem

    D) ecesis

    View Answer play_arrow
  • question_answer249) Protein in silk thread is

    A) fibroin

    B) keratin

    C) albumin

    D) globulin

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  • question_answer250) Thermoregulatory centre of human body is associated with

    A) cerebrum

    B) cerebellum

    C) hypothalamus

    D) medulla oblongata

    View Answer play_arrow
  • question_answer251) Body cavity of adult Ascans is

    A) haemocoel

    B) amphicoel

    C) pseudocoel

    D) schizocoel

    View Answer play_arrow
  • question_answer252) Collar cells are characteristic of

    A) earthworm

    B) roundworms

    C) coelenterata

    D) sponges

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  • question_answer253) In honey bee, the drones are

    A) sterile male

    B) fertile male

    C) fertile female

    D) sterile female

    View Answer play_arrow
  • question_answer254) Crypts of Leiberkuhn are involved in

    A) secretion of succus entericus

    B) secretion of rennin

    C) secretion of ptyalin

    D) digestion of food

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  • question_answer255) Plasmids are found in

    A) virus

    B) bacteria

    C) fungi

    D) viroid

    View Answer play_arrow
  • question_answer256) Oxygen dissociation curve is

    A) sigmoid

    B) parabolic

    C) hyperbolic

    D) straight line

    View Answer play_arrow
  • question_answer257) Blood leaving the liver and going towards heart is rich in

    A) bile

    B) urea

    C) ammonia

    D) oxygen

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  • question_answer258) Membrane that covers the vacuole in a plant cell is called

    A) tonoplast

    B) tonoplasm

    C) jacket

    D) cell membrane

    View Answer play_arrow
  • question_answer259) In earthworm, gizzard is found, in which of the following segments?

    A) 9th segment

    B) 18th segment

    C) 13th segment

    D) 16th segment

    View Answer play_arrow
  • question_answer260) The infective stage of Entamoeba histolytica is

    A) trophozoite stage

    B) binucleated cyst stage

    C) tetranucleated cyst stage

    D) None of the above

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  • question_answer261) The initiation codon in eukaryotes is

    A) AUG

    B) UGA

    C) UAG

    D) UAA

    View Answer play_arrow
  • question_answer262) Pasteurization temperature is

    A) \[72{}^\circ C\] for 20 minutes

    B) \[63{}^\circ C\] for 15 seconds

    C) \[70{}^\circ C\] for 15 seconds

    D) \[65{}^\circ C\] for 30 minutes

    View Answer play_arrow
  • question_answer263) The number of heart chambers found in cockroach is

    A) 4

    B) 7

    C) 5

    D) 13

    View Answer play_arrow
  • question_answer264) The ratio of methane, ammonia and hydrogen in Stanley Millers experiment was

    A) 3 : 1 : 2

    B) 2 : 1 : 2

    C) 1 : 2 : 1

    D) 5 : 4 : 1

    View Answer play_arrow
  • question_answer265) Convergent evolution is shown by

    A) homologous organ

    B) analogous organ

    C) vestigial organ

    D) All of these

    View Answer play_arrow
  • question_answer266) Teichoic acid is present in

    A) cell wall of Gram positive bacteria

    B) cell wall of Gram negative bacteria

    C) capsid of virus

    D) protoplasm of mycoplasma

    View Answer play_arrow
  • question_answer267) % sign is used for

    A) actinomorphic flower

    B) zygomorphic flower

    C) incomplete flower

    D) epigynous flower

    View Answer play_arrow
  • question_answer268) Crossing over occurs

    A) single strand stage

    B) two strand stage

    C) four strand stage

    D) eight strand stage

    View Answer play_arrow
  • question_answer269) Ontogeny repeats phylogeny is the statement of which of the following theories?

    A) Mutation theory

    B) Inheritance theory

    C) Recapitulation theory

    D) Natural selection theory

    View Answer play_arrow
  • question_answer270) Darwin proposed the theory of

    A) inheritance of acquired characters

    B) natural selection

    C) recapitulation

    D) continuity of germplasm

    View Answer play_arrow
  • question_answer271) Which of the following is not Darwins conclusion?

    A) Survival of the fittest

    B) Struggle for existence

    C) Inheritance of acquired characters

    D) Origin of species by natural selection

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  • question_answer272) Nuclear membrane is continuous with

    A) rough endoplasmic reticulum

    B) smooth endoplasmic reticulum

    C) cell membrane

    D) Golgi bodies

    View Answer play_arrow
  • question_answer273) Cosmid is

    A) extragenetic material in mycoplasma

    B) circular DNA in bacteria

    C) extra DNA in bacteria

    D) fragment of DNA inserted in bacteria for forming copies

    View Answer play_arrow
  • question_answer274) XO chromosomal abnormality in humans causes

    A) Turners syndrome

    B) Downs syndrome

    C) Darwins syndrome

    D) Klinefelters syndrome

    View Answer play_arrow
  • question_answer275) Fertilization of ovum takes place in rabbit, man and other placental mammals in

    A) ovary

    B) fallopian tube

    C) cervix

    D) uterus

    View Answer play_arrow
  • question_answer276) At what stage in test tube babies, the zygote is implanted in human female?

    A) 32-celled stage

    B) 64-celled stage

    C) 100-celled stage

    D) 164-celled stage

    View Answer play_arrow
  • question_answer277) Pentoses and hexoses are common

    A) monosaccharides

    B) disaccharides

    C) polysaccharides

    D) oligosaccharides

    View Answer play_arrow
  • question_answer278) Pheromone is

    A) a product of endocrine gland

    B) used for animal communication

    C) messenger RNA

    D) always protein

    View Answer play_arrow
  • question_answer279) Secretion is under control of neurosecretory nerve axons in

    A) pineal gland

    B) adrenal cortex

    C) anterior pituitary

    D) posterior pituitary

    View Answer play_arrow
  • question_answer280) If an isolated strain of DNA is kept at \[82-90{}^\circ C\] then

    A) it changes into RNA

    B) it breaks into two fragments

    C) it breaks into many fragments

    D) it uncoils and the two strands separate

    View Answer play_arrow
  • question_answer281) The smallest endocrine gland is

    A) thyroid

    B) parathyroid

    C) pituitary

    D) adrenal

    View Answer play_arrow
  • question_answer282) Ban body in mammals represents

    A) all the heterochromatin in female cells

    B) one of the two X-chromosomes in somatic cells of females

    C) all the heterochromatin in male and female cells

    D) the Y-chromosome in somatic cells of male

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  • question_answer283) Gland responsible for calcium metabolism is

    A) thymus

    B) thyroid

    C) parathyroid

    D) adrenal

    View Answer play_arrow
  • question_answer284) Which of the following is not a case of epimorphosis?

    A) Formation of sperms from small clumps of cells

    B) Regeneration of tail in a lizard

    C) Replacement of severed arm in starfish

    D) Replacement of limb in salamander

    View Answer play_arrow
  • question_answer285) The daughter born to haemophilic father and normal mother could be

    A) normal

    B) carrier

    C) haemophilic

    D) None of these

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  • question_answer286) Removal or absence of thymus in early life shall bring about

    A) lack of lymphocytes

    B) lack of antibodies

    C) lack of lymph nodes

    D) All of the above

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  • question_answer287) Bone marrow is made up of

    A) muscular fibre and fatty tissue

    B) fatty tissue and areolar tissue

    C) fatty tissue and cartilage

    D) fatty tissue, areolar tissue and blood vessel

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  • question_answer288) Mast cells secrete

    A) serotonin

    B) heparin

    C) histamine

    D) All of these

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  • question_answer289) Which one is component of ornithine cycle?

    A) Ornithine, citrulline and fumaric acid

    B) Ornithine, citrulline and arginine

    C) Ornithine, citrulline and alanine

    D) Amino acids are not used

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  • question_answer290) Bidders canal is present in

    A) male rabbit

    B) male frog

    C) female frog

    D) Both (b) and (c)

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  • question_answer291) Zygomatic arch of rabbit is formed of

    A) maxilla, periotic and jugal

    B) periotic, jugal and palatine

    C) maxilla, squamosal and jugal

    D) maxilla, premaxilla and squamosal

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  • question_answer292) Role of spleen in mammal is

    A) to control blood pressure

    B) to assist liver

    C) to act as haemopoietic tissue

    D) to assist kidneys

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  • question_answer293) Excretory product of spider is

    A) uric acid

    B) ammonia

    C) guanine

    D) None of these

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  • question_answer294) Green glands present in some arthropods help in

    A) respiration

    B) excretion

    C) digestion

    D) reproduction

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  • question_answer295) Sensation of stomach pain is due to

    A) interoceptors

    B) exteroceptors

    C) proprioceptors

    D) teloceptors

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  • question_answer296) Right lung of rabbit is divided into

    A) four lobes

    B) two lobes

    C) six lobes

    D) eight lobes

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  • question_answer297) Haemoglobin is having maximum affinity with

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

    B) \[CO\]

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

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

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  • question_answer298) Veliger larva occurs in phylum

    A) Mollusca

    B) Echinodermata

    C) Arthropoda

    D) Cnidaria

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  • question_answer299) The most recent and direct prehistoric ancestor of present man is

    A) Cro-magnon

    B) Pre-Neanderthal

    C) Neanderthal

    D) None of these

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  • question_answer300) Darwins finches refers to

    A) fossils of birds collected by Darwin at Galapagos islands

    B) a type of birds present of Galapagos islands

    C) migratory birds collected by Darwin at Galapagos islands

    D) fossils of reptiles collected by Darwin at Galapagos islands

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