Solved papers for BCECE Medical BCECE Medical Solved Papers-2005

done BCECE Medical Solved Papers-2005

  • question_answer1) Consider the following statements: The total energy of a particle executing simple harmonic motion depends on its:

    (I) amplitude
    (II) period
    (III) displacement
    Of these statements:

    A) I and II are correct

    B) II and III are correct

    C) I and III are correct

    D) I, II and III are correct

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  • question_answer2) The maximum velocity of a simple harmonic motion represented by \[y=3\sin \left( 100\,t+\frac{\pi }{6} \right)\,\,m\] is given by :

    A) 300 m/s

    B) \[\frac{3\pi }{6}\] m/s

    C) 100 m/s

    D) \[\frac{\pi }{6}\] m/s

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  • question_answer3) When earth moves round the sun, the quantity which remains constant is :

    A) angular velocity

    B) kinetic energy

    C) potential energy

    D) area! Velocity

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  • question_answer4) 1 kg body explodes into three fragments. The ratio of their masses is 1:1:3. The fragments of same mass move perpendicular to each other with speeds 30 m/s, while the heavier part remains in the initial direction. The speed of heavier part is :

    A) \[\frac{10}{\sqrt{2}}\] m/s

    B) \[10\sqrt{2}\]m/s

    C) \[20\sqrt{2}\]m/s

    D) \[30\sqrt{2}\] m/s

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  • question_answer5) The dimensional formula for the gravitational constant is :

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

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

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

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

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  • question_answer6) A particle is moving in a circle of radius R with constant speed v. If radius is doubled, then its centripetal force to keep the same speed gets:

    A) twice as great as before

    B) half

    C) one-fourth

    D) remains constant

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  • question_answer7) If linear density of a rod of length 3 m varies as\[\lambda =2+x\], then the position of the centre of gravity of the rod is :

    A) \[\frac{7}{3}\] m

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

    C) \[\frac{10}{7}\]m

    D) \[\frac{9}{7}\]m

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  • question_answer8) A block of mass m initially at rest is dropped from a height h on to a spring of force constant k. The maximum compression in the spring is t, then:

    A) \[mgh=\frac{1}{2}k\,\,{{x}^{2}}\]

    B) \[mg\,(h+x)=\frac{1}{2}k\,\,{{x}^{2}}\]

    C) \[mgh=\frac{1}{2}\,k\,\,{{x}^{2}}\]

    D) \[mg\,(h+x)=\frac{1}{2}\,k\,{{(x+h)}^{2}}\]

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  • question_answer9) A ball of mass m moves with speed v and it strikes normally with a wall and reflected back normally. If its time of contact with wall is t, then find force exerted by ball on the wall.

    A) \[\frac{2\,mv}{t}\]

    B) \[\frac{mv}{t}\]

    C) \[mvt\]

    D) \[\frac{mv}{2t}\]

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  • question_answer10) A wheel of radius 1m rolls forward half a revolution on a horizontal ground. The magnitude of the displacement of the point of the wheel initially in contact with the ground is:

    A) \[2\,\,\pi \]

    B) \[\sqrt{2\,\,\pi }\]

    C) \[\sqrt{{{\pi }^{2}}+4}\]

    D) \[\pi \]

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  • question_answer11) Water is flowing in a pipe of diameter 4 cm with a velocity 3 m/s. The water then enters into a pipe of diameter 2 cm. The velocity of water in the other pipe is :

    A) 3 m/s

    B) 6 m/s

    C) 12 m/s

    D) 8 m/s

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  • question_answer12) The surface tension of a liquid is 5 N/m. If a film is held on a ring of area 0.02 \[{{m}^{2}}\], its total surface energy is about:

    A) \[2\times {{10}^{-2}}J\]

    B) \[2.5\times {{10}^{-2}}J\]

    C) \[2\times {{10}^{-1}}J\]

    D) \[3\times {{10}^{-1}}J\]

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  • question_answer13) A viscous fluid is flowing through a cylindrical tube. The velocity distribution of the fluid is best represented by the diagram :

    A)

    B)

    C)

    D) none of these

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  • question_answer14) A wire is stretched by 1 mm by a force of 1 kN. The work done in stretching the wire is :

    A) 5 erg

    B) 5 J

    C) 0.5 erg

    D) 0.5 J

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  • question_answer15) In isochoric process :

    A) \[\Delta Q=\Delta Q\]

    B) \[\Delta Q=\Delta W\]

    C) \[\Delta U=\Delta W\]

    D) none of these

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  • question_answer16) Which is not a path function?

    A) \[\Delta Q\]

    B) \[\Delta Q+\Delta W\]

    C) \[\Delta W\]

    D) \[\Delta Q-\Delta W\]

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  • question_answer17) The work done, W during an isothermal process in which 1 mole of the gas expands from an initial volume \[{{V}_{1}}\] to a final volume \[{{V}_{2}}\]is given by : T = gas constant, T = temperature)

    A) \[R\,({{V}_{2}}-{{V}_{1}}){{\log }_{e}}\left( \frac{{{T}_{1}}}{{{T}_{2}}} \right)\]

    B) \[R\,({{T}_{2}}-{{T}_{1}}){{\log }_{e}}\left( \frac{{{V}_{1}}}{{{V}_{2}}} \right)\]

    C) \[RT\,{{\log }_{e}}\left( \frac{{{V}_{2}}}{{{V}_{1}}} \right)\]

    D) \[2RT\,{{\log }_{e}}\left( \frac{{{V}_{1}}}{{{V}_{2}}} \right)\]

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  • question_answer18) The P-V diagram of a system undergoing thermodynamic transformation is shown in figure. The work done by the system in going from \[A\to B\to C\] is 30 J, and 40 J heat is given to the system. The change in internal energy between A and C is :

    A) 10 J

    B) 70 J

    C) 84 J

    D) 134 J

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  • question_answer19) The degrees of freedom of a molecule of a triatomic gas are :

    A) 2

    B) 4

    C) 6

    D) 8

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  • question_answer20) Ozone layer blocks the radiations of wave- length:

    A) less than \[3\times {{10}^{-7}}m\]

    B) equal to \[3\times {{10}^{-7}}m\]

    C) more than \[3\times {{10}^{-7}}m\]

    D) all of the above

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  • question_answer21) Two simple harmonic waves of the same amplitude and frequency differ by a phase\[\pi /2\]. When they are fed simultaneously to the X and y-plates of a CRO, the screen would display the trace of:

    A) a circle

    B) an ellipse

    C) a straight line

    D) a square

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  • question_answer22) The speed of a wave is 360 m/s and frequency is 500 Hz. Phase difference between two consecutive particles is \[{{60}^{o}}\], then path difference between them will be :

    A) 0.72 cm

    B) 120 cm

    C) 12 cm

    D) 7.2 cm

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  • question_answer23) A string of length 2 m is fixed at both ends. If this string vibrates in its fourth normal mode with a frequency of 500 Hz, then the waves would travel on it with a velocity of:

    A) 125 m/s

    B) 250 m/s

    C) 500 m/s

    D) 1000 m/s

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  • question_answer24) The fundamental frequency of a sonometer wire is n. If its radius is doubled and its tension becomes half, the material of the wire remains same, the new fundamental frequency will be:

    A) n

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

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

    D) \[\frac{n}{2\sqrt{2}}\]

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  • question_answer25) In open organ pipe, if fundamental frequency is n, then the other frequencies are :

    A) n, 2 n, 3n, 4n

    B) n, 3n, 5n

    C) n, 2n, 4n, 8n

    D) none of these

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  • question_answer26) A sound wave of frequency \[f\] propagating through air with a velocity c, is reflected from a surface which is moving away from the source with a constant speed v. The frequency of the reflected wave, measured by the observer the position of the source is:

    A) \[\frac{f(c-v)}{c+v}\]

    B) \[\frac{f(c+v)}{c-v}\]

    C) \[\frac{f(c+2v)}{c+v}\]

    D) \[\frac{f(c-v)}{c-2v}\]

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  • question_answer27) A convex lens of focal length 10 cm and image formed by it, is at least distance of distinct vision then the magnifying power is:

    A) 3.5

    B) 2.5

    C) 1.5

    D) 1.4

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  • question_answer28) If two +5 D. lenses are mounted at some distance apart, the equivalent power will always be negative, if the distance is

    A) greater than 40 cm

    B) equal to 40 cm

    C) equal to 10 cm

    D) less than 10 cm

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  • question_answer29) A Galilean telescope has an objective of focal length 100 cm and magnifying power 50. The distance between the two lenses in normal adjustment will be

    A) 98 cm

    B) 100 cm

    C) 150 cm

    D) 200 cm

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  • question_answer30) A film projector magnifies a 100 \[c{{m}^{2}}\] film strip on a screen. If the linear magnification is 4, the area of the magnified film on the screen is:

    A) 1600 \[c{{m}^{2}}\]

    B) 400 \[c{{m}^{2}}\]

    C) 800 \[c{{m}^{2}}\]

    D) 200 \[c{{m}^{2}}\]

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  • question_answer31) The exposure time of a camera lens at \[f/2.8\] setting is 1/200 s. The correct exposure time at \[f/5.6\] setting is:]

    A) 0.02 s

    B) 0.04 s

    C) 0.20 s

    D) 0.40s

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  • question_answer32) In Youngs double slit experiment, the slit width and the distance of slits from the screen both are doubled. The fringe width:

    A) increases

    B) decreases

    C) remains unchanged

    D) none of the above

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  • question_answer33) In Youngs double slit experiment, the aperture screen distance is 2 m. The slit width is 1 mm. Light of 600 nm is used. If a thin plate of glass\[(\mu =1.5)\] of thickness 0.06 mm is placed over one of the slits, then there will be a lateral displacement of the fringes by :

    A) zero

    B) 6 cm

    C) 10 cm

    D) 15 cm

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  • question_answer34) A single slit is used to observe diffraction pattern with red light. On replacing the red light with violet light the diffraction pattern would:

    A) remain unchanged

    B) become narrower

    C) become broader

    D) disappear

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  • question_answer35) The resistance of a discharge tube is-

    A) zero

    B) ohmic

    C) non-ohmic

    D) infinity

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  • question_answer36) Which one of the following processes depends on gravity?

    A) Conduction

    B) Convection

    C) Radiation

    D) None of the above

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  • question_answer37) The radius of solid metallic non-conducting sphere is 60 cm and charge on the sphere is 500\[\mu C\]. The electric field at a distance 10 cm from centre of sphere is :

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

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

    C) \[5\times {{10}^{6}}N/C\]

    D) \[5\times {{10}^{8}}N/C\]

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  • question_answer38) The equivalent capacitance between the points A and B in the following circuit is :

    A) \[1\,\mu F\]

    B) \[2\,\mu F\]

    C) \[4\,\mu F\]

    D) \[8\,\mu F\]

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  • question_answer39) The figure shows a network of currents. The magnitude of current is shown here The current/will be:

    A) 3 A

    B) 9 A

    C) 13 A

    D) 19 A

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  • question_answer40) If resistance of voltmeter is 10000 \[\Omega \] and resistance of galvanometer is\[2\,\Omega \], then find R when voltmeter reads 12 V and galvanometer reads 0.1 A.

    A) 118 \[\Omega \]

    B) 120 \[\Omega \]

    C) 124 \[\Omega \]

    D) 114 \[\Omega \]

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  • question_answer41) Two bulbs 25 W; 220 V and 100 W, 220 V are given. Which has higher resistance?

    A) 25 W bulb

    B) 100 W bulb

    C) Both bulbs will have equal resistance

    D) Resistance of bulbs cannot be compared

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  • question_answer42) An electron (mass \[=9.1\times {{10}^{-31}}kg\], charge \[1.16\times {{10}^{-19}}C\]) experiences no deflection, if subjected to an electric field of \[3.32\times {{10}^{5}}\] V/m, and a magnetic field of \[2.0\times {{10}^{-3}}Wb/{{m}^{2}}\] . Both the fields are normal to the path of electron and to each other. If the electric field is removed, then the electron will revolve in an orbit of radius :

    A) 45 m

    B) 4.5 m

    C) 0.45 m

    D) 0.045 m

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  • question_answer43) An LCR circuit of \[R=100\,\Omega \] is connected to an AC source 100 V, 50 Hz. The magnitude of phase difference between current and voltage is \[{{30}^{o}}\]. The power dissipated in the LCR circuit is:

    A) 50 W

    B) 86.6 W

    C) 100 W

    D) 200 W

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  • question_answer44) If half-life of radium is 77 days, its decay constant will be :

    A) \[3\times {{10}^{-3}}\]/day

    B) \[9\times {{10}^{-3}}\]/day

    C) \[1\times {{10}^{-3}}\]/day

    D) \[6\times {{10}^{-3}}\]/day

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  • question_answer45) In a radioactive reaction \[_{92}{{X}^{232}}{{\to }_{82}}{{X}^{204}}\] the number of a-particles emitted is :

    A) 7

    B) 6

    C) 5

    D) 4

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  • question_answer46) According to Bubbles law, the red-shift (Z) of a receding galaxy and its distance r from earth are related as:

    A) \[Z\propto r\]

    B) \[Z\propto \frac{1}{r}\]

    C) \[Z\propto \frac{1}{{{r}^{2}}}\]

    D) \[Z\propto {{r}^{3/2}}\]

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  • question_answer47) The de-Broglie wavelength of a body of mass and kinetic energy E is given by:_

    A) \[\lambda =\frac{h}{mE}\]

    B) \[\lambda =\frac{\sqrt{2\,mE}}{h}\]

    C) \[\lambda =\frac{h}{2\,mE}\]

    D) \[\lambda =\frac{h}{\sqrt{2\,mE}}\]

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  • question_answer48) Different voltages are applied across a p-n junction and the currents are measured from each value. Which of the following graphs is obtained between voltage and current?

    A)

    B)

    C)

    D)

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  • question_answer49) A logic gate having two inputs A and B and output C has the following truth table

    A B C
    1 1 0
    1 0 1
    0 1 1
    0 0 1
    It is :

    A) an OR gate    

    B) an AND gate

    C) a NOR gate    

    D) a NAND gate

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  • question_answer50) For sky wave propagation of 10 MHz signal, what should be the minimum electron density in ionosphere?

    A) \[\sim 1.2\times {{10}^{12}}{{m}^{-3}}\]

    B) \[\sim {{10}^{6}}{{m}^{-3}}\]

    C) \[\sim {{10}^{4}}{{m}^{-3}}\]

    D) \[\sim {{10}^{22}}{{m}^{-3}}\]

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  • question_answer51) The number of molecules of \[C{{O}_{2}}\] present in 44 g of \[C{{O}_{2}}\] is :

    A) \[6.0\times {{10}^{23}}\]

    B) \[3\times {{10}^{23}}\]

    C) \[12\times {{10}^{23}}\]

    D) \[3\times {{10}^{10}}\]

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  • question_answer52) Magnitude of kinetic energy in an orbit is equal to :

    A) half of the potential energy

    B) twice of the potential energy

    C) one fourth of the potential energy

    D) none of the above

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  • question_answer53) A p-orbital in a given shell can accommodate upto:

    A) four electrons

    B) two electrons with parallel spin

    C) six electrons

    D) two electrons with opposite spin

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  • question_answer54) Which of the following is Heisenberg uncertainty principle?

    A) \[\Delta x\,.\,\Delta p\ge \frac{h}{4\pi }\]

    B) \[\Delta x\,.\,\Delta p=\frac{h}{4\pi }\]

    C) \[\Delta x\,.\,\Delta p\le \frac{h}{4\pi }\]

    D) \[\Delta x\,.\,\Delta p<\frac{h}{4\pi }\]

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  • question_answer55) Chromium is represented by the electronic configuration :

    A) \[[Ne]\,3{{s}^{2}}3{{p}^{6}}3{{d}^{1}}4{{s}^{2}}\]

    B) \[[Ne]\,3{{s}^{2}}3{{p}^{6}}3{{d}^{2}}4{{s}^{1}}\]

    C) \[[Ne]\,3{{s}^{2}}3{{p}^{6}}3{{d}^{5}}4{{s}^{1}}\]

    D) \[[Ne]\,3{{s}^{2}}3{{p}^{6}}4{{s}^{2}}3{{d}^{4}}\]

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  • question_answer56) Number of neutron in \[{{C}^{12}}\]is :

    A) 61

    B) 7

    C) 8

    D) 9

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  • question_answer57) H-bond is not present in :

    A) water

    B) glycerol

    C) hydrogen fluoride

    D) hydrogen sulphide

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  • question_answer58) Oxidation number of S in \[SO_{4}^{2-}\]:

    A) +6

    B) +3

    C) +2

    D) -2

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  • question_answer59) 2g of \[{{O}_{2}}\] at \[{{270}^{o}}C\] and 760 mm of Hg pressure has volume :

    A) 1.4 L

    B) 2.8 L

    C) 11.2L

    D) 22.4 L

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  • question_answer60) If pressure increases then its effect on given equilibrium \[2NO\,(g){{N}_{2}}(g)+{{O}_{2}}(g)\] is shift in:

    A) forward direction

    B) backward direction

    C) no effect

    D) none of the above

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  • question_answer61) Which is Lewis base: \[{{I}_{2}}+{{I}^{-}}\xrightarrow{{}}{{I}_{3}}^{-}?\]

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

    B) \[{{I}_{3}}^{-}\]

    C) \[{{I}^{-}}\]

    D) None of these

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  • question_answer62) The heat of neutralisation of any strong acid and a strong base is nearly equal to:

    A) -75.3kJ

    B) +57.3kJ

    C) -57.3kJ

    D) + 75.3kJ

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  • question_answer63) pH of \[{{10}^{-8}}M\,HCl\] solution is:

    A) 8

    B) between 7 and 8

    C) between 6 and 7

    D) between 8 and 9

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  • question_answer64) A reaction \[A\xrightarrow{{}}B\] follows a second order kinetic. Doubling the concentration of A will increase the rate of formation of B by a factor of:

    A) 1/4

    B) 4

    C) 1/2

    D) 2

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  • question_answer65) Which of the following is always negative for exothermic reaction?

    A) \[\Delta H\]

    B) \[\Delta S\]

    C) \[\Delta G\]

    D) None of these

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  • question_answer66) Unit of equivalent conductance is :

    A) \[oh{{m}^{-1}}c{{m}^{2}}\,{{(g-eq)}^{-1}}\]

    B) \[ohm\,\,cm\,(g-eq)\]

    C) \[ohm\,\,c{{m}^{2}}\,{{(g-eq)}^{-1}}\]

    D) \[oh{{m}^{-1}}\,cm\,{{(g-eq)}^{-1}}\]

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  • question_answer67) For cell reaction \[Zn+C{{u}^{2+}}\xrightarrow{{}}Z{{n}^{2+}}+Cu\] cell representation is:

    A) \[C{{u}^{2+}}|Zn||Z{{n}^{2+}}|Cu\]

    B) \[Cu|C{{u}^{2+}}||Z{{n}^{2+}}|Zn\]

    C) \[Cu|Z{{n}^{2+}}||Zn|C{{u}^{2+}}\]

    D) \[C{{u}^{2+}}|Zn||Z{{n}^{2+}}|Cu\]

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  • question_answer68) Molal solution means 1 mole of solute present in:

    A) 1000 g of solvent

    B) 1 L of solvent

    C) 1 Lot solution

    D) 1000g of solution

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  • question_answer69) Which of the following shows maximum depression in freezing point?

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

    B) \[NaCl\]

    C) Urea

    D) Glucose

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  • question_answer70) An emulsion is a colloidal dispersion of:

    A) a liquid in a gas

    B) a liquid in a liquid

    C) a solid in a liquid

    D) a gas in a solid

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  • question_answer71) Size of colloidal particle is :

    A) 1 nm

    B) 1-100 nm

    C) < 100 nm

    D) > 1000 nm

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  • question_answer72) Ether show isomerism with:

    A) alcohol

    B) ethane

    C) halide

    D) aldehyde

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  • question_answer73) Which of the following shows geometrical isomerism?

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

    B) \[(C{{H}_{2}})\,{{(COOH)}_{2}}\]

    C) \[(C{{H}_{2}})\,{{(COOH)}_{2}}\]

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

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  • question_answer74) Which of the following is present in natural gas?

    A) n-butane

    B) Ethane

    C) Methane

    D) Propane

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  • question_answer75) Which of the following have delocalized electron?

    A) Benzene

    B) Cyclohexane

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

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

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  • question_answer76) Nitration of benzene is :

    A) electrophilic substitution

    B) electrophilic addition

    C) nucleophilic substitution

    D) nucleophilic addition

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  • question_answer77) Alkyl halide can be converted into alkene by :

    A) nucleophilic substitution reaction

    B) elimination reaction

    C) both nucleophilic substitution and elimination reaction

    D) rearrangement

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  • question_answer78) Which of the following compounds is most acidic?

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

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

    C) \[CH\equiv CH\]

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

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  • question_answer79) Which of the following reacts with \[KMn{{O}_{4}}\] but does not react with \[AgN{{O}_{3}}\]?

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

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

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

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

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  • question_answer80) Which of the following compound does not show anti-Markownikoffs addition?

    A) Propene

    B) 1-butene

    C) 2-butene

    D) 2-pentene

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  • question_answer81) Methyl ketone is identified by :

    A) lodoform test

    B) Fehling solution

    C) Toilers reagent

    D) Schiffs reagent

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  • question_answer82) Which of the following does not give Fehling solution test?

    A) Acetone

    B) Propanal

    C) Ethanal

    D) Butanal

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  • question_answer83) Cyanide group on hydrolysis gives :

    A) acid

    B) acetamide

    C) amine

    D) hydrate

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  • question_answer84) In alkyl cyanide alkyl group attached with :

    A) C of CN group

    B) N of CN group

    C) either C or N of CN group

    D) both C and N of CN group

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  • question_answer85) Fat on hydrolysis gives which alcohol?

    A) Glycerol

    B) Propanol

    C) Butanol

    D) Ethanol

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  • question_answer86) Which of the following is natural polymer?

    A) PVC

    B) Nylon 66

    C) Teflon

    D) Cellulose

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  • question_answer87) Condensation product of caprolactum is :

    A) Nylon 6

    B) Nylon 66

    C) Nylon 60

    D) Nylon 6,10

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  • question_answer88) Which inert gas have highest foiling point?

    A) Xe

    B) Ar

    C) Kr

    D) He

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  • question_answer89) In Ostwald process of manufacturing of \[HN{{O}_{3}}\], catalyst used is:

    A) Mo

    B) Fe

    C) Mn

    D) Pt

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  • question_answer90) Important ore of Mg is :

    A) Gypsum

    B) Carnallite

    C) Magnatide

    D) Carnolite

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  • question_answer91) Purification of Al by electrolysis method is called:

    A) Halls process

    B) Baeyer process

    C) Ostwald process

    D) Hoopes process

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  • question_answer92) Decreasing size of ions is:

    A) \[I>{{I}^{-}}>{{I}^{+}}\]

    B) \[{{I}^{-}}>I>{{I}^{+}}\]

    C) \[{{I}^{+}}>{{I}^{-}}>I\]

    D) \[I>{{I}^{+}}>{{I}^{-}}\]

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  • question_answer93) Which of the following is kept in water?

    A) White phosphorus

    B) Sodium

    C) Potassium

    D) Calcium

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  • question_answer94) When heated \[N{{H}_{3}}\] is passed over \[CuO\] gas evolved is :

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

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

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

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

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  • question_answer95) Formula of hypophosphorus acid is :

    A) \[H-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ H \end{smallmatrix}}{\mathop{P}}\,}}\,-OH\]

    B) \[HO-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ OH \end{smallmatrix}}{\mathop{P}}\,}}\,-OH\]

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

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

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  • question_answer96) Most powerful reducing agent is :

    A) Li

    B) Na

    C) Ca

    D) Mg

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  • question_answer97) When calomel reacts with \[N{{H}_{4}}OH\] solution the compound formed is :

    A) \[N{{H}_{2}}=Hg-Cl\]

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

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

    D) \[HgC{{l}_{2}}N{{H}_{3}}\]

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  • question_answer98) Which of the following is coloured compound?

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

    B) \[Cul\]

    C) \[NaCl\]

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

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  • question_answer99) \[{{H}_{2}}{{O}_{2}}\] is formed by which of the following compounds?

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

    B) \[NaOH\]

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

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

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  • question_answer100) Copper sulphate solution reacts with KCN and gives:

    A) \[{{K}_{3}}[Cu{{(CN)}_{4}}]\]

    B) \[CuCN\]

    C) \[Cu{{(CN)}_{2}}\]

    D) \[{{K}_{2}}[Cu{{(CN)}_{4}}]\]

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  • question_answer101) Which one is absent in free-state during origin of life?

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

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

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

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

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  • question_answer102) Peripatus is connecting link between:

    A) Arthropoda and Arinelida

    B) Arthropoda and Mollusca

    C) Arthropoda and Echinodermata

    D) Arthropoda and Platyhelminthes

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  • question_answer103) Theory of natural selection is given by:

    A) Charles Darwin

    B) Wallace

    C) J.B. Lamarck

    D) Mendel

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  • question_answer104) Modern synthetic theory of evolution not involved:

    A) gene mutation

    B) gene recombination

    C) natural selection

    D) increase in size

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  • question_answer105) Number of peristomial teeth in moss is :

    A) 16 + 16

    B) 16 + 32

    C) 8 + 16

    D) 32 + 32

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  • question_answer106) Reserve food material of algae is :

    A) starch

    B) glycogen

    C) fat

    D) sugar

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  • question_answer107) Multinucleated filament of Rhizopus is :

    A) coenocytic

    B) conidia

    C) heterothallus

    D) homothallus

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  • question_answer108) Classification based on chromosome number is:

    A) cytotaxonomy

    B) numerical taxonomy

    C) karyotaxonomy

    D) biochemistry

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  • question_answer109) Noh-chordates have :

    A) notochord

    B) dorsal tubular nerve chord

    C) pharyngeal gill cleft

    D) absence of hepatic portal system

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  • question_answer110) Sea anemone belong to phylum :

    A) Protozoa

    B) Porifera

    C) Coelenterata

    D) Echinodermata

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  • question_answer111) The males of honey-bee are produced by:

    A) sexually

    B) budding

    C) spore formation

    D) parthenogenesis

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  • question_answer112) Which of the following is maximum in chloroplast?

    A) RuBP carboxylase

    B) Hexokinase

    C) Phosphatase

    D) Nuclease

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  • question_answer113) Molecular weight of protein is :

    A) > 12000

    B) < 6000

    C) < 12000

    D) 600-3000

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  • question_answer114) Which of the following is non-reducing sugar?

    A) Starch

    B) Sucrose

    C) Maltose

    D) Galactose

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  • question_answer115) Fat soluble vitamin is :

    A) A

    B) B

    C) C

    D) Cholesterol

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  • question_answer116) Richest energy compound is :

    A) creatinine phosphate

    B) ATP

    C) carbohydrate

    D) fat

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  • question_answer117) Which is the hereditary material in bacteria?

    A) Nucleic acid

    B) Nucleic acid and cytoplasm

    C) Nucleic acid and histone

    D) None of the above

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  • question_answer118) If a dwarf plant is treated with gibberellins it becomes tall and this plant now crosses with pure tall plant then progeny of first generation (Fi) is :

    A) all dwarf

    B) all tall

    C) 75% tall and 25% dwarf

    D) 75 % dwarf and 25 % tall

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  • question_answer119) Unit of nucleic acid is :

    A) nucleotide

    B) nucleoside

    C) nucleic acid

    D) all of these

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  • question_answer120) DNA replication requires :

    A) DNA polymerase only

    B) DNA polymerase and ligase

    C) Ligase only

    D) RNA polymerase

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  • question_answer121) Which of the following is not correct about translation?

    A) It starts with AUG

    B) Stopped at termination codon

    C) Based on operon model

    D) Occurs in nucleus

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  • question_answer122) Method by which information reaches from DNA to RNA is:

    A) transcription

    B) translation

    C) transformation

    D) transduction

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  • question_answer123) ABO blood group system is given by :

    A) Landsteiner

    B) Wallace

    C) de Vries

    D) Lamarck

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  • question_answer124) Edible part of tomato is :

    A) epiparp

    B) pericap and placenta

    C) mesocarp

    D) thalamus

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  • question_answer125) Which of the following is not true for double fertilization?

    A) Discovered by Nawaschin

    B) Male gamete and secondary nucleus fused to form endosperm nucleus

    C) Endosperm nucleus is diploid

    D) Endosperm provides nutrition to embryo

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  • question_answer126) The floral formula, belongs to plant of:

    A) Allium cepa

    B) Sunflower

    C) Cucurbita

    D) Brassica

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  • question_answer127) Vessels and companion cells are characteristics of:

    A) angiosperm

    B) gymnosperm

    C) pteridophyta

    D) fern

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  • question_answer128) Conjoint, collateral and closed vascular bundle is found in:

    A) monocot stem

    B) monocot root

    C) dicot stem

    D) dicot root

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  • question_answer129) Conglobate gland is present in :

    A) female cockroach

    B) earthworm

    C) male cockroach

    D) honey bee

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  • question_answer130) Function of clitellum is :

    A) formation of cocoon

    B) excretion

    C) respiration

    D) circulation

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  • question_answer131) The stage upto which glycolysis and fermentation is common is :

    A) dihydroxy acetone

    B) 3-phosphoglyceraldehyde

    C) pyruvate

    D) glucose-6-phosphate

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  • question_answer132) Which of the following is not an intermediate of Krebs cycle?

    A) Acetyl Co-A

    B) Citric acid

    C) Succinic acid

    D) Lactic acid

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  • question_answer133) Dental formula of adult man is :

    A) \[\frac{2123}{2123}\]

    B) \[\frac{2122}{2122}\]

    C) \[\frac{2122}{2122}\]

    D) \[\frac{2124}{2124}\]

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  • question_answer134) Rennin secreted in which part of alimentary canal?

    A) Stomach

    B) Kidney

    C) Duodenum

    D) Small intestine

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  • question_answer135) \[C{{O}_{2}}\] transported mainly by :

    A) plasma

    B) carbonic acid

    C) bicarbonate

    D) carboxyhaemoglobin

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  • question_answer136) Respiratory quotient of carbohydrate is :

    A) unity

    B) greater than unity

    C) less than unity

    D) equal to five

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  • question_answer137) By which mechanism, oxygen is transported from lungs to cells?

    A) Diffusion

    B) Facilitated diffusion

    C) Transpiration

    D) Osmosis

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  • question_answer138) If ADH level of blood is less :

    A) volume of urine increases

    B) volume of urine decreases

    C) volume of urine is normal

    D) volume of urine is unaffected

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  • question_answer139) Enzyme present in sperm acrosome to dissolve egg membrane is :

    A) sperm lysine

    B) ovolysin

    C) spermatogenolysin

    D) spermatocymin

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  • question_answer140) Correct sequence in embryonic development of frog is :

    A) Zygote \[\to \] Cleavage \[\to \] Blastula \[\to \] Gastrula

    B) Zygote \[\to \] Cleavage \[\to \] Gastrula \[\to \] Blastula

    C) Cleavage \[\to \] Zygotes \[\to \] Blastula \[\to \] Gastrula

    D) Zygote \[\to \] Blastula \[\to \] Cleavage \[\to \] Gastrula

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  • question_answer141) Air quality indicator is :

    A) lichen

    B) moss

    C) algae

    D) none of these

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  • question_answer142) Green revolution is related with :

    A) Norman Borlaug

    B) Sunder Lal Bahuguna

    C) Reiter

    D) Haeckel

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  • question_answer143) Sea plants are an example of :

    A) xerophyte

    B) mesophyte

    C) hydrophyte

    D) submerged plant

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  • question_answer144) Pyramids of biomass in pond ecosystem is :

    A) inverted

    B) upright

    C) linear

    D) irregular

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  • question_answer145) Which of the following is false for Bt transgenic plant?

    A) Disease resistance

    B) Prepared by Bacillus thuringiensis

    C) It is recombinant type

    D) No such plant is known

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  • question_answer146) Reserpine is obtained from :

    A) Rauwolffia serpentine

    B) coffee plant

    C) tea plant

    D) pea plant

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  • question_answer147) Which of the following pair is correct?

    A) E.coli-E. histolytica

    B) Culex-Elephantiasis

    C) Bed bug-Kala-azar

    D) Plasmodium-Sleeping sickness

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  • question_answer148) Liver cirrhosis is caused by :

    A) excess alcoholism

    B) no alcohol

    C) due to bacterial infection

    D) due to viral infection

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  • question_answer149) Allergy involves :

    A) IgE

    B) IgG

    C) IgA

    D) IgM

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  • question_answer150) In recombination, vector used is :

    A) plasmid

    B) E.coli

    C) nucleic acid

    D) cellulose

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