question_answer 1) In which of the transistor amplifier the voltage gain is highest?
A)
Common collector
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B)
Common base
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C)
Common emitter
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D)
Same for all type
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question_answer 2) On disintegration of one atom of U-235 the amount of energy obtained is 200 MeV then the power obtained in a reactor is 1000 kW. Then the number of atoms disintegrated per second are:
A)
\[3.125\times {{10}^{16}}\]
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B)
\[3.125\times {{10}^{8}}\]
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C)
\[3.125\times {{10}^{30}}\]
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D)
\[3.125\times {{10}^{25}}\]
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question_answer 3) A tin nucleus has charge + 50 eV. If the proton is at\[{{10}^{-12}}m\]from the nucleus. Then the potential at this position will be (charge on protons\[=1.6\times {{10}^{-19}}C\]):
A)
\[7.2\times {{10}^{8}}V\]
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B)
\[3.6\times {{10}^{4}}V\]
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C)
\[14.4\times {{10}^{4}}V\]
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D)
\[7.2\times {{10}^{4}}V\]
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question_answer 4) A bar magent has a magnetic moment equal to\[5\times {{10}^{-5}}\Omega m\]. It is suspended in a magnetic field, which has a magnetic induction\[B=8\pi \times {{10}^{-4}}\]tesla. Then the magnet .vibrates with period of vibration equal to 15 sec. Then the moment of inertia of magnet will be:
A)
\[7.16\times {{10}^{-7}}kg\text{ }{{m}^{2}}\]
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B)
\[14.32\times {{10}^{7}}kg\text{ }{{m}^{2}}\]
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C)
\[3.58\times {{10}^{-7}}kg\text{ }{{m}^{2}}\]
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D)
none of these
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question_answer 5) The coefficient of mutual inductance when magnetic flux changes by\[5\times {{10}^{-2}}\] weber and changes in current is 0.01 A, will be:
A)
10H
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B)
5H
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C)
2.5H
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D)
7.5H
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question_answer 6) In an experiment, n small drops of same size are charged to V volts each, if they form a single large drop, then it potential is:
A)
\[V{{n}^{2/3}}\]
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B)
\[V{{n}^{1/3}}\]
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C)
\[\sqrt{Vn}\]
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D)
\[\frac{V}{n}\]
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question_answer 7) Heat produced in the coil is directly proportional to:
A)
temperature
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B)
current
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C)
resistance
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D)
all of these
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question_answer 8) The refractive index of water and glass with respect to air is 1.3 and 1.5 respectively then the refractive index of glass with respect to water will be:
A)
\[\frac{2.6}{1.5}\]
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B)
\[\frac{1.5}{2.6}\]
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C)
\[\frac{1.5}{1.3}\]
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D)
\[\frac{1.3}{1.5}\]
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question_answer 9) The X-ray cannot be diffracted by means of an ordinary grating due to:
A)
large wavelength
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B)
short wavelength
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C)
high speed
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D)
low speed
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question_answer 10) Velocity of sound in vacuum is:
A)
\[330\text{ }m/s\]
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B)
\[500\text{ }m/s\]
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C)
\[-165\text{ }m/s\]
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D)
zero
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question_answer 11) Two thin lenses are in contact with each other and focal length of the combination is 80 cm. If focal length of one lens is 20 cm. Then the power of the other lens will be:
A)
\[-3.75\text{ }D\]
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B)
\[-10.0D\]
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C)
\[1.67D\]
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D)
\[5.0D\]
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question_answer 12) A candle placed 25 cm from a lens, forms an image on the screen placed 75 cm on the other end of the lens, then the focal length and type of the lens will be:
A)
\[+21.25\text{ }cm,\] convex lens
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B)
\[-21.25\text{ }cm,\]concave lens
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C)
\[-18.75\text{ }cm,\]concave lens
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D)
\[+18.75\text{ }cm,\]convex lens
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question_answer 13) A plane mirror reflecting a ray of incident light, is rotated through an angle 6 about an axis through the point of incidence in the plane of the mirror perpendicular to the plane of incidence. Then the reflected ray will rotate through an angle equal to:
A)
\[3\theta \]
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B)
\[2\theta \]
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C)
\[\theta \]
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D)
\[0.8\theta \]
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question_answer 14) The first law of .thermodynamics is a special case of:
A)
Law of conservation of energy
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B)
Weins displacement law
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C)
Charles law
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D)
Newtons law
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question_answer 15) In gases of diatomic molecules, the ratio of two specific heats of gases\[\frac{{{C}_{P}}}{{{C}_{\upsilon }}}\]will be:
A)
1.2
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B)
1.33
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C)
1.66
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D)
1.4
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question_answer 16) The average velocity of molecules in a gas in equilibrium is proportional to:
A)
\[{{T}^{3/2}}\]
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B)
\[{{T}^{4}}\]
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C)
\[{{T}^{1/2}}\]
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D)
\[T\]
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question_answer 17) Water stands upto a height h behind the vertical wall of a dam. If width of the dam be &, then the net horizontal force pushing the dam down by the stream will be (\[\rho \]is the density of water):
A)
\[\frac{{{h}^{2}}b\rho g}{2}\]
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B)
\[\frac{{{h}^{2}}{{b}^{2}}\rho g}{4}\]
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C)
\[2hb\rho g\]
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D)
\[\frac{{{h}^{2}}b\rho g}{4}\]
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question_answer 18) A spring constant of a spring is k, when it is divided into\[n\]equal parts, then the spring constant of one piece will be:
A)
\[\frac{(n+1)k}{n}\]
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B)
\[\frac{nk}{n+1}\]
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C)
\[k/n\]
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D)
\[nk\]
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question_answer 19) When a satellite is revolving around the earth having radius r, then the escape velocity on the satellite will be:
A)
\[\sqrt{2gR}\]
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B)
\[\sqrt{gR}\]
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C)
\[\sqrt{\frac{GR}{2}}\]
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D)
\[g{{R}^{2}}\]
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question_answer 20) The weight of an aeroplane flying in air is balanced by:
A)
pressure difference between upper and lower surface of the wings
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B)
up thrust of the air volume on the plane
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C)
vertical component of the thrust
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D)
force due to reaction of gases
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question_answer 21) Which one of the following has the greater conductance?
A)
Silicon
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B)
Cuprous oxide
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C)
Germanium
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D)
Galium arsenide
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question_answer 22) If proton are shot perpendicular to the magnetic field, then the proton will:
A)
continue to move in the same direction but will gain momentum
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B)
continue to move in opposite direction but will gain momentum
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C)
bend in an arc of circle
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D)
not to be enfluenced by magnetic field
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question_answer 23) If\[\alpha -\]particles describes a circular path of radius r in a magnetic field B. Then the radius of the circular path described by a proton of same energy in the same magnetic field:
A)
\[2r\]
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B)
\[\frac{r}{2}\]
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C)
\[\frac{r}{\sqrt{2}}\]
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D)
\[r\]
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question_answer 24) Which one of the following discovered cyclotron?
A)
Maxwell
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B)
Lawrence
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C)
Lewis
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D)
Bohr
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question_answer 25) Susceptibility of a magnetic substance is found to depend on temperature and the strength of the magnetising. Then the material will be:
A)
super conductor
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B)
paramagnet
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C)
diamagnet
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D)
ferromagnet
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question_answer 26) A 50 volt battery is joined across a\[10\,\Omega \] resistor of the current is 4.5 A, the internal resistance of the battery will be:
A)
\[1.1\,\Omega \]
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B)
\[2.2\,\Omega \]
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C)
\[0.5\,\Omega \]
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D)
\[5\,\Omega \]
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question_answer 27) If the length and area of cross-section of a conductor are doubled then its resistance will be:
A)
unchanged
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B)
halved
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C)
doubled
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D)
quadrupled
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question_answer 28) If the critical angle for total internal reflection from a medium to vacuum is\[30{}^\circ \]. Then the velocity of light in the medium will be:
A)
\[3\times {{10}^{8}}m/s\]
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B)
\[2\times {{10}^{8}}m/s\]
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C)
\[1.5\times {{10}^{8}}m/s\]
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D)
\[6\times {{10}^{8}}m/s\]
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question_answer 29) A source of sound is moving away from a stationary observer with, velocity\[{{\upsilon }_{s}}\]. Velocity of sound is\[\upsilon \]. If n is the pitch of the source of sound, then the apparent pitch of sound heard by observer will be:
A)
\[\left( \frac{\upsilon }{\upsilon +{{\upsilon }_{s}}} \right)n\]
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B)
\[\frac{(\upsilon +{{\upsilon }_{s}})n}{\upsilon }\]
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C)
\[\frac{{{\upsilon }_{n}}}{(\upsilon +{{\upsilon }_{s}})}\]
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D)
\[\frac{{{\upsilon }_{n}}}{(\upsilon -{{\upsilon }_{s}})}\]
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question_answer 30) When the waves \[{{y}_{1}}=a\sin \omega t\] and\[{{y}_{2}}=a\cos \omega t\] are superimposed then the resultant amplitude will be:
A)
\[a/\sqrt{2}\]
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B)
\[a\sqrt{2}\]
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C)
\[2a\]
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D)
\[a/2\]
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question_answer 31) We combined a convex lens of focal length\[{{f}_{1}}\]and concave lens of focal length\[{{f}_{2}}\]and their combined focal length was F. The combination of these lenses will be have like a concave lens, if:
A)
\[{{f}_{1}}\le {{f}_{2}}\]
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B)
\[{{f}_{1}}={{f}_{2}}\]
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C)
\[{{f}_{1}}<{{f}_{2}}\]
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D)
\[{{f}_{1}}>{{f}_{2}}\]
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question_answer 32) Light takes\[{{t}_{1}}\]sec to travel a distance\[x\,cm\]in vacuum and the same light takes\[{{t}_{2}}\]sec to travel \[10x\,cm\]in the medium, critical angle for the corresponding medium is:
A)
\[{{\sin }^{-1}}\left( \frac{10{{t}_{1}}}{{{t}_{2}}} \right)\]
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B)
\[{{\sin }^{-1}}\left( \frac{{{t}_{1}}}{10{{t}_{2}}} \right)\]
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C)
\[{{\sin }^{-1}}\left( \frac{{{t}_{2}}}{10{{t}_{1}}} \right)\]
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D)
\[{{\sin }^{-1}}\left( \frac{10{{t}_{2}}}{{{t}_{1}}} \right)\]
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question_answer 33) In a Fresenals bi-prism experiment the two position of lens give separation between the slits as 16 cm and 9 cm respectively. Then the actual separation will be:
A)
14 cm
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B)
24cm
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C)
6 cm
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D)
12 cm
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question_answer 34) Accroding to Weins law:
A)
\[{{\lambda }_{m}}T=\]constant
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B)
\[\frac{{{\lambda }_{m}}}{T}=\]constant
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C)
\[{{\lambda }_{m}}\sqrt{T}=\]constant
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D)
\[\frac{{{\lambda }_{m}}}{\sqrt{T}}=\]constant
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question_answer 35) At room temperature, the rms velocity of the molecules of a certain diatomic gas is found to be 1930 m/s. Then the gas will be:
A)
\[C{{l}_{2}}\]
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B)
\[{{O}_{2}}\]
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C)
\[{{F}_{2}}\]
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D)
\[{{H}_{2}}\]
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question_answer 36) A gas initially at\[18{}^\circ C\]is compressed adiabatically to one eight of its original volume. Then the temperature of the gas after compression is:
A)
\[395.4{}^\circ C\]
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B)
\[144{}^\circ C\]
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C)
\[887.4{}^\circ C\]
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D)
\[18{}^\circ C\]
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question_answer 37) The angular momentum of a body with mass \[m,\]moment of inertia and angular velocity\[\omega \] rad/sec will be equal to:
A)
\[I/{{\omega }^{2}}\]
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B)
\[I/\omega \]
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C)
\[I\omega \]
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D)
\[I{{\omega }^{2}}\]
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question_answer 38) Two simple harmonic motion of same amplitude are superimposed at right angles to each other. Then the particle will describe:
A)
straight line
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B)
parabola
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C)
ellipse
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D)
circis
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question_answer 39) If r represents the radius of the orbit of the satellite of mass m moving around planet of mass M, then the velocity of satellite v is obtained from the relation:
A)
\[\upsilon =\frac{GMm}{r}\]
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B)
\[\upsilon =\frac{Gm}{r}\]
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C)
\[{{\upsilon }^{2}}=\frac{Gm}{r}\]
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D)
\[\upsilon =\frac{Gm}{r}\]
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question_answer 40) A stone is dropped into a lake from a tower of 500 m height. The sound of splash will be heard after:
A)
11.5 sec
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B)
21 sec
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C)
5.75 sec
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D)
10 sec
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question_answer 41) In an n-type semiconductor, then which of the follwing is true?
A)
Electrons are minority carrier
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B)
Electrons are majority carrier
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C)
Protons are majority carrier
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D)
None of these
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question_answer 42) Light of two different frequencies whose photons have energies of 1 eV and 2.5 eV respectively, successively illuminate a metal whose work function is 0.5 eV. Then the ratio of the maximum speed of emitted electrons is:
A)
\[1:2\]
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B)
\[1:1\]
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C)
\[1:4\]
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D)
\[1:5\]
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question_answer 43) If a current of 1 A flows in 1 milli-second through a coil and the induced emf is 2 V, then the self inductance of the coil will be:
A)
\[2\times {{10}^{-3}}H\]
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B)
\[1\times {{10}^{3}}H\]
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C)
\[4\times {{10}^{3}}H\]
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D)
\[1\times {{10}^{-3}}H\]
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question_answer 44) The electrical conductivity of earth atmosphere increases with altitude due to:
A)
ionisation of atmosphere
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B)
refraction of atmosphere
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C)
reflection of atmosphere
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D)
radiation of atmosphere
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question_answer 45) Which one of following is true?
A)
\[Q=WV\]
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B)
\[WQ={{V}^{2}}\]
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C)
\[W=V\]
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D)
\[W=QV\]
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question_answer 46) A capacitor is charged to a potential of difference of 400 volt and its plates acquire charge of 0.2 coulomb. When the capacitor is discharged, the energy released, is:
A)
40J
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B)
20J
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C)
80J
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D)
60J
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question_answer 47) Which one of the following colour has the least speed in glass?
A)
White
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B)
Violet
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C)
Black
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D)
Red
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question_answer 48) In Youngs double slit experiment, die separation between the slits is halved and the distance between the slit and screen is doubled, then the fringe width will:
A)
remain same
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B)
be quadrupled
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C)
be doubled
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D)
be halved
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question_answer 49) The radio transmitter operates on a wavelength of 1500 m. The frequency corresponding to this wavelength will be:
A)
50 kHz
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B)
100 kHz
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C)
500 kHz
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D)
200 kHz
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question_answer 50) In an open pipe of length\[l\]vibrates in fundamental mode, then pressure vibration is maximum at:
A)
one third from end of pipe
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B)
one fourth then the ends
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C)
end of the pipe
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D)
middle of the pipe
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question_answer 51) \[A{{g}_{2}}O+{{H}_{2}}{{O}_{2}}\xrightarrow[{}]{{}}2Ag+{{H}_{2}}O+{{O}_{2}}\] In the above reaction\[{{H}_{2}}{{O}_{2}}\]acts as a:
A)
oxidising agent
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B)
reducing agent
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C)
bleaching agent
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D)
none of the above
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question_answer 52) The value of azimuthal quantum number\[(l)\]is 2 then the value of principal quantum number \[(n)\]is:
A)
2
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B)
3
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C)
4
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D)
5
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question_answer 53) For 14 g of CO the wrong statement is:
A)
it occupies 2.24 litres at NTP
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B)
it corresponds to\[\frac{1}{2}\]mole of CO
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C)
it corresponds to same mole of CO and nitrogen gas
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D)
it corresponds to\[3.01\times {{10}^{23}}\] molecules of CO
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question_answer 54) The formula of malachite ore is:
A)
\[F{{e}_{3}}{{O}_{4}}\]
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B)
\[M{{n}_{3}}{{O}_{4}}\]
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C)
\[NiAs\]
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D)
\[Cu{{(OH)}_{2}}CuC{{O}_{3}}\]
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question_answer 55) The IUPAC name of\[Ni{{(CO)}_{4}}\]is:
A)
tetra carbonyl nickelate\[(O)\]
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B)
tetro carbonyl nickel\[(II)\]
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C)
tetra carbonyl nickel \[(O)\]
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D)
tetra carbonyl nickelate\[(II)\]
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question_answer 56) The dissociation values of four acids are as follows which of the above value is stands for strongest acid:
A)
\[2\times {{10}^{-4}}\]
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B)
\[2\times {{10}^{-2}}\]
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C)
\[3\times {{10}^{-4}}\]
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D)
\[0.02\times {{10}^{-1}}\]
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question_answer 57) Glucose on treatment with Tollens reagent produce silver mirror. This shows the presence of:
A)
alcoholic group
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B)
acidic group
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C)
aldehyde group
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D)
ketonic group
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question_answer 58) The random motion of colloidal particles in the dispersion medium is known as:
A)
Tyndall effect
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B)
Coagulation
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C)
Adsorption
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D)
Brownian movement
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question_answer 59) The conjugate base of\[O{{H}^{-}}\]is:
A)
\[{{H}^{+}}\]
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B)
\[{{H}_{3}}{{O}^{+}}\]
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C)
\[{{H}_{2}}O\]
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D)
\[{{O}^{2-}}\]
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question_answer 60) The valency of noble gases is:
A)
1
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B)
2
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C)
0
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D)
3
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question_answer 61) \[2{{N}_{2(g)}}+6{{H}_{2(g)}}\xrightarrow[{}]{{}}4N{{H}_{3(g)}}\] what is the enthalpy of the above reaction when the enthalpy formation of ammonia is\[-46kJ\text{ }mo{{l}^{-1}}\]:
A)
184 kJ
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B)
\[-184kJ\]
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C)
46 kJ
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D)
\[-46kJ\]
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question_answer 62) Zwitter ion is:
A)
ammonium acetate
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B)
urea
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C)
glycine
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D)
RNA
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question_answer 63) On palladium the adsorption of hydrogen is known as:
A)
reduction
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B)
hydrogenation
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C)
occlusion
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D)
dehydrogenation
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question_answer 64) The hardness of water is estimated by:
A)
distillation method
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B)
EDTA method
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C)
conductivity method
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D)
trimetric method
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question_answer 65) The orthophosphoric acid is a:
A)
tribasic acid
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B)
monobasic acid
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C)
tetrabasic acid
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D)
dibasic acid
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question_answer 66) The mass of one mole of electron is:
A)
0.55 mg
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B)
0.95 mg
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C)
1.005 mg
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D)
\[9.1\times {{10}^{-28}}mg\]
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question_answer 67) At equilibrium, the Gibbs free energy for a reaction is:
A)
\[-ve\]
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B)
\[+ve\]
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C)
zero
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D)
none of these
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question_answer 68) Paracetamol is used as an:
A)
antibiotic
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B)
antimalarial
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C)
antipyretic
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D)
arsenical
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question_answer 69) The product obtained by the reaction of glucose and bromine water is:
A)
gluconic acid
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B)
glucaric acid
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C)
glucose bromide
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D)
bromoglucose
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question_answer 70) The V.D. of a gas is 11.2. The volume occupied by one gm of the gas at STP is:
A)
1.0 litre
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B)
11.2 litre
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C)
22.4 litre
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D)
none of these
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question_answer 71) The oxidation number of P in\[M{{g}_{2}}{{P}_{2}}{{O}_{7}}\]is:
A)
\[+2\]
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B)
\[+5\]
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C)
\[-3\]
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D)
\[+3\]
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question_answer 72) The compound does not react with chlorine in dark is:
A)
\[{{C}_{2}}{{H}_{2}}\]
done
clear
B)
\[{{C}_{2}}{{H}_{4}}\]
done
clear
C)
\[C{{H}_{3}}CHO\]
done
clear
D)
\[C{{H}_{4}}\]
done
clear
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question_answer 73) The pH of boiling water (373K) is:
A)
1
done
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B)
6
done
clear
C)
8
done
clear
D)
10
done
clear
View Answer play_arrow
question_answer 74) In a first order reaction 25% reactant decomposed in 40.5 minutes. The rate constant of the reaction is:
A)
\[7.11\times {{10}^{-3}}\]minute
done
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B)
\[14.22\times {{10}^{-3}}\]minute
done
clear
C)
\[7.11\times {{10}^{-6}}\]minute
done
clear
D)
\[14.22\times {{10}^{-6}}\]minute
done
clear
View Answer play_arrow
question_answer 75) The carbohydrate which is an essential constituent of plant cell is:
A)
sucrose
done
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B)
starch
done
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C)
cellulose
done
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D)
vitamins
done
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question_answer 76) Natural rubber is a polymer of:
A)
cis-isoprene
done
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B)
trans-isoprene
done
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C)
both [a] arid [b]
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 77) On heating which of the following compound does not produce\[N{{O}_{2}}\]:
A)
\[AgN{{O}_{3}}\]
done
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B)
\[Cu{{(N{{O}_{3}})}_{2}}\]
done
clear
C)
\[LiN{{O}_{3}}\]
done
clear
D)
\[Pb{{(N{{O}_{3}})}_{2}}\]
done
clear
View Answer play_arrow
question_answer 78) Froth floatation process is used for the concentration of:
A)
amalgams
done
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B)
chloride ores
done
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C)
oxide ores
done
clear
D)
sulphide ores
done
clear
View Answer play_arrow
question_answer 79) The least water soluble compound is:
A)
acetone
done
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B)
acetaldehyde
done
clear
C)
lignite
done
clear
D)
benzophenone
done
clear
View Answer play_arrow
question_answer 80) The compound having maximum carbon percentage is:
A)
peat
done
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B)
bituminous
done
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C)
lignite
done
clear
D)
anthracite
done
clear
View Answer play_arrow
question_answer 81) A radiocative isotope has half life of 10 years. After 20 years the remaining amount is:
A)
zero
done
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B)
25
done
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C)
12.5
done
clear
D)
6.25
done
clear
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question_answer 82) The compound which is not used for obtaining iodoform is:
A)
acetaldehyde
done
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B)
acetone
done
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C)
ethanol
done
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D)
methanol
done
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View Answer play_arrow
question_answer 83) The increasing order of reducing power of the halogen acid is:
A)
\[HCl<HBr<HF<HI\]
done
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B)
\[HF<HCl<HBr<HI\]
done
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C)
\[HI<HBr<HCl<HF\]
done
clear
D)
\[HBr<HCl<HF<HI\]
done
clear
View Answer play_arrow
question_answer 84) The compound represents phosgene is:
A)
phosphine
done
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B)
phosphorous trichloride
done
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C)
carbonyl chloride
done
clear
D)
phosphorous oxychloride
done
clear
View Answer play_arrow
question_answer 85) At\[27{}^\circ C\]the kinetic energy of an ideal monoatomic gas is:
A)
300K
done
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B)
900K
done
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C)
600K
done
clear
D)
1200K
done
clear
View Answer play_arrow
question_answer 86) \[CH=CH+{{H}_{2}}O\xrightarrow[{}]{{{H}_{2}}S{{O}_{4}}+HgS{{O}_{4}}}X\] X is identified as
A)
ketone
done
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B)
ethanol
done
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C)
acetaldehyde
done
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D)
propionaldehyde
done
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question_answer 87) A hydrocarbon contains 20% hydrogen and 80% carbon. The empirical formula is:
A)
\[C{{H}_{4}}\]
done
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B)
\[C{{H}_{3}}\]
done
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C)
\[C{{H}_{2}}\]
done
clear
D)
\[CH\]
done
clear
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question_answer 88) Benzene and chlorine reacts to produce benzene hexa chloride in presence of:
A)
\[AlC{{l}_{3}}\]
done
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B)
sun light
done
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C)
\[ZnC{{l}_{2}}\]
done
clear
D)
dark
done
clear
View Answer play_arrow
question_answer 89) Yellow ammonium sulphide is:
A)
\[{{(N{{H}_{4}})}_{2}}{{S}_{8}}\]
done
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B)
\[{{(N{{H}_{4}})}_{2}}{{S}_{4}}\]
done
clear
C)
\[{{(N{{H}_{4}})}_{2}}S\]
done
clear
D)
\[{{(N{{H}_{4}})}_{2}}{{S}_{2}}\]
done
clear
View Answer play_arrow
question_answer 90) At room temperature the solid compound is:
A)
\[C{{O}_{2}}\]
done
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B)
\[Si{{O}_{2}}\]
done
clear
C)
\[N{{O}_{2}}\]
done
clear
D)
\[S{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 91) The total number of protons in 10 g of\[CaC{{O}_{3}}\]is \[[{{N}_{o}}=6.023\times {{10}^{23}}]\]:
A)
\[1.50\times {{10}^{24}}\]
done
clear
B)
\[2.04\times {{10}^{24}}\]
done
clear
C)
\[3.01\times {{10}^{24}}\]
done
clear
D)
\[4.09\times {{10}^{24}}\]
done
clear
View Answer play_arrow
question_answer 92) When an electron is revolving in stationary orbit?
A)
they become stationary
done
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B)
there is increase in energy
done
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C)
they are gaining kinetic energy
done
clear
D)
there is no change in energy level
done
clear
View Answer play_arrow
question_answer 93) The strongest forces are:
A)
ion-dipole forces
done
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B)
dipole-dipole forces
done
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C)
dipole induced dipole forces
done
clear
D)
ion-ion interaction
done
clear
View Answer play_arrow
question_answer 94) A chemical process is carried out in a thermostat maintained at\[25{}^\circ C,\]it is known as:
A)
isothermal
done
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B)
isobaric
done
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C)
adiabatic
done
clear
D)
isoentropic
done
clear
View Answer play_arrow
question_answer 95) In 0.02 M solution of perchloric acid at 289 K the sum of pH and \[pOH\] is:
A)
7
done
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B)
14
done
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C)
10
done
clear
D)
12
done
clear
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question_answer 96) Ice \[\] water when pressure is applied to the above equilibrium system then:
A)
water will evaporate
done
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B)
equilibrium will not be formed
done
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C)
more ice will be formed
done
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D)
more water will be formed
done
clear
View Answer play_arrow
question_answer 97) The rate constant of a reaction depends on:
A)
weight
done
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B)
time
done
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C)
temperature
done
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D)
mass
done
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View Answer play_arrow
question_answer 98) The normality of 10% \[C{{H}_{3}}COOH\] is:
A)
10 N
done
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B)
0.83 N
done
clear
C)
1 N
done
clear
D)
1.66N
done
clear
View Answer play_arrow
question_answer 99) Mesooxalic acid is formed when glycerol reacts with:
A)
\[KMn{{O}_{4}}\]
done
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B)
\[Bi{{(N{{O}_{3}})}_{2}}\]
done
clear
C)
dil \[HN{{O}_{3}}\]
done
clear
D)
\[{{H}_{2}}{{O}_{2}}+FeS{{O}_{4}}\]
done
clear
View Answer play_arrow
question_answer 100) The element responsible for oxidation of water to\[{{O}_{2}}\]in biological process:
A)
\[Cu\]
done
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B)
\[Mo\]
done
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C)
\[Fe\]
done
clear
D)
\[Mn\]
done
clear
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question_answer 101) Which of the following is a cyanophage?
A)
S-13
done
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B)
LPP-1
done
clear
C)
\[\phi \times 174\]
done
clear
D)
SV 50
done
clear
View Answer play_arrow
question_answer 102) Influenza is caused by:
A)
virus
done
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B)
bacteria
done
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C)
viroid
done
clear
D)
fungus
done
clear
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question_answer 103) Hormqgonia are the vegetative reproductive structures of:
A)
Spirogyra
done
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B)
Oscillatona
done
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C)
Yeast
done
clear
D)
Chlamydomonas
done
clear
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question_answer 104) How many sub-phyla are present in tracheata according to Tippos classification of kingdom plante?
A)
3
done
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B)
6
done
clear
C)
4
done
clear
D)
5
done
clear
View Answer play_arrow
question_answer 105) Which of the following cell organelle is rich in hydrolytic enzymes?
A)
Ribosomes
done
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B)
Mitochondria
done
clear
C)
Lysosomes
done
clear
D)
Coleoptile
done
clear
View Answer play_arrow
question_answer 106) The persistant nucellus is called:
A)
perisperm
done
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B)
periderm
done
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C)
seedcoat
done
clear
D)
coleoptile
done
clear
View Answer play_arrow
question_answer 107) Induced fit theory of enzyme action was proposed by:
A)
Fischer
done
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B)
Koshland
done
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C)
Summer
done
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D)
Mitchell
done
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View Answer play_arrow
question_answer 108) The casparian strips are present in cells of:
A)
periderm
done
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B)
epidermis
done
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C)
hypodermis
done
clear
D)
endodermis
done
clear
View Answer play_arrow
question_answer 109) Heterothallism was discovered by:
A)
Alexopolous
done
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B)
Blakeslee
done
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C)
Machlies
done
clear
D)
Bessey
done
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View Answer play_arrow
question_answer 110) Bryophytes lack true:
A)
root
done
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B)
stem
done
clear
C)
leaf
done
clear
D)
all the above
done
clear
View Answer play_arrow
question_answer 111) Haustorial root is found in:
A)
Cuscuta
done
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B)
Orchid
done
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C)
Mays
done
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D)
Ficus
done
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question_answer 112) In stem of dicots, fascicular cambium is also called as:
A)
lateral meristem
done
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B)
secondary meristem
done
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C)
apical meristem
done
clear
D)
intercalary meristem
done
clear
View Answer play_arrow
question_answer 113) Cyathium is a type of:
A)
alga
done
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B)
fungus
done
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C)
bactrium
done
clear
D)
inflorescence
done
clear
View Answer play_arrow
question_answer 114) Which purine base is found in RNA?
A)
Guanine
done
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B)
Cytosine
done
clear
C)
Thymine
done
clear
D)
Uracil
done
clear
View Answer play_arrow
question_answer 115) When a natural predator is used to control other organism, this process is called:
A)
Natural control
done
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B)
Biological control
done
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C)
Artificial control
done
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D)
Genetically modified control
done
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View Answer play_arrow
question_answer 116) The 10% energy transfer law in a food chain was proposed by:
A)
Tansley
done
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B)
Lindmann
done
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C)
Kormondy
done
clear
D)
Ambust
done
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View Answer play_arrow
question_answer 117) Which of the following supports the growth of planktons and littoral vegetation?
A)
Eutrophic lake
done
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B)
Oligotrophic lake
done
clear
C)
a and b both
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 118) Green house gases are:
A)
\[C{{O}_{2}}\]
done
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B)
\[S{{O}_{2}}\]
done
clear
C)
\[C{{O}_{2}}\]and\[S{{O}_{2}}\]
done
clear
D)
\[C{{O}_{2}},CFC,C{{H}_{4}}\]
done
clear
View Answer play_arrow
question_answer 119) A good example of an auxin herbicide is:
A)
\[NAA\]
done
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B)
\[IBA\]
done
clear
C)
\[IAA\]
done
clear
D)
2,4-D
done
clear
View Answer play_arrow
question_answer 120) The soil water available for absorption by plant roots is:
A)
rainwater
done
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B)
capillary water
done
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C)
chemically bound water
done
clear
D)
gravitational water
done
clear
View Answer play_arrow
question_answer 121) In prokaryotes, the geiietic material is:
A)
linear DNA with histones
done
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B)
circular DNA with histones
done
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C)
linear DNA wihtout histones
done
clear
D)
circular DNA without histones
done
clear
View Answer play_arrow
question_answer 122) Which of the organ is known as organ suigeneris?
A)
Rhizoid
done
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B)
Rhizome
done
clear
C)
Rhizophore
done
clear
D)
RNA
done
clear
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question_answer 123) A cell is kept in a solution for sometimes, when it bursts. The solution should be:
A)
isotonic
done
clear
B)
hypertonic
done
clear
C)
hypotonic
done
clear
D)
monotonic
done
clear
View Answer play_arrow
question_answer 124) Which of the following statement is correct regarding Cycas?
A)
Singel sporophyll bears male and female sex organs
done
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B)
Single cone bears male and female sporophylls
done
clear
C)
Male and female sex organs are present on same plant
done
clear
D)
Male cone and megasporophylls occur on separate plants
done
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View Answer play_arrow
question_answer 125) In angiosperms, the endosperm is:
A)
polyploid
done
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B)
triploid
done
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C)
diploid
done
clear
D)
haploid
done
clear
View Answer play_arrow
question_answer 126) Mendels dihybrid cross ratio is:
A)
\[1:2:1\]
done
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B)
\[12:3:1\]
done
clear
C)
\[9:3:3:1\]
done
clear
D)
\[9:2:2:1\]
done
clear
View Answer play_arrow
question_answer 127) Teminism means:
A)
translation
done
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B)
transcription
done
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C)
transduction
done
clear
D)
reverse transcription
done
clear
View Answer play_arrow
question_answer 128) Genetic engineering is releated with:
A)
euthenics
done
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B)
euphonic
done
clear
C)
eugenics
done
clear
D)
all the above
done
clear
View Answer play_arrow
question_answer 129) Cell membrane is..........to ions:
A)
permeable
done
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B)
differentially permeable
done
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C)
semipermeable
done
clear
D)
impermeable
done
clear
View Answer play_arrow
question_answer 130) The process of replication in plasmid DNA, other than initiation is controlled by:
A)
bacterial gene
done
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B)
mitochondrial gene
done
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C)
palsma gene
done
clear
D)
nuclear gene
done
clear
View Answer play_arrow
question_answer 131) Which of the following type of RNA molecule is essential for protein synthesis?
A)
\[m-RNA\]
done
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B)
\[f-RNA\]
done
clear
C)
\[r-RNA\]
done
clear
D)
all the above
done
clear
View Answer play_arrow
question_answer 132) Translocation of minerals takes place through:
A)
phloem
done
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B)
xylem
done
clear
C)
cambium
done
clear
D)
wood parenchyma
done
clear
View Answer play_arrow
question_answer 133) Salmon fish is:
A)
anadromous
done
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B)
catadrpmous
done
clear
C)
neocoratodromous
done
clear
D)
both (a) and (b)
done
clear
View Answer play_arrow
question_answer 134) Which of the following alga is useful is sewage treatment plants?
A)
Euglena
done
clear
B)
Chlamydomonas
done
clear
C)
Nostoc
done
clear
D)
Both (a) and (b)
done
clear
View Answer play_arrow
question_answer 135) Which of the following is an example of foliose lichen?
A)
Usnea
done
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B)
Cladonia
done
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C)
Lecanora
done
clear
D)
Parmelia
done
clear
View Answer play_arrow
question_answer 136) Removal of anthers at the time of plant breeding is called:
A)
emasculation
done
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B)
antherris
done
clear
C)
pollination
done
clear
D)
fertilization
done
clear
View Answer play_arrow
question_answer 137) Replum is found in family:
A)
Malvaceae
done
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B)
Brassicaceae
done
clear
C)
Rosaceae
done
clear
D)
Cucrubitaceae
done
clear
View Answer play_arrow
question_answer 138) In a moss plant the archegonial cluster are enclosed with leaves called:
A)
seta
done
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B)
theca
done
clear
C)
perchaetium
done
clear
D)
perigynium
done
clear
View Answer play_arrow
question_answer 139) The time required from pollination to fertilization in Finns is:
A)
6 months
done
clear
B)
12 months
done
clear
C)
3 months
done
clear
D)
24 months
done
clear
View Answer play_arrow
question_answer 140) The ovary is inferior in:
A)
epigynous condition
done
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B)
hypogynous condition
done
clear
C)
perigynous condition
done
clear
D)
cleistogamous condition
done
clear
View Answer play_arrow
question_answer 141) Cleistogamy is found in:
A)
Pisum sativum
done
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B)
Commelina benghalensis
done
clear
C)
Rosa indica
done
clear
D)
Brassica campestris
done
clear
View Answer play_arrow
question_answer 142) Iron containing protein is called:
A)
purines
done
clear
B)
pyremidines
done
clear
C)
ferredoxin
done
clear
D)
ferroproteins
done
clear
View Answer play_arrow
question_answer 143) Which of the following combination of gases is suitable for fruit ripening?
A)
80%\[C{{O}_{2}}\]and 20%\[{{O}_{2}}\]
done
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B)
80%\[{{C}_{2}}{{H}_{4}}\]and 20%\[C{{O}_{2}}\]
done
clear
C)
80%\[{{O}_{2}}\]and 20%\[C{{O}_{2}}\]
done
clear
D)
80%\[C{{O}_{2}}\]and 20%)\[{{C}_{2}}{{H}_{2}}\]
done
clear
View Answer play_arrow
question_answer 144) Cornea trarisplantation is very popular because:
A)
it is easy process
done
clear
B)
it is everlasting
done
clear
C)
it does not link blood supply and immune system
done
clear
D)
it links blood supply and immune system
done
clear
View Answer play_arrow
question_answer 145) Species characterized by circular or looped geographical distribution are known as:
A)
sibling species
done
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B)
sub species
done
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C)
ring species
done
clear
D)
neo species
done
clear
View Answer play_arrow
question_answer 146) Soil is a mixture of:
A)
sand and humus
done
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B)
sand and clay
done
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C)
sand, clay and humus
done
clear
D)
clay and humus
done
clear
View Answer play_arrow
question_answer 147) Vitelline glands are found in:
A)
Fasciola
done
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B)
Taenia
done
clear
C)
Phcritima
done
clear
D)
Ascaris
done
clear
View Answer play_arrow
question_answer 148) Ecological niche of a species means:
A)
specific function of a species
done
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B)
specific place where the organism lives
done
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C)
specific number of populations
done
clear
D)
habitat and specific function of a species
done
clear
View Answer play_arrow
question_answer 149) The function of contractile vacuole in Protozoa is:
A)
reproduction
done
clear
B)
osmoregulation
done
clear
C)
digestion
done
clear
D)
locomotion
done
clear
View Answer play_arrow
question_answer 150) Earthworm cannot undergo self fertilization because of:
A)
protogyny
done
clear
B)
protandry
done
clear
C)
unisexual
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 151) Centromere is a part of:
A)
mitochondria
done
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B)
chloroplast
done
clear
C)
chromosome
done
clear
D)
nucleus
done
clear
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question_answer 152) Which of the following is made up of a single bone in mammals?
A)
Upper jaw
done
clear
B)
Hyoid
done
clear
C)
Zygomatic arch
done
clear
D)
Dentary
done
clear
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question_answer 153) In which of the following stage, the chromosome is thin and like a long thread?
A)
Leptotene
done
clear
B)
Zygotene
done
clear
C)
Pachytene
done
clear
D)
Diplotene
done
clear
View Answer play_arrow
question_answer 154) Cerebellum of brain is concerned with a:
A)
contraction of voluntary muscles
done
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B)
co-ordinating and regulating tone
done
clear
C)
maintain posture, orientation and equilibrium of body
done
clear
D)
all the above
done
clear
View Answer play_arrow
question_answer 155) Graffian follicles are formed from:
A)
columner epithelium of testes
done
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B)
germinal epithelium of testes
done
clear
C)
assembly of ribosomes of testes
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 156) The hormone GIP (gastric inhibitory peptide) is secreted by:
A)
small intestine
done
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B)
stomach
done
clear
C)
ileum
done
clear
D)
duodenum
done
clear
View Answer play_arrow
question_answer 157) When 1500 ml air is in the lungs, it is called:
A)
inspiratory reserve volume
done
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B)
tidal volume
done
clear
C)
vital capacity
done
clear
D)
residual volume
done
clear
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question_answer 158) Which developmental structure in mammalian embryo is regarded as phyletic?
A)
Gill pouches
done
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B)
Heart
done
clear
C)
Kidney
done
clear
D)
Liver
done
clear
View Answer play_arrow
question_answer 159) Which of the following carries glucose from digestive tract to liver?
A)
Pulmonary vein
done
clear
B)
Renal portal system
done
clear
C)
Hepatic portal vein
done
clear
D)
Pulmonary artery
done
clear
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question_answer 160) to form haemoglobin haem\[(F{{e}^{++}})\]combine with:
A)
plasma
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B)
porphyrin
done
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C)
cytochrome
done
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D)
creatinine
done
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question_answer 161) Muscular wall of the heart is covered by:
A)
epicardium
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B)
epthelium
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C)
epinephrium
done
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D)
epithecium
done
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question_answer 162) In micturition:
A)
urethra contracts
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B)
urethra relax
done
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C)
ureter contracts
done
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D)
ureter relax
done
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question_answer 163) During muscles contraction actin and myosin form:
A)
actoplasm
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B)
actinomycin
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C)
actimycin
done
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D)
hyoactin
done
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question_answer 164) Pellagra is the disease caused by the deficiency of:
A)
folic acid
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B)
riboflavin
done
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C)
niacin
done
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D)
cynocobalamine
done
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question_answer 165) Marriage between normal visioned man and colourblind woman will produce:
A)
colourblind son and carrier daughter
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B)
colourblind daughter and normal son
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C)
50% colourblind daughters and 50% colourblind son
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D)
all normal vision children
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question_answer 166) The vagus nerve is the cranial nerve numbering:
A)
5th
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B)
6th
done
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C)
9th
done
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D)
10th
done
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question_answer 167) The final hormonal stimulus leading to ovulation in human is provided by:
A)
FSH
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B)
TSH
done
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C)
LH
done
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D)
estrogen
done
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question_answer 168) Honey is:
A)
acidic
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B)
alkaline
done
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C)
salty
done
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D)
neutral
done
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question_answer 169) Fatty liver syndrome is due to:
A)
cigarettes
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B)
alcohol
done
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C)
drugs
done
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D)
sugars
done
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question_answer 170) The earliest sites where somewhat civilized man first appeared is:
A)
around capstan and mediternanean sea
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B)
around Indus valley
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C)
around ganga ghat
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D)
around gulf
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question_answer 171) Silkworm silk is the product of:
A)
salivary gland of adult
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B)
salivary gland of larvae
done
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C)
salivary gland of pupa
done
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D)
salivary gland of egg cells
done
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question_answer 172) First heart sound is:
A)
lubb due to closure of AV valves
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B)
lubb due to closure of spiral valves
done
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C)
dupp due to closure of AV valves
done
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D)
dupp due to closure of spiral valves
done
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question_answer 173) Gaseous mixture used by Stanley Miller for synthesis of amino acids through heat and electric discharge included:
A)
methane, nitrogen, hydrogen and water vapours
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B)
methane, hydrogen, oxygen and water vapours
done
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C)
methane, ammonia, nitrogen and water vapours
done
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D)
methane, ammonia, hydrogen and water vapours
done
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question_answer 174) In pea, the ovule is:
A)
atropous
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B)
hemianatropous
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C)
campylotropous
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D)
circinotropous
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question_answer 175) Which of the following plants root is medicinal and leaves, flowers and fruits are edible as vegetable?
A)
Helianthus annus
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B)
Cue urbita maxima
done
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C)
Solanum tuberos.um
done
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D)
Holostemma adakodien
done
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question_answer 176) Humus is:
A)
chemical fertilizer
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B)
compost manure
done
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C)
dead decayed organic matter
done
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D)
living organic matter and chemicals
done
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question_answer 177) Active transport requires;
A)
supply of energy
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B)
only xylem vessels
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C)
only phloem elements
done
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D)
total shoot system
done
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question_answer 178) In\[{{C}_{4}}\]plants,\[C{{O}_{2}}\]combines with:
A)
phosphoglyceraldehyde
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B)
phosphoglyceric acid
done
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C)
phosphoenol pyruvate
done
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D)
none of the above
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question_answer 179) Water potential and osmotic potential of pure water is:
A)
zero and zero
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B)
zero and 100
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C)
100 and zero
done
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D)
100 and 100
done
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question_answer 180) Phytochrome becomes active in:
A)
green light
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B)
red light
done
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C)
blue light
done
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D)
white light
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question_answer 181) Temperature changes, in the environment, affect most of the animals, which, are:
A)
homiothermic
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B)
isothermic
done
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C)
poikilothermic
done
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D)
endothermic
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question_answer 182) Hydra recognises its prey by:
A)
special organs
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B)
tentacles
done
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C)
stimulus
done
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D)
nematocysts
done
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question_answer 183) The amino acid metabolized by the brain is:
A)
Glutamic acid
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B)
Glutamme
done
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C)
Aspartine
done
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D)
Histidine
done
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question_answer 184) Gynecomastia is found in:
A)
Downs syndrome
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B)
Klinefelters syndrome
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C)
Pataus syndrome
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D)
Turners syndrome
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question_answer 185) Angulo splenial bone is found in:
A)
lower jaw of rabbit
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B)
lower jaw of frog
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C)
lower jaw of cow
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D)
lower jaw of snake
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question_answer 186) Which among following in not a class of phylum mollusca?
A)
Gastropoda
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B)
Scaphopoda
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C)
Cephalopoda
done
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D)
Hexapoda
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question_answer 187) Larva of house fly lacks:
A)
spiracles
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B)
wings
done
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C)
Both a, b
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D)
eyes
done
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question_answer 188) Olfactory organs of a snake is:
A)
Johtisons organ
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B)
Johansburgs organ
done
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C)
Jacobsonss organ
done
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D)
Jacksons organ
done
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question_answer 189) Aristotless lantern is characteristic of:
A)
Holothuroidea
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B)
Epinuroidea
done
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C)
EAinoidea
done
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D)
all the above
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question_answer 190) Pectin is:
A)
homopoloysaccharide
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B)
heteropolysaccharide
done
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C)
glycopolysaccharide
done
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D)
glucopolysaccharide
done
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question_answer 191) E. coli with complete radioactive medium DNA was allowed to replicate in no radioactive medium for two generation. Percentage of bacteria with radioactive strand will be:
A)
100%
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B)
50%
done
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C)
25%
done
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D)
20%
done
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question_answer 192) How much energy is transferred from one trophic level to the another?
A)
5%
done
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B)
15%
done
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C)
10%
done
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D)
20%
done
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question_answer 193) Which of the following is both exocrine and endocrine gland?
A)
Pancreas
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B)
Liver
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C)
Pituitary
done
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D)
Thyroid
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question_answer 194) Breathing is controlled by:
A)
trachea
done
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B)
lung
done
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C)
buccal cavity
done
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D)
medulla oblongata
done
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question_answer 195) Gynandromorphs are:
A)
half male and half female
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B)
neither male nor female
done
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C)
males only
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D)
females only
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question_answer 196) Recapitulation theory was given by:
A)
Hooker
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B)
Haeckel
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C)
Hooke
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D)
Haywood
done
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question_answer 197) The number of autosomes in human female is:
A)
26 pairs
done
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B)
22 pairs
done
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C)
24 pairs
done
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D)
21 pairs
done
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question_answer 198) What is left when bath sponge is dried up:
A)
spongin fibres
done
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B)
spicule
done
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C)
bones
done
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D)
cartilage
done
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question_answer 199) Growth movement in response to light is called:
A)
photoperiodism
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B)
photosynthesis
done
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C)
photophosphorylation
done
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D)
phototropism
done
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question_answer 200) Pheritima posthuma is farmers friend because:
A)
It is very delicious
done
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B)
it is very naughty
done
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C)
it makes soil porous
done
clear
D)
it eats all the insects of soil
done
clear
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