Solved papers for MGIMS WARDHA MGIMS WARDHA Solved Paper-2005

MGIMS WARDHA Solved Paper-2005 Total Questions - 180

1) If C and R denote capacity and resistance, the dimensions of C R are :

A)

\[{{M}^{0}}{{L}^{0}}T\]

B)

\[M{{L}^{0}}T\]

C)

\[{{M}^{0}}{{L}^{0}}{{T}^{0}}\]

D)

not expressible in terms of M, L and T

View Answer
2) An arrow is shot into in. its range is 200 m and its time of flight is 5 s. If \[g=10\,m/{{s}^{2}},\]then the   horizontal component of velocity of the arrow is :

A)

12.5 m/s

B)

250 m/s

C)

31.25 m/s

D)

40 m/s

View Answer
3) A force of 49 newton is just able to move a block of wood weighting 10 kg on a rough horizontal surface- Its coefficient of friction is:

A)

1

B)

0.7

C)

0.5

D)

zero

View Answer
4) Two bodies of masses m and 2 m have equal kinetic energies. The ratio of their linear momenta is :

A)

\[1\]

B)

\[\frac{1}{2}\]

C)

\[0.5\]

D)

\[2\]

View Answer
5) A ball of mass ' m' elastically collides with a wall with velocity \['\upsilon '\] then change in its momentum is equal to :

A)

\[2m\]

B)

\[2\,m\upsilon \]

C)

\[+8m\upsilon \]

D)

Zero

View Answer
6) A solid sphere is rotating about a diameter at     an angular velocity \[\omega .\] If it cools so that its radius reduces to\[\frac{1}{n}\] of its original value, its angular velocity of becomes :

A)

\[\frac{\omega }{n}\]

B)

\[\frac{\omega }{{{n}^{2}}}\]

C)

\[n\omega \]

D)

\[{{n}^{2}}\omega \]

View Answer
7) Two satellites A and B go around planet P in circular orbits having radius 4R and R respectively. If the speed of satellite A is \[3\upsilon \] then the speed of satellite B will be :

A)

\[6\upsilon \]

B)

\[9\upsilon \]

C)

\[3\upsilon \]

D)

none of these

View Answer
8) When a drop splits up into a number of drops, then :

A)

Area increases

B)

Volume increases

C)

Energy is absorbed

D)

Energy is liberated

View Answer
9) A 5maluminium wire \[(\gamma =7\times {{10}^{10}}N/{{m}^{2}})\]of diameter 3mm supports a 40 kg mass. In order to have the same elongation in a copper wire \[(\gamma =12\times {{10}^{10}}N/{{m}^{2}})\] of the same length under the same weight, the diameter should be in mm :

A)

1.75

B)

2.0

C)

2:3

D)

5.0

View Answer
10) At which of the following temperature, the value of surface tension of water is minium?

A)

\[4{}^\circ C\]

B)

\[25{}^\circ C\]

C)

\[50{}^\circ C\]

D)

\[75{}^\circ C\]

View Answer
11) In isochoric process :

A)

\[\Delta \omega =0\]

B)

\[\Delta \omega =0\]

C)

\[\Delta a=0\]

D)

\[\Delta T=0\]

View Answer
12) If the temperature difference on the two sides                 of a wall increases from 100°C to 200°C, its thermal conductivity :

A)

remains unchanged

B)

is doubled

C)

is halned

D)

becomes four times

View Answer
13) Let there be four articles having colours blue, red, black and white. When they are heated together and allowed to cool, which article       will cool at the earliest?

A)

Blue

B)

Red

C)

Black

D)

White

View Answer
14) An ideal gas is taken through the cycle \[A\to B\to C\to A,\] as shown in figure. If the net heat supplied to the gas in the cycle is 5J, the work done by the gas in the process.\[C\to A\] A is :

A)

-5J

B)

-10J

C)

-15J

D)

-20J

View Answer
15) A piece of red glass when heated in dark to red hot state will appear to be :

A)

White

B)

Red

C)

Green

D)

Invisible

View Answer
16) The period of oscillation of a simple pendulum of constant length at surface of the earth is T. Its time period inside a mine will be :

A)

cannot be compared.

B)

equal to T

C)

less than T

D)

more than T

View Answer
17) A particle executing simple harmonic motion has a time peiod of 4 sec. After how much                internal of time from \[t=0\]will its displacement be half of its amplitude :

A)

\[\frac{1}{3}\]sec

B)

\[\frac{1}{2}\]sec

C)

\[\frac{2}{3}\] sec

D)

\[\frac{1}{6}\] sec

View Answer
18) A train approaches a stationary observer the velocity of train being\[\frac{1}{20}\]of the velocity of sound. A sharp blast is blown with the whistle of the engine at equal intervals of a second.         The interval between the successive blasts as heard by the observer?

A)

\[\frac{1}{20}\] sec

B)

\[\frac{1}{20}\] min

C)

\[\frac{19}{20}\] sec

D)

\[\frac{19}{20}\] min

View Answer
19) Which of the following equations represents a wave travelling along \[y\]-axis?

A)

\[y\] = A sin \[(x-\omega t)\]

B)

\[x\] = A sin \[(Ky-\omega t)\]

C)

\[y\] = A sin \[Ky\cos \omega t\]

D)

\[y\] = A cos\[Ky\sin \omega t\]

View Answer
20) The difference between soft and hard \[x\]-rays is of :

A)

velocity

B)

intensity

C)

frequency

D)

polarization

View Answer
21) The capacity of an isolated conducting sphere of radius R is proportional to :

A)

\[{{R}^{2}}\]

B)

\[\frac{1}{{{R}^{2}}}\]

C)

\[\frac{1}{R}\]

D)

\[R\]

View Answer
22) Two spheres of radii \[{{R}^{2}}\] and \[{{R}_{1}}\]respectively are charged and joined by a wire. The ratio of electric field of spheres is:

A)

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

B)

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

C)

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

D)

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

View Answer
23) If a positive charge is shifted from a low potential region to a high potential region, the electric potential energy :

A)

decreases

B)

increases

C)

remains the same

D)

may increase or decrease

View Answer
24) The equivalent resistance between A and B is :

A)

10 \[\Omega \]

B)

20 \[\Omega \]

C)

30 \[\Omega \]

D)

40\[\Omega \]

View Answer
25) An electrical cable of copper has just one wire of radius 9 mm. Its resistance is 5\[\Omega .\] the single wire of the cable is replaced by 6 different well insulated copper wires each of radius 3 mm. The total resistance of the cable will now be equal to :

A)

27\[\Omega \]

B)

90 \[\Omega \]

C)

4\[\Omega \]

D)

7.5 \[\Omega \]

View Answer
26) A current of 2 ampere flowing through a conductor produces 80 joule of heat in ten seconds. The resistance of the conductor is :

A)

0.5\[\Omega \]

B)

2\[\Omega \]

C)

4\[\Omega \]

D)

20\[\Omega \]

View Answer
27) A thermo electric refrigerator works on :

A)

Joule effect

B)

See back effect

C)

Peltier effect

D)

Thermionic effect

View Answer
28) A small circular flexible loop of wire of radius ' r' cories a current \[I.\] It is placed in a uniform magnetic field B. The tension in the loop will be doubled if :

A)

\[I.\] is doubled

B)

B is halved

C)

r is doubled

D)

both B and \[I.\] are doubled

View Answer
29) Two parallel wires carrying current in the same direction attract each other because of :

A)

potential difference between them

B)

mutual inductance between them

C)

electric force between them

D)

magnetic force between them

View Answer
30) A hydrogen atom is paramagnetic. A hydrogen molecule is :

A)

diamagnetic

B)

paramagnetic

C)

ferromagnetic

D)

none of these

View Answer
31) A galvanometer has resistance of 400\[\Omega \]and deflects full scale for current of 0.2 mA through it. The shunt resistance required to covert it into 3A ammeter is :

A)

0.027\[\Omega \]

B)

0.054\[\Omega \]

C)

0.0135\[\Omega \]

D)

none of these

View Answer
32) The power factor of a series LCR circuit when at resonance is :

A)

zero

B)

0.5

C)

1.0

D)

Depends on values of L, C and R

View Answer
33) For high frequency, capacitor offers :

A)

more resistance

B)

less resistance

C)

zero resistance

D)

none of these

View Answer
34) In an oscillating LC circuit the maximum                 charge on the capacitor is Q. The charge on the capacitor, when the energy is stored equally between the electric and magnetic field is :

A)

\[\frac{\theta }{2}\]

B)

\[\frac{\theta }{\sqrt{2}}\]

C)

\[\frac{\theta }{\sqrt{3}}\]

D)

\[\frac{\theta }{3}\]

View Answer
35) If \[{{\upsilon }_{g,}}{{\upsilon }_{x}}\]and \[{{\upsilon }_{m}}\] are the speeds of gamma rays X rays and micro waves respectively in vacuum then :

A)

\[{{\upsilon }_{g}}>{{\upsilon }_{m}}>{{\upsilon }_{x}}\]

B)

\[{{\upsilon }_{g}}>{{\upsilon }_{x}}>{{\upsilon }_{m}}\]

C)

\[{{\upsilon }_{g}}={{\upsilon }_{x}}={{\upsilon }_{m}}\]

D)

none of these

View Answer
36) A person standing in front of a mirror finds his image larger than himself. This implies that          the mirror is :

A)

convex

B)

parabolic

C)

plane

D)

convave

View Answer
37) For a telescope, larger be diameter of the objective lens :

A)

greater the resolving power

B)

smaller is the resolving power

C)

greater is the magnifying power

D)

smaller is the magnifying power

View Answer
38) If the critical angle for total internal reflection from medium to vacuum is 30°, the velocity of light in medium is :

A)

\[3\times {{10}^{8}}m/s\]

B)

\[1.5\times {{10}^{8}}m/s\]

C)

\[6\times {{10}^{8}}m/s\]

D)

\[\sqrt{3}\times {{10}^{8}}m/s\]

View Answer
39) The deviation is maximum for which colour:

A)

Violet

B)

Red

C)

Blue

D)

Green

View Answer
40) In single slit diffraction pattern :

A)

central fringe has neglight width than others

B)

all fringes are of same width

C)

central frings does not exist

D)

none of the above

View Answer
41) The relation between amplification factor\[(\mu ),\]      plate resistance\[({{r}_{p}}),\] and mutual conductance \[({{g}_{m}}),\]of a triode value is given by :

A)

\[\mu ={{r}_{p}}\times {{g}_{m}}\]

B)

\[{{r}_{p}}=\mu \times {{g}_{m}}\]

C)

\[{{g}_{m}}=\mu \times {{r}_{p}}\]

D)

none of these

View Answer
42) A light of wavelength 5000Å falls on a     sensitive plate with photo electric work                function 1.90 eV. Kinetic energy of the         emitted photo electrons will be : Given, \[h=6.62\times {{10}^{-34}}\]Joule-second)

A)

0.1 eV

B)

2 eV,

C)

0.581 eV

D)

1.581 eV

View Answer
43) Continuous emission spectrum, the emitted wavelength range depends upon :

A)

temperature of the source

B)

material of the source

C)

surface area of the source

D)

all of the above

View Answer
44) The emission of electrons is possible by :

A)

photo electric effect

B)

the mionic effect

C)

both (a) and (b)

D)

none of the above

View Answer
45) An electron and a proton are possessing same amount of kinetic energies. The de-Broglie wavelength is greater for :

A)

electron

B)

proton

C)

both same

D)

none of these

View Answer
46) In a mean life of radiactive sample :

A)

about\[\frac{1}{3}\] of substance disintefrates

B)

about \[\frac{3}{3}\]of the substance disintefrates

C)

about 90% of the substance disintefrates

D)

almost all the substance disintefrates

View Answer
47) For the stability of any nucleus :

A)

binding energy per nucleon will be more

B)

binding energy per nucleon will be less

C)

no. of electrons will be more

D)

none of these

View Answer
48) H the half-life of any sample of radioactive substance is 4 days, then the fraction   of sample   will   remain undecayed after 2 days, will be :

A)

\[\sqrt{2}\]

B)

\[\frac{1}{\sqrt{2}}\]

C)

\[\frac{\sqrt{2-1}}{\sqrt{2}}\]

D)

\[\frac{1}{2}\]

View Answer
49) On applying reverse bias to a junction diode, it:

A)

lowers the potential barrier

B)

raises the potential barrier

C)

increases the majority carrier current

D)

increase the minority carrier current

View Answer
50) An -type semiconductor is :

A)

negatively charged

B)

positively charged

C)

neutral

D)

none of the above

View Answer
51) \[n\] small metal drops of same size are charged              to V volt each. If they coalesce to form a single large drop, then its potential will be:

A)

\[V/n\]

B)

\[Vn\]

C)

\[V{{n}^{1/3}}\]

D)

\[V{{n}^{2/3}}\]

View Answer
52) In an adiabatic process, the state of a gas is changed from\[{{P}_{1,}}{{V}_{1,}}{{R}_{1\,\,}}\]to\[{{P}_{2,}}{{V}_{2,}}{{R}_{2.\,\,}}\]which of the following relation is correct?

A)

\[{{T}_{1}}V\,{{_{1}^{\gamma }}^{-1}}={{T}_{2}}V\,{{_{2}^{\gamma }}^{-1}}\]

B)

\[{{P}_{1}}V\,{{_{1}^{\gamma }}^{-1}}={{P}_{2}}V\,{{_{2}^{\gamma }}^{-1}}\]

C)

\[{{T}_{1}}P\,_{1}^{\gamma }={{T}_{2}}P\,_{2}^{\gamma }\]

D)

\[{{T}_{1}}V\,_{1}^{\gamma }={{T}_{2}}V\,_{2}^{\gamma }\]

View Answer
53) Minimum and maximum values of Possion's ratio for a metal lies between:

A)

\[-\infty \,to\,+\,\infty \]

B)

0 to 1

C)

\[-\infty \,\]to 1

D)

0 to 0.5

View Answer
54) A wire of diameter 1 mm breaks under a tension of 1000 N. Another wire, of same material as that of the first one, but of                 diameter 2 mm breaks under a tension of :

A)

500 N

B)

100 N

C)

1000 N

D)

4000 N

View Answer
55) In a capillary tube experiment, a vertical, 30 cm long capillary tube is dipped in water. The water rises upto a height of 10 cm due to capillary action If this experiment is conducted in a freely falling elevator, the length of the water column becomes :

A)

10 cm

B)

20 cm

C)

30 cm

D)

zero

View Answer
56) An aeroplane gets its upward lift due to a phenomenon described by the :

A)

Archimedes principle

B)

Bernoulli's principle

C)

Buoyancy principle

D)

Pascal law

View Answer
57) A wooden block is taken to the bottom of a deep, calm lake of water and then released. It rises up with a :

A)

constant acceleration

B)

decreasing acceleration

C)

constant velocity

D)

decreasing velocity

View Answer
58) A hollow conducting sphere is placed in an electric field produced by a point charge placed at P as shown in figure, Let \[{{V}_{A}}{{V}_{B,}}{{V}_{C}}\]potentials at points A, B and C respectively.         Then

A)

\[{{V}_{C}}>{{V}_{B}}\]

B)

\[{{V}_{B}}>{{V}_{C}}\]

C)

\[{{V}_{A}}>{{V}_{B}}\]

D)

\[{{V}_{A}}={{V}_{C}}\]

View Answer
59) A parallel plate air capacitor is charged and then isolated. When a dielectric material is inserted between the plates of the capacitor,            then which of the following does not change?

A)

Electric field between the plates

B)

Potential difference across the plates

C)

Charge on the plates

D)

Energy stored in the capacitor

View Answer
60) A spherical drop of mercury having a potential of 2.5 V is obtained as a result of merging 125 droplets. The potential of a constituent droplets would be:

A)

1.0 V

B)

0.5 V

C)

0.2 V

D)

0.1 V

View Answer
61) Essential compound to manufacture acrolin is:

A)

glycerol

B)

benzene

C)

phenol

D)

ammonia

View Answer
62) Hybridization present in\[CI{{F}_{3}}\]is:

A)

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

B)

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

C)

\[ds{{p}^{2}}\]

D)

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

View Answer
63) Oxidation number of sulphur in \[{{H}_{2}}{{S}_{2}}{{O}_{8}}\]is:

A)

+6

B)

+8

C)

+21

D)

+7

View Answer
64) Number of electrons surrounding Kr in \[Kr{{F}_{2}}\] is:

A)

10

B)

6

C)

4

D)

8

View Answer
65) Reason of passively of iron is:

A)

\[F{{e}_{2}}{{O}_{3}}\]

B)

\[F{{e}_{3}}{{O}_{4}}\]

C)

\[FeO\]

D)

\[F{{e}_{2}}{{O}_{4}}3{{H}_{2}}O\]

View Answer
66) Half-life of radioactive substance is 4 days. Amound of the substance decayed in two days is:

A)

\[\frac{1}{\sqrt{2}}\]

B)

\[1-\frac{1}{\sqrt{2}}\]

C)

\[20%\]

D)

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

View Answer
67) \[{{K}_{2}}Hg{{I}_{4}}\]is used to test the following:

A)

\[NH_{4}^{+}\]

B)

\[Cl\]

C)

\[Br\]

D)

\[I\]

View Answer
68) \[H-I-O\]bond angle in\[{{H}_{2}}{{O}_{2}}\]is:

A)

\[90{}^\circ \]

B)

\[180{}^\circ \]

C)

\[109.5{}^\circ \]

D)

\[94.8{}^\circ \]

View Answer
69) Iodine is tested by the following reagent

A)

starch

B)

urea

C)

glucose

D)

glycerol

View Answer
70) Half-life of a radioactive element is:

A)

0.693

B)

\[\frac{1}{0.693}\]

C)

\[\frac{0.693}{k}\]

D)

\[\frac{k}{0.693}\]

View Answer
71) Radioactive metal is:

A)

Li

B)

Ce

C)

Na

D)

Ra

View Answer
72) Which has smallest size?

A)

\[N{{a}^{+}}\]

B)

\[M{{g}^{2+}}\]

C)

\[Ne\]

D)

\[{{O}^{2-}}\]

View Answer
73) Phenol on reaction with Br; gives:

A)

\[o-\] Bromo phenol

B)

\[p-\]Bromo phenol

C)

2, 4, 6 tribromo phenol

D)

1, 3, 5 tribromo benzene

View Answer
74) Electron deficient molecule is:

A)

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

B)

\[PC{{l}_{5}}\]

C)

\[B{{F}_{3}}\]

D)

\[S{{F}_{6}}\]

View Answer
75) Which is the correct relation for diffusion of gases:

A)

\[r\propto s\]

B)

\[r\propto \sqrt{d}\]

C)

\[r\propto \frac{1}{\sqrt{d}}\]

D)

none of these

View Answer
76) Aniline with\[CHC{{l}_{3}}\]and KOH on heating \[CHC{{l}_{3}}\]gives:

A)

isocyanide

B)

cyanide

C)

phenol

D)

salicylic acid

View Answer
77) Geometrical isomerism is found in:

A)

pentene-1

B)

pentane

C)

2-butene

D)

butene-1

View Answer
78) Most acidic is:

A)



B)

C)



D)



View Answer
79) Hydrolysis of sodium acetate gives:

A)

acidic solution

B)

basic solution

C)

amphoteric solution

D)

neutral solution

View Answer
80) Isotopic pair is:

A)

\[_{20}{{X}^{40}}{{,}_{21}}{{X}^{40}}\]

B)

\[_{20}{{X}^{40}}{{,}_{20}}{{X}^{41}}\]

C)

\[_{20}{{X}^{20}}{{,}_{41}}{{X}^{20}}\]

D)

None

View Answer
81) \[Z\xrightarrow[{}]{PCl}X\xrightarrow[{}]{alc\,KOH}Y\xrightarrow[{}]{conc\,{{H}_{2}}S{{O}_{4}}}Z\]Here Z is:

A)

\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\]

B)

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

C)

\[C{{H}_{3}}-CH-C{{H}_{3}}\]

D)

none of above

View Answer
82) Fuel used in nuclear reactor is:

A)

plutonium

B)

thorium

C)

radium

D)

deuterium

View Answer
83) Atomic number of an element is equal to the number of:

A)

protons

B)

neutrons

C)

electrons

D)

protons + neutrons

View Answer
84) Following pair is separated by yellow ammonium sulphide:

A)

\[CdS,B{{i}_{2}}Si\]

B)

\[B{{i}_{2}}{{S}_{3}},PbS\]

C)

\[PbS,\text{ }HgS\]

D)

\[CDS,\text{ }A{{g}_{2}}{{S}_{3}}\]

View Answer
85) Cationic hydrolysis gives the following solution:

A)

acidic

B)

basic

C)

neutral

D)

amphoteric

View Answer
86) Which gives nucleophilic addition most easily:

A)

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

B)

\[C{{H}_{3}}C{{H}_{2}}CHO\]

C)

\[C{{H}_{3}}\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{CH}}\,CHO\]

D)

\[HCHO\]

View Answer
87) Compound reacting with alkaline\[KMn{{O}_{4}}\]:

A)

\[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}\]

B)

\[C{{H}_{3}}-\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{CH}}\,-C{{H}_{3}}\]

C)

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

D)

none of the above

View Answer
88) Lucas reagent reacts fastest with:

A)

butanol-1

B)

butanol-2

C)

2-mefhyl-propanol-2

D)

2-methyl-propanol-1

View Answer
89) Reagent used to extract silver from\[A{{g}_{2}}S\]is:

A)

\[NaCN\]

B)

\[NaCN\]in presence of\[{{O}_{2}}\]

C)

\[NaCl\]

D)

\[AgN{{O}_{3}}\]

View Answer
90) Number of moles of\[{{K}_{2}}C{{r}_{2}}{{O}_{2}}\]reduced by one mole of\[S{{n}^{2+}}\]:

A)

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

B)

3

C)

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

D)

6

View Answer
91) \[S{{N}^{2}}\]mechanism is involed in the following substitution:

A)

\[C{{H}_{1}}-C{{H}_{2}}-Cl+O{{H}^{-}}\]

B)

\[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\overset{\begin{smallmatrix} Cl \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}-O{{H}^{-}}\]

C)

\[C{{H}_{3}}-\overset{\begin{smallmatrix} Cl \\ | \end{smallmatrix}}{\mathop{CH}}\,-C{{H}_{3}}+O{{H}^{-}}\]

D)

\[C{{H}_{3}}-C{{H}_{2}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} Cl \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}+O{{H}^{-}}\]

View Answer
92) Radioactive isotope of hydrogen is:

A)

Uranium

B)

Deuterium

C)

Tritium

D)

None

View Answer
93) Electronic configuration of hydride ion is:

A)

\[1\,{{s}^{0}}\]

B)

\[1\,{{s}^{1}}\]

C)

\[1\,{{s}^{2}}\]

D)

\[1{{s}^{1}}\,2{{s}^{1}}\]

View Answer
94) Suitable condition for melting of ice:

A)

high temp. and high pressure

B)

high temp. and low pressure

C)

low temp. and low pressure

D)

low temp. high pressure

View Answer
95) Least ionised salt is:

A)

\[KCl\]

B)

\[AgCl\]

C)

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

D)

\[CaC{{l}_{2}}\]

View Answer
96) Difference in the melting and boiling points of inert gases is:

A)

large

B)

small

C)

no difference

D)

any of these

View Answer
97) Essential component of amalgam is:

A)

Fe

B)

\[Pb\]

C)

Hg

D)

Cr

View Answer
98) Following is estimated by Liebig method:

A)

C and H

B)

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

C)

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

D)

\[B{{r}_{2}}\]

View Answer
99) Inorganic graphite is:

A)

BN

B)

\[B{{F}_{3}}\]

C)

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

D)

none of these

View Answer
100) Nausadar is:

A)

\[N{{H}_{1}}N{{O}_{3}}\]

B)

\[N{{H}_{4}}Cl\]

C)

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

D)

\[N{{H}_{4}}OH\]

View Answer
101) Number of unpaired electrons in\[{{O}_{2}}\]molecule is:

A)

zero

B)

one

C)

two

D)

four

View Answer
102) Anode in the galvanic cell is:

A)

negative electrode

B)

positive electrons

C)

neutral electrode

D)

none of the above

View Answer
103) Normal solution is:

A)

inert solution

B)

acidic solution

C)

one litre containing one equivalent

D)

basic solution

View Answer
104) In exothermic reaction heat is:

A)

given out

B)

absorbed

C)

not involved

D)

given out or absorbed

View Answer
105) Element having maximum electron affinity is:

A)

\[{{F}_{2}}\]

B)

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

C)

\[B{{r}_{2}}\]

D)

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

View Answer
106) Bond order in benzene is:

A)

1

B)

2

C)

1.5

D)

none of these

View Answer
107) Phenol and benzoic acid may be distinguished by:

A)

\[NaHC{{O}_{3}}\]

B)

\[NaOH\]

C)

\[Na\]

D)

\[PC{{l}_{5}}\]

View Answer
108) Correct order of basic nature is:

A)

\[N{{H}_{3}}>C{{H}_{3}}N{{H}_{2}}>{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]

B)

\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}>N{{H}_{3}}>C{{H}_{3}}N{{H}_{2}}\]

C)

\[C{{H}_{3}}N{{H}_{2}}>N{{h}_{3}}>{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]

D)

none of the above

View Answer
109) Element having maximum ionization energy:

A)

Na

B)

Li

C)

K

D)

Rb

View Answer
110) \[HCHO\]reacts with\[N{{H}_{3}}\]to give:

A)

urotropine

B)

bakelite

C)

teryline

D)

gylaptal

View Answer
111) The magnetic moment of\[{{K}_{3}}[Fe{{(CN)}_{6}}]\]is found to be 1.7 BM. How many unpaired electron (s) is/are present per molecule?

A)

1

B)

2

C)

3

D)

4

View Answer
112) Which among the following is an electron deficient compound?

A)

\[N{{F}_{3}}\]

B)

\[P{{F}_{3}}\]

C)

\[B{{F}_{3}}\]

D)

\[As{{F}_{3}}\]

View Answer
113) Arrange the hydra-acids of halogens in increasing order of acidity.

A)

\[HF<HCl<HBr<HI\]

B)

\[HI<HBr<HCl<HF\]

C)

\[HF<HBr<HI<HCl\]

D)

\[HF<HI<HBr<HCl\]

View Answer
114) What is the product of the reaction of\[{{H}_{2}}{{O}_{2}}\]with\[C{{l}_{2}}\]?

A)

\[{{O}_{2}}+HOCl\]

B)

\[HCl+{{O}_{2}}\]

C)

\[{{H}_{2}}O+HCl\]

D)

\[HCl+{{H}_{2}}\]

View Answer
115) Which of the following organo-silicon compound on hydrolysis will give a three dimensional silicone?

A)

\[{{R}_{3}}SiCl\]

B)

\[RSiC{{l}_{3}}\]

C)

\[SiC{{l}_{4}}\]

D)

\[{{R}_{2}}SiC{{l}_{2}}\]

View Answer
116) \[NaOCl\] is used as a bleaching agent and sterilising agent. It can be synthesized by the action of:

A)

\[NaCl\]with\[{{H}_{2\,}}O\]

B)

\[N{{H}_{4}}Cl\]with\[NaOH\]

C)

\[C{{l}_{2}}\]with cold and dilute\[NaOH\]

D)

\[C{{l}_{2}}\]with hot and concentrated\[NaOH\]

View Answer
117) How can you synthesize nitric oxide in the laboratory?

A)

Zinc with cold and dilute\[HN{{O}_{3}}\]

B)

Zinc with concentrated\[HN{{O}_{3}}\]

C)

Copper with cold and dilute\[HN{{O}_{3}}\]

D)

Heating\[N{{H}_{4}}N{{O}_{3}}\]

View Answer
118) Which of the following does not have a lone pair on the central atom?

A)

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

B)

\[P{{H}_{3}}\]

C)

\[B{{F}_{3}}\]

D)

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

View Answer
119) Which colourless gas evolves when\[N{{H}_{4}}Cl\]reacts with zinc in a dry cell battery?

A)

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

B)

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

C)

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

D)

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

View Answer
120) What is the nature of the bond between B and O in\[{{({{C}_{2}}{{H}_{5}})}_{2}}OB{{H}_{3}}\]?

A)

Covalent

B)

Co-ordinate covalent

C)

Ionic bond

D)

Banana shaped bond

View Answer
121) Trochophore is the larva of:

A)

Neopilina

B)

Chiton

C)

Pila

D)

all of these

View Answer
122) Food storage in Leucosolenia occur by :

A)

ostia

B)

osculum

C)

thesocytc

D)

spongocoel

View Answer
123) Organs which differ in origin but perform similar functions :

A)

analogous

B)

homologous

C)

vestigial

D)

any of above

View Answer
124) Blood leaving liver and going towards heart is rich in :

A)

bile

B)

urea

C)

ammonia

D)

oxygen

View Answer
125) Sequence of DNA (Non-coding) is known as :

A)

exon

B)

intron

C)

cistron

D)

none

View Answer
126) How many sperms are formed by four primary spermatocyte:

A)

1

B)

4

C)

16

D)

32

View Answer
127) 'Digestion' word means :

A)

buring of food

B)

oxidation of food

C)

hydrolysis of food

D)

break down of food

View Answer
128) Maximum absorption of water occurs in:

A)

colon

B)

rectum

C)

large intestine

D)

small intestine

View Answer
129) Set which includes only analogous organts is:

A)

wings of butterfly, housefly and bat

B)

hindlegs of horse grasshopper and bat

C)

wings of btterfly and Wingspread fo bat and birds

D)

mandibles of cockrach, mosquito and honey bee.

View Answer
130) Convergent Evolution' is shown by :

A)

homologous organs

B)

analogous organs

C)

vestigial organs

D)

above three

View Answer
131) Chloragogen cells of earthworms are analogous to vertebrate :

A)

lungs

B)

liver

C)

gut

D)

kidneys

View Answer
132) Class Crustacea differ from Insecta in having ;

A)

two pairs of antennae

B)

jointed foot

C)

chitinous cuticle

D)

none of these

View Answer
133) In DNA, which is absent :

A)

Adenine

B)

Thymine

C)

Guanine

D)

Uracil

View Answer
134) Neural canal is present in :

A)

humerus

B)

tibio-fibula

C)

vertebral column

D)

cranial bones

View Answer
135) Sigmoid notch is formed by :

A)

cavity formed by humerus

B)

cavity formed by radio ulna

C)

cavity formed by tibio fibula

D)

cavity formed by femur

View Answer
136) Lymphocytes are formed by :

A)

plasma cells

B)

mast cells

C)

liver cells

D)

none of these

View Answer
137) On high mountains, difficulty in breathing is due to :

A)

decrease in partial pressure of \[{{O}_{2}}\]

B)

decrease in amount of \[{{O}_{2}}\]

C)

increase in \[C{{O}_{2}}\] conc

D)

all of the above

View Answer
138) Which of the following character is presence essentially in chordates?

A)

Ventral spinal chord

B)

Dorsal heart

C)

Pharyngeal gill slits

D)

Blood flow in forward direction in ventral blood vessels

View Answer
139) If drosal nerve of spinal cord is broken down then its effect is :

A)

no impulse is transmitted

B)

impulse is transmitted but slowly

C)

impulse is trasmitted fast

D)

no effect on impulse

View Answer
140) Striped muscles are characterised by :

A)

syncytial

B)

spindle shape

C)

uninucleate

D)

none of the above

View Answer
141) Bowman's capsule is found in :

A)

glomerulus

B)

uriniferous tubule

C)

nephron

D)

malpighian capsule

View Answer
142) Which of the following hormone stimulates the gastric secretion ?

A)

Enterogastrone

B)

Gastrin

C)

CCK-PZ

D)

Villiknin

View Answer
143) Example of Analogous organs is :

A)

wings of bird and insect

B)

forelimbs of horse and man

C)

teeth of elephant and man

D)

none of the above

View Answer
144) During staravation what will be sequence of ending of food stuffs?

A)

Carbohydrate - Fat - Protein

B)

Carbohydrate - Protein - Fat

C)

Fat - Protein - Carbohydrate

D)

Fat - Carbohydrate - Protein

View Answer
145) Number of cranial nerves in frog :

A)

10 pairs

B)

9 pairs

C)

12 pairs

D)

none of the above

View Answer
146) How many ATP are formed by oxidation of one glucose molecular in liver cells?

A)

36

B)

38

C)

2

D)

8

View Answer
147) A haemophilic woman marries a normal man then :

A)

all the children will be normal

B)

all the sons will be haemophilic

C)

all the girls will be haemophilic

D)

half girls will be haemophilic

View Answer
148) Husband has blood group A and wife has blood group B. What is the blood group of children?

A)

A

B)

B

C)

AB

D)

All A, B, AB or O

View Answer
149) Which insect is useful for us?

A)

Periplaneta

B)

Musca

C)

Bombyx

D)

Mosquitoes

View Answer
150) Which is called soluble FUMA?

A)

r- WA

B)

t ?RNA

C)

m-RNA

D)

hn-RNA

View Answer
151) Which cell organelle is covered by only one unit membrane?

A)

Nucleus

B)

Plastids

C)

Mitochondria

D)

Lysosome

View Answer
152) The s-phase of cell cycle is characterized by:

A)

duplication of chromosome

B)

shotening of chromosome

C)

duplication of DNA

D)

duplicatin of centriole

View Answer
153) Quiscent centre is present in :

A)

root apex

B)

shoot apex

C)

parenchyma

D)

collenchyma as

View Answer
154) e -DNA is formed from m-RNA by which enzyme:

A)

restriction endonuclease

B)

reverse transcriptase

C)

DNA polymerase

D)

RNA polymerase

View Answer
155) Mutation is more common when it is present in:

A)

dominant condition

B)

recessive condition

C)

constant in population

D)

none of the above

View Answer
156) In DNA, which is absent ?

A)

Adenine

B)

Guanine

C)

Uracil

D)

Cytosine

View Answer
157) Cell membrane is made up of :

A)

protein

B)

cellulose

C)

lipids,

D)

lipids carbohydrates and protein

View Answer
158) Living in same habitat organisms of same species from :

A)

biosphere

B)

community

C)

population

D)

niche

View Answer
159) Which of the following constitute about 10-20% of total circular RNA?

A)

m-RNA

B)

r -RNA

C)

t -RNA

D)

hn -RNA

View Answer
160) Jumping genes in maize were discovered by:

A)

Hugo de Vries

B)

T.H. Morgan

C)

Barbara McClintock

D)

Mendel

View Answer
161) Innitiation codon is:

A)

AUG

B)

UUU

C)

UAG

D)

AAG

View Answer
162) Which statement is incorrect?

A)

Plant viruses contain RNA

B)

                                                                                              Animal viruses contain DNA

C)

\[{{T}_{4}}\]contains double strand DNA

D)

TMV contains double stranded RNA

View Answer
163) Pollination occuring from one flower to another of same plant is :

A)

autogamy

B)

allogamy

C)

geitenogamy

D)

none of these

View Answer
164) Aleuron layer is found in :

A)

embryo

B)

nuceltus

C)

endosperm

D)

endodermis

View Answer
165) Core of chlorophyll is formed by :

A)

Fe

B)

Mn

C)

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

D)

Mg

View Answer
166) By anaerobic process, the cow dung is used to produce :

A)

methane

B)

butane

C)

ethane

D)

propane                 By anaerobic process, the cow dung is used to produce biogas. Biogas is a mixture of methane \[(C{{H}_{4}})\]and carbon dioxide \[(C{{O}_{2}}).\]

View Answer
167) 'Heterosis' is related to :

A)

cloning

B)

selection

C)

hybridization

D)

introduction

View Answer
168) Phytotron is :

A)

a controlled condition chamber for tissue

B)

leaf culture process

C)

special culture of plants

D)

root culture process

View Answer
169) Fruits are formed in :

A)

Brassica

B)

Fern

C)

Cycas

D)

Funaria

View Answer
170) \[C{{O}_{2}}\]acceptor in CAM plants is in :

A)

mesophyll cells

B)

bundle sheath

C)

both

D)

none of the above

View Answer
171) If centromere is the middle, the chromosome is called :

A)

sub-metacentric

B)

metacentric

C)

acentric

D)

telocentric

View Answer
172) Which hormone is responsible for mobilization of storage food during seed germination?

A)

Auxin

B)

Gibberellin

C)

Cytokinin

D)

Ethylene

View Answer
173) P-proteins belong to :

A)

xylem parenchyma

B)

trichomes

C)

sieve tube elements

D)

tracheids and vessels

View Answer
174) The wall of bacteria is consists of :

A)

N-acetyl glucosamine

B)

N-acetyl muramic acid

C)

both and

D)

cellulose

View Answer
175) Which enzyme is most specific ?

A)

Trypsin

B)

Pepsin

C)

Sucrase

D)

Nuclease

View Answer
176) The organelles, those take part in photorespiration are :

A)

chloroplast and mitochondria

B)

cloroplast, mitochondria and peroxisome

C)

mitochondria and peroxisome

D)

mitochondria only

View Answer
177) Pneumatophores are meant for :

A)

respiration

B)

anchorage

C)

protection

D)

nutrition

View Answer
178) Non-coding sequences of DNA are :

A)

exon

B)

intron

C)

rhizoids

D)

cistron

View Answer
179) Mosses are attached to substratum by :

A)

roots

B)

capsule

C)

rhizoids

D)

cistron

View Answer
180) Mark the correct sequence of layers found in root anatomy :

A)

Epiblema,   cortex,   endodermis, pericycle

B)

Cortex,    epiblema,    pericycle, endodermis

C)

Epiblema,     cortex,     pericycle, endodermis

D)

Cortex,   epiblema,   endodermis, epidermis

View Answer

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