Solved papers for MGIMS WARDHA MGIMS WARDHA Solved Paper-2007

MGIMS WARDHA Solved Paper-2007 Total Questions - 180

1) Which of the following has centre of mass not situated in the material of body?

A)

A rod bent in the form of a circle

B)

Solid sphere

C)

Cricket bat

D)

None of the above

View Answer
2) In a carnival ride the passengers travel in a circle of radius 5.0 m, making one complete circle in 4.0 s. What is the acceleration?

A)

24.6 m/s2

B)

12.3 m/s2

C)

6.15 m/s2

D)

49.2 m/s2

View Answer
3) A road is 8 m wide. Its radius of curvature is 40 m. The outer edge is above the lower edge by a distance of 1.2 m. This road is most suited for a velocity of

A)

5.7 m/s

B)

7.7 m/s

C)

36.1 m/s

D)

9.7 m/s

View Answer
4) A 0.5 kg ball moves in a circle of radius 0.4 m at a velocity of 4 m/s. The centripetal force on the ball is.

A)

10 N

B)

20 N

C)

40 N

D)

80 N

View Answer
5) A rod of length L, whose lower end is sliding along the horizontal plane, starts to topple from the vertical position. The velocity of the upper end when it hits the ground is

A)

\[\sqrt{gL}\]

B)

\[\sqrt{3gL}\]

C)

\[\sqrt{5gL}\]

D)

\[3\sqrt{gL}\]

View Answer
6) Two bodies of moments of inertia \[{{I}_{1}}\] and \[{{I}_{2}}\] \[({{I}_{1}}>{{I}_{2}})\]have equal angular momentum. If \[{{E}_{1,}}\]\[{{E}_{2}}\] are their kinetic energies of rotation, then

A)

\[{{E}_{1}}>{{E}_{2}}\]

B)

\[{{E}_{1}}={{E}_{2}}\]

C)

\[{{E}_{1}}<{{E}_{2}}\]

D)

cannot be said

View Answer
7) An artificial satellite revolves around the earth in a circular orbit with a speed v. If m is the mass of the satellite, its total energy is

A)

\[\frac{1}{2}m{{v}^{2}}\]

B)

\[-\frac{1}{2}m{{v}^{2}}\]

C)

\[-m{{v}^{2}}\]

D)

\[\frac{3}{2}m{{v}^{2}}\]

View Answer
8) In an earth's satellite the astronaut stands on a platform. His weight as indicated by the balance will be

A)

6g

B)

2g

C)

8 g

D)

zero

View Answer
9) A body of mass m is moved to a height h equal to the radius of the earth. The increase in potential energy is

A)

\[2mgR\]

B)

\[mgR\]

C)

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

D)

\[\frac{1}{4}mgR\]

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

A)

\[4{}^\circ C\]

B)

\[25{}^\circ C\]

C)

\[50{}^\circ C\]

D)

\[75{}^\circ C\]

View Answer
11) Work done in spliting a drop of water of 1 mm radius into 64 droplets is (surface tension of waters \[=72\times {{10}^{-3}}J/{{m}^{2}}\])

A)

\[2.0\times {{10}^{-6}}J\]

B)

\[2.7\times {{10}^{-6}}J\]

C)

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

D)

\[5.4\times {{10}^{-6}}J\]

View Answer
12) A black body at 227oC radiates heat at the rate of \[7\text{ }cal/c{{m}^{2}}-s.\] At a temperature of 727°C, the rate of heat radiated in same units will be

A)

80

B)

60

C)

50

D)

112

View Answer
13) The vertical extension in a light spring by a weight of 1 kg suspended from the wire is 9.8 cm. The period of oscillation is

A)

\[20\pi s\]

B)

\[2\pi \]

C)

\[\frac{2\pi }{10}s\]

D)

\[200\pi \,s\]

View Answer
14) A panicle of mass 10 g is describing SHM along a straight line with period of 2 s and amplitude of 10 cm. Its kinetic energy when it is al 5 cm from its equilibrium position is

A)

\[3.75{{\pi }^{2}}\,erg\]

B)

\[375{{\pi }^{2}}\,erg\]

C)

\[0.375{{\pi }^{2}}\,erg\]

D)

\[37.5{{\pi }^{2}}\,erg\]

View Answer
15) The angular amplitude of a simple pendulum is \[{{\theta }_{0.}}\] The maximum tension in its string will be

A)

\[mg(1-{{\theta }_{0}})\]

B)

\[mg(1+{{\theta }_{0}})\]

C)

\[mg(1-\theta \,_{0}^{2})\]

D)

\[mg(1+\theta \,_{0}^{2})\]

View Answer
16) It is possible to recognise a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice

A)

has a definite capacity

B)

has a definite quality

C)

has definite pitch

D)

can penetrate the wall

View Answer
17) The velocity of sound in air at NTP is 330 m/s. What will be its value when temperature is doubled and pressure is halved?

A)

330 m/s

B)

165 m/s

C)

330 \[\sqrt{2}\] m/s

D)

\[\frac{330}{\sqrt{2}}\]m/s

View Answer
18) The intensity of sound gets reduced by 10% on passing through a slab. The reduction in intensity on passing through two consecutive slabs would be

A)

20%

B)

19%

C)

5%

D)

50%

View Answer
19) Point charges + 4q, - q and + 4q are kept on the \[x\]-axis at points \[x=0,x-a\] and \[x=2a\] respectively, then

A)

only - q is in stable equilibrium

B)

all the charges are in stable equilibrium

C)

all the charges are in unstable equilibrium

D)

none of the above

View Answer
20) If \[{{E}_{a}}\] be the electric field strength of a short dipole at a point on its axial line and \[{{E}_{e}}\] that on equilateral line at the same distance, then

A)

\[E=2{{E}_{a}}\]

B)

\[E{{ }_{a}}=2{{E}_{e}}\]

C)

\[E{{ }_{a}}={{E}_{e}}\]

D)

none of these

View Answer
21) If emf E = 4 cos 1000t volt is applied to an L-R circuit of inductance 3 mH and resistance 40\[\Omega \] the amplitude of current in the circuit is

A)

\[\frac{4}{\sqrt{7}}A\]

B)

\[1.0A\]

C)

\[\frac{4}{7}A\]

D)

\[0.8A\]

View Answer
22) A candidate connects a moving coil ammeter A and a moving coil voltmeter V and a resistance R as shown. If the voltmeter reads 20 V and the ammeter reads 4 A, then R is

A)

equal to 5\[\Omega \]

B)

greater than 5\[\Omega \]

C)

less than 5\[\Omega \]

D)

none of these

View Answer
23) A wire of length L has resistance R. It is bent at mid-point such that the two halves make an angle 90° with each other. The new resistance would be

A)

R

B)

\[\sqrt{2}R\]

C)

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

D)

\[\frac{R}{4}\]

View Answer
24) The ratio of magnetic potentials due magnetic dipole in the end on position to that broad side on position for the same distance from it is

A)

zero

B)

infinite

C)

1

D)

2

View Answer
25) In the unmagnetized state magnetic domain of a magnetic substance are oriented at

A)

\[60{}^\circ \]

B)

\[90{}^\circ \]

C)

randomly

D)

\[150{}^\circ \]

View Answer
26) When a ferromagnetic material is heated above its Curie temperature it

A)

gets demagnetized

B)

becomes diamagnetic

C)

behaves like a paramagnetic substance

D)

remains unaffected

View Answer
27) Four independent waves are expressed as (i)\[{{y}_{1}}={{a}_{1}}\sin \omega t\]                    (ii)\[{{y}_{1}}={{a}_{2}}\sin 2\omega t\] (iii)\[{{y}_{3}}={{a}_{3}}\cos \omega t\]and         (iv)\[{{y}_{4}}={{a}_{4}}\sin \,\,\left( \omega t+\frac{\pi }{3} \right)\] The interference is possible between

A)

(i) and (iii)

B)

(i) and (iv)

C)

(ii) and (iv)

D)

not possible at all

View Answer
28) Two gases A and B at same pressure contain number of moles \[{{n}_{1}}\] and \[{{n}_{2}}\] Their volume temperature graphs are shown in figure. Then the ratio \[{{n}_{1}}/{{n}_{2}}\]is

A)

1

B)

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

C)

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

D)

\[3\]

View Answer
29) A DC circuit contains 10 \[\Omega \] of resistance in series with 10 H coil. The impedance of the circuit is

A)

10 \[\Omega \]

B)

20\[\Omega \]

C)

1\[\Omega \]

D)

zero

View Answer
30) Two coils of self-inductances \[{{L}_{1}}\] and \[{{L}_{2}}\] are placed so close together that effective flux in   one coil is completely linked with the other. If M is the mutual inductance between them, then

A)

\[M={{L}_{1}}{{L}_{2}}\]

B)

\[M={{L}_{1}}/{{L}_{2}}\]

C)

\[M=L\]

D)

\[M=\sqrt{{{L}_{1}}{{L}_{2}}}\]

View Answer
31) Two coherent monochromatic light beams of intensities \[I\] and 4 \[I\] superimpose. The maximum and minimum possible intensities in the resulting beam are respectively

A)

5\[I\] and \[I\]

B)

5\[I\] and 3\[I\]

C)

3\[I\]and\[I\]

D)

9 \[I\]and\[I\]

View Answer
32) Ordinary light incident on a glass slab at the polarising angle suffers a deviation of 220. The value of the angle of refraction in glass in this case is

A)

\[56{}^\circ\]

B)

\[68{}^\circ\]

C)

\[34{}^\circ\]

D)

\[22{}^\circ\]

View Answer
33) A source of sound emits 200 \[\pi \]W power which is uniformly distributed over a sphere of 10 m radius. What is the loudness of sound on the surface of a sphere?

A)

200 dB

B)

200\[\pi \] dB

C)

120 dB

D)

120\[\pi \]dB

View Answer
34) A radio isotope has half-life of 5 yr. The fraction of the atoms of this material that would decay in 15 yr will be

A)

1

B)

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

C)

\[\frac{7}{8}\]

D)

\[\frac{5}{8}\]

View Answer
35) The ground state energy of H-atom is 13.6 eV. The energy needed to ionize H-atom from its second excited state is

A)

1.51 eV

B)

3.4 eV

C)

13.6 eV

D)

12.1 eV

View Answer
36) Forward bias characteristics of a p-n junction diode is used in which of the following devices?

A)

Transistor

B)

Tank circuit

C)

Rectifier

D)

All of these

View Answer
37) The energy gap between conduction band and valence band is of the order of 0.07 eV. It is a/an

A)

insulator

B)

conductor

C)

semiconductor

D)

alloy

View Answer
38) In an L-R circuit, the current increases to three fourth of its maximum value in 4 s, then the S- time constant of the circuit is

A)

\[2{{\log }_{e}}\,2\]

B)

\[\frac{4}{{{\log }_{e}}2}\]

C)

\[\frac{2}{{{\log }_{e}}2}\]

D)

\[\frac{{{\log }_{e\,}}2}{2}\]

View Answer
39) An oscillator is basically an amplifier with gain

A)

less than unity

B)

more than unity

C)

zero

D)

0.5

View Answer
40) A particle of mass m at rest decays into two particles of masses \[{{m}_{1}}\]and \[{{m}_{2}}\] having non-zero velocities. The ratio of de-Broglie wavelengths of the particles\[\frac{{{\lambda }_{1}}}{{{\lambda }_{2}}}\]is

A)

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

B)

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

C)

\[1.0\]

D)

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

View Answer
41) Figure shows a P-V diagram. How does the work done in the process change with time ?

A)

First decreases and then increases

B)

First increases and then decreases

C)

Continuously decreases

D)

Continuously increases

View Answer
42) Two identical galvanometers are taken, one is to be converted into an ammeter and other into a milliammeter. Shunt of milliammeter compared to ammeter is

A)

less

B)

more

C)

zero

D)

none of these

View Answer
43) If the vibrations of a string are to be increased by a factor of two, the tension in the string should be made

A)

twice

B)

four times

C)

eight rimes

D)

half

View Answer
44) A triode valve has an amplification factor of 20 and its plate is given a potential of 300 V. The grid voltage to reduce the plate current to zero, is

A)

25V

B)

15V

C)

12V

D)

10V

View Answer
45) An electron of mass m and charge e is accelerated from rest through a potential difference V in vacuum. The final speed will be

A)

\[\frac{2eV}{m}\]

B)

\[V\sqrt{\frac{e}{m}}\]

C)

\[\sqrt{\frac{3eV}{m}}\]

D)

\[\sqrt{\frac{2eV}{m}}\]

View Answer
46) In a circuit, the current lags behind the voltage by a phase difference of \[\pi /2,\]the circuit will contain which of the following?

A)

Only R

B)

Only C

C)

R and C

D)

Only L

View Answer
47) Which one of the following does not support the wave nature of light?

A)

Photoelectric effect

B)

Interference

C)

Polarization

D)

Diffraction

View Answer
48) A siren emitting sound of frequency 800 Hz is going away from a static listener with a speed of 30 m/s. Frequency of sound to be heard by the listener is (velocity of sound = 330 m/s)

A)

286.5 Hz

B)

481.2 Hz

C)

733.3 Hz

D)

644.8 Hz

View Answer
49) A wire fixed at the upper end stretches by length \[\Delta l\] by applying a force F. The work done in stretching is

A)

\[\frac{F}{2\Delta l}\]

B)

\[F\Delta l\]

C)

\[2F\Delta l\]

D)

\[\frac{F\Delta l}{2}\]

View Answer
50) The Young's modulus of a wire is numerically equal to the stress which will

A)

not change the length of the wire

B)

double the length of the wire

C)

increase the length

D)

change the radius of the wire to half

View Answer
51) The musical interval between two tones of frequency 400 Hz and 200 Hz is

A)

2

B)

200

C)

1

D)

0.5

View Answer
52) Which of the following has the minimum resistance?

A)

Voltmeter

B)

Millivoltmeter

C)

Ammeter

D)

Milliammeter

View Answer
53) N identical cells, each of emf E, are connected in parallel. The emf of the combination is

A)

NE

B)

E

C)

N2E

D)

E/N

View Answer
54) According to Newton's law of cooling, the rate of cooling of a body is proportional to \[{{(\Delta \theta )}^{n}},\]where \[\Delta \theta \] is the difference of the temperature of the body and the surroundings and n is equal to

A)

2

B)

3

C)

4

D)

1

View Answer
55) Which of the following parameters does not characterize the thermodynamic state of matter?

A)

Volume

B)

Temperature

C)

Pressure

D)

Work

View Answer
56) A 30 \[\pi F\] capacitor is charged by a constant current of 30 mA. If the capacitor is initially uncharged, how long does it take for the potential difference to reach 400 V?

A)

0.2s

B)

0.4s

C)

0.6s

D)

0.8s

View Answer
57) A panicle moving with a velocity \[\frac{1}{10}\]the of light will cross a nucleus in about

A)

\[{{10}^{-8}}s\]

B)

\[{{10}^{-12}}s\]

C)

\[{{10}^{-47}}s\]

D)

\[{{10}^{-21}}s\]

View Answer
58) Which of the following nuclei is fissionable but not possible?

A)

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

B)

\[_{92}{{U}^{233}}\]

C)

\[_{92}{{U}^{238}}\]

D)

\[_{94}{{U}^{239}}\]

View Answer
59) In a common base amplifier, the phase difference between the input signal voltage and output voltage is

A)

\[\frac{\pi }{4}\]

B)

\[\pi \]

C)

zero

D)

\[\frac{\pi }{2}\]

View Answer
60) Therm-ions are

A)

photons

B)

protons

C)

electrons

D)

nuclei

View Answer
61) What is the half-life of\[_{6}{{C}^{14}},\]if its disintegration constant is\[2.31\times {{10}^{-4}}y{{r}^{-1}}\]?

A)

\[0.3\times {{10}^{4}}yr\]

B)

\[0.3\times {{10}^{3}}yr\]

C)

\[0.3\times {{10}^{8}}yr\]

D)

\[0.3\times {{10}^{2}}yr\]

View Answer
62) What is the frequency of a X-ray photon whose momentum is\[1.1\times {{10}^{-23}}kg-m{{s}^{-2}}\]?

A)

\[5\times {{10}^{16}}Hz\]

B)

\[0.5\times {{10}^{27}}Hz\]

C)

\[0.5\times {{10}^{18}}Hz\]

D)

\[5\times {{10}^{18}}Hz\]

View Answer
63) Metals are good conductor of electricity because they contain

A)

a network structure

B)

ionic bonds

C)

very few valence electrons

D)

free electrons

View Answer
64) Which of the following is an ester?

A)

Coconut oil

B)

Kerosene oil

C)

Soap

D)

Glycerine

View Answer
65) Identify the ?C? in the reaction \[RN{{H}_{2}}\xrightarrow{HN{{O}_{2}}}A+B+C\uparrow \]

A)

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

B)

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

C)

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

D)

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

View Answer
66) The magnitude of orbital angular momentum of an electron of azimuthal quantum number 2 is

A)

\[\frac{2h}{2\pi }\]

B)

\[\frac{\sqrt{6}h}{2\pi }\]

C)

\[\frac{\sqrt{2}h}{2\pi }\]

D)

\[\frac{6h}{2\pi }\]

View Answer
67) Hydrolysis of lactose with dilute acid yields

A)

D-glucose + D-glucose

B)

D-glucose + D-galactose

C)

D-glucose + D-fructose

D)

D-galactose + D-fructose

View Answer
68) The pH of a 0.02 M solution of\[HCl\]is

A)

2.2

B)

2.0

C)

0.3

D)

1.7

View Answer
69) The solubility product of\[Mg{{(OH)}_{2}}\]at\[25{}^\circ C\]is \[1.4\times {{10}^{-11}}\]. What is the solubility of\[Mg{{(OH)}^{2}}\]in g/L?

A)

0.0047 g/L

B)

0.047 g/L

C)

0.0087 g/L

D)

0.087 g/L

View Answer
70) \[Ni/N{{i}^{2+}}[1.0M]||A{{u}^{3+}}[1.0M]/Au\]where\[E{}^\circ \] for\[N{{i}^{2+}}/Ni\]is\[-0.25\,V\,{{E}^{o}}\]for\[A{{u}^{3+}}/Au\] is 0.150V) What is the emf of the cell?

A)

+ 0.4V

B)

\[-1.75V\]

C)

+ 1.25V

D)

+ 1.75V

View Answer
71) The heat of formation of\[C{{O}_{2}}\]is\[-393\text{ }kJ\text{ }mo{{l}^{-1}}\] The amount of heat evolved in the formation of 0.156 kg of\[C{{O}_{2}}\]

A)

\[-1393kJ\]

B)

\[+1165.5\,kJ\]

C)

\[+1275.9kJ\]

D)

\[-1165.5\text{ }kJ\]

View Answer
72) Which is used to obtain salicylic acid from phenol?

A)

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

B)

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

C)

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

D)

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

View Answer
73) Dehydration of glycerol produces

A)

propanone

B)

allyl alcohol

C)

glycol

D)

acrolein

View Answer
74) Which is the strongest acid?

A)

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

B)

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

C)

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

D)

\[CC{{l}_{3}}COOH\]

View Answer
75) \[C{{H}_{3}}Br+KCN(alco.)\xrightarrow{{}}X\xrightarrow[Na+{{C}_{2}}{{H}_{5}}OH]{\operatorname{Re}duction}Y\]. What is Y in the series?

A)

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

B)

\[{{C}_{2}}{{H}_{5}}CN\]

C)

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

D)

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

View Answer
76) When fluorine reacts with hot and cone. \[NaOH,\]it gives

A)

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

B)

\[Na\]

C)

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

D)

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

View Answer
77) Which of the compound is optically active?

A)

1-butanol

B)

Ethanol

C)

2-butanol

D)

Isopropyl alcohol

View Answer
78) In acidic medium\[MnO_{4}^{-}\]is converted to\[M{{n}^{2+}}\]. The quantity of electricity in faraday required to reduce 0.5 mole of \[MnO_{4}^{-}\]to\[M{{n}^{2+}}\]would be

A)

2.5

B)

1

C)

5

D)

0.5

View Answer
79) During electrolysis of water the volume of oxygen liberated is\[2.24\text{ }d{{m}^{3}}\]. The volume of hydrogen liberated, under same conditions will be

A)

\[2.24\,d{{m}^{3}}\]

B)

\[1.12\,d{{m}^{3}}\]

C)

\[4.48\,d{{m}^{3}}\]

D)

\[0.56\,d{{m}^{3}}\]

View Answer
80) Crystalline form of silica is called

A)

crystalline silicon

B)

quartz

C)

rock

D)

talc

View Answer
81) The elements commonly used for making transistors are

A)

Ga and In

B)

C and Si

C)

P and As

D)

Si and Ge

View Answer
82) 2-pentanone and 3-pentanone can be distinguished by

A)

cannizaro's reaction

B)

iodoform reaction

C)

aldol condensation

D)

Clemmensen's reduction

View Answer
83) Proteins are

A)

polypeptides with low molecular weights

B)

polypeptides with high molecular weights

C)

polymers of amides

D)

polymers of secondary amines

View Answer
84) End product of the hydrolysis of\[Xe{{F}_{6}}\]is

A)

\[XeO{{F}_{4}}\]

B)

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

C)

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

D)

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

View Answer
85) Which method is not used for the extraction of\[Al\]?

A)

Van-Arkel

B)

Serpeck

C)

Baeyer

D)

Hall-Heroult

View Answer
86) The radiant energy from the sun is due to

A)

combustion

B)

chemical reaction

C)

nuclear fusion

D)

nuclear fission

View Answer
87) Which will give cannizaro reaction?

A)

\[C{{l}_{3}}C-CHO\]

B)

\[{{C}_{6}}{{H}_{5}}CHO\]

C)

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

D)

All of the above

View Answer
88) Aluminium becomes passive on treatment with

A)

dil.\[HN{{O}_{3}}\]

B)

cone.\[HN{{O}_{3}}\]

C)

dil. \[{{H}_{2}}S{{O}_{4}}\]

D)

none of these

View Answer
89) Which is not a true peroxide?

A)

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

B)

Caro's acid

C)

Marshall's acid

D)

Thiosulphuric acid

View Answer
90) The two isomers given below are

A)

enantiomers

B)

diastereomers

C)

mesomers

D)

position isomers

View Answer
91) \[C{{H}_{3}}CH{{I}_{2}}\xrightarrow{KCN}\xrightarrow{{{H}_{2}}O,\Delta }?\] Here the end product would be

A)

2-cyano propionic acid

B)

ethane-1,1-dicarboxylic acid

C)

2-methyl ethanoic acid

D)

propionic acid

View Answer
92) A lyophobic colloid is

A)

\[A{{s}_{2}}{{S}_{3}}\]

B)

starch

C)

agar-agar

D)

gelatin

View Answer
93) Which of the following is correct according to Freundlich adsorption isotherm?

A)

\[\frac{x}{m}\propto {{p}^{0}}\]

B)

\[\frac{x}{m}\propto p\]

C)

\[\frac{x}{m}\propto \frac{1}{p}\]

D)

\[\frac{x}{m}\propto {{p}^{1/n}}\]

View Answer
94) The rust of iron is catalysed by which of the following?

A)

\[Fe\]

B)

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

C)

\[Zn\]

D)

\[{{H}^{+}}\]

View Answer
95) An ester linkage is present in

A)

nylon-6

B)

nylon-6,6

C)

dacron

D)

rayon

View Answer
96) Williamson's synthesis involves

A)

\[{{S}_{N}}1\] mechanism

B)

nucleophilic addition

C)

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

D)

\[{{S}_{E}}\]mechanism

View Answer
97) HF is not preserved in glass bottle because

A)

it reacts with the visible part of the light

B)

it reacts with ^he sodium oxide of the glass

C)

it reacts with the aluminium oxide of the glass composition

D)

it reacts with\[Si{{O}_{2}}\]of the glass

View Answer
98) Oils can be converted into fats by

A)

hydrogenolysis

B)

hydrogenation

C)

decarboxylation

D)

hydration

View Answer
99) The geometry of methane molecule is

A)

tetrahedral

B)

pyramidal

C)

octahedral

D)

square planar

View Answer
100) Heisenberg's uncertainty principle can be explained as

A)

\[\Delta x\ge \frac{\Delta p\times h}{4\pi }\]

B)

\[\Delta x\times \Delta p\ge \frac{h}{4\pi }\]

C)

\[\Delta x\times \Delta p\ge \frac{h}{\pi }\]

D)

\[\Delta p\ge \frac{\pi h}{\Delta x}\]

View Answer
101) The bond energy is the energy required to

A)

dissociate one mole of the substance

B)

dissociate bond in 1 kg of the substance

C)

break one mole of similar bonds

D)

break bonds in one mole of the substance

View Answer
102) Heat of neutralisation of an acid with a base is 13.7 kcal when

A)

both acid and base are weak

B)

acid is weak and base is strong

C)

both acid and base are strong

D)

acid is strong and base is weak

View Answer
103) Hess's law is based on

A)

law of conservation of mass

B)

law of conservation of energy

C)

enthalpy is a state function

D)

none of the above

View Answer
104) In a lead storage battery, reaction at cathode is

A)

\[Pb+SO_{4}^{2-}\xrightarrow{{}}PbS{{O}_{4}}+2{{e}^{-}}\]

B)

\[Pb+Pb{{O}_{2}}+{{H}_{2}}S{{O}_{4}}\] \[\xrightarrow{{}}2PbS{{O}_{4}}+2{{H}_{2}}O\]

C)

\[PbS{{O}_{4}}+2{{e}^{-}}\xrightarrow[{}]{{}}pb+SO_{4}^{2-}\]

D)

\[Pb{{O}_{2}}+4{{H}^{+}}+SO_{4}^{2-}+2{{e}^{-}}\] \[\xrightarrow[{}]{{}}pbS{{O}_{4}}+2{{H}_{2}}O\]

View Answer
105) A buffer solution contains 500 mL of 0.2 M \[C{{H}_{3}}COONa\]and 500 mL of\[0.1\text{ }M\text{ }C{{H}_{3}}COOH\]. 1L of water is added to this buffer, pH before and after dilution will be (\[p{{k}_{a}}\] of\[C{{H}_{3}}COOH=4.74\])

A)

5.04, 3.74

B)

5.04, 5.04

C)

5.04, 4.89

D)

9.56, 9.56

View Answer
106) In coagulating the colloidal solution of\[A{{s}_{2}}{{S}_{3}}\] which has the minimum coagulating value?

A)

\[NaCl\]

B)

\[KCl\]

C)

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

D)

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

View Answer
107) What is binding energy in \[_{5}^{11}\] B nucleus, if mass is 0.08181 amu?

A)

\[1.2\times {{10}^{-4}}erg/nucleus\]

B)

\[8.2\times {{10}^{-4}}erg/nucleus\]

C)

\[10.2\times {{10}^{-4}}erg/nucleus\]

D)

\[1.9\times {{10}^{-4}}erg/nucleus\]

View Answer
108) Which radioactive element is being used in cancer therapy?

A)

\[_{27}^{60}Co\]

B)

\[_{28}^{62}Ni\]

C)

\[_{56}^{140}Ba\]

D)

\[_{15}^{32}P\]

View Answer
109) Among third row elements, the IP value

A)

irregularly changes from left to right across the third row

B)

increases from left to right across the third row

C)

decrease for\[Na\]to\[Ar\]

D)

remains constant

View Answer
110) Hydrofluoric acid shows hydrogen bonding due to

A)

high electron affinity of fluorine

B)

high bond dissociation energy of fluorine

C)

high electronegativity of fluorine

D)

none of the above

View Answer
111) Which of the following products are formed when\[Si{{C}_{4}}\]vapour are passed over hot\[Mg\]?

A)

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

B)

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

C)

\[M{{g}_{2}}Si+MgC{{l}_{2}}\]

D)

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

View Answer
112) Chloropicrin is used as an insecticide and has been used as tear war gas. The chloropicrin is

A)

\[C{{H}_{2}}ClCC{{l}_{3}}\]

B)

\[CC{{l}_{3}}N{{O}_{2}}\]

C)

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

D)

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

View Answer
113) Reagent in second step should be

A)

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

B)

\[KOH+{{C}_{2}}{{H}_{5}}OH\]

C)

\[KOH+{{C}_{2}}{{H}_{5}}SH\]

D)

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

View Answer
114) Identify the product Y in the sequence\[C{{H}_{3}}CHO+C{{H}_{3}}MgI\xrightarrow{Ether}X\xrightarrow{{{H}_{2}}O/{{H}^{+}}}Y,\]is

A)

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

B)

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

C)

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

D)

\[{{(C{{H}_{3}})}_{3}}COH\]

View Answer
115) Two moles of acetic acid are heated with\[{{P}_{2}}{{O}_{5}}\] The product formed is

A)

2 moles of ethyl alcohol

B)

formic anhydride

C)

acetic anhydride

D)

2 moles of methyl cyanide

View Answer
116) The reaction,\[ROH+{{H}_{2}}C{{N}_{2}}\]in the presence of\[HB{{F}_{4}},\]gives the following product

A)

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

B)

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

C)

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

D)

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

View Answer
117) The conjugate base of \[(C{{H}_{3}}){{ }_{2}}\overset{+}{\mathop{N}}\,{{H}_{2}}\]is

A)

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

B)

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

C)

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

D)

\[{{(C{{H}_{3}})}_{2}}{{N}^{+}}\]

View Answer
118) Lecithin is an example of

A)

carbohydrate

B)

hormones

C)

vitamins

D)

phospholipid

View Answer
119) Artificial silk is

A)

nylon-6

B)

rayon

C)

nylon 66

D)

none of these

View Answer
120) Which of the following is common example of fibres?

A)

Bakelite

B)

Buna-S

C)

Nylon-66

D)

PVC

View Answer
121) Curdling of milk in small intestine occurs doe to                 the action of

A)

trypsin

B)

erypsin

C)

rennin

D)

chymotrypsin

View Answer
122) ADH controls water permeability of

A)

                collecting tube

B)

                distal convoluted tubule

C)

                proximal convoluted tubule

D)

Bowman's capsule

View Answer
123) Biomagnification refers to

A)

rapid growth due to excessive intake of nutrients

B)

                increase in population size

C)

                decrease in population size

D)

increase in concentration of non-degrabable     pollutants as they pass through food chain

View Answer
124)                          During the conduction of nerve impulse, the action potential is the result of movement of

A)

                \[N{{a}^{+}}\]from intracellular fluid to extracellular fluid

B)

                \[N{{a}^{+}}\] from extracellular fluid to intracellular fluid

C)

                \[N{{a}^{+}}\] towards both directions

D)

                None of the above

View Answer
125) The AIDS virus spreads through

A)

killer -T cells

B)

helper T cells

C)

suppressor T cells

D)

carrier T cells

View Answer
126) Apis dorsata refers to

A)

rock bee

B)

little bee

C)

Indian bee

D)

European bee

View Answer
127) Which are the longest cells in the body of man?

A)

Muscle cells of legs

B)

Bone cells

C)

Nerve cells

D)

None of the above

View Answer
128) CO is more toxic than \[C{{O}_{2}}\]because

A)

                it affects the nervous system

B)

                it damages lungs

C)

                it reduces the oxygen carrying capacity of haemoglobin

D)

                it forms acid with water

View Answer
129) Leprosy is also called as

A)

Hansen's disease

B)

sarcoma

C)

slim disease

D)

leukemia

View Answer
130) Which of the following is not a character of Chordata?

A)

                Dorsal tubular nerve cord

B)

                Pharyngeal gill slits

C)

                Presence of notochord

D)

                Presence of spinal cord

View Answer
131) Vitamin essential for proper functioning of liver                and clotting of blood is

A)

                vitamin-K

B)

vitamin-A

C)

                vitamin-E

D)

vitamin-\[{{\text{B}}_{\text{12}}}\]

View Answer
132) Cancer causing genes (oncogenes) were discovered by

A)

                Watson and Crick

B)

                Beadle and Tatum

C)

                Bishop and Varamus

D)

                Temin and Baltimore

View Answer
133) Beak is toothed in

A)

pelican

B)

kiwi

C)

ostrich

D)

Archaeopteryx

View Answer
134) The sliding filament theory of muscle contraction was proposed by

A)

                A.F. Huxley and A.P. Pullman

B)

                A.F. Huxley and H.E. Huxley

C)

                B. Pullman and A.P. Huxley

D)

                A. Pullman and E. Pullman

View Answer
135) Which one is uricotelic ?

A)

                Frog and toads

B)

                Lizards and birds /cockroach

C)

                Cattle, monkey and man

D)

                Molluscs and teleost fishes

View Answer
136) Interacting populations are

A)

symbiotic

B)

mutualistic

C)

parasitic

D)

coevolved

View Answer
137) salamandra atra is

A)

ovoviviparous

B)

oviparous

C)

sexually sterile

D)

parthenogenetic

View Answer
138) Flying fish is

A)

Torpedo

B)

Scoliodon

C)

Anguilla

D)

Exocoetus

View Answer
139) Tay Sach's disease is due to

A)

                sex linked recessive gene

B)

                sex linked dominant gene

C)

                autosomal dominant gene

D)

                autosomal recessive gene

View Answer
140) The earliest fossil form in phylogeny of horse is

A)

Merychippus

B)

Mesohtppus

C)

Eohippus

D)

Equus

View Answer
141) What is true about vein ?

A)

                All veins carry deoxygenated blood

B)

                All veins cany oxygenated blood

C)

                They carry blood from organs towards hean

D)

                They carry blood from heart towards organs

View Answer
142) Autosomes in humans are

A)

11 pairs

B)

22 pairs

C)

23 pairs

D)

43 pairs

View Answer
143) Haeckel's biogenetic law or recapitulation theory states that

A)

life history of an animal reflects evolutionary history of the same

B)

                progeny resembles parents

C)

                mutations are acquired characters

D)

                all organisms begin their life from zygote

View Answer
144) A colour blind mother and normal father would                 have

A)

colour blind sons and normal/carrier daughters

B)

                colour blind sons and daughters

C)

                all colour blind

D)

                all normal

View Answer
145) Cranial capacity of modem man is

A)

450-650 cc

B)

600-1000 cc

C)

900-1100 cc

D)

1200-1600 cc

View Answer
146) Inheritance of ABO blood groups illustrates

A)

polyploidy

B)

multiple allelism

C)

euploidy

D)

dominance

View Answer
147) The most primitive cell like chemical aggregates                capable of growth and division were

A)

                chemoautotrophs

B)

eobionts

C)

                prokaryotes

D)

microspheres

View Answer
148) Name the ship on which Darwin got opportunity for a voyage of world.

A)

                Titanic

B)

Vikrant

C)

                Vectoria

D)

Beagle

View Answer
149) Which of the following are most abundant types of antibodies ?

A)

\[{{\text{I}}_{\text{g}}}\text{A}\]

B)

\[{{\text{I}}_{\text{g}}}\text{E}\]

C)

\[{{\text{I}}_{\text{g}}}\text{G}\]

D)

\[{{\text{I}}_{\text{g}}}\text{M}\]

View Answer
150) Acromegaly is due to hyper secretion of

A)

thyroxin

B)

prolactin

C)

insulin

D)

growth hormone

View Answer
151) Ruminate endosperm occurs in

A)

Annonaceae/Areca nut

B)

Compositae

C)

Cruciferae

D)

Euphorbiaceae

View Answer
152) The edible part of apple/pear is

A)

cotyledons

B)

thalamus/receptacle

C)

mesocarp

D)

endocarp

View Answer
153) In synapsis two homologous chromosomes are connected at

A)

centromeres

B)

chromomeres

C)

telomeres

D)

none of these

View Answer
154) Stages in proper sequence of prophase-I are

A)

zygotene, leptotene, pachytene, diakinesis

B)

leptotene, zygotene, pachyiene, diplotene and diakinesis

C)

leptotene, pachyiene, zygotene, diakinesis and diplotene

D)

diplotene, diakinesis, pachytene, zygotene and leptotene

View Answer
155) Plasmid is

A)

small extrachromosomal circular self replicating DNA that can carry genes into host organism

B)

bacteriophage

C)

DNA found in mitochondria

D)

DNA incorporated in bacterial chromosome

View Answer
156) A group of plants or animals with similar traits of any rank is

A)

species

B)

genus

C)

order

D)

taxon

View Answer
157) Fermentation products of yeast are

A)

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

B)

Methyl alcohol \[+C{{O}_{2}}\]

C)

Methyl alcohol + Water

D)

Ethyl alcohol \[+C{{O}_{2}}\]

View Answer
158) Grafting is not possible in monocots because they

A)

lack cambium

B)

have scattered vascular bundles

C)

have parallel venation

D)

are herbaceous

View Answer
159) What is true about a gamo spermous apospory?

A)

Formation of embryo from egg of embryo sac proliferated from a nucellar cell

B)

Formation of embryo from egg of embryo sac formed directly from megaspore mother cell

C)

Formation of embryo directly from nucellus

D)

Formation of embryo directly from integument

View Answer
160) RQ for fatty substance/fat is

A)

unity

B)

less than one

C)

more than one

D)

zero

View Answer
161) Seed which are able to withstand reduction in moisture and temperature are called

A)

dormant seeds

B)

recalcitrant seeds

C)

orthodox seeds

D)

non-viable seeds

View Answer
162) Enzyme required for transcription is

A)

RNAse

B)

Endonuclease

C)

RNA polymerase

D)

DNA polymerase

View Answer
163) The synthetic hormone used as a weedicide is

A)

Indole 3-acetic acid

B)

gibberellic acid

C)

2-4 dichlorophenoxyacetic acid

D)

maleic hydrazide

View Answer
164) Which is present in monocot flowers ?

A)

Sepals

B)

Petals

C)

Tepals

D)

None of these

View Answer
165) Anthesis means

A)

growth of pollen tube inside the carpel

B)

dehiscence of anthers

C)

opening of floral bud

D)

emergence of anthers

View Answer
166) Which one of the following contain agranal chloropiasts ?

A)

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

B)

Succulants

C)

C4 plants

D)

Hydrophytes

View Answer
167) The process of multiplication of DNA from DNA is known as

A)

replication

B)

transversion

C)

transcription

D)

translation

View Answer
168) Phycobilins absorb light of wavelength

A)

670-700 nm

B)

610-650 nm

C)

500-650 nm

D)

420-520 nm

View Answer
169) For synthesis of one hexose sugar, how many times Calvin cycle is turned ?

A)

12

B)

2

C)

6

D)

3

View Answer
170) The number of chlorophyll molecules in a quantasomc is

A)

50-100

B)

200-250

C)

300-400

D)

500-600

View Answer
171) A plant having seeds but lacking flowers and fruits belong to

A)

pteridophytes

B)

mosses

C)

ferns

D)

gymnosperms

View Answer
172) Transpiration differ from evaporation in

A)

rate of water loss

B)

transpiration is a physiological process whereas evaporation is physical process

C)

transpiration is a physical process while evaporation is physiological process

D)

frequency of water loss

View Answer
173) Pigments common to all algae are

A)

chlorophyll-a and phycobilins

B)

chlorophyll-a and carotenoids

C)

chlorophyll-a and chlorophyll-b

D)

chlorophyll-b and carotenoids

View Answer
174) An antitranspirant is

A)

cobalt chloride

B)

mercury

C)

potassium

D)

phenyl mercuric acetate

View Answer
175) Crossing over in diploid organisms is responsible for

A)

dominance of genes

B)

linkage between genes

C)

recombination of linked genes

D)

segregation of alleles

View Answer
176) Active \[{{K}^{+}}\]exchange mechanism for opening and closing of stomata was given by

A)

Darwin

B)

Levit

C)

Scarth

D)

Khorana

View Answer
177) First geneticist, father of genetics was

A)

de Vries

B)

Mendel

C)

Darwin

D)

Morgan

View Answer
178) Quiescent centre is found in root apex and acts as

A)

permanent source of active initiates

B)

reservoir of resistant cells

C)

reservoir of passive cells to form new root apex if root apex is damaged/killed

D)

all of the above

View Answer
179) Which type of meristems allow the fallen stem of cereals/grasses to become erect?

A)

Apical meristem

B)

Lateral meristem

C)

Intercalary meristem

D)

Secondary meristem

View Answer
180) A simple technology has been developed in India for plant breeders and fanners to use two plants as biofertilizers for growing rice. These are

A)

Azotobacter and Rhizobium

B)

Chlorella and Spirulina

C)

Azolla and nitrogen fixing blue-green algae

D)

Riccia and Marc/ianria

View Answer

Study Package

Buy Now

Solved papers for MGIMS WARDHA MGIMS WARDHA Solved Paper-2007

done MGIMS WARDHA Solved Paper-2007 Total Questions - 180

Study Package

MGIMS WARDHA Solved Paper-2007 Total Questions - 180