Solved papers for MGIMS WARDHA MGIMS WARDHA Solved Paper-2009

MGIMS WARDHA Solved Paper-2009 Total Questions - 180

1) The observed wavelength of light coming from a distant galaxy is found to be increased by 0.5% as compared with that coming from a terrestrial source. The galaxy is

A)

stationary with respect to the earth

B)

approaching the earth with velocity of light

C)

receding from the earth with velocity of Light

D)

receding from the earth with a velocity equal to \[1.5\times {{10}^{6}}m/s\]

View Answer
2) A ball is moving in a circular path of radius 5 m. If tangential acceleration at any instant is 10 m/s2 and the net acceleration makes an angle 30 with the centripetal acceleration, then the instantaneous speed is

A)

\[50\sqrt{3}m/s\]

B)

\[9.3m/s\]

C)

\[6.6m/s\]

D)

\[5.4m/s\]

View Answer
3) A spherical solid ball of mass 1 kg and radius 3o cm is rotating about an axis passing through its centre with an angular velocity of 50 rad/s. The kinetic energy of rotation is

A)

4500 J

B)

90 J

C)

910 J

D)

0.45J

View Answer
4) The moment of inertia of a thin spherical shell of mass M and radius R about a diameter is \[\frac{2}{3}\]MR 2Its radius of gyration K about a tangent will be

A)

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

B)

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

C)

\[\frac{5}{3}R\]

D)

\[\sqrt{\frac{5}{3}}R\]

View Answer
5) The outer sphere of a spherical air capacitor is earthed. For increasing its capacitance

A)

vacuum is created between two spheres

B)

dielectric material is filled between the two spheres

C)

the space between two spheres is increased

D)

the earthing of the outer sphere is removed

View Answer
6) A body weighs 200 N at the surface of earth. If it be placed in an artificial satellite revolving at height where acceleration due to gravity is half of that at earth's surface. It will weigh

A)

100 N

B)

200 N

C)

400 N

D)

zero

View Answer
7) Bulk modulus of water is \[2\times {{10}^{9}}N/{{m}^{2}}.\] The change in pressure required to increase the density of water by 0.1% is

A)

\[2\times {{10}^{9}}N/{{m}^{2}}\]

B)

\[2\times {{10}^{8}}N/{{m}^{2}}\]

C)

\[2\times {{10}^{6}}N/{{m}^{2}}\]

D)

\[2\times {{10}^{4}}N/{{m}^{2}}\]

View Answer
8) A simple pendulum is made by attaching a 1 kg bob to a 5 m long copper wire. Its period is 7 Now, if 1 kg bob is replaced by 10 kg bob, the period of oscillations

A)

remains T

B)

becomes greater than T

C)

becomes less than T

D)

any of above depends on locality

View Answer
9) A wire suspended vertically from one of its ends is stretched by attaching a weight of 200 N to the lower end. The weight stretches the wire by 1 mm. Then the elastic energy stored in the wire is

A)

20 J

B)

0.1 J

C)

0.2 J

D)

10 J

View Answer
10) A metal wire of length \[l\] area of cross-section A and Young's modulus Y behaves as a spring of spring constant k given by

A)

\[k=\frac{YA}{l}\]

B)

\[k=\frac{2YA}{l}\]

C)

\[k=\frac{YA}{2l}\]

D)

\[k=\frac{Yl}{A}\]

View Answer
11) The length of a seconds pendulum is

A)

99.8cm

B)

99cm

C)

100 cm

D)

None of the above

View Answer
12) Certain neutron stars are believed to be rotating at about 1 rev /s. If such a star has a radius of 20 km, the acceleration of an object on the equator of the star will be

A)

\[20\times {{10}^{8}}m/{{s}^{2}}\]

B)

\[8\times {{10}^{s}}m/{{s}^{2}}\]

C)

\[120\times {{10}^{s}}m/{{s}^{2}}\]

D)

\[4\times {{10}^{8}}m/{{s}^{2}}\]

View Answer
13) The length of a needle floating on water is 2.5 cm. Calculate the added force (due to surface tension) required to pull the needle out of water. (Surface tension of water \[=7.2\times {{10}^{-2}}N/{{m}^{2}}\])

A)

\[3.6\times {{10}^{-3}}N\]

B)

\[3.4\times {{10}^{-10}}N\]

C)

\[3.0\times {{10}^{-5}}N\]

D)

\[3.8\times {{10}^{-11}}N\]

View Answer
14) A capillary tube of radius r is immersed in water and water rises in it to a height H. Mass of water in the capillary tube is m. If the capillary of radius 2r is taken and dipped in water, the mass of water that will rise in the capillary tube will be

A)

m

B)

2m

C)

m/2

D)

4m

View Answer
15) In planetary motion the areal velocity of position vector of a planet depends on angular velocity (\[\omega \]) and distance of the planet from the sun (r). If so the correct relation for areal velocity is

A)

\[\frac{dA}{dt}\propto \,\omega r\]

B)

\[\frac{da}{dt}\propto {{\omega }^{2}}r\]

C)

\[\frac{da}{dt}\propto \omega {{r}^{2}}\]

D)

\[\frac{da}{dt}\propto \sqrt{\omega r}\]

View Answer
16) When a galvanometer is shunted by resistance S, its current capacity increases n times. If the same galvanometer is shunted by another resistance S', its current capacity will increase by n' is given by

A)

\[\frac{(n+1)S}{S'}\]

B)

\[\frac{S(n-1)+S'}{S'}\]

C)

\[\frac{n+S}{S'}\]

D)

\[\frac{S(n-1)-S'}{S'}\]

View Answer
17) A metallic solid sphere is rotating about its diameter as axes of rotation. If the temperature is increased by 200°C, the percentage increase in its moment of inertia is (Coefficient of linear expansion of the metal \[={{10}^{-5}}{{/}^{o}}C\])

A)

0.1%

B)

0.2%

C)

0.3%

D)

  0.4%

View Answer
18) A 100 mH coil carries 1 A current. Energy stored in its magnetic field is

A)

0.1 J

B)

0.05 J

C)

0.05 J

D)

1 J

View Answer
19) Maximum energy is evolved during which of the following transitions?

A)

n = 1 to n =2

B)

n =2 to n=6

C)

n = 2to n =1

D)

n= 6 to n=2

View Answer
20) The average velocity of the molecules in a gas in equilibrium is

A)

proportional to\[\sqrt{T}\]

B)

proportional to\[T\]

C)

proportional to\[{{T}^{2}}\]

D)

equal to zero

View Answer
21) A vessel containing 0.1 m3 of air at 76 cm of Hg is connected to an evacuated vessel of capacity 0.09 m . The resultant air pressure is

A)

20 cm of Hg

B)

30 cm of Hg

C)

40 cm of Hg

D)

60 cm of Hg

View Answer
22) Two springs of force constant 1000 N/m and 2000 N/m are streched by same force. The ratio of their respective potential energies is

A)

2 : 1

B)

1 : 2

C)

4 : 1

D)

1 : 4

View Answer
23) If at the same temperature and pressure, the densities of two diatomic gases are \[{{d}_{1}}\] and \[{{d}_{2}}\] respectively, the ratio of mean kinetic energy per molecule of gases will be

A)

\[1:1\]

B)

\[{{d}_{1}}:{{d}_{2}}\]

C)

\[\sqrt{{{d}_{1}}}:\sqrt{{{d}_{2}}}\]

D)

\[\sqrt{{{d}_{2}}}:\sqrt{{{d}_{1}}}\]

View Answer
24) When LED is forward biased, then

A)

electrons from the n-type material cross the -n junction and recombine with holes in the p- type material

B)

electrons and holes neutralise each other

C)

at junction electrons and holes remains at rest

D)

None of the above

View Answer
25) High frequency waves are

A)

affected by the solar cycle

B)

reflected by D2 layer

C)

absorbed by the F2 layer

D)

capable of use for long distance communication on the moon

View Answer
26) Maximum velocity of photoelectron emitted is \[4.8m{{s}^{-1}}.\] If e/m ratio of electron is \[1.76\times {{10}^{11}}Ck{{g}^{-1}},\]then stopping potential is given by

A)

\[5\times {{10}^{-10}}J/C\]

B)

\[3\times {{10}^{-7}}J/C\]

C)

\[7\times {{10}^{-11}}J/C\]

D)

\[2.5\times {{10}^{2}}J/C\]

View Answer
27) A copper rod is suspended in a non homogeneous magnetic field region. The rod when in equilibrium will align itself

A)

in the region where magnetic field is strongest

B)

in the region where magnetic field is weakest and parallel to direction of magnetic field there

C)

in the direction in which it was originally suspended

D)

in the region where magnetic field is weakest and perpendicular to the direction of magnetic field there

View Answer
28) A black body of mass 34.38 g and surface area \[19.2c{{m}^{2}}\]is at an initial temperature of 400 K. It is allowed to cool inside an evacuated enclosure kept at constant temperature 300 K. The rate of cooling is 0.04°C/s. The specific heat   of body   is   (Stefan's   constant\[\sigma =5.73\times {{10}^{-8}}J{{m}^{-2}}{{K}^{-4}}\])

A)

2800 J/kg-K

B)

2100 J Ag-K

C)

1400 J/kg-K

D)

1200 J/ kg-K

View Answer
29) A pendulum suspended from the ceiling of a train has a period T when the train is at rest. When the train accelerates with a uniform acceleration a, the period of oscillation will

A)

increase

B)

decrease

C)

remain unaffected

D)

become infinite

View Answer
30) The motion of a particle executing SHM is given by \[x\] = 0.01 sin 100\[\pi \] (+0.05), where \[x\] is in metre and r in second. The time period of motion (in second) is

A)

0.01

B)

0.02

C)

0.1

D)

0.2

View Answer
31) What is the area of the plates of a 3F parallel plate capacitor, if the seperation between the plates is 5 mm?

A)

\[1.694\times {{10}^{9}}{{m}^{2}}\]

B)

\[4.529\times {{10}^{9}}{{m}^{2}}\]

C)

\[9.281\times {{10}^{9}}{{m}^{2}}\]

D)

\[12.981\times {{10}^{9}}{{m}^{2}}\]

View Answer
32) When a certain volume of water is subjected to 100kPa pressure, the volume of water decreases by 0.005%. The speed of sound in water must be

A)

140 m/s

B)

300 m/s

C)

1400 m/s

D)

5000 m/s

View Answer
33) A man stands in a narrow, steep-sided valley. When he shouts he hears two echoes, one after 1 sand other after 2s. If the velocity of sound in air is 330 m/s, the width of the valley is

A)

330m

B)

495m

C)

660m

D)

990m

View Answer
34) A cylindrical tube, open at both ends emits a fundamental frequency\[f\]in air. The tube is dipped vertically in water, so that half of it is in water. The fundamental frequency of air column is now

A)

\[f/2\]

B)

\[2f/4\]

C)

\[f\]

D)

\[2f\]

View Answer
35) The end correction of a resonance column is cm. If the shortest length resonating with the tuning fork is 15.0 cm, the next resonating length will be

A)

31 cm

B)

45 cm

C)

46 cm

D)

47 cm

View Answer
36) A potentiometer has uniform potential gradient across it. Two cells connected in series to support each other and (ii) to oppose each other are balanced over 6m and 2m, respectively on the potentiometer wire. The emf s of the cells are in the ratio of

A)

1: 2

B)

1 : 1

C)

3 : 1

D)

2 : 1

View Answer
37) The de-Broglie wavelength of an electron having 80 eV of energy is nearly (\[1eV=1.6\times {{10}^{-19}}J,\]mass of electron \[=9.1\times {{10}^{-31}}kg,\] Planck's constant\[=6.6\times {{10}^{-34}}kg,s\])

A)

\[140{AA}\]

B)

\[0.14{AA}\]

C)

\[14{AA}\]

D)

\[1.4{AA}\]

View Answer
38) The distance between two coherent sources is mm. The screen is placed at a distance of 1 m from the sources. If the distance of the third bright fringe is 1.2 mm from the central fringe, the wavelength of light used is

A)

\[4000{AA}\]

B)

\[5000{AA}\]

C)

\[6000{AA}\]

D)

\[7200{AA}\]

View Answer
39) Two polaroids are crossed. If now one of them is rotated through 30° and unpolarised light of intensity \[{{l}_{o}}\] is incident on the first polaroid, then the intensity of transmitted light will be

A)

\[\frac{{{I}_{0}}}{4}\]

B)

\[\frac{3{{I}_{0}}}{4}\]

C)

\[\frac{3{{I}_{0}}}{8}\]

D)

\[\frac{{{I}_{0}}}{8}\]

View Answer
40) A wave front is represented by the plane\[y=3-x\]The propagation of wave takes place at

A)

\[45{}^\circ \] with x-direction

B)

\[135{}^\circ \] with x-direction

C)

\[60{}^\circ \] with x-direction

D)

No sufficient data

View Answer
41) The intensity ratio of two coherent sources of light is P. They are interfering in same region and produce interference pattern. Then the f, fringe visibility is

A)

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

B)

\[\frac{1\sqrt{p}}{1+p}\]

C)

\[\frac{p}{1+p}\]

D)

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

View Answer
42) A condenser of capacitance 6 \[\mu F\] was originally charged to 10 V. Now potential difference is made 20 V. The increase in potential energy is

A)

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

B)

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

C)

\[9\times {{10}^{-4}}J\]

D)

\[12\times {{10}^{-4}}J\]

View Answer
43) If there is no deflection in the galvanometer connected in a circuit shown in figure, then the ratio of lengths AC/CB is

A)

4 : 1

B)

1 : 4

C)

1:1

D)

2 : 1

View Answer
44) In moving coil galvanometer, the magnetic field used is

A)

non-uniform

B)

radial

C)

uniform

D)

None of these

View Answer
45) A charged particle enters in a strong perpendicular magnetic field. Then its kinetic energy

A)

increases

B)

decreases

C)

remains constant

D)

first increases and then becomes constant

View Answer
46) Calculate the current which will produce a deflection of 30° in a tangent galvanometer, if its reduction factor is 3 A.

A)

1.732 A

B)

0.732 A

C)

3.732 A

D)

2.732 A

View Answer
47) Iron is ferromagnetic

A)

at all temperatures

B)

at NTP only

C)

above 770°C

D)

below 770°C

View Answer
48) The inductance of a coil in which a current of 0.2 A is increasing at the rate of 0.5 A/s represents a power flow of 0.5 W, is

A)

2H

B)

5H

C)

10 H

D)

20 H

View Answer
49) The mutual inductance of an induction coil is 5 H. In the primary coil, the current reduces from 5 A to zero in 10-3 s. What is the induced emf in the secondary coil?

A)

2500V

B)

25000V

C)

2510V

D)

Zero

View Answer
50) The electrical conductivity of semiconductor increases, when electromagnetic radiation of wavelength shorter than \[24800{AA}\] nm a incident on it. The band gap for the semiconductor is

A)

0.9 eV

B)

0.7 eV

C)

0.5 eV

D)

  1.1 eV

View Answer
51) Wave front of a wave has direction with wave motion

A)

parallel

B)

perpendicular

C)

opposite

D)

at an angle of \[\theta \]

View Answer
52) A panicle rests on the top of a hemisphere of radius R. Find the smallest horizontal velocity that must be imparted to the panicle, if it is to leave the hemisphere without sliding down it a

A)

\[\sqrt{gR}\]

B)

\[\sqrt{2gR}\]

C)

\[\sqrt{3gR}\]

D)

\[\sqrt{5gR}\]

View Answer
53) Relative permeability of iron is 5500, then if magnetic susceptibility will be

A)

\[5500\times {{10}^{7}}\]

B)

\[5500\times {{10}^{-7}}\]

C)

5501

D)

5499

View Answer
54) The moment of inertia of a body about a given axis is 1.2 kg-m. Initially the body is at rest. If order to produce a rotational kinetic energy of 1500 J, an angular acceleration of 25 rad/s'2 must be applied about the axis for a duration of

A)

4s

B)

2s

C)

8s

D)

10s

View Answer
55) What is shape of magnet in moving coil galvanometer to make the radial magnetic field?

A)

Concave

B)

Horse shoe magnet

C)

Convex

D)

None of the above

View Answer
56) The breaking strength of a rod of diameter 2cm is \[2\times {{10}^{5}}N.\] Then that for rod of same material but diameter 4 cm will be

A)

\[2\times {{10}^{5}}N\]

B)

\[1\times {{10}^{5}}N\]

C)

\[8\times {{10}^{5}}N\]

D)

\[0.5\times {{10}^{5}}N\]

View Answer
57) A metallic rod of Young's modulus \[2\times {{10}^{11}}N/{{m}^{2}}\]undergoes a strain of 0.5%. Then the energy stored per unit volume in the rod will be

A)

\[2.5\times {{10}^{-5}}J/{{m}^{3}}\]

B)

\[5.0\times {{10}^{8}}J/{{m}^{3}}\]

C)

\[2.5\times {{10}^{-8}}J/{{m}^{3}}\]

D)

\[0.5\times {{10}^{11}}J/{{m}^{3}}\]

View Answer
58) A cyclotron can accelerate

A)

\[\beta \]-particles

B)

\[\alpha \]-paiticles

C)

high-velocity gamma rays

D)

high velocity X-rays

View Answer
59) The work done in increasing the size of a soap film from \[10cm\times 6cm\]to \[10cm\times 11cm\]is \[3\times {{10}^{-4}}J.\] The surface tension of the film is

A)

\[1.5\times {{10}^{-2}}N/m\]

B)

\[3.0\times {{10}^{-2}}~N/m\]

C)

\[~6.0{{\times }^{-2}}N/m\]

D)

\[11\times {{10}^{-2}}~N/m\]

View Answer
60) A potentiometer having the potential gradient of 2 mV/cm is used to measure the difference of potential across a resistance of\[10\Omega .\] If a length of 50 cm of the potentiometer wire is required to get the null points the current passing through 10\[\Omega \]resistor is (in mA)

A)

1

B)

2

C)

5

D)

10

View Answer
61) The concentration of\[A{{g}^{+}}\]ion in a given saturated solution of\[AgCl\]at\[25{}^\circ C\]is \[1.06\times {{10}^{-5}}g\,ion\text{ }{{L}^{-1}}\]. Thus, the solubility product of\[AgCl\]is

A)

\[0.453\times {{10}^{-10}}\]

B)

\[0.530\times {{10}^{-10}}\]

C)

\[1.12\times {{10}^{-10}}\]

D)

\[2.12\times {{10}^{-10}}\]

View Answer
62) Formic acid can be distinguished from acetic acid by its reaction with

A)

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

B)

Tollen's reagent

C)

\[NaOH\]

D)

None of these

View Answer
63) If a salt bridge is removed between the half cells, the voltage

A)

decreases to zero

B)

increases

C)

increases rapidly

D)

do not change

View Answer
64) Lanthanum the first element of lanthanide series has

A)

only unfilled 3d orbitals

B)

unfilled 3d and 4d orbitals

C)

unfilled 4d and\[4f\]orbitals

D)

unfilled\[4f\]and Sd orbitals

View Answer
65) Aspirin is prepared by the acetylation of salicylic acid with

A)

phenol

B)

acetic anhydride

C)

methyl acetate

D)

chlorine

View Answer
66) A radioactive substance decays to,\[\frac{3}{4}\]th of its original value in 2h. The half-me of the substance is

A)

1 h

B)

30 min

C)

1 h 30 min

D)

None of these

View Answer
67) Among the following, the correct order of basicity is

A)

\[NH_{2}^{-}>O{{H}^{-}}>R{{O}^{-}}>RCO{{O}^{-}}\]

B)

\[NH_{2}^{-}>R{{O}^{-}}>O{{H}^{-}}>RCO{{O}^{-}}\]

C)

\[RCO{{O}^{-}}>NH_{2}^{-}>R{{O}^{-}}>O{{H}^{-}}\]

D)

\[RCO{{O}^{-}}>R{{O}^{-}}>NH_{2}^{-}>O{{H}^{-}}\]

View Answer
68) The chemical reaction\[2{{O}_{3}}\xrightarrow{{}}3{{O}_{2}}\]proceeds as (i)\[{{O}_{3}}{{O}_{2}}+O\] (fast) (ii)\[O+{{O}_{3}}\xrightarrow{{}}2{{O}_{2}}\](slow) The rate expression should be

A)

\[r=k{{[{{O}_{3}}]}^{2}}\]

B)

\[r=k{{[{{O}_{3}}]}^{2}}{{[{{O}_{2}}]}^{-1}}\]

C)

\[r=k[{{O}_{3}}][{{O}_{2}}]\]

D)

None of these

View Answer
69) Cannizaro reaction is not given by

A)

acetaldehyde

B)

formaldehyde

C)

benzaldehyde

D)

triethyl acetaldehyde

View Answer
70) Heat of combustion of\[C\]and\[CO\]are -394 and -285 kJ respectively, so heat of formation of \[CO\]in kJ/mol is

A)

-218

B)

-109

C)

+109

D)

+218

View Answer
71) Which enzyme converts glucose to ethanol?

A)

Diastase

B)

Invertase

C)

Zymase

D)

Both and

View Answer
72) The product formed is an isobar, if there is

A)

\[1\alpha \]emission

B)

\[1\beta \]emission

C)

\[1\alpha \]and\[1\beta \]emission

D)

\[2\alpha \]and\[1\beta \]emission

View Answer
73) Which of the following reaction follows\[{{S}_{N}}1\] mechanism?

A)

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

B)

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

C)

\[{{(C{{H}_{3}})}_{3}}C-Cl+NaOH\]

D)

\[{{(C{{H}_{3}})}_{2}}CHI+{{H}_{2}}O\]

View Answer
74) Which of the following has more unpaired d-electrons?

A)

Zn

B)

\[F{{e}^{2+}}\]

C)

\[N{{i}^{3+}}\]

D)

\[C{{u}^{+}}\]

View Answer
75) How many structural isomers are possible for\[{{C}_{4}}{{H}_{9}}Cl\]?

A)

2

B)

4

C)

8

D)

10

View Answer
76) 0.5 molal solution of ethylene glycol in water is used as coolant in car. If the freezing point depression constant of water is\[1.86{}^\circ C\]per mol, the mixture will freeze at

A)

\[0.93{}^\circ C\]

B)

\[-\text{ }0.93{}^\circ C\]

C)

\[1.86{}^\circ C\]

D)

\[-\text{ }1.86{}^\circ C\]                 \[\Rightarrow \]\[\Delta {{T}_{f}}={{k}_{f}}\times m\] \[=1.86\times 0.5=0.93{}^\circ C\] \[\therefore \] \[\Delta {{T}_{f}}=T_{f}^{o}-{{T}_{f}}\] \[\therefore \] \[{{T}_{f}}=T_{f}^{o}-\Delta {{T}_{f}}=0-0.93=-{{0.93}^{o}}C\]

View Answer
77) Solution of\[0.1N{{H}_{4}}OH\]and\[0.1N\,N{{H}_{4}}Cl\]has pH 9.25. Then,\[p{{K}_{b}}\]of\[N{{H}_{4}}OH\]is

A)

9.25

B)

4.75

C)

3.75

D)

8.25

View Answer
78) In the above sequence, II is

A)

\[\text{ }\!\!\beta\!\!\text{ -}\]alanine

B)

\[\alpha \text{-}\]alanine

C)

ethylene diamine

D)

\[\text{ }\!\!\gamma\!\!\text{ -}\]amino butyric acid

View Answer
79) How many grams of\[C{{O}_{2}}\]will be produced by the complete combustion of 2 moles, of ethanol?

A)

132 g

B)

44 g

C)

176 g

D)

88 g

View Answer
80) In which of the following reactions ether does not form?

A)

\[{{C}_{2}}{{H}_{5}}ONa+{{C}_{2}}{{H}_{5}}I\]

B)

\[{{C}_{2}}{{H}_{5}}ONa+{{(C{{H}_{3}})}_{3}}CBr\]

C)

\[{{C}_{2}}{{H}_{5}}I+dry\,A{{g}_{2}}O\]

D)

\[{{C}_{2}}{{H}_{5}}PH+{{H}_{2}}S{{O}_{4}}(140{}^\circ C)\]

View Answer
81) Among the following sweetner which one has the lowest sweetness value?

A)

Alitame

B)

Aspartame

C)

Saccharine

D)

Sucralose

View Answer
82) In the Rosenmund's reaction \[RCOCl+{{H}_{2}}\xrightarrow{Pd/BaS{{O}_{4}}}RCHO+HCl\]here\[BaS{{O}_{4}}\]

A)

promotes catalytic activity of\[Pd\]

B)

removes the\[HCl\]formed in the reaction

C)

deactivates\[Pd\]

D)

activates\[Pd\]

View Answer
83) The first order rate constant for dissociation of\[{{N}_{2}}{{O}_{5}}\]is\[6.2\times {{10}^{-4}}{{s}^{-1}}\]. The half-life period (in s) of this dissociation will be

A)

1117.7

B)

111.7

C)

223.4

D)

160.9

View Answer
84) The IUPAC name of the compound is

A)

2-ethyl-2-methyl-3-hexanone

B)

5-ethyl-5-methyl-4-hexanone

C)

5,5-dimethyl-4-heptanone

D)

3,3-dimethyl-4-heptanone

View Answer
85) Amides are converted to amines by the following reaction

A)

Perkin

B)

Claisen

C)

Hofmann

D)

Clemmensen

View Answer
86) The gas phase reaction of nitric oxide and bromine yields nitrosyi bromide \[2NO(g)+B{{r}_{2}}(g)\xrightarrow{{}}2NOBr(g)\] The rate law is rate\[=k{{[NO]}^{2}}[B{{r}_{2}}]\] The overall reaction order is

A)

1

B)

2

C)

3

D)

4

View Answer
87) Fungicides are organic compounds of

A)

mercury

B)

fluorine

C)

lead

D)

chlorine

View Answer
88) Reaction of ester with Grignard reagent give rise to

A)

primary alcohol

B)

secondary alcohol

C)

tertiary alcohol

D)

ketone

View Answer
89) The formula of nylon is

A)

\[-{{[OC{{(C{{H}_{2}})}_{6}}-CONH-{{(C{{H}_{2}})}_{4}}-NH-]}_{n}}\]

B)

\[-{{[OC{{(C{{H}_{2}})}_{4}}-CONH-{{(C{{H}_{2}})}_{6}}-NH-]}_{n}}\]

C)

\[-{{[OC{{(C{{H}_{2}})}_{3}}-CONH-{{(C{{H}_{2}})}_{6}}-NH-]}_{n}}\]

D)

\[-{{[OC{{(C{{H}_{2}})}_{2}}-CONH-{{(C{{H}_{2}})}_{6}}-NH-]}_{n}}\]

View Answer
90) \[CO\]binds itself to metal atoms through

A)

carbon atom only

B)

oxygen atom only

C)

carbon and oxygen atom

D)

does not bind

View Answer
91) Two molecules of acetone in presence of dil. \[NaOH\]give the product

A)

4-methyl-2-pentanone

B)

4-hydroxy-2-pentanal

C)

3-hydroxy isopropyl propanone

D)

4-hydroxy-4-methyl-2-pentanone

View Answer
92) In the periodic table actinides occupy

A)

III B group in 7th row

B)

III B group in 6th row

C)

IIIB group in 5th row

D)

None of the above

View Answer
93) Diborane is used for reduction of

A)

carboxylic acids

B)

esters

C)

nitro groups

D)

Both and

View Answer
94) During electrochemical process

A)

Gibbs free energy increases

B)

Gibbs free energy remains constant

C)

no prediction can be made about Gibbs free energy

D)

Gibbs free energy decreases

View Answer
95) For endothermic reaction

A)

\[{{E}_{a}}>E_{a}^{'}\]

B)

\[{{E}_{a}}=E_{a}^{'}\]

C)

\[{{E}_{a}}<E_{a}^{'}\]

D)

None of these

View Answer
96) At same temperature which pair of the following solutions are isotonic?

A)

\[0.2\text{ }M\text{ }BaC{{l}_{2}}\]and 0.2 M urea

B)

0.1 M urea and\[0.1\text{ }M\text{ }NaCl\]

C)

\[0.1\text{ }M\text{ }NaCl\]and\[0.1\text{ }M\,{{K}_{2}}S{{O}_{4}}\]

D)

\[0.1\text{ }M\text{ }Ba{{(N{{O}_{3}})}_{2}}\]and\[0.1\text{ }M\text{ }N{{a}_{2}}S{{O}_{4}}\]

View Answer
97) \[R-OH+SOC{{l}_{2}}\xrightarrow{Pyridine}R-Cl+S{{O}_{2}}+HCl\]Pyridine in the above reaction

A)

catalyse the reaction

B)

used to dissolve alkyl chloride

C)

used to remove excess of\[SOC{{l}_{2}}\]

D)

None of the above

View Answer
98) Which of the following is diamagnetic?

A)

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

B)

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

C)

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

D)

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

View Answer
99) Which of the following changes with change in temperature?

A)

Mole fraction

B)

Formality

C)

% (w/W)

D)

Molality

View Answer
100) Which of the following has least boiling point?

A)

Ethyl ether

B)

n-propyl chloride

C)

n-butyraldehyde

D)

n-butyl alcohol

View Answer
101) \[{{N}_{2}}\]gas is liberated when\[[HCl+NaN{{O}_{2}}]\]reacts with the following compound \[C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}\]          Urea \[C{{H}_{3}}CON{{H}_{2}}\]         \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\] The answer is

A)

a, b, c

B)

a, b, d

C)

a, c, d

D)

b, c, d

View Answer
102) The main constituent of most natural fibres is

A)

starch

B)

glycol

C)

cellulose

D)

caprolactum

View Answer
103) d(+) lactic acid is obtained from

A)

fermentation of cane sugar

B)

green vegetables

C)

muscles

D)

fermentation of milk sugar

View Answer
104) When\[_{13}^{27}Al\]is bombarded with a-particle, a radioactive isotope of phosphorus\[_{15}^{30}P\]is formed. Which particle is emitted along with\[_{15}^{30}P\]?

A)

Deuteron

B)

Proton

C)

Electron

D)

Neutron

View Answer
105) The difference between heat of reaction at constant pressure and constant volume of the reaction \[2{{C}_{6}}{{H}_{6}}(l)+15{{O}_{2}}(g)\xrightarrow{{}}12C{{O}_{2}}(g)\] \[+6{{H}_{2}}O(l)\]at\[25{}^\circ C\](in kJ) is

A)

\[-7.43\]

B)

\[3.72\]

C)

\[-3.72\]

D)

\[7.43\]

View Answer
106) Why\[Sc(Z=21)\]is not considered as transition element?

A)

Properties of\[Sc\]are similar to alkali metals

B)

\[3d-\]orbitals are empty in its stable compound

C)

Stable oxidation number of\[Sc\]is\[+2\]

D)

Atomic volume of\[Sc\]is very large

View Answer
107) Methyl isocyanide on hydrolysis gives

A)

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

B)

\[HCOOH\]

C)

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

D)

Both and

View Answer
108) With\[C{{H}_{3}}MgBr,\]diethyl ether gives

A)

coordination complex

B)

n-butane

C)

a mixture of ethyl bromide and methyl bromide

D)

propane

View Answer
109) Acetamide when heated with\[PC{{l}_{5}},\]gives

A)

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

B)

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

C)

\[C{{H}_{3}}CC{{1}_{2}}N{{H}_{2}}\]

D)

\[CH{{C}_{12}}CON{{H}_{2}}\]

View Answer
110) The standard emf of a cell, involving one electron change is found to be 0.591 V at\[25{}^\circ C\]. The equilibrium constant of the reaction is (\[F=96500\text{ }C\text{ }mo{{l}^{-1}},\text{ }R=8.314\text{ }J{{K}^{-1}}mo{{l}^{-1}}\])

A)

\[1.0\times {{10}^{1}}\]

B)

\[1.0\times {{10}^{5}}\]

C)

\[1.0\times {{10}^{10}}\]

D)

\[1.0\times {{10}^{30}}\]

View Answer
111) For which reaction will\[\Delta H-\Delta E=0\]? Assume that each reaction is carried out in an open container.

A)

\[2CO(g)+{{O}_{2}}(g)\xrightarrow{{}}2C{{O}_{2}}(g)\]

B)

\[PC{{l}_{5}}(g)\xrightarrow{{}}PC{{l}_{3}}(g)+C{{l}_{2}}(g)\]

C)

\[{{H}_{2}}(g)+B{{r}_{2}}(g)\xrightarrow{{}}2HBr(g)\]

D)

\[C(s)+2{{H}_{2}}O(g)\xrightarrow{{}}2{{H}_{2}}(g)+C{{O}_{2}}(g)\]

View Answer
112) The type of bond that is most important in maintaining secondary structure of a protein is

A)

disulphide bridges

B)

hydrogen bonding within the backbone

C)

hydrogen bonding between R group

D)

salt bridges

View Answer
113) The angle\[\angle ROR\]is

A)

\[109{}^\circ 28'\]

B)

\[95{}^\circ \]

C)

\[110{}^\circ \]

D)

\[105{}^\circ \]

View Answer
114) The properties of\[Zr\]and\[Hf\]are same because

A)

they have similar radii

B)

they belong to d-block

C)

they have same valence electrons

D)

None of the above

View Answer
115) Which of the following is added to food for the flavour of meat?

A)

Sodium benzoate

B)

Sodium lactate

C)

Sodium citrate

D)

Sodium glutamate

View Answer
116) The molarity of a\[0.2\text{ }N\text{ }N{{a}_{2}}C{{O}_{3}}\]solution will be

A)

0.05 M

B)

0.2 M

C)

0.4 M

D)

0.1M

View Answer
117) Which is not a colligative property?

A)

Refractive index

B)

Lowering of vapour pressure

C)

Depression in freezing point

D)

Elevation in boiling point

View Answer
118) \[RN{{O}_{2}}\]is reduced with\[Sn/HCl\]. Product formed is

A)

\[RNHOH\]

B)

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

C)

\[RNH_{3}^{+}\]

D)

\[{{R}_{2}}NH\]

View Answer
119) A bottle of cold drink contains 200 mL liquid in which\[C{{O}_{2}}\]is 0.1 molar. Suppose\[C{{O}_{2}}\]behaves like an ideal gas, the volume of the dissolved C02 at STP is

A)

0.224 L

B)

22.4 L

C)

0.448 L

D)

44.8 L

View Answer
120) If 8.0 g of a radioactive isotope has a half-life of 10 yr. The half-life of 2.0 g of the same substance is

A)

\[2.5\text{ }yr\]

B)

\[5\,yr\]

C)

\[20yr\]

D)

\[10\text{ }yr\]

View Answer
121) Proximal and distal convoluted tubules are parts of a

A)

nephron

B)

oviduct

C)

vas deferens

D)

caecum

View Answer
122) Heart sound dub is caused due to closing of

A)

valve

B)

tricuspid valve

C)

                semilunar valve

D)

None of the above

View Answer
123) Posterior pituitary gland

A)

                produces and store hormones

B)

                stores 6 trophic hormones

C)

                stores and releases ADH and oxytocin

D)

                release and store growth and thyroid

View Answer
124) stimulating hormone Inflammation response in                 allergy is caused by release of one of the following by mast cells

A)

                antigenes

B)

histamine

C)

                immunogenes

D)

immunoglobulin

View Answer
125) Phase of menstrual cycle when ovulation occurs in

A)

luteal

B)

menstrual

C)

proliferative

D)

secretory

View Answer
126) Process of maturation and development of sperms is called

A)

oogenesis

B)

spermatogenesis

C)

spermiogenesis

D)

None of these

View Answer
127) The instrument used for measuring blood pressure is

A)

electrocardiograph

B)

X-rays

C)

sphygmomanometer

D)

electroencephalograph

View Answer
128) Heart beat originates from

A)

pace-maker

B)

cardiac muscles

C)

left atrium

D)

right ventricle

View Answer
129) Cranial nerve showing maximum branching is

A)

trigeminal

B)

vagus

C)

optic

D)

facial

View Answer
130) AZT is the treatment of

A)

malaria

B)

AIDS

C)

TB

D)

kala-azar

View Answer
131) Gonadotrophins are secreted from

A)

gonads

B)

anterior pituitary

C)

posterior pituitary

D)

thyroid

View Answer
132) Earthworms are economically important for man as these are used as

A)

bait for catching fish

B)

food of poultry

C)

medicine for gout

D)

All of the above

View Answer
133) Which of the following is a mismatch?

A)

                Amphetamine?a stimulant

B)

                Morphine ? an opiate narcotic

C)

                LSD ? a hallucinogen

D)

                Cocaine ? a sedative/ tranquillizer

View Answer
134) Which of the following is not related to sex chromosome X or Y?

A)

                Turner's syndrome

B)

                Klinefelter's syndrome

C)

                Down's syndrome

D)

                Haemophilia and colour blindness

View Answer
135) Which of the following is a pan of pectoral girdle?

A)

Ilium

B)

Ischium

C)

Acetabulum

D)

Glenoid cavity

View Answer
136) Water vascular system is characteristic of

A)

Protozoa

B)

Porifera

C)

Annelida

D)

Echinodermata

View Answer
137) Taxonomically, which of the following set is matched correctly?

A)

                Cattle fish, jelly fish, silver fish

B)

                Bat, pigeon, kite

C)

                Lobsters, spider, shrimps

D)

                Oyster, otter, Octopus

View Answer
138) A normal woman is married with a man having hypertrichosis condition. They got one daughter and one son. What is the possibility of this daughter to have hypertrichosis condition?

A)

0%

B)

25%

C)

50%

D)

100%

View Answer
139) The centrum of eighth vertebra of frog is

A)

procoelous

B)

heterocoelous

C)

amphicoelous

D)

opisrhocoelous

View Answer
140) Which one of the following animals lay eggs yet                the female secretes milk?

A)

                Bat

B)

Kangaroo

C)

                Platypus

D)

Ostrich

View Answer
141) In human eyes, colour perception is done by

A)

rod cells only

B)

cone cells only

C)

Both and

D)

choroid layer cells

View Answer
142) Which of the following embryonic membranes structure is excretory in function?

A)

Amnion

B)

Allantois

C)

Yolk sac

D)

Vitelline chorion

View Answer
143) Which of the following is a mismatch?

A)

Giraffe - Lamarck

B)

Drosophila - Morgan

C)

Galapagos island - Darwin's finches

D)

Origin of species - Mendel

View Answer
144) Which of the following type of cartilage is found in intervertebral disc of mammal?

A)

Hyaline cartilage

B)

Fibrous cartilage

C)

Calcified cartilage

D)

Elastic cartilage

View Answer
145) Archaeopteryx is

A)

                a living fossil

B)

                a mammal

C)

                a connecting link between Annelida and Arthropoda

D)

                a connecting link between reptiles and birds

View Answer
146) Which of the following set is a mis-match?

A)

                Phosphoenol pyruvate carboxykinase ? Gluconeogenesis

B)

                Phospho fructokinase                                   ? Glycolysis

C)

                Succinate dehydrogenase                                           ? Kerbs cycle

D)

                Urease                                                                                ? Urea cycle

View Answer
147) A woman has a haemophilic son and three normal children. Her genotype and that of her husband with respect to this gene would be

A)

\[~XX\] and \[{{X}^{h}}Y\]

B)

\[{{X}^{h}}{{X}^{h}}\]and \[{{X}^{h}}Y\]

C)

\[{{X}^{h}}{{X}^{h}}\]and \[XY\]

D)

\[{{X}^{h}}Y\]and \[XY\]

View Answer
148) The causative agent of filaria is

A)

                Wucherena bancrofti

B)

                Leishmania donovani

C)

                Plasmodium vivax

D)

                Trypanosoma gambiens

View Answer
149) Pernicious anaemia is caused due to

A)

                absence of vitamin-K

B)

                lackofvitamin-\[{{B}_{12}}\]

C)

                lack of vitamin-C

D)

                presence of intrinsic factor

View Answer
150) How many molecules of oxygen can bind to a molecule of haemoglobin?

A)

One

B)

Two

C)

Three

D)

Four

View Answer
151) Who proved that oxygen evolved in photosynthesis comes from water?

A)

Mayer

B)

Calvin

C)

Ruben, Hassid and Kamen

D)

Blackman

View Answer
152) \[2AD({{H}^{+}})\] produced   during   anaerobic glycolysis yield

A)

6 ATP molecules

B)

4 ATP molecules

C)

8 ATP molecules

D)

None of these

View Answer
153) Wilting of leaves at noon and their recovery toward evening is known as

A)

incipient wilting

B)

temporary wilting

C)

midday desiccation

D)

permanent wilting

View Answer
154) Which of the following induces and promotes cell division?

A)

ABA

B)

Auxin

C)

Cytokinin

D)

Gibberellin

View Answer
155) Artificial application of auxins like IAA, IBA and NAA to unpollinated pistils can form

A)

fruits with much flash

B)

larger fruits

C)

sweet fruits

D)

seedless fruits

View Answer
156) Vaccines prepared by genetic engineering are safe to man because they are

A)

least active form of virus

B)

active form of virus

C)

coat protein formed as antibody

D)

All of the above

View Answer
157) Wildlife is destroyed most when

A)

there is lack of proper care

B)

mass scale hunting for foreign trade

C)

its natural habitat is destroyed

D)

natural calamity

View Answer
158) Intemodal elongation is stimulated by

A)

auxin

B)

cytokinin

C)

gibberellin

D)

phenol

View Answer
159) In the electron transport chain, in terminal oxidation, the cytochrome, which donates electrons to \[{{O}_{2}}\] is

A)

cytochrome-\[b\]

B)

cytochrome-\[c\]

C)

cytochrome-\[{{a}_{3}}\]

D)

cytochrome-\[a\]

View Answer
160) Stomata open or close due to the ion

A)

\[C{{a}^{2+}}\]

B)

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

C)

\[~{{K}^{+}}\]

D)

\[C{{u}^{+}}\]

View Answer
161) Science of engineering and technology applied to life sciences is

A)

Biotechnology

B)

Genetic engineering

C)

Pathology

D)

Biological science

View Answer
162) Which of the following is generally used in chronic diarrhoea, dysentery, bleeding, piles, leucorrnoea etc?

A)

Quinine

B)

Ephidrine

C)

Chir

D)

Cattha

View Answer
163) Flash of light in dark inhibits flowering in

A)

SDP

B)

LDP

C)

LSDP

D)

DNP

View Answer
164) The growth of pollen tube towards embiyo sac is

A)

geotropism

B)

chemotaxis

C)

thigmotaxis

D)

phototaxis

View Answer
165) The specific character of \[{{C}_{4}}\]plants is

A)

bulli form cells

B)

Kranz anatomy

C)

parallel venation

D)

isobilateral leaf

View Answer
166) Triticum vulgare has been found to be presently evolved as

A)

diploid

B)

tetraploid

C)

pentaploid

D)

hexaploid

View Answer
167) Which of the following clogs the cavity of the xylem vessels?

A)

Tylosis

B)

Cystolith

C)

Hydathode

D)

Raphide

View Answer
168) Which of the following has multiflagellate sperms?

A)

Equisetum

B)

Riccia

C)

Lycopodium

D)

Anthoceros

View Answer
169) Which of the following is important source of edible protein?

A)

Spirogyra

B)

Porphyra

C)

spirulina

D)

Cephaleuros

View Answer
170) The character found only in halophytes is

A)

sunken stomata

B)

vivipary

C)

velamen tissue

D)

heterophylly

View Answer
171) A hyaline bisexual and self-fertilized flower that does not open at all is

A)

chasmogamaus

B)

apogamous

C)

cleistogamous

D)

polygamous

View Answer
172) Which one of the following is a pseudo carp?

A)

Apple

B)

Guava

C)

Tomato

D)

Banana

View Answer
173) Largest moss is

A)

Pogonatum

B)

Funaria

C)

Dawsonia

D)

Polytrichum

View Answer
174) Late blight of potato is caused by

A)

Cystopus

B)

Phytophchora

C)

Altenaria

D)

Ustilago

View Answer
175) The smallest free living organism is

A)

virus

B)

mycoplasma

C)

diatom

D)

cyanobacterium

View Answer
176) Name the fungus that is edible

A)

Penicillium

B)

Mucor

C)

Rhizopus

D)

Morchella

View Answer
177) The number of RNA molecules in 60S sub-particles of 80S ribosomes are

A)

five

B)

four

C)

three

D)

two

View Answer
178) The mutagenic agent among following is

A)

ethyl methane

B)

ethylene

C)

2,4-D

D)

IAA

View Answer
179) Ribosomal RNA (rRNA) is synthesized in

A)

nucleolus

B)

nucleosome

C)

cytoplasm

D)

ribosome

View Answer
180) Plant length is increased by

A)

apical meristem

B)

lateral meristem

C)

dermatogen

D)

periblem

View Answer

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