1. Which one of the following is a hermaphrodite

Cockroach

Leech

Hydra

Sea urchin

2. The birds show one of the following

Viviparity

Ovoviviparity

Oviparity

Ovovivipary

3. Transfer ofpollen grains from the anther to the stigma of a different plant

Geitonogamy

Autogamy

Anemophily

Xenogamy

4. The portion of the embryonal axis above the level of cotyledons is

Epicotyl

Hypocotyl

Scutellum

Coleorlllza

5. Klinefelter Syndrome is characterized by

The presence of an additional copy of I3-chromosome

The absence of one of the X-chromosome

The presence of an additional copy of 21-chromosome

The presence of an additional copy of X-chromosome XXV

6. Which one of the following is transcriptionally active

Euchromatin

Heterochromatin

Histone

Sugar Phosphate

7. The amino acids are coded by

57 codons

61 codons

33 codons

31 codons

8. The wings of butterfly and of birds look alike performing similar functions. This is an example of

Divergent Evolution

Convergent Evolution

Determinism and Adaptive Radiation

Anthropogenic Evolution

9. The enzyme responsible for initiating DNA replication in prokaryotes is

DNA polymerase

DNA ligase

Beta-galactosidase

Restriction endonuclease

10. Cross breeding is

Breeding between animals of same breed

Breeding between superior males of one breed with superior females of other breed

Breeding between animals of different breed

Breeding between inferior males of one breed with inferior females of other breed

11. The following is used in production of biogas

Lactobacillus

Methanobacterium

Saccharomyces

Propionibacterium

12. The lichens are example of

Parasitism

Commensalism

Amensalism

Mutualism

13. Following is a Moss

Selanginella

Sphagnum

Chlamydomonas

Cycas

14. Chordates are characterized by

Presence of ventral heart

Absence of Post-anal tail

Absence of Gill slits

Presence of ventra1ccntral nervous system

15. Coelom is absent in

Echinodermata

Annelida

Platyhelminths

Mollusca

16. Following is a modification of leaf in Peas

Petiole

Tendril

Cymose

Corolla

17. The placentation in tomato is

Marginal

Axile

Basal

Parietal

18. The bark of a tree comprises of

All the tissues outside the cork cambium

All the tissues outside the vascular cambium

Only cork

Just inside cork cambium

19. Annual rings arc distinct in plants growing in

Temperate regions

Tropical regions

Grasslands

Arctic regions

20. Collagen is a

lipid

carbohydrate

fibrous protein

globular protein

21. In cockroach, excretion is performed by

Renette cells

Flame cells

Nephridia

Malpighian tubules

22. Identify the nonmembranous organelle from following

Ribosome

Endoplasmic reticulum

Nucleus

Chloroplast

23. Smooth endoplasmic reticulum is the site of

Protein synthesis

Carbohydrate synthesis

Aminoacid synthesis

Lipid synthesis

24. Microtubules are involved in

Cell division

DNA recognition

Muscle contraction

Membrane contraction

25. Which stage is linked to DNA replication

S-phase

Gl Phase

G2 Phase

Metaphase

26. Which of the following shows anisotropy?

Naphthalene

Polyurathane

Cellophane

Teflon

27. The relation between oxygen and ozone is

Isomers

Allotropes and oxygen is a weaker oxidizing agent than ozone

Allotropes with different oxidation state

Isomorphous

28. The bonding or attractive forces which lead to solidify CCG

Dispersion or London forces

Hydrogen bonding

Coulombic or electrostatic interactions

Dipole-dipole interactions

29. The correct statement about hexagonal and rhombohedral crystals is

Both have all three sides of same lengtth

Both have all angles same

Hexagonal has all sides of equal length, whereas rhombohedral has one side different in length than the other two.

Hexagonal has one side different in length than the other two, whereas rhombohedral has all sides of equal length.

30. The acid concentration found in a commercial soft drink is 4.5 x 10,5 M. The pH of the drink is

4.3

5.3

4.5

5

31. Molarity of pure water is approximately

100

18

1

56

32. The attribute not related to colligative properties is

Lowering of vapour pressure

Depression in freezing point

Lowering of density

Elevation of boiling point

33. If at a constant temperature, two solutions A and B are separated by a semipermeable membrane and still there is no osmosis occurs between them than

Both solutions are hypertonic

Both solutions are hypotonic

A is hypertonic solution and B is hypotonic solution

Both arc isotonic solutions

34. The radioactive decay of U235 is a reaction of which order

0

1

2

1/2

35. To a galvanic cell having electrodes of zinc and copper dipping in the solutions of their respective salts having concentration of 1 mol each and has an electrical potential equal to 1.1 V electrolytic cell, if an external opposing potential of 1.1 V is applied then

No reaction occurs

Zn dissolves at Zn-electrode and Cu deposits at Cu-electrode

Zn deposits at Zn-electrode and Cu dissolves at Cu-electrode

Zn deposits at Zn-eJectrode and Cu deposits at Cu-electrode

36. For a general reaction aA bB cC dD, the rate of the reaction

a-b

a+b

Can only be detern1ined experimentally

c+d

37. The incorrect statement regarding colloidal particles is

Colloidal particles display Tindall effect.

Colloidal particles display a highly ordered movement when viewed under a powerful ultramicroscope.

The colour of colloidal solution depends on the wavelength of light scattered by the dispersed particles.

Colloidal particles always carry an electric charge.

38. The incorrect statement about cryolite is

Its formula is Na3AlF6.

It is used in the metallurgy of aluminium from bauxite.

Molten cryolite reduces the melting point of Al203 upon mixing.

Molten Al203 reduces the melting point of cryolite upon mixing.

39. Among the following molecules, the one possessing linear structure is

N02

N20

H20

H202

40. The maximum oxidation state that can be displayed by 3d-transition elements is









41. Both Cr2+ and Mn3+ have d4 configuration. Which of the following statement(s) is/are true?

Both are oxidizing agents

Both are reducing agents

Cr2 is oxidizing and Mn3+ reducing agents

Cr2 is reducing and Mn3+ oxidizing agents

42. In the electromagnetic spectrum, the one with highest energy among the following is

Visible light

Ultraviolet light

Gamma-rays

Radiowave

43. In qualitative analysis, Nessler's reagent is used for the confirmation of which ion?

Mg2+

Na+



NH4+

44. CaC2 upon reaction with water produces Ca(OHh and

Methane

Ethane

Ethylene

Acetylene

45. In the Friedel-Crafts acylation reaction, the electrophile is

C6H5+

C6H5CH2+

CH3CO+

AlC4+

46. Benzenediazonium salt can be directly prepared from

Aniline

Phenol

Chlorobenzene

Nitrobenzene

47. The IUPAC name of the following compound is

<img src='./qimages/15976-47.jpg'>

2-Nitro-3,3-dimethyl-4-chloropentane

2-Chloro-3,3-dimcthyl-4-nitropentane

2-Chloro-3,3'-dimethyl-4-nitropentane

2-Nitro-3.3'-dimethyl-4-chloropentane

48. The reaction

<img src='./qimages/15976-48.jpg'>

is known as

Cataly1ic reduction

Clemmensen reduction

Wolff-Kishner reduction

Rosenmund reduction

49. In PCIs, the hybridization of phosphorous is

sp^3d

dsp^2

sp^3

sp^3d^2

50. In presence of catalytic acid or base, bakelite is produced during the reaction of phenol with

Acetone

Formaldehyde

Acetaldehyde

Benzaldehyde

51. The points and are equidistant from









52. The perpendicular line from origin to a plane meets the plane at 2). The equation of the plane is

x y Z=9

3x 4y 2z 29

2x y z=0

x y z 5

53. If a circle passes through and has x 2 and 2x 3y 14 as diameters. the radius of the circle is

2

3

4

5

54. (tan -sin is

2



1/2



55. Let y =10e^x -2. Then is

0

Y





56. Let y sqrtx+ sqrtx+sqrtx+ Then (2y is

O

1



None of the above

57. is

5



6i)/13



58. (Modulus, principal argument) of(1 is

(sqrt2,

(sqrt2,





59. Coefficient of x^2y^3z^4 in(xy yz is

40

50

60

None of the above

60. The coefficient of seventh term in the expansion of is

11

11 C 7

11 C 8

11 C 6

61. Let log for every a with 0 a 1. a^2 is







None of the above.

62. Which of the following is divisible by 9 for all n EN?

0^n 1

3^n 3n

4^n 3n 1

10^n 1

63. For every n E is always divisible by

4

6

8

12

64. Let M2 be the set of all x matrices with real numbers. Det: M2 defined as Det determinant of A is

one-one

onto

bijective

None of the above

65. Let 2A B

4 3 5
1 2 0
0 1 and A +3B

2 5 7
3 1 0
0 9 11

Then trace of is

l

2

4

0

66. Let band c be unit vectors, no two of them collinear. Suppose ax(b xc) b . Then angle between a and b is

n/2

n/4

n/6

n/3

67. Let E E2 and E3 be three mutually exclusive events with Pi for all i 3. Suppose Pi P2 and P3 Then p can be



1



None of the above

68. A and B are two sets with 5 and 6. The no. of one-one functions from A to B is

25

120

360

720

69. The three vertices of a triangle are 43) and where a and b are roots of the equation 5x^2 3x 20 0. The area of the triangle is

2521

2621

2721

None of the above

70. The point goes through the transformations below in the following order: First, it gets reflected with respect to X axis, then it gets translated in the positive direction of Y axis by 4 units and then is ref1ected with respect to the line x y . The final position of the point is









71. A function f is defined on 3]. The function has domain







None of the above

72. Let S be the set of all x matrices with 0 and 1 as entries. The probability of a matrix in S being nonsingular is

3/16

1/4

3/8

None of the above

73. f and g are two functions defined on R . Suppose Lim exists. Then

Lim exists

Lim exists

Both Lim and Lim exist

None of the above

74. For c E the points b c and(c, a are

vertices of an equilateral triangle

vertices of a right angled triangle

collinear

None of the above

75. Suppose

1 x
tan(0) 1 1

a
b a then

a b 1

a cos b 2sin

a sin h 2cos

None of the above.

76. If two vectors a and B are oriented to each other such that what is the angle between them.

0°

45°

90°

180°

77. Two discs of equal radius r and equal volumes are made with materials of different densities P1 and P2, the moment of inertias I1 and I2 about the axis passing though the center and perpendicular to the plane of the disk, are related as

I1 I2

I1 p1p2I2

I1 I2p1/p2

I1 I2p2/P1

78. A meteorite experiences a drag force as it enters the atmosphere given by D where v is the instantaneous velocity and K is a constant which depends on its shape. The terminal velocity Vf of the meteorite is given by









79. A particle moving along the x-axis such that its position (from the origin) x meters at an instant of time t sec. is given by x 7.9 17t The most appropriate statement about the motion of this particle is

Uniform

Uniformly accelerating

Deaccelerating

Uniformly deaccelerating

80. A body of mass 5 kg is moving along positive x-axis under the action of uniform force of 25 N acting along the positive direction. Its velocity at a distance 20 m from the origin is 10 m/s. Its velocity at point 50 m from the origin and time taken to reach this point are

20 2s

-20 2s

10 2s

10 2s

81. A stone is thrown with an initial velocity 5 m/s such that it covers maximum possible horizontal distance RM meters on the surface of the moon. The same stone is thrown with same initial velocity by a person standing on the earth, making an angle of 15° with the horizontal surface. Given that ,Ax 9,8 and Am= 1.6 the horizontal distance it covers on earth surface is

9.8 RM meters

9.8/RM meters

RM/9.8 meters

RM/4.9 meters

82. A body of mass in kg is constrained to move along a circle of radius m. At a given instant, its speed is km/S and the speed is increasing at the rate of a m/s^2.The angle between particle's velocity and acceleration is

0°

30°

45°

90°

83. The potential on the surface of a solid conducting sphere of radius r 20 cm is 100 V and the potential at r 10 cm is

100 V

50 V

25 V

zero

84. A particle of charge q1 is placed at a and another of charge q2 is placed at x=-2a. For the net force on a third charged particle at placed at the origin to be zero, q2 must equal to

2q1

4q1

-2q1

-4q1

85. Charge Q is distributed uniformly throughout an insulating solid sphere of radius R. The magnitude of the electric field at a point 2R/3 from the center is

Q/6nEOR2

Q/8nEOR2

Q/72nEO/R2

llQ/18nEOR2

86. A given semiconductor Si is to be doped with the following element to make it n-type semiconductor

Al

Ge

P

S

87. An electron is launched with velocity r in a uniform magnetic field B . The angle 8 between v and B is in the range of 0° and 90°. As a result, the electron follows a helical path, its velocity vector r returning to its initial value in a time interval of

(2nID tan8)/eB

(2nD cot8)/eB

(2nD sin

(2nm cos

88. The magnitude of the magnetic field at point at the center of the semicircle shown, is given by

<img src='./qimages/15976-88.jpg'>







lloi/2R

89. Air is pumped into a soap bubble of radius r to triple its radius. If the surface tension of the soap solution is then the work done in the process is



l2'rrr:.l.S

16nr:.l.S

BnTzS

90. The change in volume of an indiarubber cord when stretched within the elastic limit, the change in volume is almost negligible compared with the change in shape, then the Poisson's ratio is

0

0.25

0.5

1

91. The units of Planck's constant h are same as those of

energy

Power

momentum

angular momentum

92. Possible values of the principal quantum number for an electron in atom are only

0 and 1



...x;



93. An ideal gas system from an initial state of pressure Po, volume Vo and temperature To is taken through an isochoric process till its pressure become three times the original pressure and subscquent1y, expanded isothermally till the pressure is Po again. The volume at the end of the isothermal process is

<img src='./qimages/15976-93.jpg'>

1/2 vo

vo

2vo

3 vo

94. An ice piece of mass lOO g at temperature 0°C is added to 200 g of water at How much ice will remain in the water, immediately after the temperature of the water reaches 0 The specific heat capacity of water is 4200 J and specific latent heat of fusion of ice is assumed to be 2.1 x l0^5 J

100g

50g

25g

0g 19

95. A solid at temperature T1 is kept in an evacuated chamber at temperature T2 >T1. The rate of increase of temperature Of the body is proportional to

T2-T1

T2^2-T1^2

T2^3-T1^3

T2^4-T1^4

96. A convex shaped contact lens is made of plastic whose refractive index is 1.50. The lens has an outer radius of curvature of 1.50 cm and inner radius curvature of 2.25 cm. The focal length of the lens is

1.80 cm

4.50 cm

9.00 cm

9.50 cm

97. An organ pipe with both ends open is 1.5 m long. Assuming that the speed of sound is 340 the frequency of the third harmonic of this pipe is

170 Hz

340 Hz

680 Hz

900 Hz

98. While standing at a cross walk, you hear a sound with frequency of 560 Hz from an approaching police car. After the police car passes and is moving away from you, you hear the sound with a frequency of 480 Hz.If the velocity of sound is V then the speed of the police car is

2V/13 m/s

V/13 m/s

V/26m/s

V/39 m/s

99. A detector placed at 5 m from a candle in a large, otherwise dark room receives a power of about 2 x W. The power of light received by the detector when placed at a distance of lOrn from candle is

2.0 X10^-9W

2.0 X10^-8W

5.0x 10^-8W

8.0 X10^8W

100. Unpolarized light emitting from a laser source has energy of 12 watts. This laser beam is passed through the pair of polarizer analyzer, which are kept at a relative angle of 45°. The output energy of the light after it emerges from the analyzer is

3 watts

4 watts

6 watts

9 watts