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1. The maximum number of electrons which can be accommodated in all the orbitals withprincipal quantum number 3 and azimuthally quantum number2, is

a. 2 b. 8

c. 10 d. 18

2. The statement, All the four quantum numbers for two electrons in an atom can not be thesame is known by which of the following?

a. Heisenberg uncertainty principle b. Pauli,s exclusion principle

c. Hand,s rule d. Aufbau

,s principle

3. An atom has 2 electrons in K shell, 8 electrons in L shell and 6 electrons in M shell. The numberof s- electrons present in that element is

a. 6 b. 5

c. 7 d. 10

4. Principal, azimuthally and magnetic quantum numbers are respectively related toa. Size, orientation and shape b. Size, shape and orientation

c. Shape, size and orientation d. Shape, size and spin of electron

5. After filling of 3d orbitals, the new electron will enter ina. 4s b. 4p

c. 4d d. None of these

6. Which of the following set of quantum numbers is impossible?a. n = 3, l = 2, m = -2, s = b. n = 4 ,l = 3, m = 3, s =

c. n = 5, l = 4, m = 2, s = d. n = 3, l = 3, m = - 3, s =

7. How many unpaired electrons are there in Ni2+ (Z = 28)a. 0 b. 2

c. 4 d. 8

8. Which of the following ions does not have the configuration of Ne?a. Cl

-b. F

-

c. Na+ d. Mg2+

9. For which one of the following set of quantum number an electron will have the highest energya. 3, 2, 1, b. 4, 2, - 1,

c. 4, 1, 0 ,-1/2 d. 5, 0, 0 ,1/2

10.The electronic configuration of an element is 1s22s22p23s23p6 3d54s. this represent itsa. excited state b. ground state

c. cationic from d. anionic from

11.Which of the following will be octahedral?a. SF6 b. BF4-

c. PSI5 d. BO33-

12.Shape of H3O+ isa. Tetrahedral b. Angular

c. Pyramidal d. Trigonal planar

13.Carbon in carbon dioxide molecule is :

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a. sp hybridized b. sp2

hybridized

c. sp3

hybridized d. dsp2

hybridized

14.The compound 1, 2-butadiene has :a. Only sp hybridized carbon atoms b. Only sp2 hybridized carbon atoms

c. Both sp2 and sp3 hybridized carbon atoms

d. sp, sp2 and sp3 hybridized carbon atoms

15. In piper dine NH the hybrid state assumed by N isa. sp b. sp

2

c. sp3

d. dsp2

16.The calculated bond order in H2- ion isa. o b.

c. d. 117.The electronic configuration of metal M is 1s22s22p63s1. The formula of its oxide will be

a. MO b. M2O

c. M2O2 d. MO218.Of the following, the substance which has the highest boiling point

a. H2S b. H2Se

c. H2 Te d. H2O

19.Number of bonds in naphthalene isa. 6 b. 3

c. 4 d. 5

20.The bond order of O2- isa. 1 b. 1.5

c. 2.5 d. 3

21.Which of the following has IntermolecularH-bonding ?a. o-nitro phenol b. p- nitro phenol

c. phenol d. Benzene

22.The number of electron that are paired according to MO theory in oxygen molecule isa. 16 b. 12

c. 7 d. 14

23.Consider the iso- electronic series: K+, S2- , CI-and Ca2+. The radii of the ions decrease as:a. Ca

2+> K

+> CI

-> S

2-b. CI

-> S

2-> K

+> Ca

2+

c. S2-

> CI-> K

+> Ca

2+d. none of these

24.Which of the following is most metallic?a. P b. A sc. Sb c. Bi

25.The energy 349kJ mol-1 evolved in the following chemical reaction CI (g) + e-CI- (g) + 349kJ iscalled

a. Ionization energy b. Electron affinity

c. Electro negativity d. Bond energy

26.Diagonal relationship in periodic table is shown by the elements of :

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a. First with second period b. Second with third period

c. Third with fourth period d. None of these

27.The largest size out of Na+ , Ne, F- isa. Na+ b. Ne

c. F- All are equal

28.Which of the following is best oxidizing agent?a. F2 b. CI

2

c. O2 d. Br2

29.Beryllium shows diagonal relationship with :a. Mg b. AI

c. Li d. Si

30.Which of the following is most soluble in water?a. Be(OH)2 b. Mg(OH)2

c. Ca(OH)2 d. Ba(OH)2

31.The domain of the function f (x) =

is

a. * + *

+ b. [-1, 1]c. none of these d. * +

32.The domain of the function f (x) = -1 + [log (3 x )]-1 isa. [ - 6, 3)\{2} b. [- 6, 2) (2, 3]b. [- 6, 3] d. [-6, 3)

33.The period of the function f (x) = |sin 4x|+ |cos4x|isa. /2 b. /8

c. /4 d. none of these

34. (sin x) is equal toa. 1 b. -1

c. 0 d. none of these

35. If f (x), g(x) be differentiable functions and f (1) = g(1) = 2 then ()() ()() () ()() () is equal toa. 0 b. 1


36.The values of constant a and b so that a. a =1, b = - 1 b. a = -1, b = 1

c. a = 0, b = 0 d. a = 0, b = -1

37. () a. exit and it equals b. exit and it equal - c. none of these d. does not exist

38. () is equal toa. 1 b. 1

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c. 1/3 d. none of these

39. If f(x) = [x 2 ], thena. f(2.5) = and f(5) = 3 c. f(2.5.) = 0 and f(5) does not exit

b. f(2.5) = 0 and f(5) = 3 d. none of these

40. If y = a.

b.

()


41. If (x) = |cos xsin x | then f a. 1 b. 1


42. If f(x) = log()() m (1) = n (1) = 1 and m(1) n(1) = 2 then f(1) is equal toa. 0 b. 1


43. If 8f (x) + 6f = x +5 and y = x2 f(x), then at x = - 1 is equal toa. 0 b. 1/14

c. b. none of these44.Let f be a function defined for all x . If f is differentiable and f (x3) = x5 for all x ( )

then the value of f(27) is

a. 15 b. 45


45. If the slope of the curve y = at the point (1 ,1) is 2, then the values of a and b area. 1 ,-2 b. -1, 2

c. 1 ,2 d. none of these

46.The tangent to the curve is equally inclined to the axes at the pointa. (1, 2)

b. (4, 4)

c. (4, -4) d. (- 4, 4)

47. If the line ax + by + c is a tangent to the curve xy = 4, thena. a > 0, b > o b. a > 0, b < 0

c. a < 0 ,b > 0 d. a < 0, b < 0

48.The equation of the tangent to the parabola y2 = 16x inclined at an angle of 60

to x-axis, is

a. 3x - c. d. none of these

49.The equation of the tangent to the parabola y2 = 16 perpendicular to the line 2x y + 5 = 0 isa. 2x y +2 = 0 b. 2x + y +2 = 0

c. x + 2y 16 = 0 d. x + 2y + 16 = 0

50. If (0, 4) and (0, 2) are respectively the vertex and focus of a parabola, then the equation is

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a. x2

+8y = 32 b. y2

+ 8x = 32

c. x2 8y = 32 d. y

2 8x = 32

51. If the line 3x 4y + 5 = 0 is a tangent to the parabola y2 = 4ax, then a is equal toa. -5/4 b. -4/3

c. 5/4 d. 15/16

52.Locus of the center of a circle of radius 4 which touches the circle x2 + y2 4x + 2y = 0 externallyis

a. x2

+ y2 4x + 2y 44 = 0 b. x

2+ y

2+ 4x + 2y 44 = 0

c. x2

+ y2 4x 2y 44 = 0 d. none of these

53.The equation of the circle of radius 2 touching the circle x2 + y2 4 |x| = 0 isa. x2 + y2 + 2 x2 + y2 + = 0c. x

2+ y

2- 4 = 0 d. none of these

54.A variable circle passes through the point P(1, 2) and touches the x-axis. The locus of the otherend of the diameter through P is

a. (x 1)2

= 8y b. (x + 1)2

= 8y

c. (y 1)2

= 8x d. none of these

55.The equation of the image of the lines y = |x| by the line x = 2 isa. y = |x 4| b. |y| = x + 4

c. |y|+ 4 = x d. none of these

56.The line (p + 2q) x + (p 3q) y = p q for different values of p and q passes through the fixedpoint

a. b. (

)

c. d.

57.On the portion of the straight line x + y = 2 which is intercepted between the axes, a square isconstructed away from the origin, with this portion as one of its side. If p denotes the

perpendicular distance of a side of this square from the origin, then the maximum value of p is

a. c. 3 d. none of these

58.The image of the point (4, - 13 ) in the line 5x + y +6 = 0 isa. (1, 2) b. (-4, 13)

c. (-1, -14) d. (3, 4)

59.The new coordinates of a point (4, 5) when the origin is shifted to the point (1, -2) area. (5, 3) b. (3, 5)

c. (3, 7) d. none of these60. If the sum of distances of a point from two perpendicular lines in a plane is 1 then its locus is

a. square b. circle

c. straight line d. two intersecting lines

61. If in the circle, power dissipation is 150W, then R is :

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a.2 b. 6

c.5 d. 4

62. If a current is passed through a spring then the spring will:a. expand b. compress

c. remain same d. none of these

63.Electromagnetic waves are transverse in nature is evident by:a. polarization b. interference

c. reflection d. diffraction

64.By increasing the temperature, the specific resistance of a conductor and a semiconductora. increases for both b. decreases for both

c. increases, decreases respectively d. none of these

65. If an ammeter is to be used in place of a voltmeter, then we must connect with the ammeter aa. low resistance in parallel b. high resistance in parallel

c. high resistance in series d. none of these

66.On moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential differencebetween the points is

a. 0.1 V b. 8 V

c. 2 V d. 0.5 V

67. If an electron and a proton having same moment enter perpendicularly to a magnetic field, thena. curved path of electron and proton will be same b. they will move undefeated

c. path of proton is more curved d. none of these

68.A conducting square loop of side L and resistance R moves in its plane with a uniform velocityperpendicular to one of its sides. A magnetic induction B constant in time and space, pointing

perpendicular and in to the loop exist everywhere with half the loop outside the field, as shown

in figure. The induced emf is

a. zero b. RvB

c. vBL/R d. Vbl

69.The time period of a charged particle undergoing a circular motion in a uniform magnetic field isindependent of its

a. speed b. mass

c. charge d. none of these

70. If a charge q is placed at the center of the line joining two equal charges Q such that the systemis in equilibrium then the value of q is :

a. Q/2 b.Q/2

c. Q/4 d.Q/4

71.Capacitance of a spherical conductor having radius 1 m, isa. 1.1 x 10

-10b. 10

-6

c. 9 x 10-9

d. 10-3

72.A 3 volts battery with negligible internal resistance is connected in a circuit as shown in thefigure. The current I, in the circuit will be

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a. 1 A b. 1.5A

c. 2 A d. 1/3A

73.A strip of copper and another of germanium are cooled from room temperature to 80 K. Theresistance of

a. each of these decreases

b. copper strip decreases and that of germanium decreases

c. copper strip decreases and that of germanium increases

d. none of these

74.The difference in the variation of resistance with temperature in a metal and a semiconductorarises essentially due to the difference in the

a. crystal structure

b. variation of the number of charge carriers with temperature

c. type of bonding

d. none of these

75.An ammeter reads up to 1 ampere. Its internal resistances is 0.81 ohm. To increase the range to10 A, the value of the required shunt is of the required shunt is:

a. 0.003 b. 0.3

c. 0.9 d. 0.09

76.A 220 volt, 1000 watt bulb is connected across a 110 volts mains supply. The power consumedwill be

a. 750 w b. 500 w

c. 250w d. 1000 w

77.Alternating current can not be measured by D.C. ammeter becausea. A.C. cannot pass through D.C. ammeter b. A.C. changes direction

c. average value of current for complete cycle is zero d. none of these

78.The total current supplied to the circuit by the battery isa. 1A b. 2A

c. 4A d. 6A

79.The resistance of the series combination of two resistance is S. when they are joined in parallelthe total resistance is P. If S = nP, then the minimum possible value of n is

a. 4 b. 3

c. 2 d. 1

80. In a meter bridge experiment, null point is obtained at 20 cm from one end of the wire whenresistance X is balanced against another resistance Y. If X< Y, then where will be the new

position of the null point from the same end, if one decides to balance a resistance of 4X against

Y?

a. 50 cm b. 80 cm

c. 40 cm d. 70 cm

81. In the circuit, the galvanometer G shows zero deflection. If the batteries A and B have negligibleinternal resistance, the value of the resistor R will be

a. 200 b. 100

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c. 500 d. 1000

82.Two sources of equal emf are connected to an external resistance R. Then internal resistances ofthe two sources are R1 and R2. If the potential difference across the source having internal

resistance R2 is zero, then

a. R= ()

()b. R= R2 R1

c. R =

d. NONE OF THESE

83.A heater coil is cut into equal parts and only one part is now used in the heater. The heatergenerated will now be

a. doubled b. four times

c. one- fourth d. halved

84.A uniform electric field and a uniform magnetic field are acting along the same direction in acertain region. If an electron is projected along the direction of the fields with a certain velocity,

then

a. its velocity will decrease b. its velocity will increase

c. it will turn towards right of direction of motion d. none of these

85. In a potentiometer experiment the balancing with a cell is at length 240 cm. on shunting the cellwith a resistance of 2 the balancing length becomes 120 cm.The internal resistance of the cell

is

a. 1 b. 0.5

c. 4 d. 2

86.The resistance of hot tungsten filament is about 10times the cold resistance. What will be theresistance of 100 and 200 V lamp, when not in use?

a. 40 b. 20

c. 400 d. 200

87.An electron dipole is placed at an angle of 30 to a nonuniform electric field. The dipole willexperience

a. a torque only b. a translational force only in the

direction on the field c. a torques well as a translational force

d. none of these

88.The current I drawn from the 5 volt source will be

a. 0.33A b. 0.5A

c. 0.67A d. 0.17A

89.The flux linked with a coil at any instant t is given by 10t2 50t + 250 the induced emf at t= 3s is

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a. -190 V b. -10 V

c. 10 V d. 190 V

90.The resistance of a bulb filament is 100 at a temperature of 100. If its temperaturecoefficient of resistances be 0.005 per its resistance will become 200 at a temperature ofa. 300 b. 400c. 500 d. 200

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12.4.2012