b.mat Fst IV Main Qns

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Brilliant Tutorials Pvt. Ltd. IIT/BMAT4/ PMC(MAIN) - 1

S E A L

S E A L

S E A L

S E A L

BRILLIANTSFULL SYLLABUS TEST 4

FOR OUR STUDENTSTOWARD SSSS

JOINT ENTRANCE EXAMINATION, 2013

Time: 3 hours Maximum marks: 360IMPORTANT INSTRUCTIONS

Name of the Candidate (in Capital letters) : _____________________________________________

Roll Number: in figures

: in words ___________________________________________________________

Examination Centre Number:

Name of Examination Centre (in Capital letters): ________________________________________

Candidates Signature: ____________________ Invigilators Signature: ___________________

1. The Test Booklet consists of 90 questions. The maximum marks are 360 .

2. There are three parts in the questions paper A, B, C consisting of Physics, Mathematics andChemistry having 30 questions in each part of equal weightage. Each question is allotted4(four) marks for each correct response.

3. Candidates will be awarded marks as stated above in instruction No. 2 for correct response ofeach question. (one fourth) marks will be deducted for indicating incorrect response of eachquestion. No deduction from the total score will be made if no response is indicated for an itemin the answer sheet.

4. There is only one correct response for each question. Filling up more than one response ineach question will be treated as wrong response and marks for wrong response will bededucted accordingly as per instruction 3 above.

5. Use Blue/Black Ball Point Pen only for writing particulars / marking response on side-1 andside-2 of the Answer Sheet. Use of pencil is strictly prohibited.

6. No candidate is allowed to carry any textual material printed or written, bits of papers, pager,mobile phone, any electronic device etc; except the Admit Card inside the examinationhall/room.

7. Rough work is to be done on the space provided for this purpose in the Test Booklet only. Thisspace is given at the bottom of each page and in 4 pages at the end of the booklet.

JEE 2013BMAT 4 (MAIN)

Jan 2013


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Brilliant Tutorials Pvt. Ltd. IIT/BMAT4/PMC(MAIN) - 2

SPACE FOR ROUGH WORK

1. A uniform rod of length L and mass M isfree to rotate on a frictionless pin Pthrough one end, as shown in figure . Therod is released from rest in the positionshown. If the linear velocity of the lowestpoint on the rod in the vertical position is

16 ms , then the length of the rod is

2given g 10 ms =

P

(1) 1.2 m (2) 1.8 m

(3) 2.4 m (4) 3.6 m

2. A uniform rod of mass m and length Lstands vertically on a rough horizontalfloor and is allowed to fall. Assuming thatslipping has not occurred, the angularvelocity of the rod when the rod makesan angle with the vertical is

2g 10 ms , L 5/ 3 m and 60 = = =

(1) 16rads (2) 13 rad s

(3)1

1.5rad s

(4)1

6 rad s 3. A body initially at rest is accelerated in a

circular path of radius 1.3 m accordingto the equation = +2120 t 48t 16 .Find the tangential acceleration at timet = 1 sec if the radius of the circular pathis 1 m.

(1) 2132m/s (2) 2142 m/s

(3) 288m/s (4) 2102 m/ s

4. A block is placed on an inclined planeas shown in figure . What must be the

coefficient of friction between blockand incline if the block is not to slidealong the incline when the incline isaccelerating to the right at 23 m/ s ?

PART A: PHYSICS


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2sin 37 3 /5 and g 10 ms = =

37

m

a = 3 ms 2

(1)1549

(2)1749

(3) 1449

(4) 1849

5. A force of = F V A is exerted on aparticle in addition to the force of

gravity where v is the velocity of the

particle and A is a constant vector inthe horizontal direction. With whatminimum speed a particle of mass m beprojected so that it continues to movewith constant velocity?

(1)mgA

(2)mg

A cos

(3)mg

tan2A

(4)2mg

cotA

6. Determine the work done in winding up

a homogeneous cable which hangsfrom a horizontal drum if its free length is20 m and weighs 1kN as shown in the

figure . Take g = 29.81m/s

(1) 981 kJ (2) 98.1 kJ

(3) 9.81 kJ (4) 10 kJ

7. A pipe which can be swiveled in avertical plane is mounted on a cart. Thecart moves uniformly along a horizontalpath, with a velocity =

1v 2 m/ s . The

pipe is so swiveled to make an angle to the horizontal so that rain fallingvertically with a velocity =2v 6 m/ smoves parallel to the walls of the pipewithout touching them. What is thevelocity of the rain parallel to the wallsof the pipe?

(1) 120 ms (2) 130 ms

(3) 140 ms (4) 150 ms


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8. Two seconds after projection, aprojectile is travelling in a directioninclined at 30 to the horizontal; afterone more second it is travellinghorizontally. Determine the angle ofprojection. Take 2g 10 ms = .

(1) 30 (2) 45 (3) 37 (4) 60

9. Find the centre of mass of the letter Fwhose dimensions are given in figure .Take the origin at bottom left corner.Take the width of the letter as 1 cmeverywhere. Then, coordinates of thecentre of mass in cm are approximately,

5 cm

2 cm

O 3 cm

1 cm

1cm

1 cm

(1) ( )1, 3 (2) 33,2

(3)1

, 32

(4)1

3,2

10. A thin uniform bar lies on a frictionless

horizontal surface and is free to moveon the surface. Its mass is 160 gm andlength is 150 cm. Two particles, each ofmass 80 gm are moving on the samesurface towards the bar in a direction

perpendicular to the bar, and strike atpoints A and B as shown in figure . Theparticles stick to the bar at the sameinstant of time. What is the angularvelocity of the bar after collision?

u1A80 g

B

m6 m/s

0.5 m

0

0.5 m

80 gm 10 m/s

u2

(1)1

6.1rad s

(2)1

9.1rad s

(3) 112.1rad s (4) 116.1rad s

11. A particle of mass m is placed at thecentre of curvature of a fixed uniformsemi-circular ring of radius R and mass Mas shown in figure below. The interactionforce between the ring and the particle

is given by in units of 2

GMm

R

(1) 1 (2) 2 (3) 3 (4) 4


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12. What is the percentage change in

volume of a glass ball if it is placed invacuum than in air? Bulk modulus ofglass 10 2B 4.0 10 Nm = .

5Atmosphere pressure is1 10 Pa

(1) 35.2 10 (2) 43.2 10

(3) 42.5 10 (4) 35.5 10

13. The rate of flow of a liquid of density3 31.25 10 kg/ m through a conical sec-

tion of a tube is 4 36.43 10 m / s . If theradii of its ends are 0.1 m and 0.4 m, what

is the work done per unit volume by thepressure as the liquid flows from P to Q?

(1) 37.81J/m (2) 312.6 J/m

(3) 35.21J/m (4) 310.0 J/m

14. A soap bubble of radius R has beenformed at normal temperature andpressure under isothermal conditions. Ifthe surface tension of soap solution is T,the work done during the formation ofthe bubble is proportional to

(1) 2R (2) 3R (3) 3 / 2R (4) 2 / 3R

15. A road runs midway between two

parallel rows of buildings. A motoristmoving with a velocity v m / s soundsthe horn. He hears the echo onesecond after he has sounded the horn.If velocity of sound in air is 330 m/s andthe road is 165 m, wide, what is v?

(1) 405 m/s (2) 286 m/s

(3) 115 m/s (4) 218 m/s

16. A particle revolves in clockwise direction(as seen from point A) in a circle c ofradius 1 cm and completes onerevolution in 2s. The axis of the circleand the principal axis of the mirror Mcoincide. The radius of curvature of the

mirror is 21 cm. Then the direction ofrevolution (as seen from A) of the imageof the particle and its speed is

(1) anticlockwise, 11.6 ms

(2) anticlockwise, 13.14 ms

(3) clockwise, 11.6 ms

(4) clockwise, 131.4 ms

17. Interference experiment using doubleslit is performed using bichromatic lightsof wavelengths 600 nm and 450 nm.What is the least order of the light of

longer wavelength such that nth orderfringe of longer wavelength coincideswith (n + 1) th order of the shorter wave-length?


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(1) 8 (2) 6 (3) 5 (4) 3

18. A particle is subjected to two simpleharmonic motions namely = 1x 4 sin t

( )= + 2and x 3 sin t . The maximumspeed and maximum acceleration ofthe particle are respectively 1910 cm/sand 2599736 cm/ s . What is the value of

? Given 37 6.08 =

(1)6 (2)

4

(3)3

(4)2

19. The pressure of one mole of an ideal gasvaries according to the law = 20P P V

where 0P and are positive constants.The highest temperature that the gasmay attain is

(1)

120 02P P

3R 3

(2)

120 03P P

2R 3

(3)

120 0P P

R 3

(4)

130 0P P

R

20. The work done when one mole of aperfect gas is compressed adiabaticallyis 957 J. The initial pressure of the gas is

5 210 N/m . The ratio of initial volume ofthe gas to the final volume is 3. What is

the final volume of the gas in litre if the

molar specific heat of the gas atconstant volume is 3R/2 ?

(1) 4 litres (2) 2 litres

(3) 0.2 litre (4) 0.4 litre

21. Two radioactive nuclei X and Y containan equal number of atoms. Their half lifeis 1hr and 2 hrs respectively. Calculatethe ratio of their rates of disintegrationafter 2 hrs.

(1)14

(2)13

(3)12

(4)16

22. In a vernier N divisions on the main scaleis divided into (N+1) divisions on thevernier. If the value of 1 MSD is a unit,what is the value of least count?

(1)aN

(2)a

N 1

(3)aN

N 1+ (4)

( )a

N 1+

23. A uniformly wound solenoid of self-inductance 41.8 10 H and resistance6 ohm is broken into n identical coils.The identical coils are then connectedin parallel across a 12 V battery ofnegligible resistance. If the steadycurrent through the battery is 8A, what isthe value of n?


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(1) 2 (2) 3 (3) 4 (4) 6

24. A simple pendulum consisting of a bobattached to a conducting wire of

length ' ' swings under gravity through

an angle 2 . The magnetic flux density

due to earths magnetism in a directionperpendicular to the plane of the swingis B. Then the maximum rate of changeof emf induced between the two ends

of the pendulum occurs when is

(1) 45 (2) 30

(3) 0 (4) 60

25. Find the average value for the saw-

tooth voltage of peak value 0V as

shown in figure below

3T

2T

2

(1) 0V6

(2) 0V4

(3) 0V

3 (4) 0

V

2

26. Two parallel capacitors each of

capacitance C are connected in

series to a battery of emf E. Then one of

the capacitors is filled with a dielectric

of relative permittivity . Then the

potential across the capacitor into

which the dielectric is inserted

(1) increases by( )

+4E 1

2

(2) increases by( )

+4E 1

1

(3) decreases by( )

( )

+E 1

1

(4) decreases by( )( ) +

E 12 1

27. A technician has only two resistance

coils. By using them singly or in series or

in parallel he is able to obtainresistances, 3, 4, 12 and 16. The

resistance of the two coils are


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(1) 6 and10 (2) 4 and12

(3) 7 and 9 (4) 4 and16

28. ABCD is a circular coil of non-insulatedthin uniform conductor. Conductors EAand FC are very long straight parallelconductors tangential to the coil at thepoints A and C. There is another circularcoil of radius 5 cm coaxial with ABCD,which is also a non-insulated thinuniform conductor. A current of 5Aenters at A and leaves at C. The radiusof the outer coil is 10 cm and that of theinner coil is 8 cm. The connecting leadsbetween the outer and inner coils areconducting. What is the magneticinduction at O?

(1) 310 T (2) 410 T

(3) 510 T (4) 610 T

29. If n nE and J denote the total energy

magnitude and angular momentum of

an electron in the nth allowed orbit of a

Bohr atom, then the plot of n 2n

1E vsJ

is a

(1) parabola

(2) circle

(3) rectangular hyperbola

(4) straight line

30. A small plate of metal (work function

= 1.17 eV) is placed at a distance of 2m

from a monochromatic light source of

wavelength 74.8 10 m and power 1.0

watt. The light falls at an angle 60 to the

plate. Find the number of photons

striking the metal plate per square metre

per second in multiple of 1610 .

34 8h 6.6 10 J.s; c 3 10 m/ s, 3.14 = = =

(1) 2.41 (2) 4.82

(3) 5.20 (4) 6.82


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31. If the sum of the squares of the roots ofthe equation ( ) 2x sin 2 x

( ) + =1 sin 0 is least, then =

(1) 4

(2) 3

(3) 2

(4) 6

32. The normals at three points P, Q, R of theparabola =2y 4 ax meet in (h, k). Thecentroid of triangle PQR lies on

(1) =x 0 (2) =y 0

(3) = x a (4) =y a

33. The curves satisfying the differential

equation ( ) + = 21 x y xy x are (1) ellipse and hyperbola

(2) ellipse and parabola

(3) ellipses and straight lines

(4) circles and ellipses

34. If ( )= + +2Z 1 2t i 4t 2t + 2 where t is areal parameter, the locus of Z in theArgand plane is

(1) a hyperbola (2) an ellipse

(3) a straight line (4) none of these

35. If , , are the cube roots of


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38. If a,b, c are distinct, and

( )( ) ( )( )= + +3 3 3

1 1 1a b c b c c a a b a b c

a b cthen

( ) ( ) ( )( )( ) ( )( ) ( )( )

=

2 2 2

1 1 1

x a x b x cx b x c x a x c x a x b

vanishes if =x

(1) + +a b c (2) ( )+ +1 a b c3

(3) ( )+ +2 a b c3

(4) ( )+ +1 a b c2

39. If A is a square matrix such that

( )

=

4 0 0A adj A 0 4 0

0 0 4 then det ( ) =adj A

(1) 4 (2) 16

(3) 64 (4) 256

40. ( )

= 4

0sin x. d x x

(1) 12

(2) 12

(3) 1

12

(4) 1

41. A three digit number n is such that thelast two digits of it are equal anddifferent from the first. The number ofsuch n s is

(1) 64 (2) 72 (3) 81 (4) 900

42. The number of ways of arrangements ofall the letters of the word SWORD, sothat no letter is in its original position is

(1) 44 (2) 32 (3) 28 (4) 20

43. If ka is the coefficient ofkx in the

expansion of ( )+ +n21 x x for =k 0 ,

1, 2 ,.. .2n , then

+ + + + =1 2 3 2na 2a 3a ... 2n a

(1) 0a (2)n

3

(3) nn . 3 (4) nn . 3


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44. Two systems of rectangular axes have

the same origin. If a plane cuts them atdistances a, b, c and p, q, r from theorigin, then

(1) + + =2 2 2 2 2 21 1 1 1 1 1

0a b c p q r

(2) + + + =2 2 2 2 2 21 1 1 1 1 1

0a b c p q r

(3) + + + + + =2 2 2 2 2 21 1 1 1 1 1

0a b c p q r

(4) + =2 2 2 2 2 2

1 1 1 1 1 10a b c p q r

45. If = +

c 3a 4b and =

2c a 3b , then

(1)

c , and

b have the same direction

and <

c 2 b .

(2)

c and

b have opposite direction

and >

c 2 b .

(3)

c and

b have the same direction

and >

c 2 b .

(4) none of these.

46. If a, b, c, 1 1 1a ,b c are non zero complex

numbers satisfying

+ + = + + + =1 1 11 1 1

,a b ca b c

1 i and 0a b c a b c

+ +2 2 2

2 2 21 1 1

thena b c

a b c is equal to

(1) 2i (2) 2 + 2i

(3) 2 (4) 2 2i

47. The digit at the unit place of + 183(183)! 3

is

(1) 3 (2) 9

(3) 7 (4) 0

48. = 22f(x) x x is discontinuous on

(1) Z (2) Z {0}

(3) Z {0,1} (4) Z {1}

49. +

=+

/ 2

0

3 sec x 5cosec xdx

sec x cosec x

(1) (2) 2

(3) 3 (4)2


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50. If {x} denotes the fractional part of x,

then

2003217

is

(1) 217

(2) 417

(3) 817

(4) 1617

51. The real number x when added to itsinverse gives the minimum value of thesame at x =

(1) 2 (2) 1

(3) 1 (4) 2

52. If 1 2 3Z , Z , Z are the vertices of anisosceles triangle, right angled at thevertex 2Z , then the value of

( ) ( ) + 2 21 2 2 3Z Z Z Z is

(1) 1 (2) 0

(3) ( ) 21 3Z Z (4) none of these

53. The locus of a point ( ) p , movingunder the condition that the line

= + y x is a tangent to the hyperbola

=2 2

2 2

x y1

a b is

(1) an ellipse (2) a circle

(3) a parabola (4) a hyperbola

54. The constant of Lagranges Mean

Value Theorem for= +2f(x) lx mx + n (l 0) in a,b is

(1) 12

(2) 13

(3)14

(4)16

55. The solution of 2 2 2 2x dy y 1 dx

x y x y

= + +

is

(1) ( )= y x cot c x

(2) = +1 ycos x cx

(3) ( )= 2

2y

x tan c xx

(4) ( )= y x tan c x

56. If A,B,C are the angles of a triangle suchthat + + = =cos A cosB cosC 0 sinA + +sinB sin C, then

+ + =cos 3A cos 3B cos 3C

(1) + +cos (A B C)

(2) + +sin (A B C)

(3) + +3sin (A B C)

(4) + +3cos (A B C)


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57. If

=

1 1 3

A 5 2 6 ,2 1 3

then A is

(1) idempotent matrix

(2) involutory matrix

(3) nilpotent matrix

(4) scalar matrix

58. Two points P and Q are taken on the line joining the points A(0,0) and B(3a,0) suchthat AP = PQ = QB. Circles are drawn onAP, PQ and QB as diameters. The locusof the point S, the sum of the squares ofthe length of the tangents from which to

the three circles is equal to 2b is

(1) + + =2 2 2 2x y 3 ax 2a b 0

(2) ( )+ + =2 2 2 23 x y 9 ax 8a b 0

(3) + + =2 2 2 2x y 5 ax 6a b 0

(4) + =2 2 2x y ax b 0

59. One ticket is selected at random from

100 tickets numbered 00, 01, 02, . , 99.Suppose A and B are the sum andproduct of the digits found on the ticket.

Then ( )= =P A 7 B 0 is given by

(1) 213

(2) 219

(3) 150

(4) none of these

60. If ( ) 22 2 2log sin x log cos x log 1 tan x= 1, then

(1)

= +n

x2 8

(2)

= x n8

(3) =tan2x 1 (4) none of these


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61. Which one among the following has thehighest mass?

(1) 1 gram atom of sodium

(2) 1 mole of sulphur

(3) 22.4 L of 2N at STP

(4) 1 Avogadro number of 2CO mole-

cules

62. The value of coefficients (x, y and z) inredox reaction

+ + 2 2 7 2 4 2K Cr O x H SO y SO

( )+ +2 4 2 4 23K SO Cr SO zH O

(1) 1, 3, 1 (2) 4, 1, 4

(3) 3, 2, 3 (4) 2, 1, 2

63. The uncertainty in the momentum of an

electron is 5 11.0 10 kgm sec . Theuncertainty in its position will be

( ) = 34 2 1h 6.62 x 10 kgm sec (1) 281.05 10 m

(2) 261.05 10 m

(3) 305.27 10 m

(4) 285.25 10 m

64. In the esterification of the following

carboxylic acid containing 18O in the

OH of the carboxylic acid with an

alcohol, which of the following

statement is correct?

181 2 2R C O R + H O

OO

(1) 18O in water

(2) 18O in ester

(3) 18O in both

(4) 18O is not in any one

65. In 2 2 2 3O , H O and O , the correct order

of O O bond length will be

(1) > >2 3 2 2O O H O

(2) > >3 2 2 2O H O O

(3) > >2 2 3 2H O O O

(4) > >2 2 2 3O H O O

PART C: CHEMISTRY


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66. The nodal plane in the bond of

ethene is located in(1) the molecular plane

(2) a plane perpendicular to themolecular plane

(3) a plane perpendicular to the mole-cular plane which bisect the C C sigma bond at right angle

(4) a plane perpendicular to the mole-cular plane which contains the

C C sigma bond

67. The primary cells among the followingare

(A) lead-acid storage cell(B) pen light torch cell

(C) cadmium-nickel cell

(D) fuel cell

(1) A, B, C and D

(2) B and D

(3) B, C and D

(4) A and B

68. The following equilibria are given

+ 2 2 3 1N 3H 2NH ; K

+ 2 2 2N O 2NO ; K

+ 2 2 2 31

H O H O ; K2

The equilibrium constant of the reaction

+ +3 2 25

2NH O 2NO 3H O2

in terms of

1 2 3K , K and K is

(1) 1 2 3K K K (2) 1 2 3K K /K

(3) 21 3 2K K /K (4)3

2 3 1K K /K

69. The density of 2H in a cylinder of 1L

capacity is filled with 2H at 82

atmosphere pressure at 27C is

(1) 1.008 g/L (2) 5.040 g/L

(3) 6.00 g/L (4) 6.667 g/L

70. Which of the following statements is

wrong?

(1) The coordination number of each

type ion in CsCl crystal is 8

(2) Hexagonal close packed arrange-

ment of species is described as

ABABAB

(3) The density of a crystal with Schottkydefect is not actual

(4) 2 2R SiC gives silicone on hydrolysis


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71. The false statement about zero order

reaction is(1) The concentration of reactant and

rate of reaction does not changewith time.

(2) The graph plotted between 12

t and

initial concentration of reactant is a

straight line.

(3) 12

t is directly proportional to initial

concentration of reactant.

(4) Unit of rate constant and rate ofreaction are different.

72. The freezing point of 0.2 m aqueous

2 4K SO is 1.1C. The degree of

dissociation of 2 4K SO in the above

solution is ( fK of water is 1.86 K kg

1mol )

(1) 0.6 (2) 0.975 (3) 0.8 (4) 0.5

73. The aqueous which will be acidic is

(1) 4NH C (2) ( )4 2 42NH C O

(3) 3 4CH COONH (4) KCl

74. The pH of an aqueous solution

containing 0.4 g of caustic soda in oneliter is

(1) 14 (2) 1 (3) 12 (4) 13

75. If f of ( ) ( ) ( )g g gIC , C and I is 18.00,

121.00 and 107.0 J 1mol respectively,

the bond dissociation energy of I C

bond is

(1) 1110 J mol (2) 1100 J mol

(3) 1210 J mol (4) 1420 J mol


correct about colloidal system?

(1) Phase particles have random,

continuous motion called Tyndalleffect.

(2) Colloidal particles which scatter thelight is called Brownian movement

(3) Phase particles move towards

oppositely charged electrodes underthe influence of electric field and it isknown as electrophoresis.

(4) Negatively charged colloidal parti-cles are precipitated efficiently by

aluminium ion.


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correct?(1) The properties of OH group of

alcohol and phenol are different

(2) 4LiA H reduces carboxylic acid to

alcohol

(3) Phenol can be reduced to asecondary alcohol

(4) All of the above

78. In the reaction

2 44

||(i)HCN/H SO3 2 (i i)LiA H

O

CH CH C H A.

The product A is

(1) 3 2 2 2CH CH CHOH CH NH

(2) 3 2 2 2CH CH CH CHOH NH

(3) 3 2 2 2CH CHOH CH CH NH

(4) |

3 2 2|

3

OH

CH CH C NH

CH

79. Among the following, the Newmannprojections of meso 2, 3 butanediolare

(1) A, B (2) A, C (3) C, D (4) B, D

80. In which of the following groups each

member answers positive iodoform test?

(1) methanol, ethanol, propanone

(2) ethanal, isopropanal, methanal

(3) propan-2-ol, propanal, propanone

(4) ethanol, acetophenone, methylethylketone

81. Which set of functional groups can be

acetylated?

(1) all types of alcohols, 1, 2 amines, all

phenols and all carbohydrates.

(2) all types of alcohols, all types of

amines, phenols and carbohydrates

(3) all types of alcohols, all acids and all

types of amines

(4) 3 amines, alkyl halides and

aldehydes


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82. The decreasing order of reactivity of

given compounds towards nucleophilicsubstitution with aqueous NaOH is

(1) A > B > C > D

(2) B > D > C > A

(3) D > B > C > A

(4) B > D > A > C

83. Which of the following compounds will

react with 5PCl ?

(A) Alcohols

(B) Carboxylic acids

(C) Phenols

(D) 3R COCH

(E) ethers

(1) A, B, C and D

(2) B, C, D and E

(3) A, C and D

(4) A, B, C, D and E

84. What is false about ( ) 3 2Ag NH OH ?

(1) It is a cationic complex

(2) Hybrid state of silver is 2sp

(3) It is diamagnetic in nature

(4) It can be used to detect reducible

groups like aldehyde, sugar etc

85. The main reason for large number of

oxidation states actinoids than the

corresponding lanthanoids is

(1) more energy difference between 5f

and 6d orbitals than between 4f

and 5d orbitals

(2) lesser energy difference between 5f

and 6d orbitals than between 4f

and 5d orbitals

(3) large atomic size of actinoids than

the lanthanoids(4) greater reactive nature of the

actinoids than the lanthanoids


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86. The correct increasing order of bond

dissociation energy for 2 2 2 2N ,O ,F andCl is

(1) < <


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b.mat Fst IV Main Qns

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