Chemistry 2014 csir net question paper

8/11/2019 Chemistry 2014 csir net question paper

1/42

i?h n:..1..?;-.1.?;.:

..............

77

y ..........................

O R 5?%T:. .A.m.O

.....


2/42


3/42

9.11 x 10-~11cg

6.63 x I@ J sec

1.6

x

10-'9c

1.38 x 10-= J/K

3.0

x

lVm/Sec

'eV

amu

G

Y

N

A

E O

o

6.023

x

l

O

mole-'

USEFUL

FUND MENT L

CONSTANTS

Mass of electron

9.1 1

x

10-J'Kg

~ l a n c k ' s onstant 6 . 6 3 ~ 1 0 - ~ J s e c

Charge of electron

1.6

x

10-l9C

Boltzmann constant

Velocity of Light

1.6 x 1 0 - 9 ~

I,v

mu

ydberg constant

1 . 0 9 7 ~07m-I

6.023 x 100

mole-'

vogadro number

8 854 x 10-'2Fm4

7t x 1 0 - 7 ~ '

Molar

as

const nts


4/42

LIST

O

THE TOMIC WEIGHTS

O

THE ELEMENTS

Element Symbol Atomic Atomic Element

Svmbol Atomic Atomic

Number Weight Number Weight

Actinium Ac -

89 (227)

Mercury Hg

80 200.59

Alum~nium A l

13 26.98

Molybdenum Mo

42 95.94

Americium A m

95 (243)

Neodymium Nd

60 144.24

Antimony Sb

51 121.75

Neon Ne

10 20.183

Argon A r

18 39.948

Neptunium

NP

93

Arsenic

(237)

A s

33 74.92

Nickel Ni

28 58.71

Astatine At

85 (210)

Niobium Nb

41 92.91

Barium Ba

56 137.34

Nitrogen N

7 14.007

Berkelium Bk 97 (249) Nobelium

No

102 (253)

Beryllium Be 4 9.012 O smi u m 0 s 76 190.2

Bismuth Bi 83 208.98 Oxygen 0 8 15.9994

Boron

5 10.81

Palladium Pd

46 106.4

Bromine Br 35 79.909 Phosphorus P 15 30.974

Cadmium Cd

48 112.40 ,

Platinum Pt

78 195.09

Calcium C a

20

40.08

Plutonium PU

94

Californium C 98 (251) ~ o l o n i u m

(242)

Po

84

Carbon C 6 12e011 potassium

(210)

K 19 39.102

Cerium C e

58 140.12

Praseodymium pr

59 140.91

Cesium C s 55 132.91 Prometh ium

Pm 61

Chlorine CI

17 35.453

protactinium

(147)

Pa

91

Chromium C r

24 (231)

52 00

Radium

Cobalt

a

88

Co 27

(226)

58.93 Radon Rn

86

Copper Cu 29

(222)

Curium

63 54

Rhenium Re

75 186.23

C m

96

(247)

Rhodium Rh

45 102.91

Dysprosium DY 66

162 50

Rubidium Rb

37 85.47

Einstein~um Es 99

Erbium

(254)

Ruthenium

68

Ru

- 4 4 101.1

Er

167.26

Samarium-

63

Sm

Europium

62 150.35

Eu

Fermium F m

100

151.96 Scandium Sc 21 44.96

Fluorine

F 9

(253)

selenium Se

34 78.96

Fra-ncium Fr 87

19 00

silicon Si 14 28.09

Gadolinium Gd

64

(223)

silver Ag

47 107.870

Gall~um Ga 31 69.72 Na .-

57.25 Sodium

11 22.9898

Germanium

G

e

32 72.59

Stront ium

S

38 87.62

Gold A u

79 196.97

Sulfur S

7

6 32.064

Hafnium H

72

178.49

Tantalum Ta

73 180.95

Helium

He

2 4.003

Technetium

Tc 43 (99)

t jolmium Ho 67

164.93

Tellurium Te

52 127.60

Hydrogen H 1

1,0080

Terbium Tb

65 158.92

Ind ium In 49

114.82

Thallium TI 81 204.37

Iodine I .

53 126.90

Thorium Th

90 232.04

Ir idium

Ir 77 192.2

Thul ium Tm

69 168.93

I ron Fa

26 55.85 Tin

Sn

50 118.69

Krypton Kr 36 83.80 Titanium Ti 22 47.90

Lanthanum La

57 138.91

Tungsten W

74 183.85

Lawrencium Lr 103 (257) Uranium U 92 238.03

Lead Pb

82 207.19

Vanadium V

23 9 , 9 4

Lithium L i

3 6.939

Xe

54 131.30

Lutet ium L u 71 174.97 Ytterbium Yb 70 173.04

Magnesium M 9

12 24.312

Yttrium Y

39 88.91

Manganese M n 25 54.94 Zinc

Z

n 30 65.37

Mendelev~um Md

101 (256)

Zirconium Zr

40 91.22

Based on mass of Cqz at

12.000

... The ratio of these weights of those on the order chemicalqcale (in which Oxygen of

natural isotopic composition was assigned a mass of

16.0000...

is

1.000050.

(Values in parentheses represent the most

stable known isotopes.)


5/42

f f

2.

4; /

PART

A

1

The following diagram shows

2

perpendiculply inter-grown prismatic crystals

twins) of identical shape

and

size. What is the

3

volume of the object shown units are

arbitrary)?

Suppose in a

box

there are

2

red, 30 black, 40

blue and 50 white balk What is the minimum

number of balls to

be

dr~wn, witl~out

replacement, so that you

are

certain about

getting

4

red,

5

black,.

5

blus

and , 7

white

balls?

In the growing years of a child, the height

increases as the square root of the age while

the weight increases in direct proportion to tlze

age. The ratio of the weight to

the

square of

the height in this phase of growth

1 is constant.

2

reduces with age.

3 increases with age.

4

is constant only if the weight and height at

birth are both zero.

~ A ~ ~ ~ 3 k W

80,70,50,60,90,301

B

a

40, 80, 35, 70, 85, 45, 50, 75, 60

hi d l

m*f

-

0 )= 3mm 3iF

-

3 k

W k RD) =-

*

31

1 w

Am

R D = T

Bm RD

2 . w Am RD> w Bm RD

3 Am RD w Bm RD

4 . w q r A m D c w BmD


6/42

4 Students

in

group A obtained the following

marks: 40 80 70 50 60 90 30. Students in

group B obtained 40 80 35 70 85 45 50

75 60 marks.

Defme

dispersion @ =

maximum

marks

minimum

marks , and

tspenton

relative dispersion

RD)

= .

Then,

1. RDofgroupA=RDofgroupB.

2.

RD

of group

A >

RD of group B.

3. RD of group

A


7/42

9

If all horses are donkeys, some donkeys are

monkeys, and some monkeys are men, then

which statement mGst be true?

1. All donkeys are men.

2.

Some donkeys may be men.

3. Some horses are m en.

4. All horses are also monkeys.

i

10.

A rectangular area of sides 9 and

6

units is to

be covered by square tiles of sides

1, 2, and 5

units. The minimum number of tiles needed

for th is is

1. 3 2. 11

3. 12 4. 15

ll

Suppose n is a positive integer. Then

n2

n) 2n 1)

1.

may not be divisible by

2.

2.

is always divisible by 2 but may not be

divisible by 3.

3

is always divisible by

3

but may not be

divisib le by 6

4. is always divisible by

6

12. There is a train of Length 500 m, in which a

man is standing at the rear end. At the instant

the rear end crosses a stationary observer on a

platform, the man starts walking from the rear

to the front and the front to the rear of the train

at a constant speed of

3

kmhr. The speed of

the train is 80 km/hr. Th e distance of the man

from the observer at the e nd of 3 0 minutes is

1

41.5

km 2

40.5

krn

3

40.0

km

4. 41.Okm.

Three identical flat equilateral-triangular

plates of side cm each ar e placed together

such that they form a trap ezium . The length of

the longer of the two parallel sides of this

trapezium s


8/42

14. An rcher climbs to the top of a 10 m high

building and aims at a bird atop a

tree

17 m

away. The line of sight from the archer to the

bird makes an angle of 45 to the horizon tal.

What is the height of the

tree?

1. 17m 2. 2 7 m

3. 37m 4. 4 7 m

J'i

A B = A C = ~ . hT

m

i

T iW

APOQ kT

d h iX

8,

r n r n p . o r 8 1 r n

r r m a ; r r * q m ~ * m ~ m

~ ~ r r A ~ o . 2 i ~ ~ ~ m 8 1

15 Consider ;right-angled triangle

ABC

where

AB

=

AC

=

3. A

rectangle APOQ is drawn

inside it as shown, such that the height of the

rectangle is twice its width. The rectangle is

moved horizontally by a distance 0.2 as shown

schematically in the diagram (not to scale).

C

Area o AABC

What is the value of the ratio

Area

o AOST

1 625 2 400

3 225

4.

125

16 80 srn paper is cut into sheets of 200 mm

x

300 mm size and assembled in packets of 500

sheets. What will be the weight of a packet?

(gsm = dm2)

1. 1.2k g 2. 2.4 kg

3. 3.6 kg 4. 4.8 kg

17

Find the missing letter

A

B

C

F

I

L

K

P U Z

P

W

18.

A

merchant buys equal numbers of shirts and

trousers and pays

Rs.

38000. If the cost of

3

shirts is Rs 800 and that of a trouser is Rs

1000, then how many shirts were bought?


9/42

19 3M {1711 7 ~ ~, 1 7 ~ ~ .

1

The correct order of basicity for the following

f h l ? l ~ ~ T b ~ ~ 3 k 3

nions is

1. 60

2.

75

3. 100

4. 150

19 Consider the set of numbers

{1711 72,.- 7 ~ ~ ~ .

OW many of these

numbers. 60 end with the digit

3?.

75

N02

O2 O2

3. 100 4 150

1. 16 2. 96

3. 50 4 80

-

20 Find the missing number in the triangle

PART 'B'


10/42

22 The major product formed in the reaction of

2,s-hexanedione with

P p 5

s

23. The absolute configuration of the two

stereogenk (chiral) centres in the following

malcc- le-i-s - -

---

I

24

The correct statement about the following

molecule is

A e c u l e s chiral and possesses a chiral

plane

2 Molecule is chimi and possesses a chjral

/

axis-.

3.

Molecule is achiral as it possesses a plane

of symmetry

4

Moiecule is achiral as it possesses a centre

of symmetry

-

A.

cis- KT

fW trans

I

B

tram

t l ~ ~ fEW f? T

cis

I

c . t r a m m

7 r m I

D cs ZW srPdaiS r

m

I


11/42

25 Consider the follow ing statementsabout

-

is-

and tr&dccalins-

A. c5-isomer is mo re stable

than

trdns-isomer

B: tr--isomer is m ir e stable than ck iso m gr

C. trans-isom erund ergoes ring-flip -

D. cis-isomer undergoes ring-flip

The orrect statem ents among theabove are

d a n d 2 A a n d C

3.

A a n d D

4.

. B a n d C

26 I3is@I $%X ~ M I ~ ~ T T J ~ )

~ ( I I )

m

In bis dimethylglyoximato)nickel IQ, the

number of Ni-N

,

N& and i nt ra m ol ec ul ~

respectively, are

2. 2 ,2 and 2

3. 2 ,2 a n d 0 4. 4,O and 1

27 f 7

FhPh,

(A) Ni(I1);

+T$m-

GRx (B) AI(II1);

If

an enzyme @s

N2

n plants

by

evolving

H2 he ? u ~ b e r f electrons and protons

i ed S it h that, respectively,

? ? f a n d

6

3.

6

and 8

2 . 3 d

4. 8and6

29 Th e particles postulated to always accompany

the positron emission among

(A) neutrina,-'(B) anti-neutrino, (C) electron,

8 z r P P , % 8

30.

1. A,B?lW C

2.

A?TUTB

3

A?iW C 47 B?TUT C

27

hLong the following species,

(A)

NKII)

s

dihe@lglyo@nate, (8)

Al(IIQ.

ox';iate, (C) Ag(1)

s

chloride, those

th j

31.

precipita'te with the urea hydrolysis .

method are

1. A , B a n d C 2. A a n d B

3. A a n d C

4.

B a n d C

are

1.

A , B a n d C 2. A a n d B

3. A and C 4. Ba nd C

Toxicity o f cadmium and mercury in the body

is being re?&i'Sed% proteins, mainly using

the am ino acid residue,

1.

Gly cine 2. Leucine

3. Lysine 4 Cysteine


12/42

31.

NiBr2 reacts

with

(EtXphhP

at,

78

OC in CS2

tii--@ie

ki

compound;

A ,

which upon

standing at room temperature turn green to

give compound, 'B', of the

same

formula.

Th e meam red magnetic moments of

' A ' '

5re 0.0 and 3.2 BM, re~~ect ive ly .~The-

g e o m et r i i of ' ~ ' z de ~

1. -Square

war

and Tetrahedral

-

2. ~ d e d r a lnd Square planar

3. Square planar and Octahedral

4.

Tetrahedral and Octahedral

U.+&&netic, paramagnet ic and d ia m a p ti c

2 paramagnetic,diamagnetic

m

~arml agne t i c

3. diank-gnetic, paramagnetic and diamagnetic

4.

p&magnetic, diamagnetic and diamagnetic

-

- -

35. - m f i - e

vmrnif

1.

Na2Cr04?iWF%03

2.

Na2Cr207

iW

03

3. Crz(C03), IT Fe(OH)3

I .SC12 1,- .2. SClz

am

I

35.

Chromite

ore

on h i o n with sodium

3.SC12 V4T ClF;

4.

1,'SX ClF; carbonate gives

1. Na2CrC?4 ~ i i d e203

32. The correct non-cinear and iso-structural pair is

2. Na2Cr207and Fez03

,;/ I2 and

b

.

SClz and'I3-

4 -

3. Cr2(C03)3 nd Fe(OH)3

-\ 3.

.?(&and

CjFf : 4.

J; and . IF;

4.

Na2C r04 nd Fe~(C03)3

t3 5 . I . A f s 7 y .,

i .

33.

mpFT

36.

221

-

298

K

WT

?7

[(r15-c5H5)

33.

Ozone present in upper atmosphere protects

a --__----

people on the earth

1. due to its diam agnetic nature,

2. due to its blue colour

3. due to abso rption of radiation of

wavelength at 255 nm

' 4. by destroying chlorofluoro carbons

36. Th e ligand(s) that is (are) fluxional in [(l15-c5H5)

-

( q 1 , ; ~ s ~ 5 ) ~ e ( ~ ~ ) 2 ]n the temperature range

I 221

-

298

K,

is'iare)

1. q 5 - ~ 5 ~ 3

G4 Trc5~5

3. q 5 - ~ 5 ~ 5nd CO

4. ' q ' - ~ 5 ~ 5nd CO .

/-\-.

2. NH 33W 1,10--

34.

9R L

Vii

?zmf w*

mz if

m

3 H20

m

,lO- lwiah a,

mfbfAgL412', [AgLa]" ?iW [ A ~ L ~ I ~ '

T?J:

?

--

4. HzO P I T NH3

-

J k FG l Q

2. qy- ~,

m

qg6al6cl

37. [ C O L ~ ] ~ 's red in colour whereas [co L '~ ]' ~s

3.

-

32YcslCh?~

T

green . L and L' respectively corresponds to,

1. NH3 and H 20

4 . ~ , m y a 7 4 h 3 W - 2. NH3 and 1,lO-phenanthroline

3 . H 20and 1,lO-phenanthroline

34.

If L is a n eugal monodentate ligand, the species,

f4ii

4. H 2 0and NH3

[ A ~ L ~ ] ~ ' ,A ~ L ~ ] ~ 'nd [ A ~ L ~ ] ~ 'respectively, are

,

4 ;

V

: --b

H

\

1 p -.

,

4

< \

cd

1

' 4 4 ,./

n

, Y

Ca

..,

f -

--

--

1 .r


13/42

'r

38 [N~~(co)~]'-*

18

$ f h Ni*

ic

3 m m f V J T ~ ~ ~ - ~ ~ *

*i

1.

Ni(-II), 1 2 N i 2 =

3

Ni(-I), 3 ll3XT 4

N i i 3TiTZT

L

li

38 The oxidation state af-Ni nd the number of

r

metal - metal bonds in ~ i ~ ~ 1 2 -hat are

f

consistent w ith the

18

electron

rule are

J

2 Ni(lV), 2 bonds

-I), 1 bond 4. N i o , 3 bonds

I

1

t

...

39 Structures pf SbPh5and P P ~ ~espectively are

1. trigonal bipyramidal, squarqpyramidal

. 3

2 squa re pyramidal, trigona l gipyramidal

3 trigo nal bipyramidal, trigonal bipyrarnidal

l

4.

squa re pyramidal, square pyramidal

The typical electronic configurations of the

transition metal centrid , .ar oxidy&vzaddit,ion

ar A l > C a > S

2

S > A s > A I > C a

3.

A l > C a > S > A s

4.

S > C a > A s > A I

88.

M ~ ~ N ~ H ~ C H ~ C H ~ P P ~ ~

TW KSCN

1:2

m91n~

K2[PdC14] Wi

d i IT

F @ i T A f l i f ; I ~ A ~ ~ G l ? l l

~ 8 ~ ~ ~ ~ @ ~ t r a n s ~ , ~

famfaZmm -

(A) P, N (B) N, S (C) P, S (D) N, N

1.

A m

B

2 A m

D

3 BPTT

C

4.

CPJT D

-

88.

A

:2

mixture of Me2NCH2CH2CH2PPh2nd

KSCN with K2[Pd CI4] gives a square planar

complex

A.

ldentify the correct pairs of

donor atoms trans to each other in complex A

from the follow ing combinations.

P, N

B)

N,

S

(C) P, S

Dl

N,

N

(B)

m m - ~

mt

(C) af3Vm f

Q r n s f ; l r l f t r l l o r

89.

For a low energy nuclear reaction,

24

Mg(d, a) ~a, the correct statements from

the follow ing are

(A ) kineti c energy of d particle is not hl ly

available for exciting M ~

(B ) total nu mber of protons and neutrons is

conseried

(C)

Q

value of nuclear reaction is much

higher in magnitude relative to heat of

chem ical reaction

(D ) th resho ld energy is value

1.

A , B a n d C 2. A , B a nd D

3.

B , C a n d D

4.

A , C a n d D


26/42

99 At

p 7 the

zindIl

ion in

c rbonic

anhydmw

reacts with

C 2

give

91

Molybdoenzymes can both oxidize

as

well

as

reduce the substrates, because

I

Mow0 is more stable than M o w )

2

Mo(lV)can transfer oxygen atom to the

substrate and Mo(VJ.) can abstract oxygen

atom from the substrate

3. conversion of M q I ) o Mo(IV) is not

favoured

4

M o o an transfer oxygen atom to the

substrate and Mo(1V) can abstract oxygen

atom from the substrate

a comparison of the valence electron

'configuration of the elements, Sm and Eu

suggests that

1 Sm is a better one electron reductant than

Eu

2 Sm is a better one electron oxidant than Eu

3. facile oxidation state is 2 for both the

elements

4 both of these display similar redox

behaviour

93 The cooperative binding of Oz in hemoglobin

is due to

1 a decrease in size of iron followed by

changes

iq

the protein conformation

2 an increase in

size

of iron f~llowedy

chimges in the protein confoxmatior

3 a decrease in s@ of iron that is NOT

accompanied by the protein conformational

changes

4

an increase in size of iron that is NOT

accompanied'6y the protein conformational

changes


27/42

94. Amongst the following which is not isolobal

pairs

1 M ~( CO )S , H3 2. Fe(C0)4,

3

Co(CO),, R2Si 4. Mn(C0)5,

S

q

2 gp

ti ti H

95.

Th e correct order of the size of

S, s2-,2+

and s4+pecies is,

1.

s>s2+>s4+>s2-

2 s2+ s4+ s2-

S

3.

sZ- s

>

s z + >

s4+

4. s4+ sZ- s>

s2+

dm J p

KB~I H

l N

benzene

reflux

1. i. Ph3P+CH20MeCI-, uLi; ii. ~ ~ 0 ;ii.

Jones

36 d

2. i. H2N-NHTs; ii. BuL i 2 equiv.); iii. DM F

3.

i. H2N-NHTs; ii. BuLi (2 equiv.); iii. C 0 2

4. i. CICHZCO2Et,LDA; ii. B F3-OEtz; ii.

DMSO, (COC1)2, Et3N,-78 OC to rt

97.

The correct combination of reagents to effe ct

the following conversion is

\-

t

1 i. P ~ ~P cH ~ oM ~ c I- , uLi; ii. ~ ~ 0 ;ii. Jones

.

...

reagent

2. i. H2N-NHTs; ii. BuL i (2 equiv.); iii. DMF

m z N - N H T s ; i. B uLi (2 equiv.); iii. C 0 2

----

96.

Th e major product formed in the following

4.

i

ClCH2C02Et,LDA; ii. BF3.0E t2; iii.

reaction is

DMSO, (COC1)2, Et3N,

-78

OC to rt


28/42

E3u4N r'

anhyd. CF3COOH

CH CI

2

Br

F 8 7 ~ h e ajor product formed in the following

eaction is

99 Consider the fol lowing reaction.

The appropriate intermediate involved in this

reaction is

100. ~t a e t IW T

l R

c~hp t t 6)

f mZt:

,

100

The correct

13cN R

chemical 6) shifi

values of carbons labeled a e in the following

ester are


29/42

B.

ATP 43

C NADPH*

a

iq

~ . m m a q

m -iF

1

1. A , B a S r

D 2.

A m

A : dO Bie:dN

3.

B r n

C

4.

A C?Rll

D

2. 102

The biosynthesis of isopentenyl

A :

s% .

B:

pyrophosphate fiom ace tyl Co A involves:

H

A. Four molecules of acetyl CoA

B. Three molecules o f AT P

3.

C. Two molecules ofNADPH

A : 6 a,n D. Two molecules of lipoic acid

Me

H

The c o m t options among these are:

A 1. A , B a n d D 2. A a n d B

.

3. B a n d C

4

A, C and D

103

- R M d 5

- .e

m ~ ~ , * w A * g

'

?

.

The-prod.u.ctsA md .B.~ n..th e~f ollo win g

-

reaction sequence are

hv

A

-

B

.

1

A

t .---* C D

1 A?fW C

H

Y ~

2.

3.

A m

. =

103 Amongst the following, the major products

formed in the following photochemical

3.

reaction are

d n i m u r ~ ~ - ~ : 1 A a n d C

2. B and C .

4. A a n d B


30/42

A : A

B

105. Anthranilic acid, on treatment with i so - a m a tr if e

H N

MeO

furnishes a produet which displays a strong peak at

76

d e )

in its

mass spectrum. The structure of the

product is

The products and B in the following

sequenc e are


31/42

1 0 7 . - f f T J r ~ * - = ~ *

rn c9h?dl

n=0, t?rrrr2)*

1. ~ ; R * i f f 5 t l f m m d h m f T ~ p , , =

0.633, pi = 0.233

?lW ~

.086 8 h

Shw

n 2 3

A @ ~ ~ F w * * . .

mBm8 I

2. 1. 0.032

2. 0.048

3. 0.952 4. 1.000

107;

Usmg Boltimarirl d ib u t io n , the probability of

3.

~

o ill or

g the irst

thr evels

n =

0, 1 ti 2)b

f a d o be

po=

0.633,

p, =

0.233

and

p2= 0.0 6.

The

probability

of

findiig

aii

oscillator

in n gy

levelsn-23 is

H Zn

;

0,032

2.

0.048

4.

3. 0.952

4. 1.000

..

106. The, organoborane. X, when reacted with

108. f b d & i 3 ~ f W m r s m r A ~ - m 1 q

Et2Zn falowed bE-iodotoluene

in

the

.

atrr ~g

pyi - J ~

pr i5ni-of catalyti a m o x of pd(P~h,),

i.

P ~ N C O

fumikhes a tris;b&tuted

a

The

Et3N

Hz

RaneyNi

intermediate and .&S iZGUC


32/42

-

-

:.-.> .

.

.-


33/42

1

A

odo2;

B K 00~-N=N-COOX+,

AcOH

2. A 02,m M, h ~ K+-OOC-N=N-

COOX+,ACOH

3.

A= 02,

mm v; B

=Hz,Pd/C

4.

A = O ~ , ~, B=H2,Pd/C

112.The correct combination of reagents for

effecting the foflowing-sequence of reactions

is

1

A 03/02;B

K+

00~-N=N -COO X ,

AcOH

2.

A 02,Rose Bengal, hv; B K+-OOC-

N=N-cOOX', AcOH

3.

A

0 2

Rose Bengal, v; B

Hz, PdC

U1 Rose Bengal, A; B H2, PdC

113.The correct combination of reagentsrequired

to

df the

following conversion

is

4.

s BuLi

78 'C followe by ICH2C I

r

114 Consider a particle confined in a cubic

box

The degeneracy of the level, that has

an

energytwice.that of the lowest level, is

1. 3

2.

1

I

ii

BrCH2CH2Br

115. Only two products are obtained in the

following reaction sequence. The structures

of the products from the list

I-IV

are


34/42

NaNHp

ii

BrC&CH r

Mac '-: QCDP*

o

\ / ~ o o ~ e

3

H 4 OH

( -p

117.

~ ~ I @ Z ~ T ~ ~ ~

I u a

rt

,L,J.---A

oq NaCN

Mn4

dbxme

6

i . andII

2.

a n d N

refha

Wr0 1.

Mef i

3. I and

4.

n1 and IV

1.

116 ~ 3 l f h T f f ~ ~ A $

A:

)-Jy B:a

c0

eOOC COOMe

A 2.

>

Heat

< A :

e:

u (

OOMe

117. The products

A

and

B

in the following

.. reaction sequence are

3 4.

OH

so2

aq. NaCN. M n 4

A

dioxane

B

IPrOH.Mc2NH

r flux

116. The

major product A formed in the following

reaction is 1.

co

eOOC COOMe

A : 6 :

A

2.

Heat

-

A :

0 : 0J f

COOMe

COOMe

3.

2


35/42

The spatial part of the w ayefU ~ctio nof-th e

atom in its ground state is ls(1 ) 14 2) . The

spitrpaiGould be

1. a l)a 2)

2. P lIP 2)

3. [a l)P 2) + P l)a 2)1

NO, 2

NO2

i FGJ=4

f 3 r o r ; 4 ~ r ~ ~ w ~ ~ ~

The number of phases, eornponents and

deg ree s of freedom, wnen ~r is added to

n

eqGZbrium mixture of NO, O2 and NO2 in

gas phase are, respectively,

1 . 1 ,3 ,5

2

1 , 4 , 5

3

1 , 3 , 4 4 . 1 , 4 , 4

pyridine

-

O

120 The major product formed in the following

reaction is

sCI

pyridine

121

particle in a one dimensional harmonic

oscillator in x-direction is perturbed by a

potential

x

Is

a

number). The fi~st-orde r

correc tioxo the energy of the ground state

1. is o

2

is negaiive

3. is positive

4. may be negative or positive but NO T

zero


36/42

Ph

HO*OM~ B. LO

A = HO.

3 OH OH

122. Th e pioducts A and B in the followkg

sequence of reactions are

1. HX= HF an dA = Br

2. HX = HCl and A = Br

3.

H X = H B r a n d A = B r

4. HX = HBr and A = Br

H

OH

HoL Ho

eOH

I H

. .

- .

refbx,

4 h

A

O i ~

H+

The mass spectrum of the product A, formed

in the following reaction, exhibits M, M 2,

'

M 4

in the ratio of abo ut 1 2:1. The

OH

Ph

reagent

HX;and

the pr0duct.A are

-. -

A = H&+OM 6 = OM

. -

-- '.

7 . .Hx )

1 OH .

OH c

c ,

.

. .

A

Br

Hoq

.

A = HO B=

3

'O'

L

1. HX = HF and A = Br

A =

HO

3. OH

A = HHOO&~d B =

2.

HX

=

HCI and

A

=

Br

4

OH

8


37/42

125 A

..particle in a onedimensional box

potential

zero between o

a

and infinite

outside) has the ground state energy

above i l t o n i i n with +(x) = x(x )

yields energy

. . .

l .

.

Using a linear

c o m b i o n -two even func tlon ~x(x ~a1

- +

and xZ x ) , we obtain. yr ia tibnk

m i n i o the ground state energy as E2.

Which


38/42

128. If = 0.8

P

0.4 ~ is a normalized

molecular orbital of a diatomic molecule

. . .

, .

..

. ~ - - - . -

A constructed from P

and

which ax

. ., _^

I .i_.._,..___ 0 ii

- .

.,,.

< .:**,

.-.. ; .

also normallzed, the over1.y.2. etween-.A.v...L. P and

is . .

,.

1. 0.11 2 0.31

3. 0.51 4 0.71.

129. At a given temperature consider

Fe203(s) +3CO(g) Fe(s) 3C02(g);

K1= 0.05

2C02(g) CO(g) Ol(g); K2

=

2x

10-l2

The equilibrium constant for the reaction

mol- )

increased

he tempemlure by

4

K

If

the heat capacity of the calorimeter along

with

that

of the rgaterial is 2.4 kJ K- , he

molar internal energy of combmion,

in

kJ

is

1. 1000

2.

-1000

3.

20

4

-20

131.

The translational, rotational and vibrational

pa dti on functions for a molecule are

f-lation 10 m- 7 fmt tion 10, fv~~r tion

1

ksTh) 1O

at room temperature,

Using the appro xim ate data given above, the

frequency factor (A) for a reaction of the

type:

atom diatomic molecult?

-t

nonlinear

'

ransition state product

accordinp to the conventional transition state

theory is

1. 2 x lo3 2.

6 x

lo7

3. 2 x 1012 4. 6 x l0l3

1. 1000 2. 1000

.

132. The interplanar spacing of G O ) planes in a

3

20 4 20

cubic unit cell with lattice

130.

In

a bomb calorimeter, the combustion of

0.5 g of compound A (molar mass = 50 g


39/42

39

-

. .

133. A P B

f t

* 1- f*

e fluorescence llfetlme of a molecule in a

7 8 h q h m * r n m -

solution is 5@

s.

The sum of all the

nonradiative rate-constants

Zk,,,)

or the

A ' a m m r f i t g ~ ~ m ~

.

decay of excited st e i s 1 . 2 ~08 s -'. n e

d t ~ ~ w

X

l x P I T y i f ; flu ore sc en ce $ u a n t u m s d % f t h e.- - molecule

, m r

is

1. 0.1

1. 4,4 2. 4,8

2. 0.2

3. 8,4

4.

4 , 2

3.

0.4 w . 6

133. A

compound

A B

has a cu bic structure with 137.

W - W

3K&f

A atoms ~ c c ~ ~ ~ ~ ~ a l l t h eorners of the cub e

as

well a s all the face cen i i sZ I ' o% . Th e3

r m r r m % s t h * r n ~

I .

I

atoms occupy four tetrahedral voids. The

4 , 2 5 m 81 8

p H - a l R m a f * ~

v a l d s - o ~ ~ e l y ,re

.=

~ f ; s r f F e @ w

g 4 , 4 * - 2. 4,8,

3 8 ,4 4J4,2

8

1. 4, 25 3W 81. 2. 2,5 r(PTT 9.

134. CD3

D*

-1 a ESR -* 3. i l i , 115 isTT 119 4. i , I m 1

- -it;

137.

Solutions of three elecl~olyteshave the same

1. 1 2. 3

3.

4 v 7 ioniestrengtli m d - d i R & e ~ ~ ~ cC O n i

I

as

27?25

ifid

x

134. The number of lines

in

the ESR spectrum of

magnitude

bf Debye-HUckc-l creening engths 2

CD3 is (the spin of D is 1)

of the three so lut6 ns are

1. 1 2.

3

1.

4 , 2 5 a n d 8 1 .

2 2,5

and 9.

3. 4 4.

7 3.

112, 115 and 119 4. 1 , l a n d l

0

=

135. COz C=O 3TlTXT ZWT 120 pm 8 C02

1 .

@

3lT ZT fhl3

*t - --r;--- - fA-&c;I;IY

&-%

r\

I ~ ~ ~ ~

( C m Fh ?T

8

? i i X ? T 1 . 9x10- ~~ g ~

e m

- 2 . 5 ~0"~ kg) 2. cis- --* m

tram---

~

1.

1 . 8 x 1 0 ~ ~ k ~ m ~ 2. 3 .6 x1 0- ~ ~k gm ~

3. 5 . 4 ~o4' kg m2 4 . 7 . 2 ~ 1 0 ~ ' k g m ~

* m a

3.

cis- --& 7 w ~11s+cli'=m3 -

\

135.

The C=O bond length is 120 pm in C0 2.The

& f i av?T& T$

moment of inertia of C 0 2would be close ta

( m ak es o f C an d a re 1 . 9 ~0-27kg and

4. f i m * * r n h v

-

2.5X kg, respectively)

mT%Fr

@ ,8

1. 1 . 8 ~ 1 0 ~ 'g m 2

3. 5 . 4 ~ 1 0 ~ 'g m2

2' 3.6x lo4' kg m2

138.

Simple H i i c e molgcular orbital

theory

4. 7 . 2 ~ 1 0 ~ ' k g r n ~

1.

con side rs electron-electron repulsion

136. f%FbT *

V

iqS

?T m S f I 5 W F f

explicitly

2. distin gu ishes cis-butadiene and trans-

5 ~ 1 0 - ~ s $3 d f % 3 ~ % t ; * f ? R butadiene

mfr

363f m

T mEib3

a h EL)r

3. distinguishes cis-butadiene and

1.2x108 s

-

it; 1 i m nf;TAf4T

cyclobutadiene

4. has dif fer ent coulomb integrals for non-

mlXm*'f equivalent carbons

1. 0.1 2. 0.2

t


40/42

40

.< 27

\ A

.

' i~w. '

ul.

In

thii tiii eaver-~urk

of

( i~jaliite]-'

-7(--T&& o n ~ o n ) 1

for

&,

enzyme .. c t lyzed

reaction followiiig

.

MichaeliiMenten mechanism, the ...i :

139. iW

?RE

30

bar

W

El RTF

intercept is- s If the

initial enzymnzyme

mcenEratiun

is 1x104 M, the turnover

-

umber

is

1. 2.5~10~

.

.

2. 1.ox1o4

3.

2 . 5 ~ 1 0 ~

4.

2 . 0 ~ 1 0 ~

139. For the nondissociative Langmuir type

adsorption of a

gas

on

a

solid s;;face-

at

a

particular temperature t h e h t i o n of surf ce

coveme- is-35 at- 30 bar. ~ h i p T u

isotherm constant (in bar-' units)

at

this

temperature is

1. 0.05 2. 0.20 I

3. 2.0 4. 5.0

142. The E 6i1E direct product in Dj point group

contains the irrkduGble representations

140. For a set of 10 observed data points, the mean

is 8 and the variance is 0.04. The 'standard

deviation' and the 'coefficient of variation' of

the

data

set are, respectively,

1.

0.005,O.l 2. 0.02, 0.2

3. 0.20,2.5 4. 0.32, 1.0

3 4 4 ~ FmTr - 7 a x-&

3d73 W y- k

Ek 5000

M-' s

8

143. The result of the product Cz x)Cz (y) is


41/42

144. Given;

I

r ~

I

A. F O Q (s),+ 2e- Fe(s)+2 0 H aq);

E0=

-0 877

V

B. A13+(aq)+ 3e-+.Al(s); EO=

-1

66V

C. AgBr(aq) e- +Ads)

+

Br- (aq);

EO=

0 07

V

The overall r e e m or

the

cells in the

directi6.a.ofw faii-eo S.G.ge-wOU-i be

....- --

. .

-

. .

1. Cell with A&B

:

Fe

reduced

cehvith'A&c

:

Fereduced

2. ce ll wi& A&B . : Fe reduced

Cellwith A&C

:

Fe oxidized

3.

Cell with

A B

:

Fe oxidized

Cell with A&C : Ee oxidized

4. Cell with A&B : -Fe oxidized

Cell with A&C :. Fe reduced

S18 CSMH4 1 CH 4

i 7

145. The reagent

A

used and the major productB

formed in the following reaction sequence are


42/42

Chemistry 2014 csir net question paper

Documents

Transcript of Chemistry 2014 csir net question paper