CSIR Chemical Sciences Solved December 2012

8/11/2019 CSIR Chemical Sciences Solved December 2012

1/57


2/57

:H

ifi1liq; 5 9 2 2

. Will : 3:00 Fit

2012 (II)

' W/491 ffl$191

ITR ra

Tf'di i :

200 atcf;

1. ~ ~ < i f f ~

J"IT t

1 $W rRmr ~ ~ ~ f i t ~ (20 qpr A ~ + 50

qpr 'B'

+

75 qpr 'C' f


3/57

m

h

e

k

c

amu

G

R

m

h

e

k

c

V

e

amu

G

R

R

..

-'

1.6 X

J0-19 j

1.67 x

o

2

7

kg

667

X

I

o Il

k

8 .854

x J0 -

12

Fm -

USEFUL

FUNDA

MENTAL

CONSTA

NTS

M as

s of el ec t

ron

Pla n

ck's cons

tant

C ha rge

o

f electr o

n

Bol tzm

ann cons

tant

Vel oc i

ty of Lig h

t

1

.6 X

lQ-19 j

1

.6 7 X J0

-

27

kg

Rydber g

consta n

t

A v

ogadro n

u m b e r

8 .8

54

x

J0 -

12

Fm-

1

Mol a r

Gas const

ants

9.

I I

X I 0

31

Kg

6.63X

Io

4

Jse

c

1.6

X J0-19

c

I.38 >

J0 -

2

J/K

3.0

x

JO

Krn Sec

1 .0 97

x

1

0

7

m-

6.023 I0

23

moie-

1

8

.314JK-

1

mole-'

9.

I I X

JQ -

31

Kg

6.63 J

O--'" Jse

c

1 6

X ]Q

-19

c

1.38 X J0 -

23

J/K

1 .09

7x IO

"'m'

6.023 x

I 0

23

mole

1

8.314JK

'molt:

www.examrace.co


4/57

Element

Actinium

Aluminium

Americium

Antimony

Argon

Arsenic

Astatine

Barium

Berkelium

Beryllium

Bismuth

Boron

Bromine

Cadmium

Calcium

Californium

Carbon

Cerium

Cesium

Chlorine

Chromium

Cobalt

Copper

Curium

Dysprosium

Einsteinium

Erbium

Europium

Fermium

Fluorine

Francium

Gadolinium

Gallium

Germanium

Gold

Hafnium

Helium

Holmium

Hydrogen

Indium

Iodine

Iridium

Iron

Krypton

Lanthanum

Lawrencium

Lead

Lithium

Lutetium

Magnesium

Manganese

Mendelevi

urn

4

LISTO

THE TOMIC WEIGHTS

O

THE ELEMENTS

Symbol Atomic

Number

Ac 89

AI 13

Am

95

Sb 5

A

r 18

As 33

At 85

a 56

Bk

97

Be 4

Bi 83

8 5

Br 35

Cd 48

Ca 20

Cf

98

c

6

Ce 58

Cs

55

Cl 17

Cr 24

Co

27

Cu

29

Cm 96

y 66

Es 99

Er

68

Eu

63

Fm 100

F 9

Fr

87

Gd

64

Ga 3

Ge 32

Au

79

Hf 72

He 2

Ho 67

H

In

49

I 53

lr 77

Fe 26

Kr 36

La 57

Lr

103

Pb 82

Li 3

Lu

7

Mg 12

Mn

25

Md

101

Atomic

Weight

227)

26.98

243)

121.75

39.948

74.92

210)

137.34

249)

9.012

208.98

10.81

79.909

112.40

40.08

251)

12.011

140.12

132.91

35.453

52.00

58.93

63.54

247)

162.50

254)

167.26

151.96

253)

19.00

223)

157.25

69.72

72.59

196.97

178.49

4.003

164.93

1.0080

114.82

126.90

192.2

55.85

83.80

138.91

257)

207.19

6.939

174.97

24.312

54.94

256)

Element

Mercury

Molybdenum

Neodymium

Neon

Neptunium

Nickel

Niobium

Nitrogen

Nobelium

Osmium

Oxygen

Palladium

Phosphorus

Platinum

Plutonium

Polonium

Potassium

Praseodymi

urn

Promethium

Protactinium

Radium

Radon

Rhenium

Rhodium

Rubidium

Ruthenium

Samarium

Scandium

Selenium

Silicon

Silver

Sodium

Strontium

Sulfur

Tantalum

Technetium

Tellurium

Terbium

Thallium

Thorium

Thulium

Tin

Titanium

Tungsten

Uranium

Vanadium

Xenon

Ytterbium

Yttrium

Zinc

Zirconium

Symbol

Atomic

Number

Hg 80

Mo 42

Nd

60

Ne 10

Np 93

Ni

28

Nb 4

N 7

No

102

Os 76

0 8

Pd 46

p 15

Pt 78

Pu 94

Po

84

K

19

Pr

59

Pm

6

Pa

9

Ra

88

Rn

86

Re

75

Rh

45

Rb 37

Ru 44

Sm 62

Sc

2

Se 34

Si. .14

Ag

47

Na

Sr 38

s

16

Ta 73

Tc 43

Te

52

Tb 65

Tl 8

Th 90

Tm 69

Sn

50

Ti 22

w 74

u 92

v

23

Xe

54

Yb

70

y 39

Zn

30

Zr 40

Atomic

Weight

200.59

95.94

144.24

20.183

237)

58.71

92.91

14.007

253)

190.2

15.9994

106.4

30.974

195.09

242)

210)

39.102

140.91

147)

231)

226)

222)

186.23

102.91

85.47

101.1

150.35

44.96

78.96

28.09

107.870

22.9ll98

87.62

32.064

180.95

99)

127.60

158.92

204.37

232.04

168.93

118.69

47.90

183.85

238.03

50,94

131.30

173.04

88.91

65.37

91.22

"Based on mass of C

2

at

12.000 The ratio

of

these weights

of

those on

he order

chemical

scale 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.)

www.examrace.co


5/57

5

~

P A

R T A )

1.

i;


6/57

6

6

XY C'7c

1

if

5

qfJ f5r

\Rlr \[E

li ?fiTr j} {

R

JM

lr

if t;

I

C

ff

X

--3TeT q;'r

Ff 1T t; rr.w

y--JT

er

if

6

\R

TcfiT

\[Eli t

;

I

R cf;

g

A cir

cle

of

ra

dius 5

units in

the XY p

lane ha

s its cen

tre in th

e first qu

adrant,

touches

the

x -a x

is

and h

as a cho

rd

of

en

gth

6

un

its on th

e

y-ax is. The co

ordinate

s

of

its centre are

1.

(

4,6)

2 (3

,5)

3. (5,4)

4.

(4,5)

7.

6 7ft

77i; ffT?

if R cffrur 1

1ft crrc;rr

\[Eli

i/gB

.fiH /) JriJ5R

li fmT

t; fr

li

R cffrur

ffrr:

\

[E li lfr

H C

j} {

frlizrr

li1

TfiTt; I

ffT? W


7/57

7

10. 3l W,

ar

rffiR aey

cftrr f'it-51

fr

f&

rrr# 1[Cii tfEr

t_

4

=

44

.

Th

e c

orre

lati

on c

oe f

fici

ent

betw

ee

n tw

o a

rbit

rary

v a

riab

les x an

dy

is z

ero

i

f

1

=

3

=

2

4.

=

1.

erg

- 2

00

K

r

t

q

f 6

0J

l

1 iN fT

3ir

t rr

/i

ff lT

2

. er

g- 2

K

rt

q

f 5

0 J

l

1i N fT

3ir

t rr

/i

f f lT

3. erg

- 2

5

K

r

t

q f

6

0J

l1

iN fT

3ir

t rr

/i f

f lT

4

e

rg-

25

0 K

rt

q

f 50

J l

iNfT3irt

rr

/i f

flT

www.examrace.co


15/57

15

45

A Carnot engine takes up 90

J of

heat from the source kept at 300

K.

The correct statement among

the following is

1. it transfers 60 J of heat to the sink at 200 K

2. it transfers 50

J of

heat to the sink at 200 K

3. it transfers 60 J

ofheat

to the sink at 250 K

4. it transfers 50 J

of

heat to the sink at 250 K

46 E

1

i721TE

2

1\iff ctft c i t ~ lilT

t ~ l ~ l i ' 1 ' 1

icrr

< iT gfic


16/57

6

50 T[i f f

ff:J

rrrftc

Fffc;r ctft 3114l:.S7 :.S

Fffc;r ct

3l7imFzr frrc;rrlrrUfTfiT I

Agl

w

T[iff

?ifc;r

t Fumctt wrrg

Cf5Vfft t

2

No;

50

A dilute sil

ver nitrate solutio

n is added to a slig

ht excess of sodiu

m iodide solution

. A sol of Agl

is

fo

rmed whosesurfa

ce adsorbs

2

NO;

51 0

2

w31W'rr:rur

T[iff qif f

WFR cmfrrr

t li 'r 56875 em -

1

T N ~

~ lfr

IJIT{{t t1

~ T N

w T[i f f 3TTET

t f

r

rwr

Pj(Og)

fff lT

T[iff

t fr T:f?17T7 J (

Oe) lftrrr fr

I Oe

r O

g

ct "iitr

iJi\ilf

3irff

15125 em

- fr 02 Cfft

J1TET fMfr Cfft Fc#r

rurrr iJi\ilf (em

J t :

5687

5

1

15125

2.

15

125

56875

3. 72000

4.

4175

0

51 The

absorption spectr

um of 0

2

shows

a vibrational stru

cture that becom

es continuum at

56875

cm-

1

At

the continuum, i

t dissociates into

one ground state

atom

(Og)

and on

e excited state ato

m

Oe). The energy differ

ence between Oe

and Og i

s

151

25

cm-

1

The dissocia

tion energy(in em

-

1

of

ground

state of 0

2

is

56875

1

5125

1.

2.

3. 72000

4. 41750

15125

56875

52

T[iff Y JElf fU{

FFfm IJfTC>fCff

;; (11 0 "fff JT

(111) f.Rifim

Fc

Pir \i f crrc?

eft nc# q}

ifrq

CfJT

ctfrurt

52

T

he angle between

the two planes re

presented by the M

iller indices

(110) and (111)in a s

imple

cubic latt

ice is

53 f [ f i

t i f i ~ R r q ;

ct (x

-JTet) ct

m

w 3fTUTfitq;

ct JffRUT (y-JTet)


17/57

3

y

l

I

I

I I

I M I

X

4.

y

l

. 7

I

I I

_

I I

I I

I

x

53

The correct representation

of

the variation

of

molar conductivity y-axis) with surfactant

concentration x-axis) is [CMC =cr itical micelle concentration]

1

y

l

I

I I

-

1

cMCr

X

3

y

l

I

I I

I M I

X

54

f Fr

3Tfi ffl>zTT

if iRWCi

fr

Me

P h ~ N

0

Me

0

1

P h ~ O M e

Me

3

Ph :}=o

2.

4.

2

4

Ag20

MeO

hv

y

l

y

l

Me

0

x

I I

-

1

cMc

1

-

l I

I I

x

P h ~ O e

Me

P h ~ O e

0

www.examrace.co


18/57

18

54. The major product formed in the following reaction is

Me

P h ~ N

0

Me

0

1

P h ~ O e

Me

3 P h ~ o

MeOH

hv

l le

4 P h ~ O e

0

55. p - ~ l w f / 4 < \ J ) $ C f J

3{1 (1 ct

pKa

i>T 117 14.46 t,

ff2lT

3{1 (1 i>T

4.19 rr'r

i>T

CJpara

t.

1 8.65 2 4.32 3 0.27

4 -0.27

55.

If

the

pK.

value for p-methoxybenzoic acid is 4.46 and that ofbenzoic acid is 4.19 the crpara for

methoxy group is

1 8.65

2. 4.32

3 0.27

4

0.27

cadinene

56.

The biosynthetic precursor of cadinene is

cadinene

1 shikimic acid

2 mevalonic acid

3

arachidonic acid

4 prephenic acid

www.examrace.co


19/57

19

57.

~

A C rtt w mft W r

0

0

~

a ?

H O A O

HO 0

0 0

A

8 c

1 A > B > C

2 B > C > A

3. C > A > B

57.

The correct order

of

acidity

of

the compounds A Cis

~ ~

0

A 8

c

1 A > B > C 2. B > C > A

3 C > A > B

;Ph piperidine ~ ;Ph CO

H N ~ : _ : _ _ _ 2

o {_ COOEt COOEt

0 . ?

3.

syn f.1rxm:Fr

58.

The mechanism involved in the following conversion is

Ph

HN\

0 ~ COOEI

0

1 E

2

-elimination

piperidine ;} Ph

. . . : . . . . . . : . . . .__ +H

2

\

COOEI

~

C0

2

2

E

1

-elimination

3 sy

elimination

M e o s o ~

~

- \__

A)

~ p s o ~ ~

B) f ]nHtl

1

ctcrc

A dl -1TB

2.

rtcrc

A

dl -1T

C 3 .

rtcrc

C

dl -1T

D

4. B > A > C

4. B > A > C

4.

E l c b ~

4 E 1cb-elimination

4 rtcrc

c

www.examrace.co


20/57

59

20

Thec or

rect state

men t s)

A-D are g

ivenfor

the follo

wingreac

tion.

he c

orrect on

e s) is a

re)

,OF

(o)

e

2

S

,.::.

DM SO

A) ar o

matic

pso su bsti t

utionrea

ction

B) a

romatic e

lectrophi

lic substi

tution

1.

A an

d B on ly

hv

1. ; fr

ffw WP

R l

3

. ~

~

2.

A and C

only

e O S ~ N ~

~

\_

C)

ar omati

c nucleop

hilic sub

stitution

D) ar o

matic fre

e radical

substitut

ion

3.

C and D

o nly

4. Conl

y

2. ; frffw W

PR

I

I

4.

~

~

~

60

Th

e fo llow

ing photo

chemic a

l transfor

mation p

roceeds t

hrough

hv

1

.

N or rish

type I rea

ction

3. Barton reaction

N_

rPh

_).__

~

+

S N

I

Ph

l/

6 RiilccJ$'5

fr

1.

Phe

-Ala-Gl

y

OH

P h b

N

Ph

2. Phe-Gly

-Ala

2. N o

rrish typ

e II reac

tion

4. Paterno-Buchi reaction

3. Al

a-Gly-P

he

4. G

ly-Ala-P

he

61

A t

ripeptide

gives the

followin

g produc

ts on Ed

man degr

adation.

N

_rPh

_ .__

~ +

S N

I

Ph

The trip

eptide is

1.

Phe

-Ala-Gly

2. P

he-G ly-A

la

3. Ala

-Gly-Phe

4. G

ly-A la-Ph

e

www.examrace.co


21/57

21

62

.

29

3

K w lFcrm

FcP

ir 7J it Vcti

1

H NMR ~ i

f Vcti Cfi frff.1q;

l/)frrq;-

C

3

H

7

NO),

f

l 'f

f

iT o

7.8 1

H, s , 2.8

3 H, s ney 2.6

3 H, s wcmffrr

1

C

l/)frrq;-

62.

0

1.

3. M

e,N lMe

H

N

4. l

M

e OMe

In

the

1

H

NMR

sp e

ctrum recorded at

293 K, an organic

compound C

3

H

7

NO),

o

7.8

1

H, s), 2

.8

3

H, s) and 2.6

3 H,

s). The com

pound is

exhibited signals

at

1.

0

3.

Me

l

N Me

N

4.

l

Me OMe

63. p-rti J

;)lf>PIC'I


22/57

22

65

The major product formed in the following reaction is

co

H

1.

~ C H O

~

H

3.

~ C O N M e

~

H

OH W

2 I

_ .

N

H

2. ~ ~

4. 1[fli

66

The first person to separate a racemic mixture into individual enantiomers is

1.

J. H. van t Hoff 2. L. Pasteur

67

[

18]-

eli

fdil f 1k:r qm ff W frr-ErR

A)

< I E ~

3. H. E. Fischer

(B)

H N M R ~ i t ~ > T & r 8 9 . 2 8 w ~ ~ ~ l

C) ef?r

if fP8.

ritc f

1

A, B, C

2.

A fff JT B 3. Cficrc r B fff JT C

67

Consider the following statements for [18]-annulene.

A) it is aromatic

B)

the inner protons resonate at 8 9.28 in its

1

H

NMR

spectrum

C)

there are six pro tons in the shielded zone.

The correct statements are

1.

A, B, C 2. A and B only 3.

Band

Conly

A 8

,,,i H

M e ~ Me

~ : . 8 ~

4. F. Wohler

4.

~ fff JT

C

4. A and C only

,

www.examrace.co


23/57

23

1. H

A, HB

i:TP t

74/J;/fil

fr. H Br

1

, B

\ 57

41ri JR

4)dfil

2.

HA,

HB

\ 574

1=RIR4

)c/fil

fr. H

Br

1

, B

% 4 / J ; T

i /

3. H

A, HB

\5

14i=R

IR4lc7

fi/ fr. H

Br

1

, ~

&)'1

)c/fi}

ff

4 HA, HB

i ~ P t 4 / j ; / f

fr. H

Br

1

,

B1 l'1lc/fi'l

68

In th e co

m pou

ndg iv

en bel

ow, th

erela

ti on b

etwee

n HA,

H

8

; a

ndbet

w een

Br

1

, Br

2

is

1.

HA, H

8

a

re e na

ntiotr

opic;

and B

r

1

Br

2

are d

ia stere

otopi

c

2

.

HA, H

8

ar

edias

te reot

op ic;

and

Br

1

Br are e

nantio

tr opic

3.

HA,

H

8

are d

ia ster

eo topi

c; and

Br

1

,

Br

2

ar

e hom

otopic

4.

HA,

H

8

are e nant iotropic; and

Br

1

Br

2

are hom oto pic

B o c

N

~ O

A c

H

OT

BDM

S

1.

HCl

EtOH

Ilfftc

rrf

3.

K2C0

3

M

eOH

2

Bu.J

*

4.

CF

3COO

H E

tOH rt

69.

he

m ostappropr iatereage

nt to e

ff ect t

he fol

lo wing

chem

osele

ctive

conve

rs ion

is

B o

c N

~ O

A c

H

OTB

DMS

B

o c

N

~ O

H

H

OT

BDM

S

1 H Cl

, E tO H

,refl

ux

2. Bu4 N

F

3. K

2

C

0

3

M e

O H

4

. C

F

3

COO

H , EtO

H , rt

1. ~

- i f

r ; r

mwrur

2

#'m'fN

Ac

20/f.r

i;fc;r

AlCh

Cfi

?1

f.

f i T f

f 2 c > I ~

3.

Q(>qj)$J(>J

3P ( f

i

t \Jfrrr?7

3/Jq /q]'(U/

4. \jf(>

j t

~

fr. H

3P ( f qft

~

~

70

Amon

gthe

fo llow

in g, a

n exam

ple

o

f

a G

re en S

ynthe

sis is

1 synt

he sis

ofm al

achite

green

2.

Fried

e l-Cra

ft 's ac

ylatio

n

of

a

ni sole

with A

c

2

0

/anhy

drous

AlCh

3. Jone

s ' oxi

da tion

of

benzy

l

a

lc ohol

to be

nz oic

acid

4.

D

ie ls-A

ld er r

eactio

n o

ffuran

an

dm a

le ic ac

id

in

w

ater.

www.examrace.co


24/57

24

~ P A R T C )

71. 139 amu rt f Cfi '1,CfC'Il$\5

CffT

rrffre1r:r

\Jiliff

2.5 MeV

fr1

?t

\Jiliff

keY

.;-

fr:

1. 12.5

2. 15.0

3. 20.5

4. 25.0

71. The recoil energy of a Mossbauer nuclide

of

mass 139 amu is 2.5 Mev. The energy emitted by the

nucleus in ke V is

1. 12.5 2. 15.0

3. 20.5

4. 25.0

72.

3TT'f

j a c - [ M o C 0 ) 3 ~ 3 ]

crrc rt C-0 rrrM rftir 7JiJ

~

PF3

A);

PCb

B); P Cl)Ph2

C);

PMe

3

D)

v CO), cm-

1

: 2090 i); 2040 ii); 1977 iii); 1945 iv)

fff T W f /}

?1tr

Trc

fr

:

1.

A-

i)

B- ii)

C- iii)

D-

iv)

2.

A- ii) B- i)

C- iv) D- iii)

3.

A-

iv)

B-

iii)

C-

ii)

D-

i)

4. A- iii) B- iv) C- i)

D-

ii)

72. Complexes

of

general formula,fac-[Mo C0)

3

phosphine)

3

] have the C-0 stretching bands as given

below.

Phosphines: PF

3

A); PCh B); P Cl)Ph

2

C); PMe

3

D)

v CO), cm-

1

: 2090 i); 2040 ii); 1977 iii); 1945 iv)

The correct combination of the phosphine and the streching frequency is,

1.

A - i

B- ii)

C-

iii)

D-

iv)

2.

A-

ii)

B-i)

C- iv)

D-iii)

3. A- iv) B- iii) C- ii) D-i)

4. A- iii) B- iv)

C-i)

D - ii)

73. X M

W:rrr crrc

Pb

2

+ rt 9.5ml FiJc;r rt

1fTTFf

w Id I

~ A

TffllT

7fllT1

1fTTFf rt T[Cf uw0.5

ml Pb

2

+

FiJc;r W ffr

0.04 M

2ft frrc;rror

TTllT

fiT

ld 1.25 ~ A TffllT

7fllT

X

fr:

1.

0.0035

2. 0.0400 3. 0.0067

4. 0.0080

73. On subjecting 9.5 ml solution ofPb

2

+ ofX M to polorographic measurements, ct was found to be 1 IJ.A.

When 0.5 ml of0.04 M Pb

2

+

was added before the measurement, the

Id

was found to be 1.25

IJ.A.

The

molarity X is

I 0.0035 2. 0.0400 3. 0.0067 4. 0.0080

www.examrace.co


25/57

5

~ I

~ I I

A

CH

3C

OO

H,

i f

i)

W

311= P

f

B

CH

3CO

OH

,

H

2S0

4 if

ii)

311= P

f

c

HC

l0 4

, H

2S

04if

iii)

W

er

RCii

S

bF

5

H

F if

i

v)

erR

Cii

1

A -

i)

B

-ii )

C

-ii

i)

D -

iv )

2

.

A-i

i)

B-

i)

C

-ii

i)

D -

iv )

3

.

A-i

ii )

B-

iv )

C

-ii )

D

-i)

4.

A

-iv

)

B-i

i)

C

-ii i)

D -

i)

74

M

atc h

ea

ch i

te m

fro

m

the l

is t I

co

m p

oun

di n

so

lv en

t) w

ith

tha

t fr o

m

th e

li st

II i

ts b

eha

vio

ur)

and

s

ele

ct th

ec

orr e

ct c

om

bin a

tio

nu s

ing

the

cod

es

giv e

nb

e lo

w

Li

st I

Lis

tII

A

C

H3C

OO

H i

npy

ri d

ine

i) s tr

ong

aci

d

B

C H

3

CO

O H

i n

H2

S04

ii

)

wea

ka

cid

c

H C

10

4

in

H

2

S

04

ii

i)

s t

ron

gba

se

S

bF

5

in

H F

iv)

w e

akb

ase

1

A-i

)

B-i

i)

C-

iii)

D-

iv)

2.

A-i

i)

B-

i) C-

iii)

D-

iv)

3.

A

-iii

) B

-iv

) C-

ii)

D

-i)

4

.

A-

iv)

B-

ii )

C-

ii i) D-

i)

2.

~

o

i t R

4.

~

o

i t

R

7

5

Stru

ctu

re o

fa

carb

ora

ne

w it h

fo

rm u

la ,

C

2

B

4

H

8

is

form

al l

yd

eri v

ed f

rom

1.

Cl

oso

-bor

an e

2.

N id

o-b

ora

ne

3

A

ra c

hn o

-b o

ra n

e

4.

Co

nj un

ct o

-b o

ra n

e

16

fl

Tcr t

3

T N

3

11= Pf

m

ar

t

q

v;g

'C'110

C

hlfl qft

t

IR

fClfT

3f

l ffif

T

fr Cfli'i

f

1

.

'C'1

10 CI

5lfl

H

:JC1f

f fR

fiT fr

1

2

'C'1

70 CI5

lC'1 c

t fi7

'Z{

ztTf

ircp ~

i t

B O

H)

4- ~

m

r

fr1

3.

Jl 1{>

f 8RT

:f r

o

f t

1

C'110

ChlC'1

8

RT

ec;J

flirfi

iljH

ma

rf

r I

4.

r

W

fc/

c;rrlr

cp if

Jl1 {>

f w

ma

r

t

1

76

Bor

ic a

cid

is a

we

ak a

c id

in

aqu

eou

s so

lu ti

on.

But

its

aci d

ity

inc

re as

es s

ign

ifi c

antl

yin

th e

pr

esen

ce

o

f e

th yl

ene

gly

col

, be

cau

se

1 e

th yl

ene

gly

col

rele

ase

sa d

dit i

ona

lI

2. B

O

H )

4

- is

con

sum

ed i

nf

orm

ing

ac

om p

ou

nd w

it h

eth

yle

ne g

lyc

ol

3.

et h

yle

ne g

lyc

ol n

eut

ra li

zes

f

ele

ase d

by

bo

ri c

ac id

4.

Bo

ri c a

cid

dis

so ci

ate

s be

tt e r

in t

he m

ix

ed- s

olv

ent

www.examrace.co


26/57

26

1.

2

2.

4

3

.

6

4

.

8

7

7.

Co

or

din

ati

on

nu

m

be

r o

f

C

in

B

e

2

C

3

wh

os

es

tru

ct

ure

is

co

rr

ela

te d

w

ith

th

at

o

f C

aF

i

s

1

. 2

2

4

3

. 6

1

s

m

a

ruJ

t

fiTC

T

t

t

;;

FrP

l}

t

m

C

fi2F

fi w

f

cr q

R

A

.

1

H

N

M

R

i t

5

.4 8

cr

3

1

8 pp

m

w r:[C

fJT f[Cfi "f imfi vet 0JWCt FfT/ft

r/i

-mft

'(171/q?.Jcfi

?[5I"

t

1. cis-Pt NH3)zCh rrey PtCl_l- 2. trans-Pt NH3)zCh f T PtC4

2

-

3.

cis-Pt NH3)2Ch

rrey

Pt NH3)/+

4

trans-Pt NH3)zCh f T

Pt NH3)/+-

87. The platinum complex ofNH

3

and cr igands is an anti-tumour agent. The correct isomeric

formula of the complex and its precursor are:

1. cis-Pt NH

3

)

2

Clz

and PtC4z- 2.

trans-Pt NH3)zClz and PtcV-

3.

cis-Pt NH

3

)2Cb

and

Pt NH

3

)

4

2

+

4 trans-Pt(NH

3

)zC1z

and Pt NH

3

)

4

+-

88 Fe N0

3

)3-9H

2

0

r/i FJ'rc;r r/i

i'77l TNaCI, H

3

P0

4

,

KSCN rMT

NaF

r/i 13m'


30/57

3

3.

[F e

H

2

0) s

C1]

2

, [

Fe

H

2

0)

6

]

3

, [

Fe H

20

)s S

CN

)]

2

, [F

e H

20

)sFf

+

4

.

[Fe

H

2

0)sC

1]

2

, [

Fe H

2

0

)s P

04)

], [

Fe H

20

)s S

CN

)]

2

,

[F

e H

2

0)

4 S

C N)

F]

1

1

[

Rh

CO

)z

hf

3.

[

5

-C

pR h

C

O)z

]

2

[I r

PP

h

3

)

2

C

O)

Cl]

4.

[

5

-

Cp

2

T

i M

e)

Cl]

89

W

hic

ho n

e

of th

efo

ll ow

in

g w

il l

O

T un

der g

oo

xid

ativ

ead

dit

io n

by

m et

hyl

io d

id e?

1

[R

h C

O)

zl 2

r

3.

[

5

-C p

Rh

CO

)z ]

2

[I r

PP

h

3

)

2

C

O)C

l]

4

. [

5

-C

p

2

Ti

M e)

Cl]

9

0

[R

h P

Ph 3

)3

CO

) H

)]

f i

T ~

ft

m

\

Nlll

7r Cf

R't c

rrcift

i5

1 )

Jl(]Jf

if


31/57

31

92. (i)

[C u(OHz)6]

2

;

(

ii) [M n(OHz)6f+

; (iii) [Fe(0Hz)6

f+; (iv) [Ni(O

H

2

)6 ]

2

,

ef:3ff

OHz (ii) >

(iii)>

(iv)

3. (ii) >

(iii)> (iv) > (i)

2. (i) > (iv) >

(iii)>

(ii)

4. (iii)

> (i)

>

(iv)

>

(ii)

92.

The rate

of exchange of OH

2

present in the co

ordinat ion sphere

by

18

0H

2

of, (i) [

C u(O H

2

6

]

2

+;

(ii)

[

M n( OH

2

)

6

]

2

; (iii)

[Fe(OH

2

)

6

]

2

;

( iv)

[Ni(OH

2

)

6

]

2

+, fo l

lows an ord er

1.

(i)

>

(ii) >(iii)>

(iv)

3

(ii)

>

(iii) > (

iv ) > (i)

2

(

i) > (iv)

>

(iii)> (

ii )

4.

(iii) > (i) > (iv)

>(ii)

93.

m

g ~ rF 3lJ7RU

T W 31ltTTf?rr

f.F:rr

CF> Fit

W fZrc

rR

I

A

.

~

i t liR ff

0

2

rtfr

'f1f}(;l:r CRflT

t F.irmt q ~ / C f f l i ' 5

fFffft

t I

B. iJ

Rf f

H

20 cit

m fi;lr CfR'ffT

f fWf

Vifi

Vff i f rrfWJ Mi)iiliffll$'5

CfRTfl7

c.

aiffiffl wr

'k

C77N

01

rtfr

'f1f}(;l:r CRflT

t

F.irmt


32/57

32

C W h

ile Fe-C

O is line

ar ,Fe-0

is bent a

nd is re c

ognized

byhemog

lo bin.

D T

heinterli

nk ed fou

r monom

er ic units

in the h

em oglob

in are res

po nsible

to overco

me the

pi t

fa lls.

The co

rrect set

of statem

en ts is,

1 Aand B

2

A an d

C 3. Can

dD

4

B

andD

95

Aff lT

B,w

frrc:rf?ur

t

JP

m:

Cl

I

A

) SnC1

2

+

C

o

2

(C0)

8

O C )

4Co- r

-C o C

0)4

Cl

M

e

I

(B )

Me

2

SnC1

2

+

2N aR e(C0)

5

- - - - ; ~ O C s R e - S n - R e

C 0

+

2NaC1

I

Me

2.

Fctf.'/7:rl ,

f

.rimrr

95

R

ea ctions

Aand B

are, term

ed as re s

pe ctively

Cl

I

A) Sn

CI

2

+

C o

lC O)g

O

C)4Co

-Sn-Co

C0)

4

I

Cl

Me

I

(B ) M

e

2

SnCI

2

+

2NaRe

(CO)s

- - - - ;

~ O C s

R e - S n -

R e C 0

+

2NaC

I

I

Me

1

Inser

tion, Met

at hesis

2 Metath

es is, Inse

rt ion

3 Oxidat

iv e addit

io n, Meta

th esis

4.

Oxidative

addition

, Insertio

n

96.

ETTg rr>T ffht

cc;fi T

FF7ffl 1.33 rrr

rr

fftlcc t

fir m C ft

? {&

frrcpc t:

1 23

2

24

3. 25

4. 2

6

96 . A

metal cr

ys tallizes

infcc st

ructure w

ith a uni

t cell side

of 50 0

p

m. f he

density

of the cry

stal is

1.3

3 glee, th

e molar

mass o

f

t

hemetal

is close

to

1 2

3

2.

24

3. 25

4.

26

www.examrace.co


33/57

33

9

7.

i't

?tr

o

fie

df f

f#

J

T1

J

arfT

rfi

iRlr

A

+

BC

~

AB

+

C

q

IF

iif

f

E

o

~

3

TJ

llfF

f

/

.}

C

J5

14fA

H

q

vm

ft r

rT

31T

WT

q

v

mf

t

fi?

>

1

314R4frfrt

vt1T

I

2.

A

li

Fc1

~

3

.

A

li F

c

1

Flb

fi

4

A

li

F

c1

c;

)&J

w t

l' l

~

I

97

.

Th

e

act

iva

tio

n

en

erg

y

for

th

eb

im

ol

ec

ula

r r

eac

tio

n

A

+B

C

-- 7

A

B

+C

i

s

E

0

in

the

g

as

ph

ase

.

If t

he

r

ea

cti

on

is

ca

rri

ed

ou

t i

na

co

nf

ine

d

vo

lum

e

of

3

t

he

ac

tiv

ati

on

en

er

gy

is

ex

pe

cte

dt

o

1

re

m

ain

u

nch

an

ge

d

3

d

ec

rea

se

w

ith

de

cr

eas

in

g')

,

2

in

cre

as

ew

ith

d

ec

rea

sin

g

A

4

o

sc

il l

ate

w

it h

d

ecr

ea

sin

g

A

98

V

Cfi

< J

S

~

W1

fT1

J

C

fier


34/57

34

100 The number ofiR active vibrational modes of pyridine is

C2v

Ez Cz

av

AI

1 1 1 1

z

Az

1 1

-1 -1

Rz

B1

1

1

1

1

x,Ry

Bz

1

1

1

1

y,Rx

1 12

2. 20

3. 24

4. 33

101 Ti ctT I[ClJ CfiT

J?HctJ;TPICIJ

fcR:rm fr [Ar]4i 3aJ 4p

1

1 fcR:rm

ct CfiC?

m cs crwrr ctr ?liT

fcMr;ft

t?

1 9

2. 15 3. 27

4. 60

101 One

of

the excited states ofTi has the electronic configuration [Ar]4i 3d

1

4p

1

The number of

microstates with zero total spin (S) for this configuration is

1 9

2 15

3 27

4.

60

102 W i/C;

rrT5f

m zrrc;ft A2

2A

ct ffrit fcJ

p if T- 0

2. f

CSIR Chemical Sciences Solved December 2012

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Transcript of CSIR Chemical Sciences Solved December 2012