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8/11/2019 CSIR Chemical Sciences Solved December 2012
1/57
8/11/2019 CSIR Chemical Sciences Solved December 2012
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: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
8/11/2019 CSIR Chemical Sciences Solved December 2012
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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:
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8/11/2019 CSIR Chemical Sciences Solved December 2012
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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.)
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8/11/2019 CSIR Chemical Sciences Solved December 2012
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5
~
P A
R T A )
1.
i;
8/11/2019 CSIR Chemical Sciences Solved December 2012
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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
8/11/2019 CSIR Chemical Sciences Solved December 2012
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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
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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
8/11/2019 CSIR Chemical Sciences Solved December 2012
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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)
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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
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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
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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
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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
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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
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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
,
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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.
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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
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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
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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'
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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
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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
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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
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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
8/11/2019 CSIR Chemical Sciences Solved December 2012
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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