paper dec. 2014

sr.No. 17860
ST'BJECTCODE
.E
20r4Gr)
CIIEMICAL SCIENCES
TEST BOOKLET
MXI,BT
CODE
tr
Maximw
Time : 3:00 Hours
INSTRUCTIONS
t.
you have opted-for English as medium of Questbn Paper. This Test Booklet contaim
one hundred ard
4.
(MCQ$.You are required to answqr a maximum of
15, 35 and 25 que*ions
of questions are
number
'C' respictively. If more ttran(A'required
dom part,i'
will be
respectively,
'C'
'B' and
answered, only frnt 15, 35 and 25 questions in Parts
taken up for evaluation.
OMR answer sheet has been provided separately. Before you start filling up your
particulars, please ensure that tie booklet contains re4uisite number of pages and that
tlrc
drese are not torn or mutilated. If it is so, you may request the Invigilator to change
rough
for
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also.
sheet
answer
booklet of the same code. Likewise, check the OMR
work have been appended to the test booklet.
Write your noil No., Name and Serial Number of this Test Booklet on the OMR answcr
sheet in the sp'ace provided. Also put your signatures in frre space earmarked.
Questions
3.
fo*ylve (20 Part'A'+50 Part'B'+75 Part'C') Multiple Choice
.d'-and
ffiooklet
ts
Ii6ii-the
Code and Centre Code on the OMB answ.er sheot
Answer Sheet. failins which. the comnuter shall not be able to decipher
in lose- includins reiection of
OMR answer sheet.
5.
6.
and
'B'
8.
for each question, the correct or the best anslver'
Candidates found copying or resorting to any unfair means are liable to be disqualified
from this and firture examinations.
Candidate should not write anything anywhere except on answer sheet or sheets for
9.
rough
- - -g-- work'
'j -- --Use of calculator is NOT Permiued.
7.
10.
ll.
Rou
carries 2 marks and Part'C'questions carry 4 marks
each respectively. There will be negative marking @25Yo for each wrong answer.
iB' and 'C' four alternatives or responses are given'
Below each question in Part 'A',
Only one of ttrese altematives is the "correct" option to the question. You have to furd,
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ffir
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CanAilates who sit for the entire duration of dre exam will only be permitted to carry
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No....l.l.9.t6.t
Nu-".$oo1n,l; Stgsto*r(.
oMR,A,nswer Sheet No..l.\.69.(.1..
s/ss csl/l4-1AE-IA
-"{"*:.":"il/*
I have verified all the i4ftnpation filled
3
srfrfiqg{dfii{dia
k
gilqraatii.=arr
wia'fr{diq.
gdEraat*t'tr
fWrraAznat+.
c
r6retEFItrr
m
h
€
IeV
amu
Ry
rrf,{rr rdldrdl6
N6
3ilffi:dc?Tr
9.954 v 1g-t2p^-t
4T x 10-7 Hm-a
ata{ihTf{diq'
R
x Lo-23J /t(
3.0 x 108m/sec
1.38
x1g-trY*z1rn-z
6.67
€o
x 10-3a/ sec
1.6 x 10-1ec
6.63
1.6 x 1o-1eJ
L.67 ;< 10-z7kg
G
lto
9.11x 10-31kg.
1.097
6.023
x
x L07m-7
LAz3moIe-7
8.3L4JK-lmole-L
USEFUL FU NDAMAENTAL CONSTAI\ITS
e
Mass of elecffon
Planck's constant
Charge of electron
k
Boltzmann constant
c
€o
Velocity of Light
1.6 x L0-1e;
L.67 x L0-27kg
6.67 x 1g-tt7i1*z1rn-z
Rydberg constant
Avogadro's number
9.954 719-t2p*-t
Fo
4fi x !a-7 Hm-t
R
Molar Gas constant
m
h
IeV
amu
G
&
Ne
9.11x 10-31kg
6.63x10-3*J sec
1.6 x 10-1eC
1,.38 x fi-23J /K
3.0
x!08m/sec
x1:}7m-t
6.A22 x !023mole-l
L.097
B.314JK-lmole-L
4
LIST OF THE ATOTTICWEIGHTS OF THE ELEMENTS
'
El.nlcnt
Symbol Atomic
Aluminium
Amcricium
Antimony
Argon
Arsrnic
Ast.tinc
Errium
Bcrkrllum
Be ryllium
Bismuth
Eoron
Brominc
Cadmium
Calcium
californium
carbon
cerium
cesium
chlorinc
Al
A rn
Sb
Ar
As
At
Ba
Bk
Be
Bi
B
Br
Cd
Ca
cf
c
ce
cs
cl
chromium cr
::n:,
curium ::
cm
oysprorium Dy
Einstrinium
Erbium
Europium
Fermium
Fluorinc
Francium
Gedotinium
Gallium
Gcrmrnium
Gotd
Hrfnium
Hctium
Hotmium
Hydrogen
tndium
todine
tridium
lron
Krypton
Lanthrnum
Lrwrencium
Lead
Lithium
Lutetium
Magncsium
Manganese
Es
Er
Eu
Fm
F
Fr
cd
Gr
Gc
Au
Hf
Ho
Ho
H
ln
I
lr
Fc
Kr
Lr
Lr
pb
Li
Lu
Mg
Mn
Mendelevium Md
'Brtcd on mils of Cir at
t3
95
gt
i8
33
85
56
9z
4
83'
S
35
48
20
98
6
58
55
17
24
Atomic Element
ii
26.9g
(211)
1Z1.tS
39.948
74.92
(2iO)
132.34
(2491
0.012
208.98
10.8.t
29.909
112.10
40.08
(2s1)
n.011
110.12
112.91
r:fl
Symbol Atomic
Molybdcnum Mo
Neodymlum Nd
lleon
Ne
Neptunium Np
ilickel
Ni
Nlobium
Nb
Nltrogon
N
Nobetium
no
osmium
os
Oxygen
O
p"ttiAirm
pd
phosphorur p
pfatinum
pt
plutonium
pu
poioniurn
po
potassium K
pra""oayrniurn pr
prorn"t iuln
pm
pa
,.Joo,","rn
:1gg n"l-iu_
Ra
Rn
',i
illl
r;;:
e6
ff
,::,1
66
,:-r:r: xil::il
il;il,n
Rb
99
68
63
1oo
9
g7
64
31
32
79
7A
2
67
t
49
53
7t
26
36
57
lO3
gZ
3
71
12
25
101
{2S.t} _-:'-"
Rurhentum
,iird
i51.96 samarium
{2s31 scand'um
ie.od solonium
tzzs,l sllicon
Sitvor
riz.zi Sodlum
69.22
?2.s9 strontium
196.97 sulfur
lZO.49 Tantalum
it.003 Technetium
164.93 Tellurium
t.oo80 Terblum
11a.82 Thallium
ii6.90 Thorium
192.2 Thutium
55.85 Tin
g3.80 Titanium
13g.91 Tungsten
(2S7) Uranlum
207.19 Vanrdium
6.939 Xenon
174.97 Ytterbtum
24.912 Yttrium
54.94 Zinc
(2561 Zirconium
Ru
Sm
sc
Se
si
Ag
t{a
sr
s
Ta
Tc
Te
Tb
Tl
Th
Tm
sn
Ti
W
U
V
Xo
yb
Y
Zn
Zr
42
60
10
93
2E
41
7
102
76
8
46
15
tB
94
84
t9
59
6t
sl
so
86
i:tt
44
62
21
34
14
q
11
38
t6
73
43
52
65
B,l
90
69
50
22
71
92
23
5.1
IO
39
30
40
Atomic
95.94
141.2a
20.18t
dt
{2311
v
S8.zt
1t
92.9i
(r
,anO,
(2531
(
tgo.z
15.9994
106.a
(
30.974
i9S.09
(
12121
(2rol
19.102
t40.91
(1a71
(2311
(2201
dzzr
lll.3l
2.
05..7
,toi.t
150.35
'l't.96
78.96
2E.09
t0t.E?0
22.9098
87.62
32.064
180.95
(ee I
127.!0
ras.g2
20a.37
232.0a
i68.9t
llE.69
42.90
l8l.85
218.03
50,9{
i31.30
173.0{
88.91
65.3?
91.22
. The ratio of these weights of those on lhe order chemical scale (in which oxygen of
naturll isotopic composition was assignod a mass of 16.0000...) ls 1.000050. (Values ir1 parentheses represent
the mosr
stabls known isotopes.) F
'12.000:..
L'
1.
3.
g-.
5
rmic
4.
!fl!!
Find the missing leffer:
0.59
5.9a
a.2a'
1.
183
r37l
1.71
1.9!
c07
53)
0.2
r94
6.a
t71
Lunch-dinner pattern of a person for m.
days is given below. He has a choice of a
VEG or a NON-VEG meal for his
lunch/dinner
(a) If he takes a NON-VEG lunch, he
will have only VEG for dinner
(b) He takes NON-VEG dinner for
exactly 9 days
(c) He takes VEG lunch for exactly 15
a
CN!
f,'K
GI
(d) He
r?l
0l
takes
meals
02
a total of 14 NON.VEG
What is z?
L 18
3. 20
rl
r)
3
1
2.
I
I
5
t
i
I
I
person sells two objects at Rs.1035/each. On the first object he suffers a lgss
of t0% while on the second he gains
l5%. What
loss/gain
2.24
4. 38
Two. locomotives are running towards
each other with speeds of 60 and 40
km/h. An object keeps on flying to and
fro from the front tip of one locomotive
to the front tip of the other with a speed
of 70 km/h. After 30 minutes, the two
locomotives collide and the object is
crushed. What distance did the object
is his net
percentage?
Ja'9
3.
"
6.
3.
50km
35 km
2.
4.
45 km
10
Yi"iik" ffiw
'4
< l%
loss
tbg(
V-o
4. no ross, no gain
WJ.:
A bank offers a scheme *nf,*'ffi,,
made for 1600 days are doubled in value,
the interest being compounded daily. The
interest accrued on a deposit of Rs.l000/over the first 400 days would be Rs.
cover before being crushed?
1.
3.
2.a
v.o
A
91
7'l
1l
w
1. L
3.N
days
09
s
1.
3.
km
2.
4.
250
148
183
190
A
sphere is made up of very thin
concentric shells of increasing radii
(leaving no gaps). The mass of an
arbiharily chosen shell is
1. equal to the mass of the preceding
2.
3.
4.
shell
proportional to its volume
proportional to its radius
proportional to its surface area
\
W
y9
7.
bit of an 8-bit binary
is zero. A binary number whose
The least significant
num.ber
value is 8 times the previous number has
12 bits ending with three zeros
I I bits ending with four zeros
1l bits ending with three zeros
12 bits ending with four zeroes
1.
2.
3.
4.
t%,"
v
,.#, v :fu
FF
6
B.
What is the next number
of the following
portion becomes
sequence?
2&&1,.9
l.
3.
9.
11.,8, 15,
13
t9
20% of students of a particular
jobs within one year of passing. 20%
of
the remaining students g"ijoU, 6y the end
of second year of passing. If 16 students
are still jobless, hovr many students had
"o*r[.,
l. €min
3. Z:6min
13.
passed the course?
1. 32
2.
4.
3. 25
10.
17.
what further time,
it will become R/2?
10...
2.
4.
t2
t7
f;. n
64
100
2.
4.
2 min
4 min
A ladder rests against a wallas shown. The
top and the bottom efrs. of the ladder are _
marked A and B. The base B slipp. The
cenhal point C of the ladder falls along
18.
A rectangle of length d and breadth d/2 is
revolvcd once completely around its
length and once around iti breadth. The
ratio of volurnes stvept in the two cases is
1. l:i
3. l:3
It.
2.
4.
I:2
l:4
1.
2.
-3.
4.
Avcragc.5'ield of a product in different
years is shoivn in the histogram. If the
vertical bars indicate variability during
thc ycar,'then <iuring which year was the
percent variability over the average of
that year the least?
14.
?
1.2n2.n
3. t
(250r
300
751
?50
(1s0r
';og
150
5or
(10or
100
sot
15.
4.
20
n2+n
Continue the sequence
3J-4Lry&,4t,-,-,-
50
12.
Bfurcmial theorem in algebra sives
= do* a6* a2x2t.....+on{,rih.r,
do, o1,.,..., an ate constants depending on
n. What is the sum ao * q + az+....1 a,
400
l.
19.
(l +rf
150
3.
apambola
of a circle
a shaight line
a hlperbola
the arc
20a0
2002
l.
3.
2.
4.
2001
2003
A long ribbon is wound around a spool
up to a radius R. Holding the tip of the
ribbon, a boy runs a\4ay frorn the spool
with a constant speed maintaining the
unwound portion of the ribbon horizontal.
In 4 minutes, the radius of the wound
16.
2.
4.
59,77,100
43,47,53
64,91, 100
55,99, 113
A
code consists of at most two identical
letters followed by at most four identical
digits. The code must have at least one
letter and one digit. How many distinct
9odo.* be generated using letters A to
Zanddigits I to 9?
l.
3.
2.
4.
936
t872
4
I
1148
2574
::
i;
.t
;t
t
t
,.r\
ry
,71
.&
7
,/
17. Tun solid iron spheres are heated to tg..fA"S-bondisformedviatheoverlapof
100.C and then allowed to cool. One has -_y'a?-/ *d d:,f orbitats
-2 doand d*rorbitals
the size of a footbatl; the other has the
3' 9-t *9 {vorpitals
size of a pea Which sphere will attain the
4' dt and d*'orbitals
room temperature (constant) first?
1. ThebiggersPhere
2. the smaller sphere
n. Among F-, Nat, 02- and Mg2*ions, those
3. Both spheres will take the same
having the highest and the lowest ionic
time
radii respectively are
room
temperature
the
on
depend
will
It
4.
1. O2- and Na*
.
fl€t
The
tare_
18.
The
weights (in'kg)
below:
of
13 persons are
given -L l;*}fi;;
4.
Mg2*and 02-
70,72,74,76,78, 80, 82,84,86, 88, 90,
92,94
24. The extent of n-electron
conjugation in
(a) heme" (b)
macrocyclic rings of
kg
coenzyme Brz and (c) chlorophyll
average
follows the order
by
2. (a) > (b) > (c)
(c) > (b)
2. I ke
-{<^l>
3. (c) > (a) > (b) 4' (b) * (a) > (c)
4. 1.8 kg
Two new persons having weights 100
and 79 kg join the group. The
weight orirr. group iricreases
l. 0 ke
3. 1.6 kg
19.
s
I
n
if
n is a positive integer, then
n(n+t)Q*2)(n+3)(n+4){n+5)(n+6)
is divisible by
3 butnotT
3 and7
Tbutnot3
neither 3 nor 7
l.
2.
3.
4.
20. The area (in rn1 of a triangular park of
dimensions 50 m, 120 m and 130 m is
3250
7800
2.
4.
l. 3000
3. 55s0
25.
.
-
27.
SbFs and two
<*''
'Zt4ereactionbetween
equivalents of HF leads to the formation of
HrSbFr + ZFz
HSbFz+3Fz
5bS9
electrolyte) an applied potential more than
+0.4 V, results mainly in the fonnation of
{ L}(T
2.
4.
Hgtt
Oz
The correct order of the isomeric shift in
Mdssbauer spectra (57Fe source) of iron
compounds is
Fe(II) > Fe(III) > Fe(IV)
Fe(IIf > Fe(II) > Fe(IV)
Fe(IV) > Fe(IIf > Fe(II)
l.
2
3.
4.
3. SbF3+ll2+2F2
,-t 4. tsbF6l- [HzF]*
'
l. Ag* t K* > Na*> Li*
2 K+ > Na*> AB* > Li*
3. Li* > Na*> K* t Ag*
4. Li* > Na*t Agn" K*
r. ngt
3 Clz
--1
2
a
26. In a polarographic measurement, (aqueous
KCl solution used as supPorting
PART '81
1.
The correct order of the retention of cations
on sulfonated cation exchange resin
column is
Fe(IV) > Fe(iI) > Fe(III)
f-c
f
lo
?
g
+
hapticities 'x'and 'y' of the arene
ruietics in the diamagnetic complex [(rf-
28. Thc
3.
4.
T-shaped [Rh(HXPPhr)Cl]*
Trigc'nal-planar [Rh(HXPPh3)2]
.E
CdI5)Ru( y'-CeHo)l respectively are
2. 4and4
4. 6 and2
1. 6rtd6
*y'+*s
?L
In the
35.
tPtcLI2- + Noz-
Thc rate of the resction
Ni(coL
+ Fphr
3 ryi1co)3ephil +
3.
4.
1. conccntration of both the ieactants
2 conccntration of Ni(CO)a only
3. concentration of PPh3 only
4. the steric bulk of PPhr
ofpropene,
CO and Hz in the presence of Coz(CO)s
as a catalyst is
butanoic acid
oou oo$
1
,",{ \'i'
tlv
31. The S and I values for r\I atom
?\-/ /
are
tAandl
l.
3. 1 and 0
respcctively,
d'/
3t2 ando
are
33.
34.
l.
Da6 and D36
Dqn and Dlrr
2.
-(
D36 and Da6
D3l and
Da6
Co(CO)rz adopts the
1. closo - structure
-Unido - structure
3. arachno - structure
4. hypho - structure
41.
8.
l.
*-r3.
B
C
l.
39.
ot
2.
4.
The configurations of carbon atoms C3
3.
Trigonal-planar [Rh(PPh3)2Cl]2*
aqid-
l. 2,3 and3,3
,y 3,3 and2,3
3. 3,3 and,2,2
4. 2,4 and3,2
in D-ribose, respectively, are
Rand S
S and R
RandR
SandS
and C4
T -shaped [Rh(PPhr)zCl]
histitline amino
of
catalyst results in'(neglecting solvent in
coo;$ination sphere of Rh)
2
of
nitrogen atoms coordinated to-bimetillic'
active site
oxyhemocyanin and
oxyhemerythrin, respectively. are
38.
Reductive elimination steg jn
hydrogenation of alkenes by pilkinson
1,./
cis-[PtCl2(N Oz)212-
37. IdentiS correct statements fbr mercury as
an environrnent pollutant.
.w
A. Carbanionic biomethylation
converts it to MeHg+
Thiol group of cystiine has shong
affinity for mercury
C. Mercury containing industrial
catalyst release caused Minamata
disaster
The correct answer is
A and
Aand C
B and
A,.B and C
t$ly
\
fU"point group symmetries for trans[Cr(en)2F2]*and[Ticlol3-,respectively,
3.
L
* ,)A
2. %and} "J"*"
4.
-+ e I3 s
rrans-[PtClz(No)O{Hr)]cis-[PtCl2(NOt(NH3)1frans-[PtClz(NH:)z]
The number
36.
30. The product ofthe reaction
l.
2 butanal 7
3. 2-butanone
4{}.
compound B is
l.
2
CO
depcrds on
-"t
following reaction
\-2.
4.
oh
The compound that
.rn
antiarornatic is
fi
Upo
ilt
bo":
*@
-ru.
*t\1
'
5\o.
q
tv
t7
41
v'-
ftofu \
o
2,
4.
1. I
3. III
IV
M*#,1
of the
The increasing order of pKa values
circled hydrogens in the following
compounds is
o
Me
40.
@*\
@*'"*
oA*j
BFi l*
I
H2N-"\NH2
Me
I
I<II<III
1.
c
41.
I
N<I<III
J.
d:
d
uAHl >fu_-+.t
>t,,-'L
t're
II
+@
4*,u,
3. 3R,6R
-
eFi ile
2.
4.
%2%
T<III<II
II<III<I
&)*.&
3.
4.
O
tv
45.
The product for the following sequence
of reactions is
o
1, BTCHTOMe/P(OE03/DME
2. NaH/DMF
3. H3O+
42. In the most stable conformation of
of the three substituents on the
1.
reaction is
a
4.
cH20H
a
O
45.
CHTOMC
0
cHo
2
chiral
43. The absolute configurations of the
centres of starting ketone in the following
HO
(,
cyclohexane ring are
OH: equatorial; iPr: equatorial and
Me: equatorial
OH: o<ial; i-Pr: equatorial and Me:
equatorial
OH: equatorial; i-Pr: equatorial and
Me: axial
OH: equatorial; i-Pr: axial and Me:
equatorial
,,
t-lJ
neomenthol, stereochemical orientation
4.
35,6R
lll
1. I>II>III>IV
2 IV>I>II>III
3: III>II>I>IV
4. IV>III>II>I
3.
35,6L
4.
The reaction of I -bromo-2-fluorobenzene
with furan in the Presence of one
equivalent of Mg gives
44
The decreasing order of basicity of the
following comPounds is
o5
2.
a
The major Product formed inthe
following reaction is
?cH2ocH3
/\
\
HsC- -)
1' soc-BuLi
2.coz >
H3o+
3'
-
n{o
) hlo
f e.-
F
F
F
F:
I&
E
10
t.
OCH2OCH3
2.
F
*
€
OCH2OCH3
I
?
J.
4.
,.,.A"*,. ,..4
c,ooH
4''"':D
9CH2OCH3
,..dtt"
47.
ocH2ocHs
+ compound with molecular formula
Cd{ooz
shows band at 1770 cm-t in in
spectrum.and peaks at l7g,6g,'29, and
22
ppm in t3C NMR ,prrtrrrn.-Th, correct
structure of the compound is
3.
cooH
0'*^^
48.
51.
cooH
h^^
,,,
photochemical reaction is(are)
53.
it
ia
s
s
l.
2
3.
4.
o
n
s
e
F
,i;
!,l
:i
i:
;'
L--o
4 4Yo'
o
Fra-____-- Fz.
*
CO
w7)
2.
4.
t25.4
2t0.2
l:4:6:4:l
1:3:3:l
l:6:15:20:15:6:l
l:3:6:7:6:3:I
The biosynthetic precursor of abietic
acid
ls
"rwe Vapour phase
$r:
h
i.ii
The ratio ofthe relative intensities of
the
carbon signals in the first orderr3C NMR
spectrum of CD:CI is
l.
2
3.
4.
The cyclic product(s) of the following
s
2. 01
-------+
l. t4t.2
3. 4s.0
52.
49.
-O
l=>o
1M*,ZZZ1
Br2 (excess), cHct3, d
t.*@r,'
*
H
The mass of metastable ion produced
due
to decornposition of F1+ in the followin!
mass fragmentation sequence is
reaction is
V-s',-
.f
/-o
Diethylphthalate
The major product of the ftfilowing
a)^
i./
€..
*s:
'50.
l.
3.
only2,6dimethylcyclohexanol
a:.
itli
The major product of the following
reaction is
L
s
onlycis-1,2_dimethylcyclopentane
only trans-I,2-dimethylcyclopentane
a mixture of cis- andirais-L,Zdimethylcyclop entanes
c
shikimic acid
mevalonic acid
chorismic acid
cinnamic acid
r*l$\3*
,+-
nt' -D
xla
s
&4
I
t,n
-. llg
g9
g
*s
E
11
€
54.
:ane
The amino acid constituents of artificial
58,
sweetener given below are
..cooH
lH
nrN\N
anula
in IR
rd 22
lrrect
"- cooMe
\pn
Speed
l.
D-Glutamic acid and LI phenylglycine
L-Glutamic acid and Lphenylalanine
L-Aspartic acid and L-phenylalanine
L-Aspartic acid and L-tyrosine
Identify the speed distribution functions
of Ne, Ar, and Kr with the curves in the
figure above
Ne-A, Ar-8, Kr-C
Ne-B, Ar-C, Kr-A
Ne-C, Ar-8, Kr-A
Ne-C, Ar:A, Kr-B
2.
l.
2.
3.
4.
'.31
4.
55.
IC
]
t
)o
Bond lengths of homonuclear diatomic
molecules can be determined with the
help of both
L rotational and vibrational
2.
3.
4.
59.
spectroscopy.
rotational and rotational Raman
spectroscopy.
rotational Raman and electronic
spectroscopy.
vibrational and electronic
spectroscopy.
Sna+(aq)
Snz+ (aq)
momentum along the molecular axis of a
nonzero,
spectrurn
the
is
will show
I
57. For a particle of mass n confined in a box
of length L, assume Lx -- L. Assume
further that Ap(m tn) = (p'lt/r. Use the
uncertainty principle to obtain an estimate
of the energy of the particle. The value will
be
.{ n2 /(BmLz)
3. h2 /(32mLz)
A,A %L
2.
4.
/(BmLz)
h2 /(ZmLz)
h2
2e + Snz+(aq), Eo = *0.15 V
2e -+ Sn(s), Eo = -0.14 V
l.
3.
rotational-vibrational
l. PandRbranchesonly.
2. P and Q branches only.
3. Q and R branches only.'
4. all the P, Q and R branches.
*
*
When Rf /F is given u25.7 mV,logarithm
of the equilibrium constant (ln K) is
obtained as
22.6
226
2.26
2.26x10-L
56. If the component of the orbital angular
heteronuclear diatomic molecule
For the cell reaction,
Sn(s) * Sna+(aq) + z Snz*(aq),
separate electrode reactions could bc wriftcn
with the respective standard eletode
potential data at 25"C as
60.
2.
4.
Hydrogen is adsorbed on many metal
surfaces by dissociation (S represents a
surface site):
I
H2
+__ $
-
HH
ttl
$-q--
-
s-
If the pfessure of H2 @) is small, the fraction
of the surface covered by hydrogen is
proportional to
p
1.
3. pt/?
2.
p2
4.
p'1,
:T 't4
61.
a
(enJ,
62. Theexactdifferential df of astate
66.
.
63. The angular
U=
-ih*
momentum
l.
3.
operator
has eigenfunctions of the
form expliAt].
(tl=#'u)
4 !d*-7ao
yytr
3. ydx - xdy
The condition that
67.
a
full rotation leaves such an eigenfuction
unchanged is satisfied for all the values
ofA
r. o,t
i, tf,,+t,t:,...
2. 0, t 1, +2, +3, ...
3. o,t;,+L,+:,...
.(4.
Wavelength (,lin nm) of the Lyman
for an one-electron ion is in the
range 24<1<30. The ionization
energy of the ion will be closest to
series
2. dx -zrdl
xdy
Tt
3.
function/(a y), amongthe following, is
l.
f-T-srt
for the first reaction and E6 is the activation
energy for the second ieaction, the
activation energy .of the overall reaction
will be given by
l. E'o
2. Eo* LH
Eo+ aH
4. Eo+zLH
2 -(#),
3 (#),
z-
in which first step remains essentially in
equilibrium. If AH is the enthalpy change
For a process in a closed system,
temperature is equal to
, (H,
, JH\
2.
4.
32 eV
52 eV
42eV
62 eY
A sample experiment revealed that PVC
formed in the medium has (Mn) = 13,
and (M*) = L6, where (Mn) stands for
the number average molar mass and
(M*) for the weight average molar mass.
The variance of Mn will then be
r. 39
3.r
2.3
4. 87
For an
enzyme-substrate reaction,
4. o,;,:,:,...
between
i *d fr
X-ray diffraction does not give any
structural information for
metallic solids
ionic solids
3. molecular sotids
amorphous solids
Z. l1-a Lmol-ls-l
3. 1gz 1^o1-tr-t
4. 19+ 1^o1-tt-t
68.
a plot
fields a slope of 40 s.
the enzyme concenfiation is 2.5 pM, then
the catalytic efficiency of the enzyme is
l. 40 Lmol-Ls-L
l.
2.
4.
65. AreactionA+ B * C + Dfollowsthe
mechanism
A+B+AB
AB*C+D
d({.
\s.t
Fnq
$9
ts
,C,)
If
69.
For a polydispersed macromolecular
colloid, osmometry gives
weight- average molecular weight
number- average molecularweight
both weight- average and number
average molecular weights
viscosity-average'molecular weight
l.
2.
3.
4.
*K
at8$""b)
$h'
13
l.
l0 ml of 0.02 M NaOH is added to l0 ml
of 0.02 M acetic acid (pKo = 4.75). The
pH of the solution will be closestto
70.
r. 7.0
2.
4.
3. 5.6
Sigmoidal and pH dependart
hyperbolic and pH independent
Hyperbolic and pH independen!
sigmoidal and pH dependent
Sigmoidal and pH independenq
hyperbolic and pH dependent
Hyperbolic dnd pH dependent
sigmoidal atrd pH independent
2.
8.4
9.6
3.
4.
Which of the following will result in
deviation from Beer's law:
A. Change in refractivp index of mediurn,
B. Dissociation of analyte on dilution,
C. Polychromatic light
D. Path length of cuvette
71.
Match the metalloproteins in column A
with their function in column B
76.
Column
I.
anhydrase
Plso
(f) oxygentransport
The correct answer is
I - (0 ; tl - (c]; ItI
:
75.
2.
1.54
4.
2.54
Tlre number of stereoisomers of.trans'
[CoCl2(triethylenetetramine)]Br is
V
2.
4.
rhree
Two
Four
Under physiological condition, oxygen is
binding
(d) oxidation of alkene
(e) oxygen storage
,,-{
$2
3.
f 4.
The geometric cross-section (in-barn) of
1.4 x 10-rt m
a nucleus A:l25,ro
approximately is
One
Q
peptidase A
l.
2
3.
4.
,.?.
to HzCOt
IV.Carboxy-
AES) is
argon
carbon dioxide
nitrous oxide
hydrogen
VJ/
ierminal pePide bond
(b) methylation
Ill.Cytochrome (c) conversion of COz
The gas commonly used in generating
plasma in Inductively Coupled PlasmaAtomic Emission Specfioscopy (ICP-
l. 1.05
3. 2.05
Column B
Oxyhemocyanin (a) hydmlysis of C-
t
II. Carbonic c
l. A,BandC
2. B,CandD
3. A,CandD
4. A,BandD
73.
A
tg
deoxyhemoglobin and
deoxymyoglobin, the binding curve and
its pH dependence, respedively,ary
77.
-
(d);
Iv-
(a)
I-(e) ; II-(c) ; Iil-(a);W-(0
I-(f); II-(b); Iil-(c);IV-(a)
I- (e) ; II-(d) ; Iil-(c);W-(a)
Na[(ry5-C5H)Fe(CO)2] reacts with Brz to
give A. Reaction of A with LiAFI4
results in B. The proton NMR spectrum
of B consists of two singlets of relative
intensity 5:1. Compounds A and B,
respectively, ff€
J
1q5-c5H5;Fe(co)2Br and
(rlt- ctgtFe(co)zH
2
(
ry4-Csutre(Co)28r2 and
(ry4-
3.
4.
crHtFe(co)2HBr
t
ry'.-'
"4,r::t-s,
rCto
18.
The compoundthat undergoes *tO*"Y
addition reaction in presence of Hu is
l.
2.
,-{
4.
79.
r-
yields a cyclic or polymeric product B.
The products A and B respectively, are
tMn(cQ)11Krlt-CrHr)Mo(Co)31-
r ")''<"" -)''+'+
ttrq(coxpphr)zl
[(ryt-CrHr)zR.eH]
lH NMR spectrum of free benzene shows
u p.uk at 7.2 ppm. The expected
chemical shift (in ppm) of Cotk ligand in
tH
NMR spectmm of (ry6-gu11l)Cr(Co)rl
and the reason for it, if any, is/ are
l.
2
4.5 ; disruption of ring current
9.0 ; inductive effect
4.
2.5; combination of inductive effect
and disruption of ring cunent
Ph2.
tfr
(Ph:sio).(r
=t,t
or
o
)
").,<0i.,(rn'.0
Ph-.- ,ro[
_-Si---oHand (ph2sio)o(n=3,4,oro )
Ph-
,t/
4. ::>''<,, and,>.,<)',<:
3.7.2
80.
-ao..
An aqueous solution of [Mn(HzO)o]2* ^r
complex is pale pink in coior. T'he ,.-S{.
According to Wade's rule, anion CzBqHrf
probable reasons for it
6A1, ground
presence of
t^'
are
i.
B.
disallowed
o"rri i""
state {
u;r*;
selection rule
preserice of2T2r.eiorld 5tate
charge transfer transition
The correct answer
A and
nand
C.
D.
51.
,.
adoPts
V
Stgso -
- structure
nido structure
tf,,rorr
t n{,"
is
84. The final product in the reaction of
2.
C
B
[Cp*zThIi] with CO in an equimolar ratio is
"{3. BandC
CandD
f4.
,
1.
cP*rrh-oa
81. The reaction of phosphorus trichloride
\crr:-rhcp*r
with phenyllithium in 1:3 molar ratio
yields product
,
'.A', which on further
treatment with methyl iodide produces
'B'. The reaction of B with'BuLi gives
product 'C'. The products A, B ani C,
2.
cp*2Th-s-
\)-:rtcp'1
respectively, &re
' "n"*-o\^ ^,/:^.
I3. F'nJl"Fl,$'ti;?*fi';lii"t
PhlP=cHz
pptrl,ipttpluteli,
4.
82.
tPPh4lcl,ipfrrp:cnzll,
The reaction
tPh;P(Bu)lLi 4'
betweendiphenyltlichloro-
silaneandwater
inl:Zmolarratiogives
\cH'-Q'-1trsor'
p
'-'\
"o.rrr(l
/"69
-*1ru51*"'Llt5;y(
l*qY'tt.]I::"
85.
spin-only magnetic moment and the'
diketonates. like dpmH 89. The
B
spectroscopic ground statc term symbol of
(dpmH : dipivaloylmethane) are used for
manganes€ J"ntr. in [MnFo]3- ion
the separation of lanthanides because
Hindered
complexes formed with dPmH can be
separated bY
1. Gel Permeation chroma8ograPhy
2 Gas chromatograPhY
3. Gel filtration chromatograPhY
r-4l
lon exchange chromatograPhY
is an
whereas
reaction,
overall second order
that of [Co(CN)6]3- is of first order' The
rates depend in both cases solely on the
concentiations of the cobalt complex'
86. Base hydrolysis of [CoCl(NH3)d2*
2
3.
4.
This maY be due to
A. presence of iorrizable proton in
[CoCl(t'{H3)5]2* but not in
91.
The spin-only (ps) and spinplus-orbital
ns of [CrCl6]3-are
(rs*r-) magned;
BM
5.20
and
3.87 BM
..t
2.84 BM and 5.20 BM
3.87 BM and 6.34 BM
2.84 BM and 6.34 BM
p
ico(cN)ul'
B. S*'.u mechanism in the case of
g7.
-Y't
88.
AandB
AandC
92. ComPlexes
AandD
2.
4.
BcHr
\.4 M=Mn, -7.5;' M':Cr,4'10
2 M : Cr, 4.10; M' = Mn, -7'5
3. M=V,-7.5; M'=Cr,4'10
4. M = Mn, 10.22; M'= Fe,2'80
93.
l2-Crown-4 binds withthe atkali metal
ions in the following order:
Li* >> Nat> r.> cf. It is due to the
,J/tightsize ofcation
change in entropy being positive
conformational flexibility of crown
BsHs
The main products of the reaction of
equimolar quantities of XeFo with
arg
XeoFl, NaF and NozF
XeOzFz, NaF, NOF and Fz
XeOF+ NaNOz and Fz
.-{
2
3.
4.
XeFa,
NNOz
NNOI
2.
3.
4.
I.h
ether
hYdroPhobicitY of crown ether
and FzO
t'lI -)
(o*
Sr
Tt,
fA
HM(CO)5 and
I 8-electron
[(ryt-CrHtM'(CO)3]2 obey ttre
iule. Identify M and M' and their 'H NMR
chemical shifts relative to TMS'
B onlY
to
A borane (X) is reacted with ammoniailB
;il;iloruotonYaride (Y)' The
Nft{n spectrum of Y consists of a triplet
and a quintet. The borane X is
BrHs
l. BzHt
3.
*ot
\)/
2
3.
4.
[CoCl(NH3)5]2* onlY
C. S*t.u mechanism in the case of
lCo(CN)el3- onlY
D. S*t., mechanism in both the complexes
Corrcct exPlanation(s) iVare
l.
2.
3.
4.
ten Co-O and ten Co-N bonds
fourteen Co-O and ten Ce-N bonds
twelve Co-O and ten Co-N bonds
7u{'
_
r,t,^r
a
,o'*'
|N-+rrr{+rl'
^
. $!hs't
t\hrr
l{
4d+d .
b^€und\nl
GEry,*
\
16
94.
The correct schematic molecular energy
diagram for SF6 molecule is
1.
-$\ (9;
^-&S''1
*i o '-fl
:1
f,'F
9r|
*
Qn.
F6
2.
95.
a'
Gel permeation chromatography can be
used to separate which of the following
A.
Lanthanides
B. Alkaline earths
C. Fatty acids
D. Low molecular
weight peptides
The correct answer is
2.
4.
l. AandB
.{cand D
96.
BandC
AandD
The major product formed in the following
reaction is
toot>^aoot
TrOH (cet)
2. BHS, THF
6tt
3.
1. Me2C(OMe)2,
3. H3O+
OsrO..,
1. q,
o
2.
\}
b
OH
3.
"\}
HOo*
4"p
HO
17
The major product fonned in the
transformation is
97.
following
100' The major product of the following.
reaction is
9o
Jn{
1.guzBOTf, r:PrzNEt
2' PhcHo
*ulY"Ph
oHo
:ilv
2
Yfi"/Y-Ph
1. HsO*,
*G{"
o
3.
-H
-H
Me
Me
'r.r{
_"'tr:
Ph
ni.r--zMu
, a$* , ab*
Ph
Me
Yi'"\"
Me
il-rrM"
OHOA
,rA4*-<.i
hv ,
2. NaOH
9HP
*'$ry{
,.
-
r.
Ph
ueu.,)-HH
ai} 4GC
it
-H
The product B in the following reaction
98.
101. The major product for the following reaition
sequence is
is
Br2 (1 equiv)
A
excess Me2NH_>
oil
hexane, rt.
l.
M?rNr..-,
t*FNMez
MezNa-^
2.
',,tNM€2
t-
l=rz\-NMez
Q
4.
NMe2
oPh
/
"'**".
o=P{-oPh
N-=
-XU",
HN-'
-t-O--t
99.
The major product of the following reaction is
l
'
rur"o^T
-ttz'I
rtr"olf\.
H-zN,
I
riY.\ ,,,Ao aeoW
cF3co2H >
o
.Y\
ol-')7t;\o
s/55 CSI/1+-1AE-?A
"'r*, ""o"V ( ,
3. Y"g*"\:-'l'r6f 4.
#-*n
and B in the following
reaction sequence are
Z\:-r \
ru"oA/J
rr,reo-)'o-'1
102. The products A
.-4
l.
".rioi
2. Meo'v
Meo"'
2.
(ococF3
',,,ro
0 -=
^ffi#'.'; '+#1*
C+"
18
Y
l.A
2,
o
ry
A:
o
l--(
\-/
B:
+
fr^N.ffi
o
0T
v
3.A
f-c{r
R.rctl6
o
T.
L
1C
PPlr!
B.
oo
q**.aod+ q-.",
:,
FOO$
Aril
o
f
4,A
\
@
F*
8:O
OH
103. The products A
and B in the following
reaction sequence are
rue3sl---\^1u't* aortaglaatral
\:.v,O
smt2 >
A THF,
EtO{
ue.fr_O-
/.,v,Cctr{l .
l.
3.
+'
G&lotl
I
/,r.@/.]',t
A-P, B-Q, C-R
A-P, B.R, C-Q
2.
4.
.
B: t*n)
k,
HrtOr
A-Q, B-R, C-P
A-Q, B-P, C-R
105. The products A
and B in the following
reaction sequence are
*--v-Y;,+ff:-^ k*I A:
''
*"4,r
I)
Q*"}-i
2.xo
'oH
8,o
,rHr,.)L*,
Up
",^u,.)L*n
oo,c>--\
(-) oo{
Sillca
A:
3 A:
B;
"{Ci'*
"tei''
MesSi
EocHll
J3''"
B
o \_1
\-/ "oa
2
-d Eqcl{--llco,Gi
H
,t
\-/
' o n"1},"n, t'n*T,*-B{
o
t,
I' srN'Y)
oy,rn,
fu"-
!_"n,^_.-\
O"" V,rn,
Silte!
4' A:
't
o=1-l^f
rz\-o
106. The major product of the following reaction
b".
104. The correct combinations of the reactions
and the reagents are
o
rtl"-.-A
[_j
r Q*n
2.
Br--r
cooEt
\-J
/-\
NC 'H
A
3. H2O, OH'
4.H*
s/55
CSU14-1AE-28
is
19
ot-
o
o
\,u"
'rK\_
l.
tnt-( X
2.
o
h
Et
.)
rN
p6s' 11,)-{'€t
)
*sN\--
CI+r
to.u"
G-1t.
6or,r.
A:
ET
o
\r"
3.
**,ffi--
*JA-_
2.
-N
iorr'lu
iorr,ro
A:
*t)
rsPh
.lv.J rN
rN
3.
*Jti--'-
A:
107. The major product of the following
ET
Coruu
.
rsft
IH
MsOOc
r\NCcN
/t. A:
.
tnt)
ffi>"
lll Nc cN
{
\"L,)--
rn
reaction is
\2
\__//
n+rsPh
\Z^-N
ryF'Et
\
o
//
Pns^N1o>-\_1
o
["vt'
Y
N
\
EIO2C
heat
I
109. The major product formed in the following
NMe2
reaction sequence is
,. MezN{rPctr
2.
NMe2
Mezl'l
J
3
1. ErCOCl, Et3N
2. LDA, THF,.78
OH
3.A
rd-aoMoM
\cj
CN
4. H3O'
5. CH2N2
""^sf*
ocoEt
A
IY
NC
NC
oc, TMSct
fi-y/-oMoM
tus^o
CNCN
)L(cH
a,)
\a-ouou
4. rvrezN{_r[
xooc-rAd
ro{
(-\J
,t.
r-OMOM
ueOOc-Acii
I
Me
Me
10B. The products A
and B in the
following
structures of A and B are, respectively,
reaction sequence are
"
^ / =N^sPt
/\Y\
V-nh"**
3q* '
t.TBAF.Mccil,5dc
o o
,r.Ao\t
110. In the following reaction sequence, the
"'lD
HGd
A
OH
-+
tl
/.t
io.
PPh3
imkJazole
12,
-+
AcN-
Y- '8,
Zn, Pd(dPP0Cl2 (cat)
Cul (cat)
20
l. A-P;B-R;C-P
2 A-R;B-Q;C-P
3. A-R;B-P;C-Q
4. A-Q;B-R;C-S.
/\
1. Boc-N\_J)-t
CN
.,-4\nf\-o'
*< \_J
3 *flo'
'r€I=CF"'
4. "*)ot
tr13. The following reaction gives a product
(racemic) which exhibits the following
NMR data:
rH
NMR: 62.67 (2H, s), 5.60 (2H, s)
pprn; r3c NMR: 6 lzo.3, l2g.o,lo5.o,
25.4 ppm.
The structure of the product (racemic) is
NC
Me
etooc.-Jo-,Br
111. In the following
reaction sequence, the
structure of the product is
aq. NaoH
------------'-
""Ao\
A
1. Hooc- -cooH
Me
I
1. DIEAL-H (1.1 equiv), ho(ane -28 oC
Me
2.
1{
2. CICH2COOH, diethyl azodicarboxytate
Me
PPh3
3. LiAtH4
**A*o,
3. Hooc- ',cooH n. Ho@- -cooH
\14. The reactive intermediate and the product
'Me
H
formed in the following reaction are
-OH
Me. /^-+-^
3.
l12.
t't"\--l/
H
.r'",rr-r/o-.--\.
Me
"'M"
Me
Me
-nru
4.
1. Free radical
2
The conect combination of the following
reactions and their p values is
Entry Reaction Entry
A
P
p
value
+ 2.01
ArO-+Etlin
a
- 0.99
EtOH
ArCO2Et + aq
NaOI{ in EIOH
R
ArNH2 +
PhCOClin
B
C
benzene
3.
4.
(n-Bu3sn)2
Y-l
O
BF3'OEt2, hv
and 4-iodomethyloxepan-2-
one
Free radical and 5-iodooxacan-2-one
Carbene and 3-oxabicyclo[S. 1.0]octane2-one
-
Carbene and (E)-5-iodopent-3-en- I -yl
acetate
,
115.
The major product formed in the following
reaction sequence is
1. 4-Methoxybenzaldehyde, H*
S
-2.69
+ 0.78
2. DIBAL-H, -
78 to - 40 oC
.14
zt
major product of the
reaction is
XlE. The
I
2 eueofS
1xo
following
Me
1.Zn,AcOH
*
2. PhSeNa
3. n'-CPBA, heat
tVte
ta\
\l//'..
itle
'
= 18 Hz),6.75 (1H, d,J:8
2' nuAoAo
Mu\
1. lrie*\gAO
116. An organic compound having molecular
formula CroHrzoz exhibits the following
spectral data:
Ii{: 34oo (br), l6oo cm-r.
'H NMR, 6 1.85 (3H, d, J = 6 Hz), 3.8
(3H, s), 5.0 (1H, s, DzO exchangeable),
6.0 (1H, dq, J= 18, 6 Hz),6.28 (1H, d,
\
f-\
n*fJ,-n
u rde'{sAc
o
o ur.--^-\Aor,,,
J
Hz),6'8 (1H,
n19. The major product of the following reaction is
J:
8 Hz) PPm;
s), 6.90 {1H, d,
'3cNhrlR, a 146.5, 144.0,131.0, 130.5,
123.0, 119.0, i14.0, 108.0,55.0, 18"0
ppm.
The structure of the eompound is
.z1,Cl'lO
V*"v
1.
Ci-l3NHCl-l2cooH, Et3N, DMI:
2.
leat
I
Ts
I
,r\*,\.Me
lt'l
;
1.
HONY
,r^\r-\
2. ^oP
OMe
lri
117. In the following reaction
l'l.lN-r\
sequence, the
N
I
vx
FOrpt'
.\-1,
ir
i'ule.
reagents X and Y are, resPectivelY,
. oH
x
,.s.-l
li Y)o
bo
,-_r'\^n-y'
HO.Y
o6trtu
4.
OMe
y
Ts
Forpt
ffi"oo',
o
1,
X = PhSOzH,8F3.OEI2 and Y = CHz=CH@OEI' BF3'OEI2
2.
X = 1. PhSH, PTSA; 2. rn-CPBA and Y = CHz=CHCOOEI, BF3'O€I2
3.
X = PhSOgH, BF3OEI2 and Y = LDA, CH2=CHCOOEI
4.
X = 1. PhSH. PTSA: 2. nTCPBA and Y = LDA, CHz=CHCOOEI
\
r:-V-i
lll
N"
,'\'-M"
ot
'lr--l
t{
,i'lr,.l ,t-C
OMe
ri:-"
-f
3.
il",'le.
ot"
4.
o(yi'
120. The major products ^A. and B formed in
tire following reaction sequence are
o
A
lll\,
1. MeMgBr, Et2O
'.LDA,rHF
Oet
2. |CH2CH2CH2C|
A
2. H3O*
22
o
The value of k1 will be
&:"
'^^&*, 8: ot*
o
2.
_4
A.
123. The low
hv/k
QYt
4.
l.
2.
3.
J.
r^o
d*
A:
lAlrn/k_
\\^'
B:
and high temperature
limits of
vibrational partition function are (0
"l-\\*
A:
- lAluz 4.
o
o
3.
k_
=
)
e-o/r
and,
f,e-en
,_0/zr utd
f,e-elzr
e-elzr {d lue-elT
,-0/2r
und 9 r-e1zr
T
oEr
124. The probability of finding the harmonic
oscillator in the energy level n = 1 is
121. For a gaseous reacrion, ZNO(g) * Cl2(g) -+
(neglect zero point energy and assume
Non-linear T. S. -+ 2N0Cl, the prehv = ksT)
exponential factor in the rate constant is .
proportional to
l.
3.
'
Ttlz
2. T-Llz
T-s(z
4.
T-712
122. Species A
undergoes a unimolecular
reaction as follows:
kr
A+A _
A*{rp
kr.
A++A
lAluz.
f
when pressure of
^4 is
2.
4.
L/2
[Hint:
For this reaction, the first order rate constant
at high pressure is k-. The first order rate
2.
4.
e2
e-21e
-
t'1
125. A particle in a l-dimentional box of length
Z is perturbed by a delta function potential,
6(x - L/2), in the middle of the box. The
first order energy correction to the ground
state will be
+l-/o
I
3.
k
constant becomes
l. e
3. L- e-2
2/L
I-I fU>X, - a)dx = f(a)l
126. The operators.Sl
are defined by
Sr=SrtfSy,
c^
gk
where S, and S, are components of the
spin angular momentum operator. The
g
commutator [Sr,S*] is
c.
o
6'
g
{o *"/'
ii
z.
4.
hs_
-h.s_
23
I27. A.quantum particle with fixed initial
energy Eo <V is allowed to strike the
following four baniers seprately. The
transmission probability is maximum in
1.
2.
{l]:
A
l3l.
At high pressure, the fugacity coefficient.
ofa real gas is greater than one, because
attractive term overweighs the repulsive
term
2. repulsive term overweighs the attractive
l.
ter.m
3. repulsive term is equal
to the attractive
term
4. the system is independent of both the
athactive and repulsive terms
;=l-llt'
128. Given
the following two relations,
xtdlq*
x2d.1tr=g
(A)
and
x$V1*
x2dV, =
g,
(B)
for a binary liquid mixture at constant
temperature and pressure, the true
statement is that,
both the relations'are correct.
1.
2. relation A is conec! but B is not.
3. relation B is correct, but A is not.
4. both the relations are incorrect,
except for very dilute solutions.
n29.
rlf
2.
3.
4.
.
2.
3.
4.
EPR spectrum
of a free radical
containing nuclei with nonzero nuclear
spin is obtained if &e following selcction
rules are observed:
1. Amr=0, A*r=0
2. Am, = +1, Amr = g
3. Am, = f1, Ams - +1
4. Am, = 0, Am; = +1
t
Do(H)
-
-
Do(Hl)
-
r(H) + r(H2)
= Do(H) + I(H) + I(Hz)
Do{iii) = Do(iiz) - i(f,) - i(iiz)
Do(Ht)
133. The character kble of C2, point group is
given below. In cls-butadiene molecule the
vibrational modes belonging
to
A2
ineducible representation are /R inactive.
The remaining IR active modes are
the bond length of a heteronuclear
diatomic molecule is greater in the upper
vibrational state, the gap between the
successive absorption lines of P-branch
f
increases nonJinearly
decreasesnonJinearly
increases linearly
decreases linearly
130.-
132. If Do(A) and /(l) refer respectively to
the dissociation energy and ionization
potential ofl (where I is either H, H2,or
I/2* species), the correct relation among
the following is
1. Do(H) = oo(Hi) + I(H) - I(Hz)
o
I
cru
E
Cz
4,,
I
I
B1
I
I
I
B"
I
-I -1
A"
-L
o!.
I
1
I
t
z,x2,y2,z
Rr, Xll
x,Ru,xz
Rr,lZ
'1 ,
1
I
l.
2
7AL+lBL+BB2
gAL+4BL+782
3.7A1+3P|-+782
\-A/ sh + 3h + BBz
134. Thc product o'v.S"+ (.Sf is the four fold
improper axis of rotation around the z axis,
and oxt is the reflection in the xy plane) is
2.
4.
ci.i.
cf
;{a"
24
135. A solid consisting of only X atoms has a
close-packed structure with X-X distance
of 160 pm. Assuming it to be a closedpacked sfiucture of hard spheres with
radius equal to half of the X-X bond
length, the number
would be
l.
3.
atoms
2.
4.
6.023 x t027
6.02 x t}2t
136. Fuel cells provide
of
clean
in
1cm3
3.45 x 1023
3.8 x 1021
3.
4.
function
co4rc(s)
*torfu)
-> 4co2(fi
l.
3.
'/
V
of
2.
4.
A
't'
1.
2
l4l.
?
2.
4.
1+krklo
. llsoc(l) 1s6a(1)l
ke[^A]o
rl4l,
L+ktlAlo
ttH;
tDro,tDro.tDro
are
T2
6
bondwave function of H2 molecule is
(Is oa, lsoB, ts6a, ls t g are atomic spinorbitals of hyilpgen atoms a and b of the
hydrogenmolecule)
r+kt[Ala
tDro,tDro
EosE <Er
A Slater determinant corresponding to
the ionic part ofthe ground state vilence
l1s"a(1) 1s6p(1)l
ltsoa(Z) Ls6Be)l
1+t
o<E<Eo
microstates that.
'"
138. The configuration [Ne]2p13p1 has a 3D
term. Its levels are
E<
of
144
possible, when two particles are distributed
in four states such that the resulting wave
functions are antisymmetric with respect to
lLsoc(L) lsop(1)l
ftsoa(Z) ts"Fe)l
polymerization (overall second order)
reaction is
a
J'
2.
4.
F>o
E>Er
,r'
r in any stepwise condensation
r.
- o)e-" yields an average
will satisfr
l.t6
3.8
137. The fraction of groups condensed at time
-€
tDo
exchange of the particles, is
sHzO(r)
1.
3.
(3
14!. The number
*
I-flhe change in the Gibbs free energy
this reaction is
2746.06 kf mol=l, involving 26
electrons, its open circuit voltage is
1.55
r.bq v
3.1s v
2.06V
N2
energy E, it
electical energy
If
'Dr,'D,tDr,
143.
132. For some one-electon system with I 0
=
1?' and m 0, the functions
N6e-d and
=
Nr(Z - o)s-ol'z refer respectively to the
ground (E.d and fir$t excited (Er)
energy levels. If a variational wave
to a variety' of applications including
automobiles and stationary power
sources. Normally hydrogen combines
with oxygen to give electrical energy and
water.
we use butane instead of
hydrogen at 1.0 bar and 29g K, the
following reaction <!ccurs:
3D3,3D2,3D1
lLs"u(2) 1s6c(z)l
llsoa(l) lsep(l)l
^" llsoa(l)
1s6p(z)l
142. When T + @,value of the single-particle
partition function will be (given: degcneracf
oflevelj:gr.)
l. I
3. \i
si
2. So
4. ll|,i
9i
tr
2_J
145. Among the fol lowing figures
143. Th9 rate constant for a reaction
Il n
/1++84++P
is measured in two different
iln rpj
W
aqueous
and
ionic strengfts 0.01
of
0:04 M. If ,logko-
solutions
t
$
l. 1
p
0.3, the charge n
on B is closest'to
2.2
4.6
:
3.3
the variations of mass adsorbed with
for a monolayer and a multilayer
are represented by
l. AandCrespectively
2 Aand B respectively
3. CandArespectively
4. BandArespectively
pressrue
electron charge on the cental carbon
atom inpropenyl cation (CHyCHCH)+
is (in units of electonic charge)
2. lrn
:
3. I
4.2
!
p
p
144. Accordingto Hiickel ft*ry, the n
1. L/2
I
Rough
\
\\ ts))"\s"L
.\
ors)r
:
t
Itfy
(cr\t'' \nt
\- o*\
\ itr"
\
E\/
N\
'o,i
-!f
.*"n
\
(o
n-4nfn
tt
i\t'Mlr' {:"?7*'^)t^
-\\
s/55CSVI4-|AE-3
,5 /l
rJ$v{r/
I\
]lri)lL,ot
4
n\
^$q
/l
v.r$"