1. No category

em -;f.
lSeries OSR I
56/1
Code No.
trtrwff
"lR ｾ＠
m
ｾＭＧＹＡｊ＠
ｾ＠
Cfl1 ｾＭ＠
fffij I
Candidates must write the Code on the
.title page of the answer-book.
ｾ＠
•
Wof-l15r ·.q ｾ＠
1mj I
•
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•
·•
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•
•
•
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3ffi ｾ＠
ｾ＠
ｾ＠
-a fcfi ｾ＠
15 ｾ＠
ｾ＠
'Tf'Q; q;)s
ｾ＠
ｾ＠
Wof-l15r <i1 ＠ｾ
＠ｾ
＠ｾ
-ij 10.15 ｾ＠
I
ﾷ＠ CfiT ｾ＠
ｾ
ｾ＠
ｾＭＳｒｏ､ｃｦｬ＠
ｾＭ＠
1:R
w-J-l15r .q 30 w-J ｾ＠ ·1
ｷＭｲ｣ｮｾ＠
R-1&'11 ｾＧ＠
ｾｃｦｩｬ＠
ｾ＠
•
•
Wof-l15r -ij ｾ＠
B fcfi ｾ＠
ｾ＠
ｾ＠
•
ｾ＠
Tf<rr ｾ＠ I
ｾ＠
15 flr-R Cf>T ｾ＠
(fCfi ｾ＠
ｾ＠ 10.30 ｾ＠
I 10.15 ｾ＠
ｾ＠
1
w.T-iBf 'CfiT ｾ＠
ｾ＠
Wo1-l15r
ｾ＠
Cfll $
I
ｾ＠
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ｾ＠
ｾ＠
ｾ＠ ｾＭＳｃｦｬｩＱＺｒ＠
＠ｾ 3lCifu ｾ＠ ｾ＠
15 printed pages.
Please check that this questio n paper ｣ｯｮｴ｡ｩｾ＠
Code numbe r given on the right hand side of the questio n paper should be
written on the title page of the answer-book by the candida te.
Please check that this questio n paper contain s 30 questio ns.
Please write down the Serial Numbe r of the questio n before
attemp ting it.
15 minute s time has been allotted to read this questio n paper. The questio n
paper will be distribu ted at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the
student s will read the questio n paper only and will not write any answer on
the answer- book during this period.
ｾＱＢ＠
fcl$11"1 Ｈｾ［Ｆｉｐ＿ｩｃｨＩ＠
CHEMISTRY (Theo ry)
ｾＳｩ｣Ｑ［ＺＷＰ
Maxim um Marks : 70
Time allowed : 3 hours
56/1
.:
ｾ＠
.
Ｎ＠
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.
.
Hl 41 r4 ｾＺ＠
(i)
'R'ft J1 R 3Tf.twf '! I
(ii)
J1RＭｾ＠
1
Y8
31ffr ey-3ff(tq Jf R t I >Ritrli Jf
R eli fffl{ 1 Jicli ｾ＠ I
(iii) JTR- mwr 9 Y18 (fCI
; ey_3ffftq Jf R '!
I >Ritrli Jf R eli fffl{ 2 Jic1i
'! I
(iv) ｊｔｒＭｾ＠
19 Y27 (fCI; iff ey-"3fftt
cl Jf R t I ｾ＠
Jf R eli fffl{ 3 Jicli '!
I
(vJ
w.:r-mwr 28 -8 30 (fCI; c{tF1-3ffftq
w.:r '! 1 >Ritrli w.:r eli fffl{ s Jicli '!
1
(vi)
3/lct?21i:f?dlj87< ffl7r ｾ＠
CfiT ｾ＠
q;( 1 ｾＨＧｪ＾ｈＲ＼ＱＢ＠
eli ｾ＠
cfit 31j1{frr Ｚｲｴｦｾ＠
I
(fCI;
Ge ne ra l In str uc tio ns :
(i)
Al l questions are compuls
ory.
(ii)
Questions nu mb er 1 to
8 are very short-answer
questions an d carry
1 ma rk each.
(ii i)
Questions nu mb er 9 to 18
are short-answer questions
an d carry 2 ma rk s
each.
(iv)
Questions nu mb er 19 to
27 are also sh or t-a ns
wer questions an d carry
3 ma rk s each.
(v)
Questions nu mb er 28 to 30
are long-answer questions
an d carry 5 ma rk s
each.
(vi)
Use Lo g Tables, if necessa
ry. Use of calculators is no
t allow
ｾｬｻＧｴｒ＼ｨ＠
ｾ＠
ｾ＠
mm ｾ＠
(ch em iso rp tio n) 'tR di4Sfl"'
Cf)T
>rmcr
W ha_t is th e eff ec t of tem
pe ra tu re on ch em iso rp tio
n?
W ha t is th e ro le of zin c
me tal in th e ex tra cti on of
sil ve r ?
/
3.
/
H3 P0 3 ｾ＠
ｾ＠
Ｈｾｲｵ｣ｴｩ､ｬＩ＠
W ha t is th e ba sic ity of H
5611
t?
fcoo;fi ｾ＠
3P0 3 ?
ed.
?
1
1
1
2
...
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1
1\/ \
Cl
Identify the chiral molecule in the follo*ing pair(
eM
/y
/
Cl
f&·
f.tl:;r 11 ｾ＠ ｾＭｭ＠
ｾＭｓＬ＠
ｔＱＺｳｾＭ］｣ｰｐｲｒｴｮ＠
ｾ＠
ｾＬ＠
ｾ＠ ?
1
PVC
Which of the following is a natural polymer ?
Buna-S, Proteins, PVC
ＢＵＱｾ＠
/
ｾｻＩｑ｣Ｚｮ＠
ｾ＠
ｾ＠
ｳｬｾＨｩＩｦＮｰｊ＠
11 qf{cHf"'
ｾ＠
Ｂ･ｮＩｾ＠
\ifRT \lfRfT
ｾ＿＠
1
The conversion of primary aromatic all_lines into diazonium salts is
known as - - - -
f'lll>l\1 i\> "R''-3l'!'R'I (hydrolysis) i\> "3i"lTi'; ii'IT ｾ＠
/
?
1
What are the products of hydrolysis of sucrose ?
ｰＭｩｬ＾＼ＱｾＴｦ＿ｳＤＦ＠
/
<lit W<r.n fuf@(
1
1
/ Write the structure ofp-methylb enzaldehyde.
Y
ｾ＠
ｾ＠
2·8 g cm-3
ｾ＠
ｾ＠
ｾ＠
qftc:nk1a
ｾ＠
cnr
ｾ＠
fcf;;rR cfiT ｾ＠
-mq ｾ＠
ｾ＠
eHicnR (f.c.c.) >fCfi"R
4 x 10-8 em ｾ＠
I ｾ＠
cnr
mq CfiT ｾ＠
ｾ＠
"ffi1
ｾｇｈ＠
1
lFIT ｾ＠
2
23
: NA = 6·022 x 10
ｾＭ
Ｑ
Ｉ＠
An element with density 2·8 g cm-3 forms a ｾ＠
cell with edge
8
length 4 xlo- em. Calculate the molar mass of the element.
56/1
3
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10.
LiCl ｾ＠
ＨｮｯＭｳｴｩ｣ｨｭ･ｲＩｾ＠
(i)
ｐｬｾｒＱｦ｀ｃ＠
ｾ＠
iTT
ｾ＠
ｾ＠
ｾ＠
ｾ＠
ｾ＠
CfiT 31-HH"ItftCfi{vlf'!d14
ｾ＠ ?
CfiT ＼ｾｴｦｃｩｻｶｬＧ､ＱＴ＠
ｾ＠
ｾ＠
ｾ｀Ｑ＼ＺＧ＠
ｾ＠
?
ｾ＠
ＳｩｬｒｉｾＨＱ＠
2
ｾ＠
(ii)
fsh'R(1 ｾ＠
(i)
What type of non-st oichio metric point defect is respon sible for the
pink colour of LiCl ?
(ii)
What type of stoichi ometri c defect is
ｾ＠
1IDfCfi ｾ＠
ｳｾ＠
NaCl ?
ｾＨＯ＠
OR
ｾＱ＠
ｾｃｲｹｳｴ｡ｬ＠
ｾ＠ ｾ＠
-en: ｾＨＱＴＢ＠
n
you disting uish betwee n the following pairs of terms :
and octahe dral voids
ｾ｡ｨ･､ｲｬ＠
(i)
·
2
ＳＱｔｴｦｾＺ＠
ｬｾＱＨ＠
(i)
ｾ＠
ＳｦｈｾｉＴＱ＠
NaCl ｾ＠
(ii)
ｾ＠
ｾ＠
lattice and unit cell
'lffi'R
<tt ｾＱＨｃｦｩ＠
ｱ［ｬＺ｛ｾ＠
ｾ＠
ｩmＡ＾ｬＧＱｻ､ｾ＠
ｾ＠
(Kohlr ausch )
ｾ＠
f.'t'll!
ｾ＠
I djif>{OI
State Kohlra usch 1rw of ｩｨ､ｾ･ｮｴ＠
migrat ion of ions. Why does the
conduc tivity of a solutio n decrea se with dilutio n ?
ｾ＠
12.
ｾ＠
＼ＱｾＴｒ｣ｴ＾＠
ｾＧ＠
mq:; ｾ＠
R
R@l41 TJ<ff ｾ＠
P ｾ＠
--7
ｾＧ＠
ｾ＠
(t) ｾ＠
I
-sWf ｾ＠
(R) ｾ＠
2
qft:C4d"l en)
2
i
(R)
ｴｾ＠
(i)
ｾ＠
(ii)
qsfi
ｾ＠
cfiT W
<tT ｾ＠
ＨｾＩ＠
Ｈｯｲ､･Ｉｾ＠
I
mrfT ?
ｾ＠
ｾＱ＠
I
..
･
4
ｾＭｬ＠
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L_
For a chemic al reactio n R
time (t) plot is given as
P, the variati on in the concen tration (R) vs.
ｾ＠
i
(R)
ｴｾ＠
Predic t the order of the reactio n.
What is the slope of the curve?
mg3U
ｾＮ［ＳＧＱｱｴｬ｣ｦ＠
ｾ＠
qf{&f){Of
ｾ･Ｎ＠
--r.t"'
ｾ＠
ｾｘ･ｆ
ｾＴＱｃｦ＾＼ｯｮ＠
ｾ＠
P4 ＫｈＲｯｾ＠
ｲｮｯＮ＼［Ｚｬｾ＠
ｾ＠
ｾＱＰＤＡＨ［＠
I ｾ＠
ｾ＠
2
ｾｲｩｮ｣ｰｬ･＠
ｾ＠
1::::7
Cf)T
of the metho d of electro lytic refinin g of metals . Give
ｾ＠
｣ｩｴｾ＠
2
:
Ｔ ＫＰＲｆｾ＠
Compl ete the following equati ons:
ｾ＠
I
I
(i)
P4 + H 20
(ii)
XeF4 + 0 2F2
cfiT ｾｻＢＶＱＰ＠
ｾ＠
ｾｘ･ｆ
2
:
Draw the structu res of the following :
XeF2
ｾｆｳ＠
ｾ＠
ｾ＠
ｾ＠
BrF3
(ii)
ｾ＠
Ｒ＠
ｾ＠
B ｾ＠
ｾＳｕ＠
ｾ＠
(i)
(ii)
ｾｗｩｬ｡ｭｳｯｮ＠
ｾＺ＠
2
ｾＭｩｴｬＺｈ＠
ｾｒＱＴｩ＼＠
ｾｱｵ｡ｴｩｯｮｳ＠
ｾ
ｾＴＩｃｦｻｏ＠
｟Ｎ ｒ･ｩｭｲＭ
ｾｴｓｊｏｉ＠
(synth esis)
involv ed in the following reactio ns :
Tiema nn reactio n
synthe sis
5
56/1
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l -
2
Write the mechanism of the following reaction :
ｾ＠
CH3 CH2 0H
ｾﾧ＾＼Ｂｬ＠
HBr
,g Jffil q;f.r iii ful(
(i)
ｾ＠ Chcll ｾｬ＠
(ii)
-R3fufR
ｾ＠
CH3CH2Br + H 20
l(<fi<"l<l>l
iii 'flll
ｾＺ＠
2
Write the name of monomers used for getting the following polymers:
ｾ｡ｫ･ｬｩｴ＠
ｾｎ･ｯｰｲｮ＠
Ｑｾ＠
Mg (s) + Cu2+ ＨｾＩ＠
ｾ＠
ｾ＠
ｾｲｇ
WIT 1lCJT ｾ＠
Ｐ＠
ＴｾｩＺｨｦ｣ｴ､＠
: E
ｾ＠
ｾ＠
0
Mg-2+ ＨｾＩ＠
+ Cu (s)
I
m, = + 2·71 V, 1 F
= 96500 C ｾ＠
-l
3
ｾｬ｣ｵ｡ｴ･＠
ｾｲｇ
/
k
Ｐ＠
for the reaction
Mg (s) + Cu2+ (aq) ｾ＠
'"'\.
Mg2+ (aq) + Cu (s)
\"\...
_,.
ｾＢＧ＠
;ven: E'ceu = + 2·71 V, 1 F = 96500 C mo!-1
Y ｾ＠
ｾ＠
&.-
-//arne the type of cell which was used in Apollo space programme
providing electrical power.
( .
'
56/1
6
ｾ＠
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rｾ＠
'?( \ -,.
f ,
.
ｾｲ･ｰ＠
ｾ｢＠
..
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ｾ＠
3l1«<H 3l<W'!I
ｾ＾ＱＺ＠
it so2cJ2 ｩｦ＼ｾ＠
if< $A
ｦＮｬｱｾｵＡＢ＠
,
802Cl2 ＨｾＩ＠
ｾ＠
802 ＨｾＩ＠
)l$r
ｾ＠
-..i\R: ｩｦ＼ｾ＠
ｾＯｳＭＱ＠
Ｈｾ＠
11m ｾ＠
ｾＯｱｩｊＺｉｏ＠
1
0
0·4
2
100
0·7
qf{q:;Ria ｾ＠
ｒｴｾｯｩ｣ｮ＠
+ Cl2 ＨｾＩ＠
1
3
= 0·6021,
: log 4
log 2
= 0·3010)
The following data were obtained during the
decomposition of 80 2 Cl2 ｡ｾｴ＠
volume :
80 2 Cl2 (g)
ｾｴ＠
..
Experiment
Time/s-1
Total pressure/atm
1
0
0·4
2
100
0·7
r"- . ._
ｇ
.
'I'll
ｾｉ＠
1ili\
ｾ＠
?
ｾ＠ ｾ＠
"li'I>R 'I'll
ｾ＠ ? ＠ｾ
--ｾ ｙ＠
(J ' 't<)'
'1
6'
I
----
Calculate the rate constant.
(Given: log 4 = 0·6021, log 2 =0·3010)
ｾｈｉ＠
＼ＭＨ＠
_;:::..--o.-
{ (IP"). "'.,.' ｾ＠
80 2 (g) + Cl2 (g)
ｾ＠
uｾ
order thermal
"li'!>R '1>1 11,'6
c.. . -,
ＮＬＳｾＢＧＱＡＺ［ｲＨｏｉ＠
3
What are emulsions ? What are their different types ? Give one example
of each type.
ｾ＠
22.
Rklkifula ｾ＠
(i)
56/1
CJ;RUT ｾ＠
CCH3)3 P = 0
:
W-qro ｾ＠
3
ｾ＠ ｾ＠
CCH3)3 N = 0 -;fflf ｾ＠
I
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Give reasons for the following :
ｾｃｈ
Ｓ Ｉ｡＠
P = 0 exists but (CH 3) 3 N = 0 does not.
(ii_V- Oxygen has less electron gain enthalpy with negative sign than
ｾ＠
ｾｬｰｨｵｲＮ＠
$1)
23.
H 3 P0 2 is a stronger reducing agent than H 3P0 3 .
(i)
ｾ＠
(ii)
Ｓ
Ｓ ｝ Ｋｾ＠
｛ｃｯＨ･ｮＩ
>fcfiR ｾ＠
fll0Jiq4c.C11 ｾ｀ｲ､ｩ＠
ｾ＠ ?
(en= ｾＭＱＬＲｳｲｑＺｴｬｯＩ＠
(iii)
[NiClJ
ｾ＠
2
-
ｾ＠
Ｓｩｪｾｫｬ｣Ｔ＠
ｾ＠
ｾ＠ ｾ＠
[Ni(CO)J ｓｬｦｩｾｫ｣ＱＴ＠
ｾ＠
ｾ＠
?
Cr = 24, Co = 27 Ni = 28)
5filnCf; :
3
Write the IUPAC name of the complex [Cr(NH 3) 4 Cl2]Cl.
(i)
r what type of isomerism is exhibited by the complex [Co(en):J 3+ ?
/
en= ethane-1,2-diamine)
ｾ＠
24.
Why is [NiCl4]2- paramagnetic but [Ni(C0) 4] is diamagnetic?
(At. nos.: Cr = 24, Co= 27, Ni =28
-------
(a)
HR -ij B ｾ＠
ｾ＠
(i)
CH2 0H
(ii)
(b)
f.:r8 ｾ＠
o-
o-
ｾ＠
ｾ＠
ｾ｣ｴｬ｜ｦ［＠
ｾ＠
ｾｻＧｩＺｦＢｬ＠
ｾ＠
:
PCl5
CH2 - CH = CH2 + HBr
-q -B cnt.1-m
ｾ＠
ｾ｣ｴＧｬ｜ｦ［＠
ｾ＠
Ｍｾ＠
sN2 ｾ＠
-q
ｾ＠
<fuRrr -B
ｾＺ＠
56/1
ＳＱｾ＠
(i)
CH3 Br
(ii)
(CH3 ) 3 C- Cl
Ｓｩｾ＠
CH3 1
CH3 - Cl
3
8
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ｾ｡ｷ＠
the ｾｵ｣ｴｲ･ｳ＠
of
following reacti ons :
ｾｃｈ
/ oｾｩ｣ｨ＠
ｭ｡ｾｯｲ＠
ｰｾＺｯ､ｵ｣
monohal_q
ｴ ｳ＠
PCl5
Ｒ Ｐｈ＠
Ｍｾ＠
CH2 -CH= CH2 +HBr
CH 3Br or CH 3I
- ｩＭｔｲｾＱＮＺ］＠
ｾ＠
q:;roJT ｾ＠
ｾｊｬＴ｣ｴ＾＠
(i)
ｭ｡ｾ＠
ｾ＠
•
Y..'
ｾ｜Ｎ＠
\_, 0"'
/ (c H3) 3 C- Cl or CH 3 - Cl
.•
:
3
(R3 N) cfil ﾥａｔｾ＠
ｭｾ＠
ｾ＠
Ｈｒｾｎｈ
Ｒ Ｉ＠ ｾ＠ ｾ＠
ｾ＠
1
ｾｒ｣ｩｬＢ＠
(ii)
(iii)
ｲ ｦ｡ｾｴＧｶＭ
halog en compo und in each of the following pairs :will
faster in SN2 reacti on :
ｾ＠ .
f
25.
in each of the
ｾ＠
ｾ＠
- ｓｦＩｬｾ＠
fCH.14"i ｾ＠
ｾ＠
ｾ＠
ｾ＠
(CH3) 3N cfil ¥AT ｾ＠
I
(CH3) 2NH ｾ＠
ｾ＠
ｾ＠
ｾ＠
I
Ｓｻｾ＠
f.:ll:;r ｾＳｦｴ＠
A, B
3fu: C cfil ｂ＼ＧｃｉＢｩｬｾ＠
Sn+H Cl
ｾＺ＠
NaN0 2+HC l
A
273K
NH3
,----
c
B
Br2+ KOH
3
c
Accou nt for the following :
(i)
Prima ry amine s (R-NH 2) have highe r l]_oiling_point t.han tertia
ry
amine s CRaN).
,.--
(ii)
Anilin e does not under go Fried el - Crafts reacti on.
(iii)
(CH 3) 2 NH is more basic than (CH ) N in an aqueo us solution.
3 3
ｾＭ
ｾＭｲｵｴ＠
56/1
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Give the str uct ure s of A, B and C
in the following rea ctio ns :
(i
/
ｾ＠
Sn +H Cl
C6 H 5 N0 2
ｾ＠
H2 0/H +
H 3CN
Na N02 +H Cl
27 3K
A
NH3
ｾ＠
A
c
B
Br , + KO H
B
c
ｾＸｱ｣ｦｩｴＺ＠
y
ｱｴＨｾＺｬＤ＠
3
ｾ＠
＾ｉｔｾ＠
(ii)
..;...-
ｾ＠
fclt<flCfl\01
De fin e the following ter ms as rel
ate d to pro tein s :
Pep tid e lin kag e
ｾ＠
rim ary str uct ure
De nat ura tio n
ｾ＠
27.
ｾ＠
ｾ＠
ｦ｣ｩｾｈＱ＠
fco
ｾ＠
ｾ＠
l:f<,
"if. ｾＨＱＴ＠
ｾＭ＠
｣ｦ＾ｬＶｩｾｉｃ＠
ｾ＠
ｾ､ＴＱＨ＠
ｾ＠
1:fffi ｾ＠
11Tcr -ij ｾ＠
ｾ＠
ｾＢｃｦｬ＼＠
ｾ＠
-ij
3lR ｾ＠
CfiRUf ｦ｣｢ｾｬＭＱ＠
ｾｃｦｩｬ＿Ｎﾣ＠
ｾ＠
ｾＢｗｉｔ＠
-ij ｾ＠
ｾ＠
CflT ｾ＠
Cf;T
ｾｇＡｩｦ＠
ｾ＠
Gffif
I NH RC ｾ＠
ｾ＠ 614a 1 ｾ＠
cfiT
ｾ＠
CfiT ｾ＠
ｾ＠
dfCfll("' ｾ＠
l:f< mCfiR ｾ＠
ｾ＠
1
ｾ＠
ｾ＠
3ltt \Trof ｾ＠
ｾＳｩｦｴｬ､ＨＱ＠
UWf
fWn cfiT
ｾ＠
ll'fql -ij ｭｯ｣ｴｾ＠
Cflfll:tH (NH RC )
ｾ＠
ｾＶＱＴ､ｬ＠
W1t ｾ＠
3fR: ｾ＠
>JmCJ Cfl1 m
CflT
ｾ＠
I
(i)
(a)
m. 18d41(1 3fR: (b) NHRC WU ｾ＠
ｾ＠
(ii)
ｾ＠
-ij ｾ＠
ｾ＠
ｾ＠
ｾ＠
ｾ｣ｴ＿＠
ｾ＠
(iii)
ｾｉ＠
56/1
ｾ＠
ｾＧｉ＠
®mTTmm
"'"if.
ｾ＠
ｾ＠
UfTr<n ｾ＠
ｾ＠
ｾ＠
ｾ＠
ｾ＠
"rci ｾ＠
ｧＦｾ､ＴＱ＠
ｾ＠
ｾＭＢ･ｴ＠
ｾ＠
ｾ＠
ｾ＠
..
I
｣ｦｴｾｬＢｩＺｃ＠
-ij ｾ＠
ｾ＠
ｾ＠
ｾ＠
q;r 3c!J6<0I
3
10
..
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On the occas ion of Worl d Heal th Day, Dr. Satp al orga
nized a 'heal th camp '
for the poor farm ers livin g in a near by villag e. Afte
r chec k-up , he was
shoc ked to see that most of the farm ers suffe red from
canc er due to regu lar
Ｍ
ｾ
ｾ
＠
ｾ
ｲ
Ｍ
･ｸｰｯｳｵｾ＠
pesh c1de s and many were diabe tic. ｔｨ･ｹｾ､＠
free
ｭ･､ｩ｣ｮｾｳ＠
to them . Dr. Satp al imm ediat ely repo rted the matt
er to the
ｾＭｲ＠
Nati onal_ Hum
an Righ ts Com miss ion (NHRC). On the sugg estio
ns of
NHR C, the gove rnme nt decid ed to prov ide medi
cal care, fman cial
assis tance , setti ng up of supe r-spe cialit y hosp itals
for treat men t and
f the dead ly disea se in the affec ted villa ges all over India
.
ｾ＠
Writ e the value s show n by
ｾｄｲＮｓ｡ｴｰｬ＠
ｾﾷ＠
ｾ｡ｴ＠
NHR C.
type of analg esics are chief ly used for the relie f of
pain s of
term inal canc er ?
ｾ･＠
an exam ple of artifi cial swee tener that could have
been
recom mend ed to diabe tic patie nts.
(i)
ｾ＠
(h)
'i 1(1(<11
ｾ＠
60 g
i
ｾｏｬｱｈ＠
fcl{14"l -ij
ｾＭ
Ｑ
"'18 0 g ｾＭ
fc!M4"l -ij ｾ＠
56/1
Ｉ＠ ｾ＠
>Jftr ffic:<
ｾ＠
Ｑ
I
Ｉ＠ ｾ＠
ｾ＠
fcl{14"l -ij 15 g ｾ＠
fcl{14"l
ｾ＠
q;f
fcl{14"l ｾ＠
J<?(Cbl'#l q;r ｾＰＴＱＢ＠
ｱｦｻＺ［ｾＱ＼＠
11
q(I(Ol(OI
m
ｾ＠
Ｈｾ＠
ｾ＠
-ij ｊｾｃｦｬＧＣｴ＠
((Olqq(I(Ol{)) ｾ＠
ｾ＠
I
=
ｾｏｬｱＢ＠
Ｈｾ＠
1
ｾ＠
ffic:<
2, 3
P.T.O .
...
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ｔｬＺｾ＠
3fu:
(a)
i):m2.l"1 CfiT
m53JUT ｾ＠
)("Cf)R
CfiT ｍＧｩＺｬｾｈ＠
ｾ＠
? CfiRUT
-n: ｾ＠
ｾ＠
R@ldl
ｾｉ＠
(b)
ｾ＠
-q
t
ｬｾ｣ｮ［ｩ＠
10% ＨｾＰＴＧＢＡＱ＠
(M(VIll"'l q:;r
(a)
(b)
Ｈｾ＠
ｾＩ＠
t:R('q
= 180 g llffi-1 )
ｾＰＴＧＢＡＱ＠
I
ｾ＠
M(1ll"1
ｾ＠
ｾ＠
ｾ＠
M(1ll"1
l{}(1(1dl
3fu:
l{}(VI{dl CFIT
mit ?
= 1·2 g mL-1)
Define the following terms :
(i)
Molarity
(ii)
Molal elevation constant (Kb)
2, 3
.·
A solution containing 15 g urea (molar mass= 60 g mol- 1) per litre
of solution in water has the same osmotic pressure (isotonic) as a
solution of glucose (molar mass= 180 g mol-1) in water. Calculate
the mass of glucose present in one lit
56/1
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(b)
ｾ
Ｍ ｾ＠
CfiRUT ｾ＠
(i)
Zn
(ii)
ｾＴＰＱ＠
(iii)
:
cnT ｾＴＰＱ＠
mq
-;@ l1HT ｾ＠
I
ｭｧｾ＠
Ｓ
ｍｮ
ＫＡｍｮ
1
Ｒ
ＫｾＬ＠
ｃｲ
Ｓ
Ｋ［｣ｾ＠
ｾ＠ ｾ＠
ｾ＠
E l1R ｾ＠
ｾ＠ I
0
\[) (j . / )
ｾ＿Ｎｔｃｉ＠
(i)
ｾ＠
ｱｦｴＺｊ［ｰｾＨＢｬｯ＠
.311\ ｑｦ｣ｾ＼ｩｔＴ＠
ｾ＠
311\
ｾ＠
ｾ＠
i' ')ｾｑ＠
'\
ｾ＠ \,\_( • "}-
UBI4Rcti
ｾ＠
2, 3
ＳｬｦＧｩＦＴＱｾｴＨｯ＠
ｾ＠
ｾ＠
-q ｾ＠
I
-J
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ｾｩｴｨ＠
referen ce to structu ral variabi lity and chemical reactivi ty,
write the differences betwee
n ｬ｡ｮｴｨｯｩｾ､ｳＮ＠
.
'
-----------
r---
ｾ＠
N arne a membe r of the lanthan oid series which is well known to
exhibit +4 oxidatio n state.
ｾ＠
Comple te the following equati; n :
Mn04- + 8H+ + 5e-
/
ｾＩ＠
Out
ofMn3+
_/.
f.n:;r
ｾ＠
ｾ＠
Cr3+,
1
and
which is more parama gnetic and why?
(Atomic nos. : Mn = 25, Cr = 24)
ｾ＠
ｾ＠ ｃｈ Ｓ ｃｈｏｾ＠
(i)
HCN
(ii)
H 2 N- OH
(iii) 03; NaOH ｾ＠
ｾ＠
. (b)
ｾ＠
ｾ＠
ｾ＠
(a)
ｾ＠
(c)
ｾ
Ｚ＠
ｾ＠
ｾ＠
ｾ＠
uet4f.lcti Ｍ｣ｒｔｾＺ＠
ｾ＠
3, 2
:
CH3COOH ｾ＠
(ii)
etitiSilFcrure<n
;w:T
CfiT
SIV"'.n ..
Cf>RUT ｾ＠
ｾ＠
-ij Cl- CH2 COOH ｾ＠
ｾ＠
･ｴｩｓｬｦＮｾ＠
mfuf ｾＳＱ＠
ｾ＠
ｾ＠
ｾ＠
ｾ＠
ｾ＠
ｾ＠
ｾ＠
ｾ＠
<IBI4Rcti wftCfi{OI
ｾ＠
ｾ＠
I
,
ｾＺ＠
..;s ｾ＠
(i)
ｩｬｾＭＮｧ＠
Cii)
4>f.l':lltil
CH3 CH2
ｾ＠
ｾ＠
(i)
f.p::;r
(b)
Ｍ ｾ＠
ｾ Ｍﾷ ｾ＠ ｾ＠ ｾ＠
-ij CH3CHO
ｾ＠
ｾ＠
ｾ
(ii)
Ｓｱｾ＠
-ij ｾ＠
ｾｱ［＠
(i)
ｾ＠
-
ｾ＠
CO- CH2
3it4ls1g:;T4 ｷｾ＠
5&1
ｾ＠
-
CH3 ｾ＠
ｾ＠ ?
CH3CH2
-
CH2
-
CO- CH3 -ij ｾ＠
2, 2, 1
14
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l
(a)
Write the products formed when CH3 CHO reacts with the
following reagents :
(i)
HCN
(ii)
H 2 N- OH
(iii)
CH CH0 in the presence of dilute NaOH
3
Give simple chemical tests to distinguish between the following
(b)
---
pairs of compounds :
(i)
Benzoic acid and Phenol
(ii)
Propanal and Propanone
ｾ＠
OR
Ｈ｡ｾｯｵｮｴ＠
for the following :
Cl- CH COOH is a stronger acid than CH 3COOH.
/
2
ｾｲ｢ｯｸｹｬｩ｣＠
acids do not give reactions of carbonyl group.
ｾｲｩｴ･＠
the chemical equations to illustrate the following name
reactions:
ｾｒｯｳ･ｮｭｵ､＠
ｾｃ｡ｮｩｺｲｯＧｳ＠
reduction
ｾ＠
--
reaction
l
.,.
i> '
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