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JEEMAIN and NEET
>>
NEET PAST PAPERS
>>
2007
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Q)
Given that bond energies of
H
−
H
and
C
l
−
C
l
are 430
k
J
m
o
l
−
1
and 240
k
J
m
o
l
−
1
respectively and
Δ
f
H
for
H
C
l
is -90
k
J
m
o
l
−
1
. Bond enthalpy of
H
C
l
is :
( A ) 290
k
J
m
o
l
−
1
( B ) 425
k
J
m
o
l
−
1
( C ) 245
k
J
m
o
l
−
1
( D ) 380
k
J
m
o
l
−
1
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