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JEEMAIN and NEET
>>
JEEMAIN PAST PAPERS
>>
2009
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Q)
On the basis of the following thermochemical data :
(
Δ
f
G
∘
H
+
(
a
q
)
=
0
)
<br>
H
2
O
(
ℓ
)
→
H
+
(
a
q
)
+
O
H
−
(
a
q
)
;
Δ
H
=
57.32
k
J
<br>
H
2
(
g
)
+
1
2
O
2
(
g
)
→
H
2
O
(
ℓ
)
;
Δ
H
=
−
286.20
k
J
<br> The value of enthalpy of formation of
O
H
−
ion at
25
∘
C
is :
( A )
−
343.52
kJ
( B )
−
228.88
kJ
( C )
−
22.88
kJ
( D )
+
228.88
kJ
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