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JEEMAIN and NEET
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NEET PAST PAPERS
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2003
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Q)
On the basis of the information available from the reaction : <br>
4
3
A
l
+
O
2
→
2
3
A
l
2
O
3
,
Δ
G
=
−
827
K
J
m
o
l
−
1
of
O
2
, the minimum e.m.f required to carry out electrolysis of
A
l
2
O
3
is
(
F
=
96500
C
m
o
l
−
1
)
( A ) 6.42 V
( B ) 4.28 V
( C ) 8.56 V
( D ) 2.14 V
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