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IIT JEE Advanced 2010 Paper 1
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Question : 38
Total: 84
Aqueous solutions of
H
N
O
3
, KOH,
C
H
3
C
O
O
H
and
C
H
3
C
O
O
N
a
of identical concentrations are provided. The pair(s) of solutions which from a buffer upon mixing is(are)
H
N
O
3
and
C
H
3
C
O
O
H
.
KOH and
C
H
3
C
O
O
N
a
.
H
N
O
3
and
C
H
3
C
O
O
N
a
.
C
H
3
C
O
O
H
and
C
H
3
C
O
O
N
a
.
Validate
Solution:
In option (C), if
H
N
O
3
is present in limiting amount then this mixture will be a buffer and in option (D), the mixture contains a weak acid, that is, acetic acid and its salt of strong base, that is, sodium acetate.
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