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Standard XII
Chemistry
Salt of Weak Acid and Weak Base
Question
p
K
a
of a weak acid
(
H
A
)
and
p
K
b
of a weak base
(
B
O
H
)
are
3.2
and
3.4
, respectively. The
p
H
of their salt
(
A
B
)
solution is :
7.0
7.2
1.0
6.9
A
6.9
B
7.0
C
1.0
D
7.2
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Solution
Verified by Toppr
We know,
p
H
=
1
2
(
p
K
w
+
p
K
a
−
p
K
b
)
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Similar Questions
Q1
What will be
p
H
of aqueous salt solution of
A
B
if
p
K
a
of weak acid
H
A
is
4
and
p
K
b
of weak base BOH is 5 ?
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