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Byju's Answer
Standard XII
Chemistry
Acidic Buffer Action
Which one of ...
Question
Which one of the following pairs of solution is not an acidic buffer?
A
H
2
C
O
3
and
N
a
2
C
O
3
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B
H
3
P
O
4
and
N
a
3
P
O
4
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C
H
C
l
O
4
and
N
a
C
l
O
4
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D
C
H
3
C
O
O
H
and
C
H
3
C
O
O
N
a
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Solution
The correct option is
C
H
C
l
O
4
and
N
a
C
l
O
4
A buffer solution is one which resists changes in pH when small quantities of an acid or an alkali are added to it.
A solution of
H
C
l
O
4
and
N
a
C
l
O
4
is not an acidic buffer because strong acid with its salt cannot form a buffer solution.
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Similar questions
Q.
Assertion: On mixing equal volumes of 1 M
H
C
l
and of 2 M
C
H
3
C
O
O
N
a
, an acidic buffer solution is formed.
Reason: The resultant mixture contains
C
H
3
C
O
O
H
and
C
H
3
C
O
O
N
a
which are parts of acidic buffer.
Q.
Aqueous solution of
H
N
O
3
,
K
O
H
,
C
H
3
C
O
O
H
and
C
H
3
C
O
O
N
a
of identical concentration are provided. The pair(s) of solution which forms buffer upon mixing is (are)
Q.
pH of
C
H
3
C
O
O
H
and
C
H
3
C
O
O
N
a
buffer is 4.8. In which of the following conc.
conditions, the buffer capacity will be maximum?
[
C
H
3
C
O
O
H
]
&
[
C
H
3
C
O
O
N
a
]
Q.
We have acidic buffer of
C
H
3
C
O
O
N
a
and
C
H
3
C
O
O
H
. One or more of the following operations will not change pH
I : diluting the mixture ten times
II : adding some HCl
III : adding some NaOH
IV : adding equal moles of
C
H
3
C
O
O
N
a
and
C
H
3
C
O
O
H
into the buffer.
Select correct alternate.
Q.
Aqueous solutions of
H
N
O
3
,
K
O
H
,
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 form a buffer upon mixing is (are)
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