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Byju's Answer
Standard XII
Chemistry
Buffer Solutions
From the give...
Question
From the give options, which of the following compound will make best buffer solution?
A
H
2
O
,
1
M
N
a
O
H
,
1
M
H
2
S
O
4
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B
H
2
O
,
1
M
C
H
3
C
O
O
H
,
1
M
N
a
+
C
H
3
C
O
O
−
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C
H
2
O
,
1
M
C
H
3
C
O
O
H
,
6
M
N
a
+
C
H
3
C
O
O
−
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D
H
2
O
,
1
M
C
H
3
C
O
O
H
,
1
M
N
a
O
H
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Solution
The correct option is
A
H
2
O
,
1
M
C
H
3
C
O
O
H
,
1
M
N
a
+
C
H
3
C
O
O
−
Since the acidic buffer is a mixture of weak acid plus its salt with a strong base. So
B
is correct.
And there should be base as limiting reagent
(
c
o
n
c
n
o
f
b
a
s
e
<
c
o
n
c
n
o
f
a
c
i
d
)
Suggest Corrections
0
Similar questions
Q.
The correct order of rate of
S
N
2
reactivity of
H
2
O
,
−
O
C
H
3
,
−
O
H
and
C
H
3
C
O
O
−
is
Q.
C
H
3
C
O
O
H
+
O
H
−
⇋
C
H
3
C
O
O
−
+
H
2
O
+
q
1
and
H
+
+
O
H
−
⇋
H
2
O
+
q
2
Then what is the enthalpy for reaction ?
C
H
3
C
O
O
H
⇋
C
H
3
C
O
O
−
+
H
+
Q.
If
C
H
3
C
O
O
H
+
O
H
−
→
C
H
3
C
O
O
−
+
H
2
O
+
q
1
H
+
+
O
H
−
→
H
2
O
+
q
2
then the enthalpy change for the reaction
C
H
3
C
O
O
H
→
C
H
3
C
O
O
−
+
H
+
is equal to:
Q.
C
H
3
C
O
O
H
+
H
2
O
⇌
C
H
3
C
O
O
−
+
H
3
O
+
;
K
1
=
1.8
×
10
−
5
2
H
2
O
⇌
H
3
O
+
+
O
H
−
,
K
2
=
1
×
10
14
Equilibrium constant for reaction
C
H
3
C
O
O
H
+
O
H
−
⇌
C
H
3
C
O
O
−
+
H
2
O
is
x
×
10
9
. Find 'x'.
Q.
Which is a stronger base in each of the following pairs?
(i)
H
2
O
,
C
l
−
(ii)
C
H
3
C
O
O
−
,
O
H
−
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