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Standard XII
Chemistry
Solubility Product
Question
The percentage of pyridine
(
C
5
H
5
N
)
that forms pyridinium ion
(
C
5
H
5
N
+
H
)
in a 0.10 M aqueous pyridine solution
(
K
b
for
C
5
H
5
N
=
1.7
×
10
−
9
) is
0.77
%
1.6
%
0.0060
%
0.013
%
A
0.013
%
B
0.0060
%
C
0.77
%
D
1.6
%
Open in App
Solution
Verified by Toppr
C
5
H
5
N
+
H
2
O
→
C
5
H
5
N
H
+
+
O
H
−
1
K
b
=
C
α
2
α
=
√
K
b
C
α
=
√
1.7
×
10
−
9
0.1
α
=
1.30
×
10
−
4
p
e
r
c
e
n
t
a
g
e
o
f
α
=
1.30
×
10
−
4
×
100
=
0.013
%
Hence option D is the correct answer
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The percentage of pyridine
C
5
H
5
N
that forms pyridinium ion
(
C
5
H
5
N
+
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in a 0.10 M aqueous pyridine solution
(
K
b
for
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H
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N
=
1.7
×
10
−
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)
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Q2
The percentage of pyridine
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×
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−
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H
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N
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)
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H
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