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Byju's Answer
Standard XII
Chemistry
Catalytic Hydrogenation
For the half ...
Question
For the half cell reaction at 298 K,
H
+
(
a
q
)
+
e
−
→
1
2
H
2
(
g
)
(1 atm
)
A
E
H
+
/
H
2
=
−
59.2
×
p
H
m
V
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B
E
0
H
+
/
H
2
=
−
59.2
×
p
H
m
V
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C
E
0
H
+
/
H
2
=
p
H
×
log
[
H
+
]
V
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D
E
H
+
/
H
2
=
p
H
×
log
[
H
+
]
V
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Solution
The correct option is
A
E
H
+
/
H
2
=
−
59.2
×
p
H
m
V
H
+
(
a
q
)
+
e
−
→
1
2
H
2
(
g
)
E
H
+
/
H
2
=
E
0
H
+
/
H
2
−
0.0592
1
log
(
p
H
2
)
1
2
[
H
+
]
=
0
+
0.0592
×
log
[
H
+
]
=
−
0.0592
×
p
H
V
=
−
59.2
×
p
H
m
V
Suggest Corrections
0
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Q.
What is pH of the half-cell
P
t
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Q.
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The cell reaction for the given cell is:
Q.
Calculate the electronegativity (10 time) of fluorine on Pauling scale form the following data:
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Q.
A hydrogen atom and
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