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AIEEE 2004 Chemistry Solved Paper
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© examsnet.com
Question : 40
Total: 75
In a cell that utilises the reaction
Zn
(
s
)
+
2
H
+
(
aq
)
→
Zn
2
+
(
aq
)
+
H
2
(
g
)
addition of
H
2
SO
4
to cathode compartment, will
lower the
E
and shift equilibrium to the left
increases the
E
and shift equilibrium to the left
increase the
E
and shift equilibrium to the right
Lower the
E
and shift equilibrium to the right
Validate
Solution:
Z
n
(
s
)
+
2
H
+
+
(
a
q
)
⇌
Z
n
2
+
(
a
q
)
+
H
2
(
g
)
E
cell
=
E
cell
∘
−
0.059
2
log
[
Z
n
2
+
]
[
H
2
]
[
H
+
]
2
Addition of
H
2
SO
4
will increases
[
H
+
]
and
E
cell
will also increase and the equilibrium will shift towards
R
H
S
© examsnet.com
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