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Byju's Answer
Standard XII
Chemistry
Other Synthesis Methods
Na+ + e- → Na...
Question
N
a
+
+
e
−
→
N
a
The reaction occurs at:
A
cathode
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B
anode
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C
both A and B
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D
none of the above
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Solution
The correct option is
A
cathode
Cations move towards cathode. The reaction occurs at cathode.
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0
Similar questions
Q.
Verify n(A
∪
B
∪
C) = n(A) + n(B) + n(C) – n(A
∩
B) – n(B
∩
C) – n(A
∩
C) + n(A
∩
B
∪
C) for the following sets. A = {a, c, e, f, h}, B = {c, d, e, f} and C = {a, b, c, f}
Q.
Identify the type of change occurs in the following reaction:
23
11
N
a
+
2
1
H
⟶
24
11
N
a
+
1
1
H
Q.
Verify
n
(
A
∪
B
∪
C
)
=
n
(
A
)
+
n
(
B
)
+
n
(
c
)
−
n
(
A
∩
B
)
−
n
(
B
∩
C
)
−
n
(
A
∩
C
)
+
n
(
A
∩
B
∩
C
)
for the sets given below:
(i) A={4,5,6}, B={5,6,7,8} and C={6,7,8,9}
(ii) A={a, b, c, d, e}, B={x, y, z} and C={a, e, x}
Q.
State as oxidation or reduction in the given reaction:
N
a
−
e
−
→
N
a
+
Q.
Following reactions occur at cathode during the electrolysis of aqueous sodium chloride solution:
N
a
+
(
a
q
)
+
e
−
→
N
a
(
s
)
E
0
=
−
2.71
V
H
+
(
a
q
)
+
e
−
→
1
2
H
2
(
g
)
E
0
=
0.00
V
On the basis of their standard reduction electrode potential
(
E
0
)
values, which reaction is feasible at the cathode and why?
(b) Why does the cell potential of mercury cell reamin constant throughout its life?
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