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Electrolytic Cells and Electrolysis
Electrolytic Cells and Electrolysis
Revise with Concepts
Electrolytic Cells and Electrolysis
Example
Definitions
Formulaes
Faraday's Law
Example
Definitions
Formulaes
Products of Electrolysis
Example
Definitions
Formulaes
Learn with Videos
Introduction to Electrolysis
9 mins
Faraday's First Law of Electrolysis
12 mins
Faradays Second Law of Electrolysis
25 mins
Numerical on Faraday's First Law of Electrolysis
13 mins
Numerical on Faraday's Second Law of Electrolysis
12 mins
Electrolysis of Molten NaCl
14 mins
Quick Summary With Stories
Introduction to Electrolysis
3 mins read
Faraday Second Law of Electrolysis
3 mins read
Important Questions
Calculate the emf of the cell in which of the following reaction takes place:
N
i
(
s
)
+
2
A
g
+
(
0
.
0
0
2
M
)
→
N
i
2
+
(
0
.
1
6
0
M
)
+
2
A
g
(
s
)
[Given that
E
c
e
l
l
∘
=
1
.
0
5
V
]
Medium
AIIMS
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>
How would you determine the standard electrode potential of the
M
g
2
+
∣
M
g
?
Hard
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>
How much charge is required for the following reductions?
(i)
1
m
o
l
of
A
l
3
+
to
A
l
(ii)
1
m
o
l
of
C
u
2
+
to
C
u
(iii)
1
m
o
l
of
M
n
O
4
−
to
M
n
2
+
Medium
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>
How many electrons are there in one coulomb of electricity?
Medium
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>
How much electricity in terms of Faraday is required to produce:
(i)
2
0
g
of
C
a
from molten
C
a
C
l
2
(ii)
4
0
g
of
A
l
from molten
A
l
2
O
3
[Given : Molar mass of calcium & Aluminium are 40 g
m
o
l
−
1
& 27 g
m
o
l
−
1
respectively]
Medium
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>
A solution of
N
i
(
N
O
3
)
2
is electrolysed between platinum electrodes using a current of
5
amperes for
2
0
minutes. What mass of
N
i
is deposited at the cathode?
Medium
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>
Three electrolytic cells
A
,
B
,
C
containing solutions of
Z
n
S
O
4
,
A
g
N
O
3
and
C
u
S
O
3
, respectively are connected in series. A steady current of
1
.
5
amperes was passed through them until
1
.
4
5
g
of silver deposited at the cathode of cell
B
. How long did the current flow? What mass of copper and zinc were deposited?
Hard
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>
A solution of
C
u
S
o
4
is electrolysed for 10 minutes with a current of 1.5 amperes. What is the mass of copper deposited at the cathode?
Medium
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>
During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 amperes is:
Hard
NEET
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>
In electrolysis of water:
(a) Name the gas collected at cathode and anode.
(b) Why is volume of one gas collected at one electrode is double of anode?
(c) Why are few drops of dilute
H
2
S
O
4
added to water?
Medium
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>