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JEE Main Chemistry Class 11 Electrochemistry Part 1 Questions
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© examsnet.com
Question : 97
Total: 100
Which of the following reaction is possible at anode?
[2002]
2
C
r
3
+
+
7
H
2
O
→
C
r
2
O
7
2
−
+
14
H
+
[2002]
F
2
→
2
F
(
1
∕
2
)
O
2
+
2
H
+
→
H
2
O
none of these.
Validate
Solution:
2
C
r
3
+
+
7
H
2
O
→
C
r
2
O
7
2
−
+
14
H
+
O.S. of
C
r
changes from
+
3
to
+
6
by loss of electrons. At anode oxidation takes place.
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