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Standard XII
Chemistry
Valency and Oxidation State
Question
In potassium dichromate,
K
2
C
r
2
O
7
, find the oxidation state of chromium?
12
6
1
3
2
A
1
B
6
C
3
D
2
E
12
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Solution
Verified by Toppr
Let,
X
be the oxidation state of
C
r
in
K
2
C
r
2
O
7
.
2
(
+
1
)
+
2
X
+
7
(
−
2
)
=
0
2
+
2
X
−
14
=
0
2
X
=
12
X
=
+
6
Hence, the oxidation state of
C
r
in
K
2
C
r
2
O
7
is +6.
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, find the oxidation state of chromium?
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