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Tardigrade
Question
Chemistry
When a manganous salt is fused with a mixture of KNO3 and solid NaOH the oxidation number of Mn changes from +2 to
Q. When a manganous salt is fused with a mixture of
K
N
O
3
and solid
N
a
O
H
the oxidation number of
M
n
changes from
+
2
to
3828
219
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WBJEE 2010
Redox Reactions
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A
+4
25%
B
+3
33%
C
+6
25%
D
+7
17%
Solution:
M
n
+
2
(
+
2
)
+
N
O
3
−
+
O
H
−
⟶
M
n
O
4
−
2
(
+
6
)
+
H
2
O