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Tardigrade
Question
Chemistry
Oxidation number of Mn atom in KMnO4 is
Q. Oxidation number of
M
n
atom in
K
M
n
O
4
is
1959
202
BHU
BHU 2007
Report Error
A
6
B
7
C
14
D
5
Solution:
The sum of the oxidation numbers of all the atoms in a molecule of a neutral compound is zero.
Let the oxidation number of
M
n
is '
x
' in
K
M
n
O
4
(
+
1
)
+
x
+
4
(
−
2
)
=
0
x
−
7
=
0
x
=
7