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Question

The Oxidation state of Mn in K2 MnO4 is

A
2
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B
7
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C
-2
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D
6
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Solution

The correct option is D 6
O. S. (O) =-2
O.S. (K) =+2 (alkali metal)
K2 MnO4 2(1)+n2(4)=0
n =8-2 =+6
So, oxidation state of Mn is +6

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