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Question

What is the oxidation number of Mn in KMnO4?


A

+7

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B

+6

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C

+5

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D

+4

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Solution

The correct option is A

+7


KMnO4

For calculating Oxidation number of Manganese -

K = +1, Mn = x, O = -2

+1 + x +(-2)(4) = 0

x = +7


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