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When `KMnO_(4)` acts as an oxidising agnet and ultimetely from `MnO_(4)^(2-), MnO_(2), Mn_(2)O_(3)`, and `Mn^(2+)`, then the number of electrons transferred in each case, respectively, are
A. 4,3,1,5
B. 1,5,3,7
C. 1,3,5,4
D. 3,5,7,1

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Correct Answer - C
Oxidation states `MnO_(4)^(-2), MnO_(2), Mn_(2)O_(3)` and `Mn^(+2)` are `+6,+4,+3,+2`

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