When KMnO4 acts as an oxidising agent and ultimately forms [MnO4]2− , MnO2 ,Mn2O3, [Mn]2+ ,then the number of electrons transferred in each case respectively is
A
4, 3, 1, 5
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B
1, 5, 3, 7
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C
1, 3, 4, 5
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D
3, 5, 7, 1
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