1.

Number of electrons transferred in each case when KMnO_4 acts as an oxidising agent to give MnO_2, Mn^(2+), Mn_2(O)_3 and MnO_4^(2-) respectively are :

Answer»

3, 5, 4 and 1
4, 3, 1 and 5
1, 3 , 4 and 5
5, 4, 3 and 1

Answer :A


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