In acid solution, the reaction (MnO\_{4}^{-} \rightarrow Mn^... | CHEMISTRY - REDOX REACTIONS IN TERMS OF ELECTRON TRANSFER REACTIONS | SolveeIt | Solveeit

Today, August 23

Question

In acid solution, the reaction $MnO_{4}^{-} \rightarrow Mn^{2 +}$ involves.

A

Oxidation by 3 electrons

B

Reduction by 3 electrons

C

Oxidation by 5 electrons

D

Reduction by 5 electrons

Answer

Reduction by 5 electrons

Explanation

Solution

$MnO_{4}^{-} \rightarrow Mn^{2 +}$ . In this reaction $5e^{-}$ are needed for the reduction of $Mn^{2 +}$ as:

$MnO_{4}^{-} + 5e^{-} \rightarrow Mn^{2 +}$ .