MnO_(4)^(-2) undergoes disproportionation reaction in acidic medium but MnO_(4)^(-) does not. Give reason.

MnO_(4)^(-2) undergoes disproportionation reaction in acidic medium bu

1.	MnO_(4)^(-2) undergoes disproportionation reaction in acidic medium but MnO_(4)^(-) does not. Give reason.
Answer» Solution :In `MnO_(4)^(-2)` oxidation number MN is +6 but its increases +7 or DECREASES +4, +3, +2, 0. So this type of reaction is known as disproportionation reaction. In `MnO_(4)^(-)` oxidation number of Mn is +7 which CONTAINS less oxidation number than +7. So `MnO_(4)^(-)` not acts as disproportionation reaction.