Potassium permanganate acts as an oxidant in neutral, alkaline as well as acidic media. The final product obtained from it in three condition are respectively:

Options

A. `MnO_(2), MnO_(2), Mn^(2+)`
B. `MnO_(2)^(2-), Mn^(3+) Mn^(2+)`
C. `MnO_(2), MnO_(4)^(2-), Mn^(3+)`
D. `MnO, MnO_(4), Mn^(2+)`

Answer

A

Explanation

`MnO_(2), MnO_(2), Mn^(2+)`
In neutral medium: `2KMnO_(4) + 3 MnO_(4) + 2H_(2) O rarr`
`K_(2) SO_(4) + 2H_(2)SO_(4) + 5MnO_(2)`
In alkaline medium:
`2KMnO_(4) + H_(2)O rarr 2MnO_(2) + 2KOH + 3 O`
In acidic medium:
`2KMnO_(4) + 3H_(2)SO_(4) rarr K_(2) SO_(4) + 2MnSO_(4) + 5H_(2) O + 5 O`