1.

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:

Answer»

`MnO_(2),NnO_(2),MN^(2+)`
`MnO_(4)^(2-),Mn^(3+),Mn^(2+)`
`MnO_(2),MnO_(4)^(2-),Mn^(3+)`
`MnO,MnO_(4),Mn^(2+)`

Solution :`MnO_(2),MnO_(2), Mn^(2+)` In neutral medium,
`2KMnO_(4)+3MnSO_(4)+2H_(2)OrarrK_(2)SO_(4)+2H_(2)SO_(4)+5MnO_(2)`
In alkaline medium,
`2KMnO_(4)+H_(2)Orarr 2MnO_(2)+2KOH+3O`
In acidic medium,
`2KMnO_(4)+3H_(2)SO_(4)rarrK_(2)SO_(4)+2overset(+2)MnSO_(4)+5H_(2)O+5O`


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