1.

When treated with H_(2)O_(2) aqueous KMnO_(4) in acidic medium gives finally

Answer»

`Mn^(2+)`
`Mn^(3+)`
`Mn^(4+)`
`Mn^(6+)`

SOLUTION :`H_2O_2 + KMnO_4 + H_2SO_4 toMnSO_4+ K_2SO_4 + H_2O + O_2`


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