1.

Permanganate ion changes to……………. in acidic medium.

Answer»

`MnO_(4)^(2-)`
`Mn^(2+)`
`Mn^(3+)`
`MnO_(2)`

Solution :`MnO_(4)^(-)+ 8H^(+)+ 5e^(-) to Mn^(2+)+ H_(2)O`


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