1.

In the laboratory, manganese (II) salt is oxidized to pemanganate ion in aqueous solution by

Answer»

Hydrogen peroxide
Conc. Nitric acid
Peroxy disulphate
Dichromate

Solution :In laboratory, POTASSIUM permanganate is prepared by oxidizing a MANGANESE (II) ion salt by peroxodisulphate.
`UNDERSET("peroxodisu lphate ion")(2Mn^(2)+S_(2)O_(8)^(2-)+8H_(2)O)rarr2MnO_(4)^(-)+10SO_(4)^(2-)+16H^(+)`


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