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

Options

A. hydrogen peroxide
B. cone. nitric acid
C. peroxodisulphate
D. dichromate

Answer

C

Explanation

In laboratory, manganese (II) ion salt is oxidised to permagnate ion in aqueous solution by peroxodisulphate.
`underset("Peroxodisulphate ion")(2Mn^(2+)+S_(2)O_(8)^(2-)+8H_(2)O) to 2MnO_(4)^(-)+10SO_(4)^(2-)+16H^(+)`