Chemistry - Complete d-block Question with Solution | TestHub

$\mathrm{M}\mathrm{n}{\mathrm{O}}_4^{-}$ions can be reduced in strongly alkaline medium to give$\mathrm{M}\mathrm{n}{\mathrm{O}}_4^{2-}$
$\underset{\left(\mathrm{P}\mathrm{u}\mathrm{r}\mathrm{p}\mathrm{l}\mathrm{e}\right)}{\mathrm{M}\mathrm{n}{\mathrm{O}}_4^{-}}+{\mathrm{e}}^{-}\to \underset{\left(\mathrm{G}\mathrm{r}\mathrm{e}\mathrm{e}\mathrm{n}\right)}{\mathrm{M}\mathrm{n}{\mathrm{O}}_4^{2-}}$