Chemistry - Complete d-block Question with Solution | TestHub

$2\mathrm{M}\mathrm{n}{\mathrm{O}}_4^{-}+5\mathrm{S}{\mathrm{O}}_3^{2-}+6{\mathrm{H}}^{+}\to 2\mathrm{M}{\mathrm{n}}^{2+}+5\mathrm{S}{\mathrm{O}}_4^{2-}+3{\mathrm{H}}_2\mathrm{O}$
As 5 moles sulphite ion reacts with 2 moles of$\mathrm{M}\mathrm{n}{\mathrm{O}}_4^{-}$. So, 1 mole will reacts with 2/5 moles of${\text{MnO}}_4^{-}$.