Chemistry - Complete d-block Question with Solution | TestHub

In alkaline solution, ${\mathrm{KMnO}}_4$ is first reduced to manganate and then to insoluble manganese dioxide. $\begin{array}{rl}& 2{\mathrm{KMnO}}_4+{\mathrm{H}}_2\mathrm{O}\stackrel{\text{ alkaline }}{⟶}2{\mathrm{MnO}}_2+2\mathrm{KOH}\\ & +3[\mathrm{O}]\end{array}$