Potassium manganate $\left(\mathrm{K}_{2} \mathrm{MnO}_{4} ight)$ is formed when\

Question

Potassium manganate $\left(\mathrm{K}_{2} \mathrm{MnO}_{4}ight)$ is formed when\

Professor PC Thomas Classes · Answer

(b, c) : $2 \mathrm{MnO}_{2}+4 \mathrm{KOH}+\mathrm{O}_{2} \xrightarrow{	ext { heat }}$ $$ 2 \mathrm{~K}_{2} \mathrm{MnO}_{4}+2 \mathrm{H}_{2} \mathrm{O} $$ $\mathrm{HCHO}+2 \mathrm{KMnO}_{4}+2 \mathrm{KOH} \longrightarrow$\ $2 \mathrm{~K}_{2} \mathrm{MnO}_{4}+\mathrm{H}_{2} \mathrm{O}+\mathrm{HCOOH}$\