Consider the following reaction MnO_2+ KOH + O_2 → A + H_2 O. Product ' A ' in neutral or acidic medium disproportionate to give products ' B ' and '…

Consider the following reaction $\displaystyle \mathrm{MnO}_2+\mathrm{KOH}+\mathrm{O}_2 \rightarrow \mathrm{~A}+\mathrm{H}_2 \mathrm{O}$. Product ' A ' in neutral or acidic medium disproportionate to give products ' B ' and ' C ' along with water. The sum of spin-only magnetic moment values of $\displaystyle B$ and $\displaystyle C$ is $\displaystyle \_\_\_\_$ BM. (nearest integer) (Given atomic number of Mn is $\displaystyle 25$)