Which of the following is not a disproportionation reaction?

\({\mathrm{P}}_{4}+5{\mathrm{OH}}^{-}\to {\mathrm{H}}_{2}{{\mathrm{PO}}_{2}}^{-}\)

\({\mathrm{Cl}}_{2}+{\mathrm{OH}}^{-}\to {\mathrm{Cl}}^{-}+\mathrm{ClO}\)

\(2{\mathrm{H}}_{2}{\mathrm{O}}_{2}\to 2{\mathrm{H}}_{2}\mathrm{O}+{\mathrm{O}}_{2}\)

\({\mathrm{PbO}}_{2}+{\mathrm{H}}_{2}\mathrm{O}\to \mathrm{PbO}+{\mathrm{H}}_{2}{\mathrm{O}}_{2}\)