Chemistry - Redox Reactions Question with Solution | TestHub

In${\mathrm{C}}_2{\mathrm{O}}_4^{2-}\to \mathrm{C}{\mathrm{O}}_2$oxidation number of carbon change from$+3$$\mathrm{t}\mathrm{o}\mathrm{ }+4$.

In$\mathrm{S}{\mathrm{O}}_4^{2-}\to \mathrm{S}{\mathrm{O}}_3^{2-}$oxidation number of sulphur change from$+\mathrm{6 }\mathrm{t}\mathrm{o}+4$.

In$\mathrm{M}\mathrm{n}{\mathrm{O}}_4^{2-}\to \mathrm{M}\mathrm{n}{\mathrm{O}}_4^{-}$oxidation number of Mn change from$+\mathrm{6 }\mathrm{t}\mathrm{o}+7$.

In$\mathrm{F}{\mathrm{e}}^{3+}\to \mathrm{F}{\mathrm{e}}^{2+}$oxidation number of carbon change from +3 to +2.