What does the reaction ${\mathrm{H}}_2\mathrm{S}+{\mathrm{H}}_2{\mathrm{O}}_2\to \mathrm{S}+2{\mathrm{H}}_2\mathrm{O}$manifest?

Redox reaction:

• The reaction in which oxidation and reduction take place simultaneously is known as the Redox reaction.
• The given reaction is a type of redox reaction.

$$\begin{gathered} {\mathrm{H}}_2\mathrm{S}\left(\mathrm{g}\right)+{\mathrm{H}}_2{\mathrm{O}}_2\left(\mathrm{l}\right)\to \mathrm{S}\left(\mathrm{s}\right)+2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right) \\ (\mathrm{Hydrogen}\mathrm{disulfide})(\mathrm{Hydrogen}\mathrm{peroxide})\left(\mathrm{Sulfur}\right)\left(\mathrm{water}\right) \end{gathered}$$

• In this reaction, ${\mathrm{H}}_2\mathrm{S}$ works as a reducing agent while ${\mathrm{H}}_2{\mathrm{O}}_2$ serves as an oxidizing agent.
• This reaction shows the oxidizing nature of Hydrogen peroxide as it oxidizes from $-2\mathrm{to}0$ oxidation state.