Role of hydrogen peroxide in the following reaction is respectively :
$$\begin{gathered} \left(\mathrm{i}\right) {\mathrm{H}}_2{\mathrm{O}}_2+{\mathrm{O}}_3⟶{\mathrm{H}}_2\mathrm{O}+2{\mathrm{O}}_2 \\ \left(\mathrm{ii}\right) {\mathrm{H}}_2{\mathrm{O}}_2+{\mathrm{Ag}}_2\mathrm{O}⟶2\mathrm{Ag}+{\mathrm{H}}_2\mathrm{O}+{\mathrm{O}}_2 \end{gathered}$$

oxidizing in (i) and reducing in (ii)

reducing in (i) and oxidizing in (ii)

reducing in (i) and (ii)

oxidizing in (i) and (ii)