Chemistry - Complete s-block Question with Solution | TestHub

${\mathrm{H}}_2{\mathrm{O}}_2$is weakly acidic, but more acidic than water.
${\mathrm{H}}_2{\mathrm{O}}_2+{\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}_3{\mathrm{O}}^{+}+\mathrm{H}{\mathrm{O}}_2^{-}$
A.$2\mathrm{F}{\mathrm{e}}^{2+}+{\mathrm{H}}_2{\mathrm{O}}_2+2{\mathrm{H}}^{+}\to 2\mathrm{F}{\mathrm{e}}^{3+}+2{\mathrm{H}}_2\mathrm{O}$
C.${\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4\rightleftharpoons {\mathrm{H}}^{+}+\mathrm{H}\mathrm{S}{\mathrm{O}}_4^{-}$
Anode$2\mathrm{H}\mathrm{S}{\mathrm{O}}_4^{-}\to {\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_8+2{\mathrm{e}}^{-}$
Cathode$2{\mathrm{H}}^{+}+2{\mathrm{e}}^{-}\to {\mathrm{H}}_2$
The peroxy disulphuric acid is hydrolysed separately to get${\mathrm{H}}_2{\mathrm{O}}_2$.
${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_8+{\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_5+{\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4$
${\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_5+{\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4+{\mathrm{H}}_2{\mathrm{O}}_2$
D.$2\mathrm{M}\mathrm{n}{\mathrm{O}}_4^{-}+5{\mathrm{H}}_2{\mathrm{O}}_2+6{\mathrm{H}}^{+}\to 2\mathrm{M}{\mathrm{n}}^{2+}+8{\mathrm{H}}_2\mathrm{O}+5{\mathrm{O}}_2$