Chemistry - Complete d-block Question with Solution | TestHub

The rusting of iron is catalysed by${\mathrm{H}}^{+}$(acidic medium)
${\mathrm{O}}_2+4{\mathrm{H}}^{+}+4{\mathrm{e}}^{-}\to 2{\mathrm{H}}_2\mathrm{O}$
The more the concentration of${\mathrm{H}}^{+}$, the faster is the rusting of iron.