Chemistry - Electrochemistry Question with Solution | TestHub

Given the standard oxidation potentials,
$\text{Fe}\stackrel{\text{+}\text{0}\text{.4}\text{V}}{\to }{\text{Fe}}^{\text{2+}}\text{(aq)}\stackrel{-\text{0}\text{.8}\text{V}}{\to }{\text{Fe}}^{\text{3+}}\text{(aq)}\text{[in}\text{acidic}\text{medium]}$
$\text{Fe}\stackrel{\text{+}\text{0}\text{.9}\text{V}}{\to }{\text{Fe(OH)}}_{\text{2}}\stackrel{\text{0}\text{.6}\text{V}}{\to }{\text{Fe(OH)}}_{\text{3}}\text{[in}\text{basic}\text{medium]}$
It is easier to oxidise$\mathrm{F}{\mathrm{e}}^{2+}$to$\mathrm{F}{\mathrm{e}}^{3+}$in