Chemistry - f-block Question with Solution | TestHub

$\mathrm{F}{\mathrm{e}}^{+3}+\mathrm{C}\mathrm{d}\to \mathrm{C}{\mathrm{d}}^{+2}+\mathrm{F}{\mathrm{e}}^{+2}$

${\text{Fe}}^{+3}+{\text{I}}^{-}\to {\text{Fe}}^{+2}+{\text{I}}_2$

${\text{Fe}}^{\text{+2}}+{\text{MnO}}_4^{-}\stackrel{{\text{H}}^{\text{+}}}{\to }{\text{Fe}}^{\text{+3}}+{\text{Mn}}^{\text{+2}}$

$\mathrm{F}{\mathrm{e}}^{+3}+\mathrm{C}{\mathrm{e}}^{+3}\to \mathrm{F}{\mathrm{e}}^{+2}+\mathrm{C}{\mathrm{e}}^{+4}$