$\frac{\mathrm{W}}{\mathrm{E}}=\frac{\mathrm{Q}}{96500}$
$\text { mole } \times \text { n-factor }=\frac{\mathrm{Q}}{96500}$
$1 \times 2=\frac{\mathrm{Q}}{96500}$
$\mathrm{Q}=2 \times 96500 \mathrm{C}$
$=1.93 \times 10^5 \mathrm{C}$
${[Fe\,{(CN)_6}]^{4 - }}\, \to \,{[Fe{(CN)_6}]^{3 - }}\, + \,{e^ - }\,;\,$ ${E^o}\, = \, - \,0.35\,V$
$\,F{e^{2 + }}\, \to \,F{e^{3 + }}\, + \,{e^ - }\,;$ ${E^o}\, = \, - \,0.77\,V$
(ઝિંકનું પરમાણવીય દળ = $65.4 \mathrm{amu}$ )