( begin array l Fe(s)+Cd^ 2+ (aq) longrightarrow Fe^ 2+ (aq)+Cd(s) এখানে, Fe^ 2 / Fe^ 2+ (aq)=+0.44 ~V এবং Cd^ 2+ (aq) / Cd(s)=-0.40 ~V Ni^ 2+ / Ni=-0.25 ~V end array )

\begin{array}{l}\mathrm{Fe}(\mathrm{s})+\mathrm{Cd}^{2+}(\mathrm{aq}) \longrightarrow \mathrm{Fe}^{2+}(\mathrm{aq})+\mathrm{Cd}(\mathrm{s}) \\ \text { এখানে, } \mathrm{Fe}^{2} / \mathrm{Fe}^{2+}(\mathrm{aq})=+0.44 \mathrm{~V} \text { এবং } \mathrm{Cd}^{2+}(\mathrm{aq}) / \mathrm{Cd}(\mathrm{s})=-0.40 \mathrm{~V} \\ \mathrm{Ni}^{2+} / \mathrm{Ni}=-0.25 \mathrm{~V}\end{array}

SCC 25