(i) ( Fe(s) / Fe^ 2+ (aq) | Cu^ 2+ (aq) / Cu(s) ) (ii) ( Ag(s) / Ag^ + (aq) | Zn^ 2+ (aq) Zn(s) ) দেওয়া আছে, ( E^ circ Fe / Fe^ 2+ =0.44 ~V ; E^ circ Cu^ 2+ / Cu=0.34 ~V ) ( E^ ci

\mathrm{Fe}(\mathrm{s}) / \mathrm{Fe}^{2+}(\mathrm{aq}) \| \mathrm{Cu}^{2+}(\mathrm{aq}) / \mathrm{Cu}(\mathrm{s})

BB 22

(i) ( Fe(s) / Fe^ 2+ (aq) | Cu^ 2+ (aq) / Cu(s) ) (ii) ( Ag(s) / Ag^ + (aq) | Zn^ 2+ (aq) Zn(s) ) দেওয়া আছে, ( E^ circ Fe / Fe^ 2+ =0.44 ~V ; E^ circ Cu^ 2+ / Cu=0.34 ~V ) ( E^ circ Ag / Ag^ + ^ + =-0.799 ~V ; E^ circ Zn^ 2+ / Zn=-0.76 ~V )