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(i) ( Al(s) / Al^ 3+ (aq) | Fe^ 2+ (aq) / Fe(s) ; E_ cell ^ 0 =+1.22 ~V ); [এখানে ( left.E_ A^ prime / Al^ 3+ ^ 0 =+1.66 ~V right] ) (ii) ( Zn(s) / Zn^ 2+ (aq) | Ag^ + (aq) / Ag(s) | Suva Ai