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( begin array l (i) Al(s) / Al^ 3+ (aq) | X^ 2+ / X(s) (ii) Al(s) / Al^ 3+ (aq) | Y^ 2+ (aq)^ / Y(s) E_ X / X^ 2+ =+0.14 ~V, E_ AV / Al ^ 3+ =+1.66 ~V ; E_ Y / Y^ 2+ ^ 0 =+0.25 ~V | Suva Ai