An iron rod is immersed in a solution containing NisO_4 and ZnSO_4 . When the concentration of each salt is 1 M, predict giving reasons which of the following reactions is likely to proceed ? (i) Iron reduces Zn^(2+) ions (ii) Iron reduces Ni^(2+) ions Given : E_((Zn^(2+)|Zn))^@=-0.76V,E_((Fe^(2+)|Fe))^@=0.44V and E_((Ni^(2+)|Ni)^@=-0.25V

An iron rod is immersed in a solution containing NisO_4 and ZnSO_4 . W

1.	An iron rod is immersed in a solution containing NisO_4 and ZnSO_4 . When the concentration of each salt is 1 M, predict giving reasons which of the following reactions is likely to proceed ? (i) Iron reduces Zn^(2+) ions (ii) Iron reduces Ni^(2+) ions Given : E_((Zn^(2+)\|Zn))^@=-0.76V,E_((Fe^(2+)\|Fe))^@=0.44V and E_((Ni^(2+)\|Ni)^@=-0.25V
Answer» Solution :(i) The reduction potential of IRON is more than that of ZINC. Therefore , iron will be REDUCED . In other words, `ZN^(2+)` will not be reduced by iron. (ii)The reduction potential of `Ni^(2+)` is more than that of iron . Therefore , `Ni^(2+)` will be reduced iron.