1.

Out of the following metals that cannot be obtained by electrolysis of the aqueous solution of their salts is

Answer»

Ag
Cr
Cu and Al
MG

Solution :SINCE the reduction POTENTIAL of `Mg^(2+)(-2.37V)` is much lower than that of `H_(2)O(-0.83V)`, therefore `H_(2)O` GETS reduced in preference of `Mg^(2+)` IONS.


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