1.

Normal aluminium electrode coupled with normal hydrogen electrode gives an emf of 1.66 volts . So the standard electrode potential of aluminium is

Answer»

`-1.66` V
`+ 1.66` V
`-0.83` V
`+ 0.83` V

SOLUTION :AL undergoes oxidation w.r.t. N.H.E. Hence , its STANDARD electrode potential MUST be negative .


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