1.

Aluminium displaces hydrogen from acids but copper does not. A galvainc cell prepared by combining Cu//Cu^(2+) and Al//Al^(3+) has an emf of 2.0 V at 298 K. If the potential of copper electrode is +0.34 then that of the aluminiumelectrode is:

Answer»

`+1.66`V
`-1.66` V
`+2.34`V
`-2.3`V

Answer :C


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