1.

Aluminium displaces hydrogen from acids but copper does not. A galvanic cell prepared by combining Cu//Cu^(2+) and Al//Al^(3+) has an e.m.f. of 2.0 V at 298 K. if the potential of copper electrode is +0.34V, that of aluminium is

Answer»

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

ANSWER :B


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