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Aluminium displaces hydrogen from acids ...

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 aluminium electrode is:

A

`+1.66`V

B

`-1.66` V

C

`+2.34`V

D

`-2.3`V

Text Solution

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The correct Answer is:
C
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