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 isA. `+1.66V`B. `-1.66V`C. `+2.34V`D. `-2.3V`

Aluminium displaces hydrogen from acids but copper does not. A galvani

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 isA. `+1.66V`B. `-1.66V`C. `+2.34V`D. `-2.3V`
Answer» Correct Answer - B

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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 isA. `+1.66V`B. `-1.66V`C. `+2.34V`D. `-2.3V`

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