Aluminium displaces hydrogen from acids, but copper does not. A Galvanic cell prepared by…
Chemistry · NEET · NTA Exams — Electrochemistry
Aluminium displaces hydrogen from acids, but copper does not. A Galvanic cell prepared by combining Cu/Cu2+ and Al/Al3+ has an emf of 2.0 V at 298 K. If the potential of copper electrode is + 0.34 V, that of aluminium electrode is:
- - 2.3 V
- + 2.34 V
- - 1.66 V
- + 1.66 V
Answer
(C) - 1.66 V
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