The oxidation potentials of Zn, Cu, Ag, `H_(2)` and Ni are 0.76, -0.34, 0.80, 0 and 0.25
Channel: Doubtnut
Date: 2020-03-29

The oxidation potentials of Zn, Cu, Ag, `H_(2)` and Ni are 0.76, -0.34, 0.80, 0 and 0.25 volt respectively. Which of the following reactions will provide maximum voltage ?