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The oxidation potentials of Zn, Cu, Ag, ...

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 ?

A

(a) `Zn + Cu ^(2+) to Cu + Zn ^(2+)`

B

(b) `Zn + 2 Ag ^(+) to 2 Ag + Zn ^(2+)`

C

(c) `H _(2) + Cu ^(2+) to 2 H ^(+) + Cu`

D

(d) `H _(2) + Ni ^(2+) to 2 H ^(+) + Ni`

Text Solution

Verified by Experts

The correct Answer is:
B
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