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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, -0.8-,0.00, 0.25` volt respectively. Which of the following reactions will provide maximum voltage:-

A

`Zn+Cu^(2+)toCu+Zn^(2+)`

B

`Zn+2Ag^(+)to2Ag+Zn^(2+)`

C

`H_(2)+Cu^(2+)to2H^(+)+Cu`

D

`H_(2)+Ni^(2+)to2H^(+)+Ni`

Text Solution

Verified by Experts

The correct Answer is:
B
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