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The oxidation ptentials of Zn, Cu, Ag, H...

The oxidation ptentials of `Zn, Cu, Ag, H_2` and Ni are `0.76, - 34, - 0.80 . 0. 00, 0. 25` volt, respectively. Which of the following reactions will provide maximum voltage ?

A

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

B

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

C

`H_(2) + Ci^(2+) rightarrow 2H^(+) + Cu`

D

`H^(2) + Ni^(2+) rightarrow 2H^(+) + Ni`

Text Solution

Verified by Experts

The correct Answer is:
B
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