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The standard reduction potentials of Ag,...

The standard reduction potentials of Ag, Cu, Co and Zn are `0.799,0.337,-0.277,-0.762V` respectively. Which of the following cell will have maximum cell e.m.f?

A

`Zn | Zn^(+2)(1M) || Cu^(2+) (1 M) | Cu`

B

`Zn | Zn^(2+) (1M) || Ag^(+) (1M) | Ag`

C

`Cu | Cu^(2+)(1 M) || Ag^(+) (1 M) | Ag`

D

`Zn | Zn^(2+) (1 M) || Co^(2+)(1 M) | Co`

Text Solution

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The correct Answer is:
B
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