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The standard reducation potential E^...

The standard reducation potential `E^@` for half reactions are
`Zn to Zn^(2+) + 2e^(- , E^@ =- 0.76 V `
` Fe to FE^(2 +) + 2e^(-) ,E^(@) =- 0.41V `
the EMF of the cell reaction
` Fe^(2+) +Zn to Zn^(2+) +Fe` is

A

`-0.35 `V

B

`+0.35V`

C

`+1.17 V`

D

`-1.17 V`

Text Solution

Verified by Experts

The correct Answer is:
B
`EMF = E^@ ` Cathode -`E^@ ""_("anode") = 0.41 - ( - 0.76 ) = 0.35 V `
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