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The standard reduction potential for Fe^...

The standard reduction potential for `Fe^(2+) //Fe` and `Sn^(2+) //Sn` electrodes are `-0.44` and `-0.14 ` volt respectively. For the given cell reaction `Fe^(2+) + Sn rarr Fe + Sn^(2+) `, the standard ` EMF` is.

A

`+0.30V`

B

`-0.58 V`

C

`+0.58V`

D

`-0.30V`

Text Solution

Verified by Experts

The correct Answer is:
D
`Fe^(2+)+SntoFe+Sn^(2+)`
`E^(@)=E_(red)^(@)(Fe) +E_(oxi)^(@)(Sn)`
`=-0.44+(0.14)`
`=-0.30V`
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