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The standard oxidation potential E^(@) ...

The standard oxidation potential `E^(@)` for the half cell reactions are
`Zn rarrZn^(2+)+2e^(-):E^(@)=+0.76V`
`FerarrFe^(2+)+2e^(-)"E^(@)=+0.41V`
EMF of the cell reaction
`Fe^(2+)+ZnrarrZn^(2+)+Fe` will be

A

`-0.35 V`

B

`+0.35 V`

C

`+1.17 V`

D

`-1.17 V`

Text Solution

Verified by Experts

The correct Answer is:
B
`E_("cell")^(0)=underset("Zn")(E_("ox")^(0)) - underset("Fe")(E_("ox")^(0)) =0.76-0.41=0.35 V`
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