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The standard oxidation potential E^@ for...

The standard oxidation potential `E^@` for the half cell reaction are
`Zn rarr Zn^(2+) + 2e^-`
`E^@=+ 0.76 V `
`Fe rarr Fe^(2+) + 2e^-`
`E^@=+ 0.41 V `
EMF of the cell rection is `Zn+Fe^(2+) rarr Zn^(2+)+Fe `

A

`-0.35` V

B

`+0.35` V

C

`+1.17` V

D

`-0.17` V

Text Solution

Verified by Experts

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