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

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1 Answers

Correct Answer - B
`E_("cell")^(@) = E_(OP_(Zn))^(@) - E_(OP_(Fe))^(@) = 0.76 - 0.41 = 0.35` V

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