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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

`1.17 ` V

B

`0.35` V

C

`-1.17 V `

D

`-0.35` V

Text Solution

Verified by Experts

The correct Answer is:
B
Here oxidation potentials are given
`E_(cell)^(@) = E_("OX (LHS)")^(@) - E_("OX (RHS)")^(@)`
The cell is -
Anode (LHS) `to` Higher SOP
Cathode (RHS) `to` Lower SOP
`E_(cell)^(@) = 0.76 - 0.41 = 0.35 V `
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