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The more positive the value of E^(θ), th...

The more positive the value of `E^(θ)`, the greater is the trendency of the species to get reduced. Using the standard electrode potential of redox coples given below find out which of the following is the strongest oxidising agent.
`E^(θ)` values: `Fe^(3+)//Fe^(2+) = +0.77`
`I_(2)(s)//I^(-) = +0.54`,
`Cu^(2+)//Cu = +0.34, Ag^(+)//A = 0.80V`

A

`Fe^(3+)`

B

`I_(2)(s)`

C

`Cu^(2+)`

D

`Ag^(+)`

Text Solution

Verified by Experts

The correct Answer is:
d
Given that, `E^(@)` values of
`Fe^(3+)//Fe^(2+)=+0.77V`
`I_(2)(s)//I^(-)=+0.54V`
`Cu^(2+)//Cu=+0.34V`
`Ag^(+)//Ag=+0.80V`
Since, `E^(@)` of the redox couple `Ag^(+)//Ag` is the most positive, i.e., 0.80V, therefore, `Ag^(+)` is the strongest oxidising agent.
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