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Given E(Cl(2)//Cl^(-))^(@)=1.36V,E(Cr^(3...

Given `E_(Cl_(2)//Cl^(-))^(@)=1.36V,E_(Cr^(3+)//Cr)^(@)=-0.74V`
`E_("Cr_(2)O_(7)^(2-)//Cr^(3+))^(@)=1.33V,E_(MnO_(4)^(-)//Mn^(2+))^(@)=1.51V`
Among the following, the strongest reducing agent is

A

Cr

B

`Mn^(2+)`

C

`Cr^(3+)`

D

`Cl^(-)`

Text Solution

Verified by Experts

The correct Answer is:
A
`E^(@)` for `Cr^(3+)|Cr` is minimum and therefore , it can be readily oxidised . Hence , it is a strongest reducing agent .
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Given E_("Cr_(2)O_(7)^(2-)//Cr^(3+))^(@)=1.33V,E_(MnO_(4)^(-)//Mn^(2+))^(@)=1.51V Among the following, the strongest reducing agent is E_(Cr^(3+)//Cr)^(@)=-0.74V^(x),E_(MnO_(4)^(-)//Mn^(2+))^(@)=1.51V E_(Cr_(2)O_(7)^(2-)//Cr^(3+))^(@)=1.33V,E_(Cl//Cl^(-))^(@)=1.36V Based on the data given above strongest oxidising agent will be

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