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 isA. `Cr^(3+)`B. `Cl^(-)`C. `Cr`D. `Mn^(2+)`

Given `E_(Cl_(2)//Cl^(-))^(@)=1.36V,E_(Cr^(3+)//Cr)^(@)=-0.74V` `E_(Cr

1.	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 isA. `Cr^(3+)`B. `Cl^(-)`C. `Cr`D. `Mn^(2+)`
Answer» Correct Answer - C Greater the standard oxidation potential (or lesser is the standard reduction potential), more easily the substance is oxidized and hence stronger is the reducing is oxidized and hence stronger is the reducing agent. As `E_(Cr^(+3)//Cr)^(@)` (i.e., standard reduction potential) is lowest, hence, Cr will be strongest reducing agent.

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