Using the data given below:
`E_(Cr_(2)O_(7)^(2-)|Cr^(3+))^(@)=1.33V E_(Cl_(2)|Cl^(-))^(@)=1.36V`
`E_(MnO_(4)^(-)|Mn^(2+))^(@)=1.51V E_(Cr^(3+)|Cr)=-0.74V`
Mark the strongest reducing agent.

Options

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

Answer

B

Explanation

The negative value of standard reduction potential for `Cr^(3+)` to Cr means that the redox couple is a stronger reduction agent.