Question

The correct order of $E_{M^{2+}/M}^o$ values with negative sign for the four successive elements $Cr,Mn,Fe$ and $Co$ is:

• A. Mn $>$ Fe $>$ Cr $>$ Co
• B. Cr $>$ Fe $>$ Mn $>$ Co
• C. Fe $>$ Mn $>$ Cr $>$ Co
• D. Cr $>$ Mn $>$ Fe $>$ Co

Answer 1

The correct option is A Mn $>$ Fe $>$ Cr $>$ Co