How would you account for the following : With the same d-orbital c

1.	How would you account for the following : With the same d-orbital configuration (da) C2+ is a reducing agent while Mn3+ is an oxidizing agent?
Answer» Cr (24) = 3d⁵4s¹ Configuration . of Cr⁺³= 3d⁴ As Cr⁺³ has stable t³_2g configuration so Cr⁺² has a tendency to change to Cr⁺³ hence it is a reducing agent. Mn (25) =3d⁵4s² Mn⁺³ = 3d⁴ Mn⁺³ changes to Mn⁺³ (3d)⁵ which is half filled state configuration. Hence Mn⁺³ acts as oxidising agent.

How would you account for the following : With the same d-orbital configuration (da) C2+ is a reducing agent while Mn3+ is an oxidizing agent?

Answer»

Cr (24) = 3d⁵4s¹

Configuration . of Cr⁺³= 3d⁴

As Cr⁺³ has stable t³_2g configuration so Cr⁺² has a tendency to change to Cr⁺³ hence it is a reducing agent.

Mn (25) =3d⁵4s²

Mn⁺³ = 3d⁴

Mn⁺³ changes to Mn⁺³ (3d)⁵ which is half filled state configuration. Hence Mn⁺³ acts as oxidising agent.