Co NH 3 6 3 + and CoF 6 3 - are respectively known as:

Step-by-step solution

In the complex Co NH 3 6 3 + Ammonia is strong field ligand and electronic configuration of Co 3 + ⇒ 3 d 6 t 2 g 6 , e g 0 Hybridisation: d 2 sp 3 Pairing of electrons takes place due to the strong field ligand. Hence, it is inner orbital complex (spin paired complex). In the complex CoF 6 3 - fluoride is weak field ligand and electronic configuration of Co 3 + ⇒ 3 d 6 t 2 g 4 , e g 2 . Hybridisation: sp 3 d 2 Pairing of electrons not takes place due to the weak field ligand. Hence, it is outer orbital complex (spi