AP EAPCET 07-Jul-2022 Shift 2 Paper

In [Mn(0Cn)6]3− ,Mn is in +3 oxidation state
Mn3+(3d4) =
Mn3+ion‌in[Mn(Cn)6](3−) =
As CN−is a strong field ligand, it causes pairing of two 3d electrons, thereby making two d-orbitals vacant, namely dx2−y2 and dz2. These two
d-orbitals and one 4s and three 4p-orbitals hybridize and give d2sp3-hybridization.
In [Co(F)6]3−, Co is in +3 oxidation state.
Co=3d74s0
Co3+=3d74s0
As F−is a weak field ligand, so it cannot cause the pairing of unpaired 3d-electrons. Thus, one 4s, three 4p-orbitals and two 4d-orbitals hybridise and give sp3d2-hybridisation.