1.

Describe for any two of the following complex ions, the type of hybridisation, shape and magnetic property : [Co(NH_(3))_(6)]^(3+)

Answer»

Solution :`[Co(NH_(3))_(6)]^(3+)`
ELECTRONIC configuration of Co : [Ar] `4s^(2) 3d^(7)`
Electronic configuration of `Co^(3+) : [Ar] 4s^(0) 3d^(6)`
`NH_(3)` is strong field LIGAND. It will bring about pairing of electrons.
`[Co(NH_(3))_(6)]^(3+)` Electrons DONATED by the ligands
It has `d^(2)sp^(3)` hybridisation with octahedral shape. It is diamagnetic in nature due to absence of unpaired electrons.


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