1.

On the basis of valence bond theory, explain geometry, nature of hybridisation, magnetic property and optical isomerism of [Co(o x)_(3)]^(3-) and [CoF_(6)]^(3-).

Answer»

SOLUTION :`[CO(o x)_(3)]^(3-)`: Geometry = octahedral, Hybridisation = `sp^(3)d^(2)`, Magnetic properties = PARAMAGNETIC. Two optical isomers
`[CoF_(6)]^(3-)` : Geometry = octahedral, Hybridisation = `sp^(3)d^(2)`, Magnetic properties = paramagnetic. No optical isomerism


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