When (n-1) d-orbitals are involved in hybridisation then which of the following complexes are formed?

Outer orbital complexes Inner orbital complexes Double salt None of these

Inner orbital complexes

If d-orbitals are involved in hybridisation that may be either inner viz (n-1) d-orbitals or the outer viz (n) d-orbitals. The complexes so formed by these two ways are known as inner orbital and outer orbital complexes.