Question

what is meant by crystal field theory

Answer 1

Crystal field theory is a theory that describes the breaking of the degeneracy of electronic orbitals (that is, their energy levels are not longer identical) that occurs in transition metal coordination complexes, most often as a consequence of the presence of ligands. The theory is able to explain some magnetic and optical properties, in particular the colours, of such complexes.
HOPE IT HELPS AND PLZ MARK IT AS BRAINLIEST AND FOLLOW ME