Question

Low spin tetrahedral complexes are not formed because

• A. For tetrahedral complexes the CFSE is lower than pairing energy
• B. For tetrahedral complexes, the CFSE of higher than pairing energy
• C. Electrons do not go to $e_{g}$in case of tetrahedral complexes
• D. Tetrahedral complexes are formed by weak filed ligands only.

Answer 1

Answer: (A)

For tetrahedral complexes the CFSE is lower than pairing energy

Answer 2

Crystal field stabilizations energy for tetrahedral complexes is less than pairing energy hence they do not pair up to form low spin complexes.