Question

Which of the following is/are true for crystal field theory?

• A. Under the influence of an octahedral field, energy of $e_g$ orbitals is more than $t_{2g}$ orbitals.
• B. Under the influence of tetrahedral field, energy of $e_g$ orbitals is more than $t_{2g}$ orbitals.
• C. When ligands are weak $({\Delta }_0<P)$
  ${\Delta }_0$ = Crystal field splitting energy and
  P = pairing energy.
• D. When ligands are strong $({\Delta }_0>P)$
  

Answer 1

Answer: (A), (C), (D)

The correct options are
A Under the influence of an octahedral field, energy of $e_g$ orbitals is more than $t_{2g}$ orbitals.
C When ligands are weak $({\Delta }_0<P)$
${\Delta }_0$ = Crystal field splitting energy and
P = pairing energy.
D When ligands are strong $({\Delta }_0>P)$


According to crystal field theory