Assertion: According to crystal field theory, during complex formation, the d-orbitals split and form two sets of orbitals t2g and eg. Reason: Splitting of d- orbitals occurs only in case of strong field ligands.

Question

Assertion: According to crystal field theory, during complex formation, the d-orbitals split and form two sets of orbitals t2g and eg. Reason: Splitting of d- orbitals occurs only in case of strong field ligands. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false. (D) If both assertion and reason are false.

Tardigrade Admin · Accepted Answer

Splitting of orbitals takes place for both weak and strong field ligands. Pairing of electrons in these orbitals depends on the strength of the field.

Q. Assertion : According to crystal field theory, during complex formation, the d-orbitals split and form two sets of orbitals t2g​ and eg​. Reason : Splitting of d- orbitals occurs only in case of strong field ligands.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false.

If both assertion and reason are false.

Splitting of orbitals takes place for both weak and strong field ligands. Pairing of electrons in these orbitals depends on the strength of the field.

Q. Assertion : According to crystal field theory, during complex formation, the $d$ -orbitals split and form two sets of orbitals $t_{2 g}$ and $e_{g}$ .
Reason : Splitting of $d$ - orbitals occurs only in case of strong field ligands.