NEET2008ChemistryCoordination CompoundsActual
Assertion : In high spin situation, configuration of (d^5 ) ions will be (t_ 2 g ^3 e_g^2 ) Reason : In high spin situation, pairing energy is less than crystal field energy.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false.
- DIf both assertion and reason are false.
Correct answer
C. If assertion is true but reason is false.
Step-by-step solution
In high spin situation, ₀ < P , in d^5 configuration, 4^ th and 5^ th electron are added to e_g rather than t_ 2 g . So configuration of d^5 ion will be t_ 2 g ^3 e_g^2 .