NEET2019ChemistryCoordination CompoundsActual
What is the correct electronic configuration of the central atom in K 4 F e C N 6 based on crystal field theroy?
Options
- At 2 g 4 e g 2
- Bt 2 g 6 e g 0
- Ce 3 t 2 3
- De 4 t 2 2
Correct answer
B. t 2 g 6 e g 0
Step-by-step solution
In the complex: K 4 F e C N 6 , F e exists as F e 2 + . Electronic configuration = A r 3 d 6 ∵ C N is a strong ligand, it will cause pairing up → ∴ Electronic configuration is t 2 g 6 e g 0