NEETChemistryCoordination Compounds
Using crystal field theory, choose the correct option regarding the electronic configuration of the central metal atom/ion, and determine the magnetic moment value in the following: [FeF 6 ] 3– , [Fe(H 2 O) 6 ] 2+ , [Fe(CN) 6 ] 4–
Options
- A[FeF 6 ] 3– : High spin, 1 unpaired electron, magnetic moment = 1.73 BM
- B[Fe(H 2 O) 6 ] 2+ : Low spin, 4 unpaired electrons, magnetic moment = 4.90 BM
- C[Fe(CN) 6 ] 4– : Low spin, 0 unpaired electrons, magnetic moment = 0 BM
- D[FeF 6 ] 3– : Low spin, 1 unpaired electron, magnetic moment = 1.73 BM
Correct answer
B. [Fe(H 2 O) 6 ] 2+ : Low spin, 4 unpaired electrons, magnetic moment = 4.90 BM
Step-by-step solution
Correct Option is : (B) [Fe(H 2 O) 6 ] 2+ : Low spin, 4 unpaired electrons, magnetic moment = 4.90 BM