answers to the Crystal Field Theory (CFT) MCQs

 

Here are the answers to the Crystal Field Theory (CFT) MCQs:

1. a) Point charges
2. b) t₂g and eg
3. b) Crystal field splitting energy
4. c) H₂O
5. b) Low spin complexes
6. a) eg orbitals have higher energy
7. a) Absorption of light and promotion of an electron
8. b) Between the ligands
9. c) CN⁻
10. a) Δ₀ > pairing energy
11. d) [CuCl₄]²⁻
12. a) The splitting energy and the arrangement of electrons
13. a) dz² and dx²–y²
14. b) [FeF₆]³⁻
15. b) Half of the octahedral splitting energy (Δ₀)
16. a) dsp²
17. b) High spin due to weak field ligands
18. a) They have no unpaired electrons
19. b) 4
20. b) Minimum electron pairing

These answers are based on the key concepts of Crystal Field Theory as covered in the NCERT Class 12 Chemistry textbook.