Answer: Deltao exceeds the pairing energy P.
- A the pairing energy P exceeds Deltao
- B Deltao exceeds the pairing energy P
- C the ligand is a weak field ligand
- D the metal ion is in a low oxidation state
Correct answer: B. Deltao exceeds the pairing energy P
Explanation: When the crystal field splitting Deltao is greater than the pairing energy P (strong field ligands), electrons pair in t2g rather than occupy eg, giving a low-spin complex.
The three common coordination geometries: octahedral (6 ligands), tetrahedral (4 ligands), and square planar (4 ligands in one plane).
Concept context
Study of compounds where a central metal atom is bonded to surrounding ligands. Covers nomenclature, types of isomerism, bonding theories (VBT, CFT), and applications in medicine, photography, and industry.