Answer: Two (from two donor atoms).
- A Two (from two donor atoms)
- B One, from a single donor atom on the ligand
- C Three, from three separate donor atoms on the ligand
- D Six, from six separate donor atoms on the ligand
Correct answer: A. Two (from two donor atoms)
Explanation: Bidentate ligands (e.g., ethylenediamine, oxalate) have two donor atoms and occupy two coordination positions.
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.