Answer: Extra stability of complexes formed with polydentate ligands due to increased entropy.
- A Extra stability of complexes formed with polydentate ligands due to increased entropy
- B The particular colour displayed by a coordination complex once it forms
- C A general magnetic property uniformly shown by every chelated complex
- D Simply the total count of separate ligand molecules attached to the central metal
Correct answer: A. Extra stability of complexes formed with polydentate ligands due to increased entropy
Explanation: Chelation of polydentate ligands releases more solvent molecules per ligand than monodentate ligands, greatly increasing entropy and stability.
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.