Answer: Hexadentate (6 donor atoms).
- A Hexadentate (6 donor atoms)
- B Monodentate, donating through only a single atom
- C Bidentate, donating through exactly two atoms
- D Tridentate, donating through exactly three atoms
Correct answer: A. Hexadentate (6 donor atoms)
Explanation: EDTA (ethylenediaminetetraacetate) has 6 donor atoms (2 N + 4 O) and is a hexadentate ligand.
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.