Final answer:
Coordinate chromatography uses coordinate bonding. It involves a central metal atom or ion bonded to ligands through coordinate covalent bonds.
Step-by-step explanation:
Coordinate chromatography is a type of chromatography that uses coordinate bonding. In this technique, a central metal atom or ion is bonded to one or more ligands by coordinate covalent bonds. Ligands with more than one donor atom are called polydentate ligands and form chelates.