Question:medium

Ligand EDTA\(^{4-}\) is an example of a:

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EDTA forms octahedral complexes with many transition metals, stabilizing them against hydrolysis.
Updated On: Feb 24, 2026
  • Monodentate ligand
  • Didentate ligand
  • Tridentate ligand
  • Polydentate ligand
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The Correct Option is D

Solution and Explanation

EDTA\(^{4-}\) (Ethylenediaminetetraacetate), a hexadentate ligand, coordinates to metal ions via six donor atoms: four from carboxyl oxygen atoms and two from amine nitrogen atoms. This coordination capability enables EDTA to form exceptionally stable chelate complexes, establishing it as a potent chelating agent. Its applications are extensive, including water treatment for metal impurity removal, medical uses such as chelating excess metal ions in poisoning cases, and analytical chemistry for complexometric titrations.
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