EDTA⁴⁻ acts as which type of ligand when fully coordinated to a metal …

Question

EDTA⁴⁻ acts as which type of ligand when fully coordinated to a metal ion?

Accepted Answer

C. {'text': 'Hexadentate', 'label': 'C'}

1. NCERT calls EDTA⁴⁻ an important hexadentate ligand.
2. It binds through two nitrogen atoms and four oxygen (carboxylate) atoms.
3. All six donor atoms bond simultaneously to one central metal.
4. This chelate structure gives EDTA complexes high stability.
_Source: NCERT Class 12 Chemistry, Unit 5 "Coordination Compounds", §5.2(c)_

Answer

{'text': 'Unidentate', 'label': 'A'}

Answer

{'text': 'Bidentate', 'label': 'B'}

Answer

{'text': 'Tetradentate', 'label': 'D'}