Topic: Werner's theory, ligands, coordination number, denticity, chelation· Coordination Compounds

Ethylene diaminetetraacetate (EDTA) ion is :

1. Hexadentate ligand with four "O" and two "N" donor atoms

2. Unidentate ligand

3. Bidentate ligand with two "N" donor atoms

4. Tridentate ligand with three "N" donor atoms

Doubtly Asked 30 Oct 2026 NEET UG 2021 Practice test neet Save WhatsApp Report

1 answer

Best answer

Answer: 1. Hexadentate ligand with four "O" and two "N" donor atoms

Key idea: EDTA\(^{4-}\) is a hexadentate ligand.

It has two nitrogen donor atoms (amine) and four oxygen donor atoms (from four carboxylate groups), so it binds a metal at six positions. Options 2, 3 and 4 give the wrong denticity.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

Was this answer helpful?

Ethylene diaminetetraacetate (EDTA) ion is :

1 answer

Your answer