NEET 2026
- Exam
- NEET
- Year
- 2026
- Subject
- Chemistry
- Chapter
- Chapter
NEET 2026 · Chemistry · Chapter
Ethylenediaminetetraacetate ( EDTA^ 4- ) is a widely used ligand in...
Ethylenediaminetetraacetate () is a widely used ligand in coordination chemistry. Which of the following correctly describes its denticity and the nature of its donor atoms?
Options
- AHexadentate; two nitrogen and four oxygen donor atoms
- BHexadentate; four nitrogen and two oxygen donor atoms
- CTetradentate; two nitrogen and two oxygen donor atoms
- DTetradentate; four oxygen donor atoms
Correct answer
A. Hexadentate; two nitrogen and four oxygen donor atoms
Step-by-step solution
Ethylenediaminetetraacetate () is a hexadentate ligand.
Its chemical structure is .
It coordinates to a central metal ion through six donor atoms: two nitrogen atoms (each having a lone pair of electrons) and four oxygen atoms (from the four acetate groups).
Answer: Hexadentate; two nitrogen and four oxygen donor atoms
Its chemical structure is .
It coordinates to a central metal ion through six donor atoms: two nitrogen atoms (each having a lone pair of electrons) and four oxygen atoms (from the four acetate groups).
Answer: Hexadentate; two nitrogen and four oxygen donor atoms