EDTA is a:
AMonodentate
BTetradentate
CBidentate
DHexadentate (4 oxygens + 2 nitrogens)
Answer & Solution
Correct answer: D. Hexadentate (4 oxygens + 2 nitrogens)
EDTA (ethylenediaminetetraacetate) is hexadentate: 4 O atoms (from carboxylate) + 2 N atoms. Forms very stable 1:1 complexes with most metals (Ca²⁺, Fe³⁺, etc.). Used in water softening, chelation therapy.
Related questions
Which of the following is TRUE about a double salt vs a complex?The correct IUPAC name of [NiCl₂(PPh₃)₂] isThe coordination sphere of K₄[Fe(CN)₆] isThe correct order of ligand denticity, from smallest to largest, isChelate complexes tend to be more stable than similar complexes with unidentate ligands. TThe primary and secondary valences of Co in [Co(NH₃)₆]Cl₃ are respectivelyWhich of the following is a homoleptic complex?Which coordination polyhedron does [Ni(CO)₄] adopt?