Ligands
Easychemistry
Which of the following is a bidentate ligand?
Select the correct option:
Solution
Incorrect! Answer:
en (ethylenediamine)
Denticity refers to the number of donor atoms a single ligand uses to bond to a metal.
- Monodentate: Bonds via 1 atom (NH3,Cl−).
- Bidentate: Bonds via 2 atoms. Ethylenediamine (NH2−CH2−CH2−NH2, abbreviated as en) has two nitrogen donor atoms. Another example is Oxalate (C2O42−).
- Hexadentate: Bonds via 6 atoms. EDTA⁴⁻ (Ethylenediaminetetraacetate) is the most common example.
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About This Question
- Subject
- chemistry
- Chapter
- coordination compounds
- Topic
- ligands
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
en (ethylenediamine)
Denticity refers to the number of donor atoms a single ligand uses to bond to a metal.
- Monodentate: Bonds via 1 atom (NH3,Cl−).
- Bidentate: Bonds via 2 atoms. Ethylenediamine (NH2−CH2−CH2−NH2, abbreviated as en) has two nitrogen donor atoms. Another example is Oxalate (C2O42−).
- Hexadentate: Bonds via 6 atoms. EDTA⁴⁻ (Ethylenediaminetetraacetate) is the most common example.
This easy difficulty chemistry question is from the chapter coordination compounds, covering the topic of ligands. It appeared in the 2025 exam.
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