Question:
Which of the following is a didentate ligand?
Which of the following is a didentate ligand?
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Oxalate ($ox$) and ethylenediamine ($en$) are classic bidentate ligands.
Updated On: Apr 27, 2026
- Ethane-1, 2-diamine
- Chloro
- Cyanido
- Ammine
- EDTA
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The Correct Option is A
Solution and Explanation
Step 1: Concept
A didentate (bidentate) ligand has two donor atoms that can simultaneously bind to a metal ion.
Step 2: Meaning
Ligands like $Cl^-$, $CN^-$, and $NH_3$ are monodentate (one donor atom).
Step 3: Analysis
Ethane-1,2-diamine ($en$) has two Nitrogen donor atoms. EDTA is hexadentate.
Step 4: Conclusion
Hence, Ethane-1, 2-diamine is the didentate ligand.
Final Answer: (A)
A didentate (bidentate) ligand has two donor atoms that can simultaneously bind to a metal ion.
Step 2: Meaning
Ligands like $Cl^-$, $CN^-$, and $NH_3$ are monodentate (one donor atom).
Step 3: Analysis
Ethane-1,2-diamine ($en$) has two Nitrogen donor atoms. EDTA is hexadentate.
Step 4: Conclusion
Hence, Ethane-1, 2-diamine is the didentate ligand.
Final Answer: (A)
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