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NCERT Class XII Chemistry
Chapter - Coordination Compounds
Questions with Solutions

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Question : 4
Total: 43
What is meant by unidentate, bidentate and ambidentate ligands? Give two examples for each.
Solution:  
Unidentate ligands are those which bind to the metal ion through asingle donor atom. e.g., Cl–,H2O.Bidentate ligands are those which bind to the metal ion through two donoratoms. e.g., ethane-1,2-diamine(H2NCH2CH2NH2), oxalate (C2O42–) ion.
Ambidentate ligands are those which can bind to metal ion through twodifferent donor atoms. e.g., NO2–and SCN–ion.
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