Question:
What is meant by the chelate effect? Give an example.
Answer:
Upon the attachment of a ligand to a metal ion, it forms a ring-like structure and the metal- ligand association stable. This complex formation is called the chelate effect of the metal ion.
For example -
Ni2+ + NH3 → [Ni(NH3)]2+
[Ni(NH3)]2+ + NH3 → [Ni(NH3)2]2+
Overall Reaction Ni2+ + 2NH3 → [Ni(NH3)2]2+
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