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Question: Answered & Verified by Expert
A group of atoms can function as a ligand only when
ChemistryCoordination CompoundsKCETKCET 2013
Options:
  • A it is a small molecule
  • B it has an unshared electron pair
  • C it is a negatively charged ion
  • D it is a positively charge ion
Solution:
1399 Upvotes Verified Answer
The correct answer is: it has an unshared electron pair
The donor atoms molecules or anions which donate a pair of electrons to the central metal atom or ion and form a coordinate bond with it are called ligands. Ligands are electron pair donors so they are Lewis bases.

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