Question:

Which of the following represents a chelating ligand?

Updated On: Jul 12, 2022
  • H2O {{H}_{2}}O
  • Cl C{{l}^{-}}
  • OH O{{H}^{-}}
  • DMG DMG
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The Correct Option is D

Solution and Explanation

DMG is a polydentate digand which binds the central atom nickel forming a ring like structure.
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Concepts Used:

Coordination Compounds

A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.

Coordination entity:

A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.

Ligands:

A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.