Question:

The following is a coordination compound of iron

Updated On: Jun 20, 2022
  • chlorophyll
  • Mohrs salt
  • haemoglobin
  • vitamin $B_{12}$
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The Correct Option is C

Solution and Explanation

Haemoglobin, contains two part $vi z$, haem and globular protein. Haem part of haemoglobin contains one $Fe ^{2+}$ ion (iron) coordinated in a square planar array with the four N-atoms of a porphyrin molecule.
Chlorophyll is a coordination compound of $Mg$, vitamin $B _{12}$ is a coordination compound of Co while Mohr's salt is a double salt, not a coordination compound.
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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.