Which of the following pairs of isomers is not correctly matched with its type of isomerism?
- $[Cr(NH_{3})_{6}] [Cr(CN)_{6}]$ and $[Cr(NH_{3} )_{4} (CN)_{2}] [Cr(NH_{3} )_{2}(CN)_{4}] -$ Coordination isomerism
- $[Co(NH_{3} )_{5}NO_{2} ]Cl_{2}$ and $[Co(NH_{3} )_{5}ONO]Cl_{2 } -$ Linkage isomerism
- $[Co(py)_{2}(H_{2}O)_{2}Cl_{2}]Cl$ and $[Co(py)_{2}(H_{2}O)Cl_{3}]H_{2}O-$ Coordination isomerism
- $[Pt(NH_{3} )_{4} Br_{2} ]Cl_{2}$ and $[Pt(NH_{3} )_{4} Cl_{2 }]Br_{2}-$ Ionisation isomerism
The Correct Option is C
Solution and Explanation
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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.