Question

The complexes $\left[ {Cr{{\left( {N{H_3}} \right)}_6}} \right]\left[ {Co{{\left( {CN} \right)}_6}} \right]$ and $\left[ {Co{{\left( {N{H_3}} \right)}_6}} \right]\left[ {Cr{{\left( {CN} \right)}_6}} \right]$ are not the examples of:
A.Geometrical isomers
B.Optical isomers
C.Coordination isomers
D.Linkage isomers

Answer 1

Hint:This question gives the knowledge about the isomers. The compounds consisting of the same molecular formulas but containing different structures are isomers. Isomers play an important role in air pollution chemistry.

Complete step by step answer:
The molecular formula is the representation of chemical compounds. It comprises the chemical symbols for the elements tailed by the numeric subscripts labelling the atoms of each element present in a molecule.
Consider the coordination complexes, $\left[ {Cr{{\left( {N{H_3}} \right)}_6}} \right]\left[ {Co{{\left( {CN} \right)}_6}} \right]$ and $\left[ {Co{{\left( {N{H_3}} \right)}_6}} \right]\left[ {Cr{{\left( {CN} \right)}_6}} \right]$
In these two complexes the only one difference is there that the ligands are interchanging between the complexes. The cations and anions entities are changing among the coordination complexes. This is a coordination isomerism.
Therefore, option $3$ is the correct option.

Additional information: The compounds consisting of the same molecular formulas but containing different structures are known as isomers. Isomers play a crucial role in air pollution chemistry, as even a little change in the structure can cause very dramatic change in chemical and physical properties.
There are two types of isomers. Types of isomers are as follows:
$1$. Structural isomerism
$2$. Stereoisomerism
Structural isomerism is also known as constitutional isomerism in which the difference occurs only in the position of bonds.
Stereoisomerism is also known as spatial isomerism in which the difference only occurs in the positions of atoms.

Note:
Always remember that isomers play an important role in air pollution chemistry. Isomers play a crucial role in air pollution chemistry, as even a little change in the structure can cause very dramatic change in chemical and physical properties.