Q71P - Chemistry: Molecular Nature Of Matter And Change

Question

Which of these ligands can participate in linkage isomerism?

1. ${\mathbf{\text{NO}}}_{\mathbf{2}}^{\mathbf{-}}$
   
2. ${\mathbf{\text{SO}}}_{\mathbf{2}}$
   
3. ${\mathbf{\text{NO}}}_{\mathbf{3}}^{\mathbf{-}}$
   

 Explain with Lewis structures.

Step-by-Step Solution

Answer

According to the Lewis structure ${\mathrm{NO}}_2^{-}$and ${\mathrm{SO}}_2$can participates in linkage isomerism, while ${\mathrm{NO}}_3^{-}$cannot participate in linkage isomerism.

Step 1: Concept Used: Lewis Concept

Linkage isomers appear when the structure of the complex ion is the same, but the donor atom which the ligand uses is different.

 

Step 2: Lewis structure explanation for NO - 2

 NO^-₂ can take part in linkage isomerism

Step 3: Lewis structure explanation for SO 2

SO₂ can take part in linkage isomerism.

Step 4: Lewis structure explanation for NO - 3

NO^-₃ cannot take part in linkage isomerism.