Q72P - Chemistry: Molecular Nature Of Matter And Change

Question

Which of these ligands can participate in linkage isomerism?

(a) SCN^-

(b)S₂O₃^2- (thiosulfate)

(c) HS^-

 

 Explain with Lewis structures.

Step-by-Step Solution

Answer

According to the Lewis theory HCN^- and S₂O₃^2- can participate in linkage isomerism, while HS^- cannot participate in linkage isomerism.

Step 1: Concept Used – Lewis Theory and Linkage Isomerism

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 SCN -

SCN^- can take part in linkage isomerism.

 

Step 3: Lewis Structure explanation for S 2 O 3 2-

S₂O₃^2- can take part in linkage isomerism.

 

Step 4: Lewis structure explanation for HS -

HS^- can’t take part in linkage isomerism.