Question

Give the difference between double salts and coordination compounds.

Answer 1

Double Salt: 

1. A double salt is’ a compound prepared by the combination of two different salt components. 

2. Completely dissociate into its ions in water. 

3. Give simple ions when added to water. 

4. It can be easily analyzed by determining the ions present in the aqueous solution.

Example : Potash alum K₂SO₄ . Al₂(SO₄)₃ . 24H₂O

Coordination compounds (Complex salt): 

1. A complex salt is a compound composed of a central metal atom having coordination bonds with ligands around it. 

2. Do not completely dissociate into its ions in water. 

3. Do not give simple ions. 

4. It cannot be easily analyzed by determining the ions in the aqueous solution.

Example: Potassium ferro cyanide e K₄[Fe(CN)₆]