Abnormal colligative properties are observed only when the dissolved non-volatile solute in a given dilute solution

Step-by-step solution

Colligative properties depend on the number of solute particles in the solution. For a non-electrolyte, the number of particles remains the same as the number of molecules dissolved, leading to normal colligative properties. Abnormal colligative properties arise when the solute undergoes association or dissociation in the solvent. Association decreases the total number of particles, while dissociation increases the total number of particles compared to the number of formula units added. This change in the number of