Question

A mixture of ammonium chloride and sand can be separated by​
_______.

• A. chromatography​
• B. distillation​
• C. sublimation
• D. centrifugation

Answer 1

The correct option is C sublimation

Chromatography: Separating components based on their solubility in a particular solvent​

Distillation: Separating miscible liquids which differ by more than 25 K in their boiling points​

Sublimation: Separating components based on volatility​

Centrifugation: Separating solid components from a mixture based on their density.

Ammoium chloride: Volatile​

Sand: Non-volatile​

So, sublimation should be used to separate the mixture components.​