Why is distillation a purifying technique?

Distillation is a purifying technique because it separates components of a mixture based on their different boiling points. When a liquid mixture is heated, the component with the lower boiling point vaporizes first, allowing it to be collected and condensed back into liquid form, effectively removing impurities. This process can be repeated multiple times to enhance purity, making it an effective method for isolating desired substances from mixtures.