What is the principle behind different separation techniques?

Different separation techniques are based on the idea that the components of a mixture have different physical properties. These differences allow us to separate them using suitable methods.

For example, methods like sieving and filtration work on the difference in particle size. Winnowing uses the difference in weight, where lighter particles are carried away by air. Sedimentation and decantation rely on differences in density, where heavier particles settle at the bottom.

Evaporation and condensation depend on differences in boiling points, while solubility is used in methods where one substance dissolves and another does not.

In simple terms, every separation technique works by using a specific property that makes one component behave differently from another, allowing them to be separated effectively.