Question

Why do we need to separate mixtures? Give an example to illustrate your answer.

Answer 1

by using many methods like distillation, fractional distillation etc.

Answer 2

Different components of a mixture are separated in order to either separate the unrequired components from a mixture or sometimes, to separate more than one useful components from a mixture. For example, grain purchased from shops can contain several impurities such as pieces of stone, husk, broken grains, etc.