Hence, we need to separate both from each other. Thus, separation of substances is necessary to obtain pure substances for domestic purposes, industrial purposes and research work. Even the example used earlier of gases present in air is also an example of obtaining pure substances.

I HOPE ITS HELP THANKS AND I GOT A BRAINLIEST TO MY ANSWER.

Answer:

It is important to be able to separate mixtures to obtain a desired components from mixture and to be able to better understand how each component to be done. We need to know the different methods of separating mixtures because it can help us knows how to do and make the different methods. Thus, separation of substances necessary to obtain pure substances for domestic purposes, industrial purposes and research work.