Give three reasons for the need to separate substance
Answers
Answer:
There are three main reasons why we need to separate mixtures.They are:
1) To remove unwanted particles
*A bhel is a mixture of various ingredients like onion, tomato, potato, chillies, etc. Someone who does not like spicy food will remove the chillies to prevent mouth burn. Therefore, separation is necessary to remove the chillies from food.
*Your mother always removes stones from rice before she cooks. Because stones are not wanted. Separation is necessary to remove the stones.
2) To obtain important substances
*Some substances are more important than others in a mixture.Therefore, these need to be obtained by separation of substances.
*We all love butter. We spread it on a bread and eat it. It is used it for cooking. Butter is prepared from milk.The milk is churned at a high speed which creates a froth up. This froth is actually butter. The oil droplets are collected. Thus butter is separated from milk.
3) To obtain pure substances
*A mixture is actually made up of pure substances only. But they get mixed with each other in a mixture. Sometimes the individual pure substances are more important than the mixture. For example, Saltwater is not very important to us. But salt and water individually are very useful to us. 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.