6. Write answers to the following questions in your own words. (a) How are the components of mixtures separated by simple methods ? (b) Which elements (metals and non- metals), compounds and mixtures do we use in our day-to-day life? (c) In everyday life, where and for what purpose do we use centrifugation? (d) Where are the methods of separation by distillation and by separating funnel used? Why?
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Explanation:
a) the components are separated by different methods it includes : Handpicking, threshing, winnowing, sieving etc..
b) mixtures we use are lemon and water, suhar and milk, salt and water etc..
compounds are NaCl, baking powder..
elements are aluminum, iron, copper, gold..
c) in daily life we use centrifugation for following purposes : 1) Chalk can be separated from water with the help of a centrifuge.
2) stabilization and clarification of wine.
3) The extraction of fat from milk in order to produce skimmed milk...
d) they are used in separation of liquid mixtures.
- distillation is to separate two miscible liquids.
- separation funnel to separate two immiscible liquid
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