4. Mention the methods that can be used for the separation of the following mixtures:
(a) wheat, sugar and husk
(b) rice, gram and iron fillings
(C) sand, black gram (urad) and husk
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a) Seiving separation
b) magnetic separation
c) Winnowing separation
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Answer: Wheat and sugar can be separated by sieving as they have different sizes. (ii) Mixture of rice, gram and iron fillings. first separate iron using magnet then, rice and gram can be separated either by sieving or by hand-picking. (iii)Sand, black gram (urad) and husk can be separated by sieving
Explanation:
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