Question

Analyse the given scenarios and answer the questions.

(i) Sonam was trying to separate small stones from raw rice. While doing so, she

spilled flour into it. Suggest suitable method(s) of separation and give reasons for

your suggestion.

(ii) John was experimenting with muddy seawater to obtain salt. Which method(s) can

he use to obtain salt from it? Justify your answer.​

Answer 1

Answer:

1) Firstly she must winnow to separate the flour then she can use handpicking to separate the stones.

2)He must firstly sediment the mixture then after some time the muddy particles will settle down . After that he must decantate the water and separate the salt from it by crystallization or distillation.

Answer 2

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