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Question

Why do we separate substances in a mixture?
i) To separate two different but useful components.
ii) To remove useless components.
iii) To remove impurities.


A

Only (i) and (ii) are correct

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B

Only (ii) and (iii) are correct

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C

Only (i) and (iii) are correct

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D

(i), (ii) and (iii), all are correct

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Solution

The correct option is D

(i), (ii) and (iii), all are correct


We separate substances in a mixture to obtain useful components, remove useless components and impurities.

Example: Seawater is rich in common salt which is an important ingredient of our food to add taste and nutrients. But seawater cannot be used directly. So, it is necessary to separate salt from seawater.


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