Multiple choice

There are three examples of separation of substances given above. Which of these three illustrations have followed the method of sedimentation to finally separate the substances?

Directions: Read the given statements carefully and answer the question that follows.

A. The steam that forms on boiling water turns back into water when it comes in contact with a cold metal lid.
B. The grains with dried husk and chaff, are separated and thrown away before the wheat can be used.
C. After a mixture of oil and water is separated, the water left behind can be further cleaned. After this it is further separated, and hence dirt will sift out, leaving the water clean.

  1. A

  2. B

  3. C

  4. All of them

  5. None of them
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Correct. Example A is condensation. Example B is winnowing. Example C is filtration. Thus neither of the examples have used the method of sedimentation. So, none of them is the correct answer.

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