NCERT Class VI Science Solutions: Chapter 5 – Separation of Substances Part 1 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 1:

Paheli bought some vegetables such as French beans. Lady՚s finger, green chilies, brinjals and potatoes all mixed in a bag. Which of the following methods of separation would be most appropriate for her to separate them?

  1. Winn owing
  2. Sieving
  3. Threshing
  4. Hand picking

Answer: D

Question 2:

Boojho՚s grandmother is suffering from diabetes. Her doctor advised her to take ‘Lassi’ with less fat content. Which of the following methods would be most appropriate for Boojho to prepare it?

  1. Filtration
  2. Decantation
  3. Churning
  4. Winnowing

Answer: C


Question 3:

Which of the following mixtures would you be able to separate using the method of filtration?

  1. Oil in water.
  2. Cornflakes in milk.
  3. Salt in water.
  4. Sugar in milk.

Answer: B

Question 4:

Which amongst the following methods would be most appropriate to separate grains from bundles of stalks?

  1. Hand picking.
  2. Winnowing.
  3. Sieving.
  4. Threshing.

Answer: D


Question 5:

Four mixtures are given below.

  1. Kidney beans and chick peas.
  2. Pulses and rice.
  3. Rice flakes and corn.
  4. Potato wafers and biscuits.

Which of these can be separated by the method of winnowing?

  1. (i) and (ii)
  2. (ii) and (iii)
  3. (i) and (iii)
  4. (iii) and (iv)

Answer: D

Question 6:

While preparing chapati, Paheli found that the hour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?

  1. Threshing
  2. Sieving
  3. Winnowing
  4. Filtration

Answer: B


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