Class 6 Science Chapter 5 MCQ

Class 6 Science Chapter 5 MCQ (Multiple Choice Questions) of Separation of Substances. These MCQ tests are prepared taking questions from NCERT Textbook of Class 6 Science Chapter 5 and Exemplar books.

All the Objective questions are explained well with proper answer and giving reason behind the answers.

Class 6 Science Chapter 5 MCQ for 2021-2022

Class: 6Science
Contents:Multiple Choice Questions – MCQ Tests

Class 6 Science Chapter 5 MCQ with Answers

Class 6 Science Chapter 5 MCQ with answers and explanation are given below. These sets of MCQs are the collection of Objective Questions from Class 6 Science Chapter 5. Practice these questions to buildup confidence and score good marks in tests.


Paheli is writing some statements. She wants to know in which of the following statements is or are correct?

[A]. A mixture of wheat grains and wheat flour can be separated by sieving.
[B]. A mixture of oil and water can be separated by decantaion.
[C]. In winnowing, process the husk particles are carried away by the wind to a greater distance.
[D]. All the above

During summer, Boojho carries water in a transparent plastic bottle to his school. One day, he left his bottle in this school. The bottle still had some water left in it. The next day, he observed some water droplets on the inner surface of the empty portion of the bottle. These droplets of water were formed due to:

[A]. Boiling and condensation
[B]. Evaporation and saturation
[C]. Evaporation and condensation
[D]. Condensation and saturation


You might have observed the preparation of ghee from butter and cream at home. Which method(s) can be used to separate ghee from the residue?

[A]. Evaporation and decantation
[B]. Decantation and filtration
[C]. Decantation and churning
[D]. Only churning

Consider the given statement and choose the correct one:

[A]. A mixture can be solid, liquid or gas.
[B]. Most of the things which we use in our day to day life mixture.
[C]. A mixture is made of two or more pure substances.
[D]. All the above.

A transparent bottle, half filled with water is left outside in sun for a few hours. After some time, some water droplets are observed on the inner upper surface of the bottle. Which processes do you think, are the cause of these droplets?

[A]. Condensation and saturation
[B]. Boiling and condensation
[C]. Evaporation and condensation
[D]. Evaporation and saturation

Boojho has a mixture of iron nails, salt, oil and water. He is trying to separate each one. Consider the statements which is or are correct and help him?

[A]. Hand picking is the method to use to separate iron nails from the mixture.
[B]. Decantation is the method where the mixture is allowed to stand for some time. The clear liquid is poured to another container to separate oil from the mixture.
[C]. Evaporation is the method where remaining liquid is allowed to evaporate till residue is obtained. This residue is salt.
[D]. All the above


If the saturated solution of a substance at a particular temperature is cooled to a lower temperature, then the solubility of substances:

[A]. Increase
[B]. Decrease
[C]. Remains same
[D]. Little bit increase

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

[A]. Oil in Water
[B]. Cornflakes in milk
[C]. Salt in water
[D]. Sugar in milk

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?

[A]. Filtration
[B]. Decantation
[C]. Churning
[D]. Winnowing

Consider the following statements and choose the incorrect one:

[A]. Filtration is used for separating insoluble substances from a liquid.
[B]. A mixture of chalk and water is separated by filtration.
[C]. Filtration can remove any solid substances which are dissolved in a liquid.
[D]. A mixture of sand and water can also be separated by filtration.
More Questions for practice
    1. What do you mean by classification?
    2. Name two natural materials and two man-made materials.
    3. What is a magnetic material?
    4. Name four substances which flow or sink in water.
    5. Give two examples of each of the following—transparent, translucent and opaque.
    6. Name two good conductors and two bad conductors.

What are soluble substances?

Substances like sugar and common salt dissolve completely in water. They are called soluble substances.

What do you understand by metallic lustre?

Metals like silver and gold have bright metallic luster because when light falls on the surface of these metals, the surface gives a shining appearance which is known as metallic lustre.

What are insoluble substances?

Certain substances which do not dissolve in water are called insoluble substances.

Which type of substances are called transparent substances?

Object which allows light to pass through it completely is called transparent. Example: glass, air.