MCQ Types of Mixtures Chapter 2 Class 9 Science

MCQ’s For All Chapters – Science Class 9th

1. There will be total 25 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. Name the mixture whose particles are large enough to scatter light.

Colloid

True solutions

Homogeneous solution

All of the above

Question 1 of 25

2. What do you understand by the term concentrated solution?

Solution containing no solute

Solution with low solute concentration

Solution in which no more solute can be dissolved

Solution with high solute concentration

Question 2 of 25

3. Which phenomenon is observed when sunlight passes through the canopy of a dense forest?

Tyndall effect

Convergence of rays

Diffusion

Dispersion of light rays

Question 3 of 25

4. A solution in which no more solute can be dissolved at a given temperature is known as:

Unsaturated solution

True solution

Dilute solution

Saturated solution

Question 4 of 25

5. Automobile exhaust and smoke coming out from the vehicles and industries are the examples of which type of colloid?

Solid in liquid

Solid in gas

Solid in solid

Liquid in solid

Question 5 of 25

6. The components of a solution are:

Dispersed particles and solvent

Solute and solvent

Dispersed phase and dispersion medium

Solute and dispersed medium

Question 6 of 25

7. What type of mixture is obtained on continuous stirring when we add one spoon of sugar to water?

Homogeneous mixture

Colloid

Suspension

Heterogeneous mixture

Question 7 of 25

8. An example of a colloid is:

Sugar solution

Milk

Oxygen

Water

Question 8 of 25

9. Which of the following colloid is a gel?

Fog

Cheese

Milk

Smoke

Question 9 of 25

10. If a solution contains 60 g of common salt in 340 g of water, the mass by mass percentage will be:

25 %

15 %

20 %

17.6 %

Question 10 of 25

11. Most paints are:

Gels

Suspensions

Emulsions

Sols

Question 11 of 25

12. Name the solvent which is known as universal solvent.

Ethanol

Benzene

Vinegar

Water

Question 12 of 25

13. Which of the following statement is true for colloids?

Colloid is a homogeneous mixture.

Particles of a colloid can be seen by naked eye.

Particles of colloid scatter a beam of light passing through it.

All of these

Question 13 of 25

14. Which of the following statement is not true?

The solubility of gases in liquids decreases on increasing the temperature.

The solubility of solids in liquids remain unaffected by changes in pressure.

The solubility of solids in liquids increases on increasing the temperature.

The solubility of gases in liquids increases on increasing the temperature.

Question 14 of 25

15. Which of the following solutions show phenomenon of scattering of light (Tyndall effect)?

I and III

I, II, III

I and II

Question 15 of 25

16. 100 mL solution contains 3.5 g salt. The mass by volume percentage (m/v) of the solution is:

3.5 %

2.5 %

35 %

25 %

Question 16 of 25

17. A colloid with a solid dispersed phase and liquid dispersing medium is called:

Foam

Gel

Sol

Emulsion

Question 17 of 25

18. Which of the following will show Tyndall effect?

Clouds

Fog

Sugar solution

Both Clouds and Fog

Question 18 of 25

19. Which of the following statements is correct?

A solution is a homogeneous mixture.

A suspension is a homogeneous mixture.

In a solution, the substance present in lesser quantity is called solvent.

In a solution, the substance present in greater quantity is called solute.

Question 19 of 25

20. Name the mixture whose particles are big enough to be seen with naked eye.

Homogeneous mixture

True solution

Colloidal solution

Suspension

Question 20 of 25

21. ASSERTION-SODIUM CHLORIDE is always existed in mixture form.

REASON-Substance which made up of more than one constituent called mixture.