Chapter 1 of class 9 science as per the NCERT syllabus is Matter In Our Surroundings which deals with the Physical Nature of Matter, Characteristics of Particles of Matter, States of Matter, Can Matter Change its State?, Evaporation, etc.
Here, we have discussed 30 Multiple Choice Questions based on these topics of the chapter. These questions will help you to learn more about the chapter and test your knowledge and preparation level.
For each question below, there are four options out of which only one option is correct. The correct answer to each question is given at the end for your reference.
MCQ on Class 9 Science Chapter 1
1. What term describes the smallest unit of matter?
A) Atoms
B) Particles
C) Molecules
D) Elements
2. Which activity demonstrates the presence of space between particles of matter?
A) Dissolving sugar in water
B) Holding an incense stick in a room
C) Breaking an iron nail
D) Putting ink drops in water
3. What is the characteristic property of solids?
A) Definite shape and volume
B) No definite shape but fixed volume
C) No definite shape or volume
D) Definite volume but no fixed shape
4. What is the characteristic property of liquids?
A) Definite shape and volume
B) No definite shape but fixed volume
C) No definite shape or volume
D) Definite volume but no fixed shape
5. In which state of matter do particles move randomly at high speeds?
A) Solid
B) Liquid
C) Gas
D) Plasma
6. What term describes the force of attraction between particles of matter?
A) Pressure
B) Volume
C) Density
D) Intermolecular forces
7. Which state of matter has the highest compressibility?
A) Solid
B) Liquid
C) Gas
D) Plasma
8. What is the process of changing from a solid to a liquid state?
A) Melting
B) Freezing
C) Condensation
D) Sublimation
9. The minimum temperature at which a solid melts to become a liquid is called its:
A) Evaporation point
B) Boiling point
C) Freezing point
D) Melting point
10. What is the term for the change of state from gas to solid without passing through the liquid state?
A) Deposition
B) Sublimation
C) Condensation
D) Evaporation
11. What is the term for the change of state from liquid to gas at a temperature below the boiling point?
A) Boiling
B) Melting
C) Sublimation
D) Evaporation
12. Which factor does NOT affect the rate of evaporation?
A) Surface area
B) Temperature
C) Pressure
D) Humidity
13. What phenomenon causes the cooling effect of sweating?
A) Condensation
B) Melting
C) Evaporation
D) Sublimation
14. Which state of matter has the least intermolecular forces?
A) Solid
B) Liquid
C) Gas
D) Plasma
15. What is the term for the energy absorbed or released during a change of state?
A) Thermal energy
B) Kinetic energy
C) Latent heat
D) Potential energy
16. Which of the following substances undergo sublimation?
A) Water
B) Iron
C) Carbon dioxide
D) Salt
17. What is the process of changing from a gas to a liquid state?
A) Freezing
B) Condensation
C) Sublimation
D) Evaporation
18. Which of the following materials has the highest compressibility?
A) Water
B) Wood
C) Air
D) Glass
19. What term describes the amount of water vapor present in the air?
A) Pressure
B) Humidity
C) Density
D) Evaporation
20. Which state of matter has a definite shape but takes the shape of its container?
A) Solid
B) Liquid
C) Gas
D) Plasma
21. What term describes the force exerted by gas particles per unit area on the walls of the container?
A) Volume
B) Pressure
C) Density
D) Temperature
22. Which factor increases the rate of evaporation?
A) Decrease in temperature
B) Increase in humidity
C) Decrease in surface area
D) Increase in wind speed
23. What is the term for the change of state from liquid to solid?
A) Melting
B) Freezing
C) Evaporation
D) Sublimation
24. What is the term for the change of state from gas to liquid?
A) Freezing
B) Condensation
C) Evaporation
D) Sublimation
25. Which state of matter has the highest kinetic energy?
A) Solid
B) Liquid
C) Gas
D) Plasma
26. What is the term for the change of state from solid to gas?
A) Freezing
B) Condensation
C) Evaporation
D) Sublimation
27. Which of the following substances does NOT undergo sublimation?
A) Dry ice (solid carbon dioxide)
B) Camphor
C) Ice
D) Salt
28. Which factor does NOT affect the rate of evaporation?
A) Temperature
B) Pressure
C) Humidity
D) Surface area
29. What is the term for the energy absorbed or released during a change of state?
A) Thermal energy
B) Kinetic energy
C) Latent heat
D) Potential energy
30. Which state of matter has particles with the least freedom of movement?
A) Solid
B) Liquid
C) Gas
D) Plasma
Correct Answers
Here is the list of correct answers to the above questions.
- B) Particles
- A) Dissolving sugar in water
- A) Definite shape and volume
- B) No definite shape but fixed volume
- C) Gas
- D) Intermolecular forces
- C) Gas
- A) Melting
- D) Melting point
- A) Deposition
- D) Evaporation
- C) Pressure
- C) Evaporation
- A) Solid
- C) Latent heat
- C) Carbon dioxide
- B) Condensation
- C) Air
- B) Humidity
- A) Solid
- B) Pressure
- D) Increase in wind speed
- B) Freezing
- B) Condensation
- C) Gas
- D) Sublimation
- C) Ice
- B) Pressure
- C) Latent heat
- A) Solid
The Bottom Line
I hope these 30 MCQs on Matter In Our Surroundings of Class 9 Science Chapter 1 have helped you in your studies and preparation.
If you have any queries, or comments or find any mistake in the above questions, feel free to contact me in the comment section below.
I would love to hear from you.
Abdur Rohman is an Electrical Engineer from Charaideo, Assam, who wears multiple hats as a part-time teacher, blogger, entrepreneur, and digital marketer. Passionate about education, he founded The Assam School blog to provide free, comprehensive textbook solutions, MCQs (Multiple Choice Questions), and other academic content for students from Class V to XII.