Practicing Class 8 Science MCQ and Class 8 Science Chapter 7 Particulate Nature of Matter MCQ Questions Online Test with Answers daily helps in time management.
Class 8 Particulate Nature of Matter MCQ with Answers
MCQ on Particulate Nature of Matter Class 8
Class 8 Science Chapter 7 Particulate Nature of Matter MCQ Questions with Answers
Question 1.
What happens when chalk is broken into smaller pieces and ground into powder?
(a) It changes into a new substance.
(b) It remains the same substance but in smaller pieces.
(c) It dissolves in water.
(d) It melts into a liquid.
Answer:
(b) It remains the same substance but in smaller pieces.
Question 2.
Which of the following is true about interparticle forces in solids?
(a) They are weak and negligible.
(b) They are strong and hold particles tightly together.
(c) They allow particles to move freely.
(d) They do not exist.
Answer:
(b) They are strong and hold particles tightly together.
Question 3.
The property to flow is unique to fluids. Which one of the following statements is correct? (NCERT Exemplar)
(a) Only gases behave like fluids.
(b) Gases and solids behave like fluids.
(c) Gases and liquids behave like fluids.
(d) Only liquids are fluids.
Answer:
(c) Gases and liquids behave like fluids.
Question 4.
Which of the following is NOT true about gases?
(a) Gases have fixed volume.
(b) Particles have negligible attraction.
(c) Gases take the shape of their container.
(d) Gas particles move freely in all directions.
Answer:
(a) Gases have fixed volume.
Question 5.
What happens when you compress the air inside a syringe by pushing the plunger?
(a) The particles move farther apart.
(b) The volume increases.
(c) The particles stop moving.
(d) The particles come closer together.
Answer:
(d) The particles come closer together.
Particulate Nature of Matter Class 8 Assertion-Reason Type Questions
Directions (Q. No. 1 to 5): The question below consists of an Assertion (A) and a Reason (R).
Use the following key to choose the appropriate answer.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A .
(c) A is true but R is false.
(d) A is false but R is true.
Question 1.
Assertion (A): Solids cannot be compressed. Reason (R): The particles in solids have large interparticle spaces.
Answer:
(c) A is true but R is false.
Question 2.
Assertion (A): The fragrance of a perfume spreads quickly in a room.
Reason (R): Gas particles move freely and rapidly in all directions.
Answer:
(a) Both A and R are true and R is the correct explanation of A
Question 3.
Assertion (A): Liquids and gases are together known as fluids.
Reason (R): Fluids have fixed volume and shape.
Answer:
(c) A is true but R is false.
Question 4.
Assertion (A): Increasing temperature increases the movement of particles.
Reason (R): The particles in solids have least interparticle spaces.
Answer:
(b) Both A and R are true but R is not the correct explanation of A
Question 5.
Assertion (A): When sugar dissolves in water, the water level does not rise much.
Reason (R): Sugar particles occupy the spaces between water particles.
Answer:
(a) Both A and R are true and R is the correct explanation of A
Particulate Nature of Matter Class 8 Fill in the blanks
Question 1.
Matter is composed of extremely small ………..
Answer:
particles
Question 2.
The process by which a solid changes into a liquid is called ………..
Answer:
melting
Question 3.
……….. have maximum interparticle spacing.
Answer:
Gases
Question 4.
Iodine vapour can be obtained by placing some ……….. iodine in a closed gas jar for some time.
Answer:
solid
Question 5.
Particles in a ……….. are a little loosely packed than in solids.
Answer:
liquid
Particulate Nature of Matter Class 8 True or False
Question 1.
Water is practically incompressible.
Answer:
True
Question 2.
Heating a solid increases the vibration of its particles.
Answer:
True
Question 3.
Particles in a liquid move slower than in a solid.
Answer:
False
Question 4.
Solids have the least interparticle attraction.
Answer:
False
Question 5.
Sand dissolves in water and forms a clear solution.
Answer:
False
Question 6.
The constituent particles in ice are farther apart than those in water.
Answer:
True
Particulate Nature of Matter Class 8 Match the following
Question 1.
| Column A | Column B |
| (i) Melting | (a) Liquid changes into gas at the boiling point |
| (ii) Evaporation | (b) Liquids and gases flow easily |
| (iii) Boiling | (c) Liquid changes into gas at any temperature |
| (iv) Fluids | (d) Solid changes into liquid |
Answer:
| Column A | Column B | |
| (i) Melting |
|
|
| (ii) Evaporation | (c) Liquid changes into gas at any temperature | |
| (iii) Boiling | (a) Liquid changes into gas at the boiling point | |
| (iv) Fluids | (b) Liquids and gases flow easily |
Question 2.
| Column A | Column B |
| (i) Solid | (a) Takes the shape of the container |
| (ii) Liquid | (b) Tiny dust particles suspended in air |
| (iii) Gas | (c) Fixed shape and volume |
| (iv) SPM | (d) Particles are far apart and move freely |
Answer:
| Column A | Column B |
| (i) Solid | (c) Fixed shape and volume |
| (ii) Liquid | (a) Takes the shape of the container |
| (iii) Gas | (d) Particles are far apart and move freely |
| (iv) SPM | (b) Tiny dust particles suspended in air |