Chapter 1: Matter in Our Surroundings Assertion-Reason Questions | science Class 9 CBSE

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Chapter 1: Matter in Our Surroundings Assertion-Reason Questions | science Class 9 CBSE | ByteNotes.in

Assertion-Reason

Check the statement and reason

A-R

Question 1

Logic Check

Assertion (A): Everything in the universe is made up of matter. Reason (R): Matter is anything that has mass and occupies space.

Reasoning Options

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Assertion-Reason

Check the statement and reason

A-R

Question 2

Logic Check

Assertion (A): Matter is made up of very small particles. Reason (R): Even a few crystals of potassium permanganate can color a large volume of water.

Reasoning Options

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Assertion-Reason

Check the statement and reason

A-R

Question 3

Logic Check

Assertion (A): The smell of incense spreads across the room. Reason (R): Particles of matter are constantly moving and mix with air particles through diffusion.

Reasoning Options

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Assertion-Reason

Check the statement and reason

A-R

Question 4

Logic Check

Assertion (A): Matter particles have space between them. Reason (R): Salt dissolves in water without increasing its volume.

Reasoning Options

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Assertion-Reason

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A-R

Question 5

Logic Check

Assertion (A): Particles of matter attract each other. Reason (R): A solid object like iron is difficult to break due to strong intermolecular forces.

Reasoning Options

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Assertion-Reason

Check the statement and reason

A-R

Question 6

Logic Check

Assertion (A): Solids have a fixed shape and volume. Reason (R): The particles in solids are tightly packed and have the least kinetic energy.

Reasoning Options

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Assertion-Reason

Check the statement and reason

A-R

Question 7

Logic Check

Assertion (A): Liquids take the shape of the container in which they are placed. Reason (R): The particles in liquids are less tightly packed and can slide over each other.

Reasoning Options

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Assertion-Reason

Check the statement and reason

A-R

Question 8

Logic Check

Assertion (A): Gases have no fixed shape or volume. Reason (R): Gases have high kinetic energy and negligible intermolecular forces.

Reasoning Options

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Assertion-Reason

Check the statement and reason

A-R

Question 9

Logic Check

Assertion (A): Gases can be compressed easily. Reason (R): The particles of gases are far apart and have large empty spaces between them.

Reasoning Options

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Assertion-Reason

Check the statement and reason

A-R

Question 10

Logic Check

Assertion (A): Increasing temperature increases the kinetic energy of particles. Reason (R): Heat makes particles vibrate more and reduces intermolecular attraction.

Reasoning Options

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Chapter sections

Chapter 1: Matter in Our Surroundings | Assertion-Reason

Assertion (A): Everything in the universe is made up of matter. Reason (R): Matter is anything that has mass and occupies space.

Assertion (A): Matter is made up of very small particles. Reason (R): Even a few crystals of potassium permanganate can color a large volume of water.

Assertion (A): The smell of incense spreads across the room. Reason (R): Particles of matter are constantly moving and mix with air particles through diffusion.

Assertion (A): Matter particles have space between them. Reason (R): Salt dissolves in water without increasing its volume.

Assertion (A): Particles of matter attract each other. Reason (R): A solid object like iron is difficult to break due to strong intermolecular forces.

Assertion (A): Solids have a fixed shape and volume. Reason (R): The particles in solids are tightly packed and have the least kinetic energy.

Assertion (A): Liquids take the shape of the container in which they are placed. Reason (R): The particles in liquids are less tightly packed and can slide over each other.

Assertion (A): Gases have no fixed shape or volume. Reason (R): Gases have high kinetic energy and negligible intermolecular forces.

Assertion (A): Gases can be compressed easily. Reason (R): The particles of gases are far apart and have large empty spaces between them.

Assertion (A): Increasing temperature increases the kinetic energy of particles. Reason (R): Heat makes particles vibrate more and reduces intermolecular attraction.

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