Answer key

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Last edited 26 days ago by Learn LoopHQ.

Chapter: 01. Matter

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Fill in the blanks - Answer Key

Molecules in a liquid are less closely packed than in solids.

Solids have a fixed shape and volume.

The space between any two adjacent molecules is known as intermolecular space.

Higher the temperature, higher is the rate of diffusion.

Plasma is considered as the fourth state of matter.

Water, milk, and juice are examples of liquids.

Matheran in Maharashtra is Asia’s only automobile-free hill station.

Gases can be compressed easily due to large intermolecular spaces.

Matter is composed of extremely tiny particles called atoms and molecules.

The intermolecular force of attraction between the molecules in a gas is negligible.

Democritus proposed that matter was built of small particles that cannot be divided.

Liquids have a fixed volume but no fixed shape.

Diffusion refers to the spreading out and mixing of a substance with another substance caused by the motion of its particles.

The force of attraction between two neighbouring molecules is known as intermolecular force of attraction.

Oxygen, nitrogen, and carbon dioxide are examples of gases.

Matter has two common properties: it has mass and it occupies space.

Gases do not have a fixed shape or volume.

Solids do not flow, but liquids and gases can flow.

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