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Question (11)

QN002601

When sand is added to water, the water level increases because:

(A) Sand particles settle and occupy space separately
(B) Sand particles enter water spaces completely
(C) Water particles disappear
(D) Sand melts in water

Correct Answer: A

Explanation:

Sand particles occupy separate space in water.

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Question (12)

QN002602

Which arrangement of interparticle spacing is correct?

(A) Gas < Liquid < Solid
(B) Liquid < Solid < Gas
(C) Solid < Liquid < Gas
(D) Solid < Gas < Liquid

Correct Answer: C

Explanation:

Interparticle spacing increases from solid to gas.

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Question (13)

QN002603

In solids, the spaces between particles are:

(A) Maximum
(B) Very large
(C) Very small
(D) Completely absent

Correct Answer: C

Explanation:

Solid particles are very closely packed.

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Question (14)

QN002604

The empty spaces between particles in solids are filled with:

(A) Air only
(B) Water vapour
(C) Nothing at all
(D) Dust particles

Correct Answer: C

Explanation:

Interparticle spaces are empty.

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Question (15)

QN002605

Which observation best demonstrates interparticle spaces in liquids?

(A) Compression of iron
(B) Dissolving sugar in water
(C) Burning paper
(D) Breaking glass

Correct Answer: B

Explanation:

Sugar particles occupy spaces between water particles.

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Question (16)

QN002606

In which state are particles most loosely packed?

(A) Solid
(B) Liquid
(C) Gas
(D) Ice

Correct Answer: C

Explanation:

Gas particles are most loosely packed.

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Question (17)

QN002607

Which state of matter shows maximum compressibility?

(A) Solid
(B) Liquid
(C) Gas
(D) Both solid and liquid equally

Correct Answer: C

Explanation:

Gases are highly compressible.

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Question (18)

QN002608

A syringe containing air is compressed from 50 mL to 20 mL. Which conclusion is correct?

(A) Gas particles decreased in number
(B) Gas particles became smaller
(C) Interparticle spaces decreased
(D) Gas changed into liquid

Correct Answer: C

Explanation:

Compression reduces spaces between gas particles.

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Question (19)

QN002609

Why does sugar dissolve in water but stone pieces do not?

(A) Sugar has no particles
(B) Water particles can separate sugar particles
(C) Stone particles are liquids
(D) Sugar has fixed shape

Correct Answer: B

Explanation:

Water can separate sugar particles but not stone particles.

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Question (20)

QN002610

Which of the following substances has particles with the least spacing?

(A) Steam
(B) Water
(C) Oxygen gas
(D) Iron rod

Correct Answer: D

Explanation:

Solids like iron have least interparticle spacing.

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Question (11)

When sand is added to water, the water level increases because:

Explanation:

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Question (12)

Which arrangement of interparticle spacing is correct?

Explanation:

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Question (13)

In solids, the spaces between particles are:

Explanation:

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Question (14)

The empty spaces between particles in solids are filled with:

Explanation:

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Question (15)

Which observation best demonstrates interparticle spaces in liquids?

Explanation:

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Question (16)

In which state are particles most loosely packed?

Explanation:

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Question (17)

Which state of matter shows maximum compressibility?

Explanation:

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Question (18)

A syringe containing air is compressed from 50 mL to 20 mL. Which conclusion is correct?

Explanation:

Link:

Question (19)

Why does sugar dissolve in water but stone pieces do not?

Explanation:

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Question (20)

Which of the following substances has particles with the least spacing?

Explanation:

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