O-LevelChemistryBonding & Structure5070/12 · May/June 2021 · Q61 Mark

Which statement about states of matter is correct?

AWhen a liquid freezes it becomes a solid and energy is released to the surroundings.

BWhen a liquid reaches its boiling point it becomes a gas. This process is called evaporation.

CWhen a solid changes directly to a gas the process is called condensation.

DWhen a solid melts the particles get further apart and have less energy.

✓ Correct answer

A: When a liquid freezes it becomes a solid and energy is released to the surroundings.

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Topic: Bonding & Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2021 Paper 1 Variant 2, question 6.

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