O-LevelChemistryBonding & Structure5070/12 · May/June 2020 · Q121 Mark

Element X has a lattice of positive ions and a 'sea of electrons'. Which property will X have?

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AIt conducts electricity by the movement of ions and electrons.

BIt has a high melting point.

CIt is decomposed by an electric current.

DIt is not malleable.

✓ Correct answer

B: It has a high melting point.

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Topic: Bonding & Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2020 Paper 1 Variant 2, question 12.

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