O-LevelChemistryBonding & Structure5070/12 · Oct/Nov 2020 · Q281 Mark

Metals have high melting points. What is the reason for this?

ATheir atoms are joined by strong covalent bonds in a giant lattice.

BThey have strong forces of attraction between negative ions and delocalised electrons.

CThey have strong forces of attraction between negative ions and positive ions.

DThey have strong forces of attraction between positive ions and delocalised electrons.

✓ Correct answer

D: They have strong forces of attraction between positive ions and delocalised electrons.

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Topic: Bonding & Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2020 Paper 1 Variant 2, question 28.

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