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O-LevelChemistryBonding & Structure5070/11 · Oct/Nov 2018 · Q71 Mark

Magnesium oxide has a high melting point. It is used to line the inside of furnaces that operate at high temperatures. Why does magnesium oxide have a high melting point?

AIt has metallic bonds.
BIt has strong forces between its molecules.
CIt is a simple molecular substance.
DIt is an ionic compound.

✓ Correct answer

D: It is an ionic compound.

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About this question

Topic
Bonding & Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, Oct/Nov 2018 Paper 1 Variant 1, question 7.

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