O-LevelChemistryBonding & Structure5070/11 · Oct/Nov 2022 · Q101 Mark

Elements X and Y react to form compound XY. Element Y has more electrons in its outer shell than element X. Compound XY conducts electricity in the molten state. Which row correctly states the electron change that occurs during the reaction and the type of bonding in compound XY?

AX donates electrons to Y ionic

BX shares electrons with Y covalent

CY donates electrons to X covalent

DY shares electrons with X ionic

✓ Correct answer

A: X donates electrons to Y ionic

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Topic: Bonding & Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2022 Paper 1 Variant 1, question 10.

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