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O-LevelChemistryBonding & Structure5070/11 · Oct/Nov 2016 · Q121 Mark

An ionic compound has the formula XY, where Y is a non-metal. Which statement about XY is correct?

AAn atom of X has lost at least one electron to form a positive ion.
BBoth X and Y share a pair of electrons.
CElement X is also a non-metal.
DXY will not conduct electricity when liquid.

✓ Correct answer

A: An atom of X has lost at least one electron to form a positive ion.

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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 2016 Paper 1 Variant 1, question 12.

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