O-LevelChemistryBonding & Structure5070/11 · Oct/Nov 2013 · Q81 Mark

The diagram shows the electrolysis of aqueous sodium chloride and of molten sodium chloride. Which substance in the diagram has both positive ions and mobile electrons?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Aaqueous sodium chloride

Bcopper wire

Cgraphite electrodes

Dmolten sodium chloride

✓ Correct answer

B: copper wire

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Topic: Bonding & Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2013 Paper 1 Variant 1, question 8.

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