O-LevelChemistryBonding & Structure5070/12 · May/June 2015 · Q131 Mark
The list shows some substances that conduct electricity. 1 aqueous sodium chloride 2 copper 3 graphite In which substance(s) are only electrons involved in the conduction?
A1 and 2
B2 and 3
C2 only
D3 only
✓ Correct answer
B: 2 and 3
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