A-LevelChemistryElectrochemistry9701/12 · Feb/Mar 2017 · Q81 Mark
HOCl(aq) is the molecule that kills bacteria when chlorine is added to water. The following reaction produces this molecule. Cl₂(g) + H₂O(l) ⇌ HOCl(aq) + H⁺(aq) + Cl⁻(aq) Which statement about this reaction is correct?
AChlorine is both oxidised and reduced.
BChlorine is oxidised but not reduced.
CHydrogen is both oxidised and reduced.
DHydrogen is oxidised but not reduced.
✓ Correct answer
A: Chlorine is both oxidised and reduced.
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