O-LevelChemistryRates of Reaction5070/11 · Oct/Nov 2013 · Q171 Mark
When bismuth(III) chloride, BiCl3, is added to water, a white precipitate of BiOCl is formed. BiCl3(aq) + H2O(l) ⇌ BiOCl(s) + 2HCl(aq) If this reversible reaction is at equilibrium and hydrochloric acid is added, what will happen?
AThe position of equilibrium moves to the left and more white precipitate is formed.
BThe position of equilibrium moves to the left and the white precipitate disappears.
CThe position of equilibrium moves to the right and more white precipitate is formed.
DThe position of equilibrium moves to the right and the white precipitate disappears.
✓ Correct answer
B: The position of equilibrium moves to the left and the white precipitate disappears.
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