Chemistry · May / June 2026 · Paper 11 · Question 16

When bismuth(III) chloride, BiCl3, is added to water, a reaction occurs and a white precipitate of BiOCl is formed. BiCl3(aq) + H2O(l) ⇋ BiOCl(s) + 2HCl(aq) Which changes increase the mass of white precipitate formed? 1 adding more water 2 adding aqueous sodium hydroxide 3 adding dilute hydrochloric acid

1. A1 and 2
2. B1 and 3
3. C1 only
4. D2 and 3

As printed in the paper