Chemistry 5070 · O Level · Reversible reactions and equilibrium

Reversible reactions and equilibrium — practice question

On adding bismuth(III) chloride, $\text{BiCl}_3$, to water, a reaction takes place and a white precipitate of BiOCl is produced. $\text{BiCl}_3(aq) + \text{H}_2\text{O}(l) \rightleftharpoons \text{BiOCl}(s) + 2\text{HCl}(aq)$ Which of these changes would increase the mass of white precipitate produced? 1. adding extra water 2. adding aqueous sodium hydroxide 3. adding dilute hydrochloric acid

  • A1 and 2
  • B1 and 3
  • C1 only
  • D2 and 3

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