Chemistry 0620 · IGCSE · Separation and purification

Separation and purification — practice question

Silver chloride is a white solid that is insoluble in water. Which statement explains how a pure sample of silver chloride may be prepared?

  • AAdd aqueous silver nitrate to aqueous sodium chloride and then filter.
  • BAdd aqueous silver nitrate to dilute hydrochloric acid, evaporate and then crystallise.
  • CAdd silver carbonate to dilute hydrochloric acid, evaporate and then crystallise.
  • DAdd silver to dilute hydrochloric acid, filter and then wash the residue.

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