Copper(II) sulfate is a soluble compound prepared by reacting copper(II) oxide with dilute sulfuric acid. The preparation may be carried out as follows: 1 Add excess copper(II) oxide to dilute sulfuric acid, then warm the mixture. 2 Filter to remove any copper(II) oxide that has not reacted. 3 Heat the filtrate so that most of the water is removed. 4 Allow the solution to cool, then filter out the solid copper(II) sulfate that is formed. Which row correctly displays the processes used in this preparation?
- Acrystallisation ✗, distillation ✗, evaporation ✗
- Bcrystallisation ✓, distillation ✓, evaporation ✗
- Ccrystallisation ✓, distillation ✗, evaporation ✓
- Dcrystallisation ✗, distillation ✓, evaporation ✓