CH-1328
Separation and purification
Chemistry · Secondary 4 · Medium · Separation and purification
A mixture contains soluble potassium nitrate and insoluble calcium carbonate. Which sequence of steps is the best method to obtain pure solid potassium nitrate?
- Dissolution → filtration → evaporation to dryness → crystallisation
- Dissolution → filtration → crystallisation → drying of crystals
- Filtration → dissolution → evaporation to dryness → crystallisation
- Evaporation to dryness → dissolution → filtration → crystallisation
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.