CH-531
Separation and purification
Chemistry · Secondary 3 · Easy · Separation and purification
A student wants to obtain pure solid sodium chloride from a solution of sodium chloride and sand. Which sequence of methods should be used?
- Distillation, then filtration
- Filtration, then evaporation to dryness
- Evaporation to dryness, then filtration
- Chromatography, then filtration
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