If the liquid being distilled contains dissolved magnesium chloride, where will it be found after distillation is completed?
Correct answer: D. In the heated flask
- A. Around the thermometer
- B. In the condenser
- C. In the circulating water
- D. In the heated flask
- E. In the distillate
Explanation
The magnesium chloride will be left behind in the heated flask since it is not volatile as the liquid boils off.
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About Experimental Techniques in Chemistry
Separation methods are selected according to differences in solubility, particle size, volatility and sublimation behaviour. Filtration and crystallisation separate insoluble or dissolved solids, sublimation isolates suitable volatile solids, distillation separates liquids by boiling point, and solvent extraction transfers a substance between immiscible solvents.
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