While diluting a solution of salt in water, a student by mistake added acetone (boiling point 56°C)

While diluting a solution of salt in water, a student by mistake added acetone (boiling point 56°C). What technique can be employed to get back the acetone? Justify your choice.

Answer:
Distillation is used to get back acetone. We know that boiling point of water is 100°C and since acetone is more volatile it will separate out first.