Question

A chemist has been given a mixture of two liquids that form a solution. The liquids have different boiling points, densities, and colors. Which method should be used to most easily separate the two liquids?

A - Distillation
B - Filtration
C - Sedimentation
D - Evaporation

Answer 1

The answer will be A. Distillation

Answer 2

A. Distillation. If the mixtures have different boiling points, the liquid with the lower boiling point will distill off first, followed by the other one.

“B. Filtration” is incorrect. Both liquids will pass through the filter paper.

“C. Sedimentation” is incorrect because it works only for a solid suspended in a liquid.

“D. Evaporation” is incorrect. Both liquids will pass into the atmosphere never to be seen again.