Answer: Option (c) is the correct answer.
Explanation:
When two different liquids of two different boiling point are mixed together then they can be separated by heating. Liquid with low boiling point will evaporate readily upon heating and when its vapors condense then it will be separated from the solution.
This process of separation is known as distillation.
Diffusion is the ability of a substance or liquid to spread into another liquid.
When non-similar particles cling to each other then it is known as adhesion.
When similar particles cling to each other then it is known as cohesion.
Hence, we can conclude that a process used to separate liquid solutions is diffusion.
