Question

fractional distillation is a technique used to separate complex mixtures of hydrocarbons based on differences in their

Answer 1

boiling points

distillation is always about boiling points!

Answer 2

Fractional distillation is a technique used to separate complex mixtures of hydrocarbons based on differences in their boiling points.

Step-by-step explanation:

Fractional distillation is separation technique in which mixture is separated out into its components.The main principle behind this separation technique is that different liquids boil at different temperatures or have different boiling points.

This technique is mainly used in refining of oil into its various components.