Question

Which of the following regarding fractional distillation is true?

• A. Fractional distillation method is used if difference in boiling points of two liquids is large
• B. It uses a fractionating column
• C. It has same experimental setup like simple distillation but high temperature is used
• D. None of the above

Answer 1

The correct option is B It uses a fractionating column

Fractional distillation method is used if difference in boiling points of two liquids is not much and simple distillation can't be used to separate them.
In fractional distillation,vapours of liquid mixture are passed through a fractionating column before condensation.
Hence, option (b) is correct.