Question

when crude oil vapour is fed into a fractionating column _________.

1.the fractions with the lowest boiling point condenses first.

2.the fractions with the highest boiling point condenses first.

3.the lighter fractions are deposited near the base of the column.

4.the heavier fractions are deposited near the top of the column. ​

Answer 1

Answer: its easy but i will help read the extract and write

Fractional distillation separates a mixture into a number of different parts, called fractions. A tall fractionating column is fitted above the mixture, with several condensers coming off at different heights. ... The crude oil is evaporated and its vapours condense at different temperatures in the fractionating column.