Question

Arrange the products obtained in fractional distillation column from top to bottom during petroleum refining:

• A. Petroleum gas
• B. Petrol
• C. Kerosene
• D. Lubricating oil

Answer 1

Crude oil is separated into fractions by fractional distillation. The fractions at the top of the fractionating column have lower boiling points than the fractions at the bottom.
Hence, the correct order is:
Petroleum gas
$\downarrow$
Petrol
$\downarrow$
Kerosene
$\downarrow$
Lubricating oil