Question

Crude oil is purified using fractional distillation process. This method works on the principle of:

• A. differences in the masses of the components
• B. differences in the volumes of the components
• C. differences in the boiling points of the components
• D. their solubility in water

Answer 1

Answer: (C)

differences in the boiling points of the components

The different hydrocarbon components of crude oil are called fractions. The fractions are separated from one another using a process called fractional distillation. This process is based on the principle that different substances boil at different temperatures. So options A, B, and D are incorrect and, option C is correct.