Question

Why are large alkane molecules cracked to form samller molecules to use it as a fuel?

• A. It forms only $20\%$ of the crude oil.
• B. To meet the demand for small alkane molecules.
• C. Crude oil does not contain small alkane molecules.
• D. Small alkane molecules can be polymerised.

Answer 1

The correct option is B

To meet the demand for small alkane molecules.

This is to fulfill the demand of smaller alkanes and alkenes obtained from cracking. Generally, alkanes are used for fuel preparation while alkenes are used for plastic preparation.