Question

Which of the following shows an unsaturated fatty acid?

Answer 1

Answer: Option (c) is the correct answer.

Explanation:

A long hydrocarbon chain that consists a terminal carboxylic group is known as a fatty acid.

An unsaturated fatty acid consists a double bond within the fatty acid chain. If a fatty acid contains more than one double bond then it is known as polyunsaturated fatty acid.

For example, oelic acid has chemical formula $C_{18}H_{34}O_{2}$ is an unsaturated fatty acid.

Therefore, we can conclude that option (c) represents an unsaturated fatty acid.