Question

Which of the following shows an unsaturated fatty acid?

Answer 1

Answer;

The first choice (A) is an unsaturated fatty acid.

Explanation;

-An unsaturated fat is a fat or fatty acid in which there is one or more double bond in the fatty acid chain.

-A fat molecule is monounsaturated if it contains one double bond, and polyunsaturated if it contains more than one double bond. In this case, the unsaturated fat (A) is polyunsaturated.

Answer 2

Answer:

Of the given attachments, the first attachment is the correct answer.

Explanation:

A fatty acid refers to a lengthened hydrocarbon chain, which comprises a carboxylic group. The two main kinds of fatty acids are unsaturated and saturated fatty acids. An unsaturated fatty acid comprises a double bond within the fatty acid chain. In case, if a fatty acid comprises more than one double bond than it is termed as polyunsaturated fatty acid.  

Thus, of the given attachments, the first attachment comprises the carboxylic acid with a lengthened hydrocarbon chain and double bond in its composition.