Chapter 16.4, Problem 1QQ

Interpretation Introduction

Interpretation:

Hydroxy acid has to be chosen from the given acids.

Concept Introduction:

Carbonyl groups are the one which contain a double bond between carbon and oxygen atom.  Aldehydes and ketones possess this carbonyl functional group in it.  The structural representation of a carbonyl group can be given as shown below,

If a hydroxyl group is attached to a carbonyl group means it is known as carboxyl group.  This can be represented as shown below,

Apart from carboxyl group, there can be other functional group also that is present in the carboxylic acid.  They are known as polyfunctional carboxylic acids.  These occur naturally also.  Some of the important type of polyfunctional carboxylic acids are hydroxy acids, keto acids, and unsaturated acids.