Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub

Consider the heating reactions of dicarboxylic acids, HOOC–(CH₂)ₓ–COOH, where $x$ is the number of methylene groups between the COOH groups and varies from 1 to 5.

Let $p$ = the number of acids in which one of the products is CO₂

Let $q$ = the number of acids in which one of the products is H₂O.

Let $r$ = the number of acids in which products contain both CO₂ and H₂O.