Chapter 21, Problem 35E

Interpretation Introduction

Interpretation: The groups −COOH and −CHO and R in both carboxylic acids and aldehydes needs to be explained.

Concept introduction: Organic molecules have some structural features in addition to $\text{C}-\text{H}$ and $\text{C}-\text{C}$ bonds. Functional groups are defined as an atom or group of atom with characteristic physical and chemical properties. Functional group contains multiple bonds, hetero-atom or sometimes both the multiple bonds and hetero-atom.

Table given below gives information about the carboxylic and aldehyde functional group:

Type of Compound	General Structure
Carboxylic acid
Aldehyde