Chapter 1.3, Problem 1.11P

Interpretation Introduction

Interpretation:

The condensed formulas for two carboxylic acid with the molecular formula ${\text{C}}_4{\text{H}}_8{\text{O}}_2$ has to be drawn

Concept introduction:

Isomer: A molecule having same molecular formula with different chemical formula is called isomer.

Condensed structure:

Condensed structure is the line diagram, the carbon-carbon bonds are represented with lines, and hydrogens are absent entirely.

Carboxylic acid:

A carbon atom is double-bonded to an oxygen atom $(C=O)$ is called as carbonyl group which is one of the functional group.

If the carbonyl carbon is attached with hydroxyl group is called as carboxylic acid.