Chapter 23.5, Problem 1Q

Interpretation Introduction

Interpretation:

The structures of phenol, urea and formaldehyde have to be drawn.

Concept introduction:

Carboxylic acid: One $-OH$ group is attached to the carbonyl carbon atom of the compound. It is represented as $RCOOH$

Amide: One $-N{H}_2$, $-NHR\text{'}$ or $-NR{\text{'}}_2$ group is attached to the carbonyl carbon atom of the compound. It is represented as $RCONR{\text{'}}_2$.

Aldehyde: It is an organic compound having $-CHO$ as functional group.

Phenol is an aromatic compound and it is also known as phenolic acid. The molecular formula of phenol is ${\text{C}}_{\text{6}}{\text{H}}_{\text{5}}\text{OH}$. Phenol is a volatile and it is crystalline solid.

Urea is an organic compound. It is an amide containing two $-N{H}_2$ groups. The molecular formula of urea is ${\mathrm{CH}}_4{N}_{2}O$.

Formaldehyde is naturally occurring organic compound and molecular formula is ${\text{CH}}_{\text{2}}\text{O}$.