Chapter 20, Problem 20.42P

Interpretation Introduction

Interpretation:

The compound that will form a yellow solid when dissolved in a basic aqueous solution of ${\text{I}}_{\text{2}}$ is to be identified.

Concept introduction:

The iodoform (${\text{HCl}}_{\text{3}}$) reaction was commonly used as a test for methyl ketones. Iodoform is a bright yellow solid at room temperature and is insoluble in water. Therefore, if a bright yellow precipitate appears on treating an organic compound with ${\text{I}}_{\text{2}}$ in basic solution, it is likely that the compound is a methyl ketone or methyl aldehyde.