Question

Find how many of the following compounds will give positive iodoform test?
Butan- $2$ -ol, $1$ -cyclobutylethanol, benzyl alcohol, ethanol, propan- $1$ -ol, phenol, propan- $2$ -ol, pentan- $3$ -ol, methanol, $2$ -methylpropan- $1$ -ol, butan- $1$ -ol,
$1$ -phenylethanol.

Answer 1

Answer: 5

Iodoform test is given by alcohols containing ${\left(CH\right)}_3-CH(OH)-$ group linked to carbon or hydrogen atom. Thus, butan- $2$ -ol, $1$ -cyclobutylethanol, ethanol, propan- $2$ -ol, $1$ -phenylethanol will give positive iodoform test.