Question

Which compounds give the iodoform test?

Answer 1

Iodoform Test

• The compounds which contain acetaldehyde, methyl ketones, ethanol, etc. give the iodoform test.
• The iodoform test is used to confirm whether a carbonyl compound with an alkyl group or an alcoholic compound with an alkyl group is present in a given compound.
• Iodoform is produced when iodine reacts with methyl ketone along with a base.

$\mathrm{R}-\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}-{\mathrm{CH}}_3+\hspace{0.17em}3{\mathrm{I}}_2\stackrel{}{\to }\mathrm{R}-\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}-\mathrm{ONa}+{\mathrm{CHI}}_3+3{\mathrm{H}}_2\mathrm{O}$