Question

The number of the given compounds, which can form iodoform with alkali and iodine Diethyl ketone, Acetone, Ethyl chloride, Catechol, Ethanol, Resorcinol, Isopropyl alcohol, Acetophenone, Butanone, Lactic acid ( ) and salicylic acid.

Answer 1

Answer: 5

Catechol, Mandelic acid and $C{H}_{3}C{H}_2-CO-C{H}_2-C{H}_3\to \text{No yellow ppt}$
aldehydes & ketones having $-\stackrel{\underset{||}{O}}{C}-C{H}_3$ group & $1^{\circ }$ or $2^{\circ }$ alcohols having$C{H}_3-\underset{|}{\stackrel{|}{C}}-OH$ give yellow ppt $C{H}_3$ with $I_2/O{H}^{-}$
Her acetone, isopropyl alcohol, ethyl alcohol, Butanone & Acetophenone can from $CH{I}_3$ and rest are not