MolSynapsequestion bank

MolSynapse / Question bank / Aldehydes, Ketones and Carboxylic Acids / Haloform reaction

JEE Main levelSingle correct optionDifficulty 2 of 3co123

Which of the following compounds gives a positive iodoform test AND reduces Tollens reagent?

A $CH X_{3} COCH X_{3}$
B $CH X_{3} CH X_{2} CHO$
C $C X_{6} H X_{5} CHO$
D $CH X_{3} CHO$

Answer: D

Only ethanal has both an

CH X_{3} CO X^{-}

unit and a free aldehyde group. Propanone gives iodoform only, while propanal and benzaldehyde reduce Tollens reagent but give no iodoform.

Practice Aldehydes, Ketones and Carboxylic Acids More on Haloform reaction

Previous questionNext question

More questions on Haloform reaction