How many of the following molecules possess a net non-zero dipole moment ()? Acetaldehyde, Acetone, — Aldehydes Ketones and Carboxylic Acids Chemistry Question

💡 Solution & Explanation

Acetaldehyde and Acetone are highly polar due to the $C=O$ group. Methoxyethane (an ether) is bent and polar. 1-Propanol (an alcohol) has a polar $O-H$ bond. Butane is a symmetrical, non-polar alkane. Thus, 4 molecules have $\mu > 0$.