Which one of the following molecules is the most polar?

Question

Quizplus · Accepted Answer

Benzoic acid contains a polar -COOH group, which adds to its already polar aromatic ring, making it the most polar molecule among the given options. Acetylene contains a polar C≡C bond, but it is not as polar as the functional groups in benzoic acid. Diethylether and 2,3-dimethylhexane are nonpolar molecules as they do not contain any polar functional groups or asymmetric distribution of atoms.

Which One of the Following Molecules Is the Most Polar