Arrange the compounds in the order of increasing boiling point (lowest first).

Question

Quizplus · Accepted Answer

The boiling point increases with increasing intermolecular forces. Compound I is a nonpolar molecule with only dispersion forces between the molecules, compound IV has hydrogen bonding between the molecules due to the OH group, compound III is a polar molecule with dipole-dipole forces between the molecules, and compound II has ionic bonds between the molecules. Therefore, the order of increasing boiling point is I < IV < III < II, which is consistent with choice D.

Arrange the Compounds in the Order of Increasing Boiling Point