Which of the following substances should have the highest boiling point? A)CH₄ B)Cl₂ C)Kr D)CH₃Cl E)N₂

Question

Quizplus · Accepted Answer

The boiling point of a substance generally depends on the strength of its intermolecular forces. Hydrogen bonding is a particularly strong type of intermolecular force that occurs between molecules containing hydrogen and electronegative atoms such as oxygen, nitrogen, or fluorine. In option D, the molecule CH3Cl contains a polar covalent bond between carbon and chlorine which creates a partial positive and negative charge on the molecule. As such, it allows for dipole-dipole interactions that should be strong enough to raise its boiling point higher than the other molecules present. The other options do not contain such polar bonds and hence do not have as strong intermolecular interactions as CH3Cl.

Which of the Following Substances Should Have the Highest Boiling