Which of the following is the strongest type of intermolecular force?

• A. Dipole-dipole interactions
• B. Hydrogen bonding
• C. London dispersion forces
• D. Ion-dipole interactions

Answer: (B)

Verified step by step guidance

1. Identify the types of intermolecular forces listed: dipole-dipole interactions, hydrogen bonding, London dispersion forces, and ion-dipole interactions.
2. Understand that London dispersion forces are the weakest and arise from temporary fluctuations in electron distribution in molecules.
3. Recognize that dipole-dipole interactions occur between polar molecules due to permanent dipoles, which are stronger than London dispersion forces.
4. Know that hydrogen bonding is a special, stronger type of dipole-dipole interaction that occurs when hydrogen is bonded to highly electronegative atoms like N, O, or F.
5. Realize that ion-dipole interactions, which occur between ions and polar molecules, are generally stronger than hydrogen bonding, making ion-dipole interactions the strongest among the options given.