1. The problem statement, all variables and given/known data I know that there are three types of Intermolecular forces but while searching on the internet I found that there are six intermolecular forces i.e. Dipole-Dipole Interaction, Hydrogen bond, London Dispersion, Ion-Dipole Interaction, Dipole-Induced Dipole Interaction and Ion-Induced dipole Interaction. So please help me here. 2. Relevant equations 3. The attempt at a solution From what I have learnt from school there are three.