Answer:
Van de Waal forces are intermolecular forces (London Dispersion forces, Dipole-Dipole forces, and Hydrogen Bonds). It was discovered by a Dutch scientist called Johannes Diderik van der Waals. Intermolecular forces are the attraction and strength of bonds between molecules, with London Dispersion Forces being the weakest and Hydrogen Bonds being the strongest.
Step-by-step explanation: