These forces dominate the interaction of non-polar molecules, and are often more significant than Keesom and Debye forces in polar molecules.
2.
The dispersion ( London ) force is the most important component because all materials are polarizable, whereas Keesom and Debye forces require permanent dipoles.
3.
:: Forces " stronger " than London dispersion forces that are also van der Waals include Debye forces, Keesom forces, hydrogen bonds, ionic bonds and induced ion forces; see intermolecular force.
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