1. The types of intermolecular forces of attraction are London dispersion forces (LDF), dipole- dipole interactions and hydrogen bonding.
2. London dispersion forces (LDF) is present in all molecules while Dipole-dipole interactions exhibited only by polar ones. Hydrogen bonds, on the other hand occurs when hydrogen is bonded to fluorine, chlorine, oxygen or nitrogen.
3. Intermolecular forces haveeffects on the physical properties of substances The stronger the force, the more difficult it is to pull molecules off from each other. When comparing properties of substance, strong intermolecular forces viscosity, lead in evaporation boiling and melting points, surface tension, capillary action and evaporation rate.
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