In a water H2O molecule, there are three types of intermolecular forces present:1. Hydrogen bonding: This is the strongest type of intermolecular force present in water molecules. Hydrogen bonding occurs when a hydrogen atom is covalently bonded to a highly electronegative atom such as oxygen, nitrogen, or fluorine and is attracted to another electronegative atom. In the case of water, the oxygen atom is more electronegative than the hydrogen atoms, which leads to a polar covalent bond. The oxygen atom has a partial negative charge - and the hydrogen atoms have partial positive charges + . The partially positive hydrogen atom of one water molecule is attracted to the partially negative oxygen atom of another water molecule, forming a hydrogen bond.2. Dipole-dipole interactions: These forces occur between polar molecules, where there is an uneven distribution of electron density, resulting in a molecule with a positive end and a negative end a dipole . In water, the oxygen atom is more electronegative than the hydrogen atoms, creating a dipole with the oxygen end being more negative and the hydrogen end being more positive. The positive end of one water molecule is attracted to the negative end of another water molecule, resulting in a dipole-dipole interaction.3. London dispersion forces also known as van der Waals forces : These are the weakest type of intermolecular forces and are present in all molecules, including nonpolar ones. London dispersion forces arise from temporary fluctuations in electron density, which create temporary dipoles. These temporary dipoles induce dipoles in neighboring molecules, leading to an attractive force between them. Although water molecules are polar and have stronger intermolecular forces like hydrogen bonding and dipole-dipole interactions, London dispersion forces still contribute to the overall intermolecular forces present in water.In summary, water molecules experience hydrogen bonding, dipole-dipole interactions, and London dispersion forces. The presence of these intermolecular forces is responsible for water's unique properties, such as its high boiling point, high heat capacity, and high surface tension.