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A water molecule is held together by two single polar covalent bonds. 2. Because oxygen has a greater electronegativity than hydrogen, water molecules are polar with two partial negative charges near the oxygen atom and one partial positive charge near each hydrogen atom. 3. Atoms differ in their affinity for neutrons, a property called electronegativity.
Between water molecules hydrogen bonds are found which are called as intermolecular hydrogen bonding The water molecule has H-O-H, 2 hydrogen and one oxygen present. The O atom is highly electronegative in comparison to the H atom, hence it attracts the electron pair towards itself, making O atom itself partial negatively charged and H atom partial positively charged. So, water is a polar compound. The partially negative charged O atoms, (forms bond) attracts partially positively charged H atom from other molecule, forming hydrogen bond, and water forms intermolecular hydrogen bonding.