Hydrogen bonds are represented as H···Y system, where the dots represent the hydrogen bond.
Hydrogen bonding refers to the formation of Hydrogen bonds, which are a special class of attractive intermolecular forces that arise due to the dipole-dipole interaction between a hydrogen atom that is bonded to a highly electronegative atom and another highly electronegative atom which lies in the vicinity of the hydrogen atom.
Example of hydrogen bonding
A strongly electronegative oxygen atom is linked to the hydrogen atom in a water molecule. The shared pair of electrons are more attracted to the oxygen atom, and this end of the molecule becomes negative, while the hydrogen atoms become positive.