H2O forms intermolecular H bonding as below H2S forms intermolecular H bonding as below: In H2O and H2S , Oxygen and Sulphur are the central atoms respectively. read more
It's due to the higher electronegativity of Oxygen than Sulphur that it makes Intermolecular Hydrogen bonds with the Hydrogen Atoms of Other water molecules thus the Boiling Point of H2O increases and is much higher than that of H2S. read more
Water (H20) has hydrogen bonding and London forces. Hydrogen sulfide (H2S) has only London forces. The reason why water has hydrogen bonding and hydrogen sulfide does not is because the oxygen in water is more electronegative than the sulfur in hydrogen sulfide. read more