Hydroxyl compounds, also known as alcohols, are organic compounds that contain one or more hydroxyl groups (-OH). These groups are responsible for the unique properties of alcohols, such as their ability to form hydrogen bonds, which affects their boiling points and solubility in water. Common examples include ethanol, found in alcoholic beverages, and methanol, used as a solvent and fuel. In addition to their use in beverages and industrial applications, hydroxyl compounds play a crucial role in various biological processes. They are involved in metabolism and can act as solvents in chemical reactions. Their versatility makes them important in both chemistry and everyday life.