A class is chemical compounds, all if which consists of chemically bonded atoms of carbon, hydrogen, and oxygen all alcohol molecules contain at least one hydroxyl group. When people say alcohol they usually think of beer, wine, or liquor, but there are several types of alcohol. An alcoholic beverage is a drink that contains ethyl alcohol. They are mostly made of grains or from grapes or other fruits. There are two main groups fermented and distilled drinks. Fermented drinks contain from five percent to twenty percent ethyl alcohol. Distilled ....