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  • Alcohol | Definition, Formula, Facts | Britannica
    Alcohol, any of a class of organic compounds with one or more hydroxyl groups attached to a carbon atom of an alkyl group Alcohols may be considered as organic derivatives of water (H2O) in which a hydrogen atom has been replaced by an alkyl group Examples include ethanol, methanol, and isopropyl alcohol
  • Structure and classification of alcohols - Encyclopedia Britannica
    One way of classifying alcohols is based on which carbon atom is bonded to the hydroxyl group If this carbon is primary (1°, bonded to only one other carbon atom), the compound is a primary alcohol A secondary alcohol has the hydroxyl group on a secondary (2°) carbon atom, which is bonded to two other carbon atoms
  • Alcohol - Reactions, Chemistry, Uses | Britannica
    The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids
  • Physical properties of alcohols - Encyclopedia Britannica
    Alcohol - Boiling Point, Solubility, Flammability: Most of the common alcohols are colourless liquids at room temperature Methyl alcohol, ethyl alcohol, and isopropyl alcohol are free-flowing liquids with fruity odours
  • Characteristics of alcohol | Britannica
    Ethanol (grain alcohol) and methanol (wood alcohol) are the best-known alcohols with one hydroxyl group Glycols (e g , ethylene glycol, or antifreeze) contain two hydroxyl groups, glycerol three, and polyols three or more
  • Ethanol | Definition, Formula, Uses, Facts | Britannica
    Ethanol, a member of a class of organic compounds that are given the general name alcohols Ethanol is an important industrial chemical; it is used as a solvent, in the synthesis of other organic chemicals, and as an additive to gasoline
  • Alcohol - Esterification, Chemistry, Reactions | Britannica
    Alcohol - Esterification, Chemistry, Reactions: Alcohols can combine with many kinds of acids to form esters When no type of acid is specified, the word ester is assumed to mean a carboxylic ester, the ester of an alcohol and a carboxylic acid
  • list of presidents of the United States - Encyclopedia Britannica
    As the head of the government of the United States, the president is arguably the most powerful government official in the world The president is elected to a four-year term via an electoral college system Since the Twenty-second Amendment was adopted in 1951, the American presidency has been limited to a maximum of two terms Click on a president below to learn more about each presidency
  • Methanol | Properties, Production, Uses, Poisoning | Britannica
    methanol (CH 3 OH), the simplest of a long series of organic compounds called alcohols, consisting of a methyl group (CH 3) linked with a hydroxy group (OH) Methanol was formerly produced by the destructive distillation of wood





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