NCERT Solutions for Class 12 Chemistry Chapter 11 Alcohols, Phenols and Ethers


Alcohols and phenols are formed when a hydrogen atom in hydrocarbon, aliphatic and aromatic respectively, is replaced by a hydroxyl group (-OR group). In alcohols, -OR group is attached to Sp3 hybridised carbon. In phenols, -OR group is attached to Sp2 hybridised carbon. Alcohols and phenols are classified based on the number of -OH groups present. Compounds containing one -OH group are known as monohydride alcohols and phenols. The terms dihydric, trihydric or polyhydric are used, when the compounds contain two, three or more -OH groups, respectively. After studying this chapter alcohol, phenols and ethers, students can learn how to write the names of alcohols, phenols, and ethers according to the IUPAC system of nomenclature.

The reactions involved in the process of making alcohol from Alcohols, Phenols and Ethers. The reactions involved in the preparation of phenols from benzene sulphonic acids, haloarenes, cumene and diazonium salts. The reaction for the preparation of ethers from alcohols, alkyl halides and sodium alkoxides. The physical properties of ethers, phenols and alcohols.