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Classification of Alkanols

Alcohols or alkanols are the compounds containing one or more hydroxyl groups (-OH). The alcohols contain the -OH group attached to alkyl group


Alkanols are classified as mono-, di- and trihydric alcohols according to the number of -OH groups’ contained in their molecules. Some examples of mono-, di- and trihydric alcohols are as follows:

Primary (1°), Secondary (2°) and Tertiary (3°) Alkanols

Monohydric alcohols are classified as primary, secondary or tertiary alcohols depending upon whether the hydrogen group is attached to a primary, secondary or tertiary carbon atom, For example,