Classification Of Alcohol's, Phenol's And Ether's

CLASSIFICATION-OF-ALCOHOL,-PHENOL-AND-ETHER

Alcohol’s, phenol’s and ether’s are classes of organic compounds which find wide usage in a broad range of industries as well as for domestic purposes.

  • Alcohol is formed when a saturated carbon atom is bonded to a hydroxyl (-OH) group.
  • Phenol is formed when a hydrogen atom in benzene is replaced by the -OH group.
  • Ether is formed when an oxygen atom is connected to two alkyl or aryl groups.

In this section, we will discuss how alcohols, phenol’s and ether’s are classified.

Classification of Alcohol

Depending on the number of hydroxyl groups attached, alcohols can be classified into three types.

  • Monohydric alcohols: They contain one -OH group. Example, CH3CH2-OH
  • Dihydric alcohols: They contain two -OH groups. Example, 1,2-Ethandiol.
  • Trihydric alcohols: They contain three -OH groups. Example 1,2,3-Propantriol.
Classification of Alcohol

Classification of Alcohol: Mono-hydric, Di-hydric, Tri-hydric

Depending on the number of carbon atoms which are directly attached to the carbon that is bonded with the -OH group, alcohols can be classified into three types:

  • Primary alcohols: One carbon atom is directly attached.
  • Secondary alcohols: Two carbon atoms are directly attached.
  • Tertiary alcohols: Three carbon atoms are directly attached.
alcohol

Classification of Alcohol: Primary, Secondary and Tertiary Alcohol

Classification of Phenol

Depending on the number of hydroxyl groups attached, phenol’s can be classified into three types.

  • Monohydric phenols: They contain one -OH group.
  • Dihydric phenols: They contain two -OH groups. They may be ortho-, meta- or para- derivative.
  • Trihydric phenols: They contain three -OH groups.

Classification of Ether

Depending on the type of the alkyl or aryl groups attached to the oxygen atom in ether, it can be classified into two types.

  • Symmetrical ether: Also known as the simple ether, the alkyl or the aryl group attached to either side of the oxygen atoms are the same. Examples are CH3OCH3, C2H5OC2H5, etc.
  • Unsymmetrical ether: Also known as the mixed either, the alkyl or the aryl group attached to either side of the oxygen atoms, are not the same. Examples are CH3OC2H5, C2H5OC6H5, etc.

Practice NCERT Q&A on Alcohol, Phenol & Ether for a better understanding of the topic. Learn about the alcohol formula, uses and effects of alcoholism from our mentors. Download Byju’s The Learning App from the app store or visit our website to now more.

 


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In the purification of NaCl, an impure solution is saturated with HCl gas. The principle involved is: