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SubjectPaid lesson

Alkanols 2

ClassNotes Team 4 MIN READUPDATED 5 JUL 2026

CHEMISTRY SSS2 Third Term

WEEK 10

Alkanols 2

Performance objectives

Students should be able to:

  1. Identify polyhydric, dihydric, and trihydric alcohol with examples
  2. Explain the chemical properties of Alkanols.
  3. Give at least three uses of Alkanols.

Content

Classification of Alkanols based on their hydroxyl group

Monohydric alcohol

Alcohols containing one hydroxyl (-OH) group are known as monohydric alcohols.

For example

Ethanol: CH3-CH2-OH, Propanol: CH3-CH2-CH2-OH

Dihydric Alkanols

Alcohols containing two hydroxyl (-OH) groups are known as dihydric alcohols.

Examples.

                                                                                        http://www.citycollegiate.com/alcohols_XIIa.gif

 

 

Trihydric Alkanols

Alcohols containing three hydroxyl (-OH) groups are known as trihydric alcohols.

 

http://www.citycollegiate.com/alcohols_XIIb.gif

Chemical properties of Alkanols

The OH functional group (hydroxyl functional group) is the active site on alkanol molecules.

Alkanols can undergo a number of…