Homologous series: The series of carbon compounds in which two successive compounds differ by –CH2 unit is called homologue series.
● CH4, C2H6, C3H8…..
● CH3OH, C2H5OH, C3H7OH….
i. They have one general formula.
ii. Each compounds in the series differs by –CH2 group.
iii. They have similar chemical properties due to the same functional group.
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