Which of the following belongs to the same homologous series?
C3H8, C4H8, C4H6, C3H6
Homologous series refers to the series representing a family of compounds in an increasing order containing a characteristic functional group and the successive members differ from each other in the molecular formula by −CH2− group.
C3H8, C4H8, C4H6, C3H6
Here, C4H8 and C3H6 differ by CH2, therefore they belong to the same homologous group.
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