Plz ans this

Dear student
A homologous series is a series of organic compounds which belong to the same family (i.e. possess same functional group) and show similar chemical properties. The members of this series are called homologue and differ from each other by the number of CH₂ units in the main carbon chain. Following are the characteristics of a homologous series

• All homologues of a series have the same general formula e.g., all alkanes have the general formula C_n H_{2n + 2}, alkyl halides have the general formula C_nH_(2n+1)X, alkenes have the general formula C_nH_2n, alkyne have the general formula C_nH_2n-2 etc.
• Each consecutive member differs from the next by one carbon atom and two hydrogen atoms (-CH₂ group).
• The difference in the molecular mass between two consecutive homologues is 14 amu.
• The physical properties of homologues show a regular gradation.
• Homologues of a series have similar chemical properties.

So given general formula C_nH_2n, is for alkyne, and C₃H₄ is given so homologue of this will be C₄H₆ i.e. Butyne is a compound with the chemical formula of C₄H₆ and it is homologue of C₃H₄  propyne.
Hope it is clear
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