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Solution


Q.

Which of the following belongs to homologous series of alkynes C6H6, C2H6, C2H4, C3H4:
1 C6H6  
2 C2H4  
3 C2H6  
4 C3H4  

Ans.

(4)

Homologous series is the series comprising of compounds that share same chemical properties and functional groups. Alkynes have general formula, CnH2n-2, where n is number of carbon atoms.

Thus, from the given options, C3H4 belongs to the homologous series of alkynes.