1.

Which of the following does not belong to the same homologous series? (a) CH4 (b) C2H6 (c) C3H8 (d) C4H8

Answer»

 The answer is (d) C4H8

General formula for C4H8 is CnH2n and for other option it is CnH2n+2

ANSWER

A, B & C are all saturated hydrocarbons with the general formula: Cn​H2n+2​, whereas C4​H8​ is an alkene with general formula Cn​H2n​

Option D is correct.



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