What is meant by isomers? Draw the structures of two isomers of butane, C4H10 Explain why we cannot have isomers of first three members of alkane series.


Isomers are the organic compounds having the same molecular formula but different structural formulae or different arrangement of carbon atoms in them.

Following are the isomers of butane-


a) CH3CH2CH2CH3 n Butane


b)


Isomers of first three members, i.e., methane, ethane and propane are not possible because they are too short and cannot be branched.


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