. 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.
Ans. • The organic compounds having the same molecular formula but different structures are known as isomers.
• Isomers of C4H10:
• Isomers of first three members, i.e., methane, ethane and •propane are not possible because they are too short and cannot be branched