Which of the following are correct structural isomers of butane?

Correct Answer: (a) (i) and (iii)

Explanation: Structure (i) is n-butane and structure (iii) is iso-butane. Since the molecular formula is the same, only structures are different. So, (i) and (iii) are isomers while structures (ii) and (iv) have molecular formula C₄H₈.

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Updated on: 10-Oct-2022

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