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Classification of Hydrocarbons and Isomerism Classification of hydrocarbons, structural & geometrical isomerism #Chain Isomerism #Isomerism

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What is the minimum number of carbon atoms an alkane needs to show chain isomerism?

Verified Answer & Explanation⌄

Correct Answer: B) 4

Concept Explanation

Propane has no chain isomer, but C₄H₁₀ exists as n-butane and 2-methylpropane. Therefore, four carbons are required.

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