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An optically active acyclic hydrocarbon (X) undergoes catalytic hydrogenation to give an optically iHydrocarbons Chemistry Question

Question

An optically active acyclic hydrocarbon (X) undergoes catalytic hydrogenation to give an optically inactive compound $C_6H_{14}$. Identify the original hydrocarbon (X).

Answer: A

💡 Solution & Explanation

3-methyl-1-pentene ($CH_2=CH-C^*H(CH_3)CH_2CH_3$) has a chiral center. Hydrogenation saturates the double bond to an ethyl group, yielding 3-methylpentane, which possesses a plane of symmetry and is optically inactive.

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