MHT CET Chemistry Question (2026) — Solution

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An allylic halide is a compound in which the halogen atom is bonded to an sp^3 hybridized carbon atom that is adjacent to a carbon-carbon double bond (C=C). In CH _3 - CH _2 - CH _2 - X , the halogen is attached to an sp^3 carbon of an alkane chain, making it an alkyl halide. In C _6 H _5 - CH _2 - X , the halogen is attached to an sp^3 carbon adjacent to a benzene ring, making it a benzylic halide. In CH _2 = CH - CH _2 - X , the halogen is attached to an sp^3 hybridized carbon atom which is directly bonded to a carbon-carbon double bond. This is an allylic halide. In CH _3 - CH = CH - X , the halogen is attached directly to an sp^2 hybridized carbon of a double bond, making it a vinylic halide. Answer: CH _2 = CH - CH _2 - X