MHTCET 19 Apr 2026 Shift 2 Paper

Concept:An allylic halide has a halogen atom bonded to an $sp^3$ hybridised carbon that is adjacent to a carbon-carbon double bond.Explanation:Identify the position of the halogen $-\mathrm{X}$ relative to the $C=C$ bond.In option C: $\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{X}$The $-\mathrm{X}$ is attached to the $\mathrm{CH}_2$ carbon, which is $sp^3$ hybridised and directly next to the double bond.Hence, this is an allylic halide.Option D has $-\mathrm{X}$ directly attached to a double-bonded carbon, so it is a vinylic halide.Option B is a benzylic halide, and option A is a simple alkyl halide.Answer:Option C: $\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{X}$