Which among the following is NOT Alliylic halide?

Step-by-step solution

An allylic halide requires the halogen to attach to an sp ^3 carbon directly adjacent to a carbon-carbon double bond. In compound A, CH ₂= CH - CH ₂- X , the halogen is bonded to a carbon that is sp ^3 and adjacent to the double bond, so it is allylic. In compound B, CH ₃- CH = CH - CH ₂- X , the halogen is attached to an sp ^3 carbon adjacent to the double bond, so it is allylic. In compound C, CH ₃- CH ₂- CH = CH - CH ₂- X , the halogen is connected to an sp ^3 carbon directly adjacent to the double bond, so it i