Which one of the following is an allylic halide?

Options

A. 2-chlorobutane
B. Chloroethane
C. 3-bromopropene
D. 2-chlorotoluene

Answer

D

Explanation

When halogen atom attached with adjacent position of unsaturation, the posiiton is called allylic position and compound is called allylic halide.
In 3-bromopropene, halogen atom (bromine) attached with adjacent position of double bond, so compound is called allylic bromide.
`CH_(2)=underset(("Allylic halide"))underset("3-bromopropene")(CH-CH_(2))-Br`