Which halide is a vinylic halide?
A vinylic halide has the halogen on a carbon of a C=C bond. CH₃CH=CHBr (1-bromopropene) is vinylic.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms