Types of Dihalides Primary,Secondary,Tertiary Alkyl Halides R CH,-X R—CH,一X R-CH-X R-C-X methyl halide primary (1)halide secondary (2)halide R tertiary (3)halide 2013 Pearson Education.Inc Br 9-9 -C- a geminal dibromide a vicinal dichloride Geminal dihalide:Two halogen atoms are bonded to the same carbon. Vicinal dihalide:Two halogen atoms are bonded to adjacent carbons. Types of Dihalides Primary, Secondary, Tertiary Alkyl Halides ◼Geminal dihalide: Two halogen atoms are bonded to the same carbon. ◼Vicinal dihalide: Two halogen atoms are bonded to adjacent carbons