Ethylidene chlori A. vic-dihalide

B. gem-dihalide

C. allylic halide

D. vinylic halide

Gem-dihalides are dihaloalkanes which have two halogen atoms of the same type attached to the same carbon atom in a molecule. The common naming system of gem-dihalides is alkylidene dihalides. Ethylidene dichloride thus is a gem-dihalide. The correct option is (ii).