Gem-dihalides are dihaloalkanes which have two halogen atoms attached to the same carbon atom in a molecule. They are also known as alkylidene halides. Ethylene dichloride as a molecule is a vicinal dihalide, which has chlorine atoms attached to adjacent carbon atoms. Benzyl chloride has only one chlorine atom. Ethylidene chloride is a gem-dihalide as indicated by the name of the molecule. Methylene chloride is known as dichloromethane by IUPAC nomenclature. It contains two chlorine atoms attached to the same single carbon atom. The correct statements are (i) and (iii).
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