Which of the following is an example of vic-dihalide?

(i) Dichloromethane

(ii) 1,2 -dichloroethane

(iii) Ethylidene chloride

(iv) Allyl chloride

<p><span data-teams="true">This is a multiple choice answer as classified in NCERT Exemplar</span></p><p>The Correct Answer is Option (iv).</p><p>Geminal halides or gem-dihalides and vicinal halides or vic-dihalides are dihaloalkanes with the same halogen. Vic-dihalides are dihaloalkanes with halogen atoms on two adjacent carbon atoms, whereas Gem-dihalides are molecules with halogen atoms on two adjacent carbon atoms. Gem-dihalides are called alkylidene halides in the conventional naming system, whereas vic-dihalides are called alkylene dihalides. Because dichloromethane has just one carbon, it cannot contain neighbouring halogen atoms. Two carbon atoms are sandwiched between two halogen atoms in 1,2-dichloroethane. Ethylidene chloride is a gem-dihalide, as its name implies. There is only one chlorine atom in allyl chloride.</p>

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