Question

Ethylidene chloride is a/an _____.
(a) vic-dihalide
(b) gem-dihalide
(c) allylic halide
(d)none of the above

Answer 1

Geminal dihalides are those dihalides in which the same halogen atom is present on the same carbon atom. For example: Geminal dihalides are also known as geminal dihalides. In the common system, they are named as alkylidene dihalides. And the positions on the same carbon atom are called germinal positions.

Complete answer: Ethylidene chloride is a gem-dihalide. Gem-Dihalide is a compound that have two halogen atoms on the same carbon atom.
Gem Dihalide define as dihalide in which both the hydrogen replace halogen from one carbon and vicinal dihalide in which both hydrogen replace from adjacent carbon. Therefore gem dihalide named like alkylidene chloride and vicinal dihalide as alkylene dihalide.
A gem-dihalide is ethylidene chloride. A compound with two halogen atoms on the same carbon atom is known as Gem Dihalide. The composition of gem-dihalide is as follows.
Isomers include ethylene chloride and ethylidene chloride. Determine which statements are true. (i) When both compounds are treated with alcoholic $KOH$ , they produce the same substance. (ii) When both compounds are reduced, they produce the same substance.
Hence, the correct option is (b) gem-dihalide.

Additional-Information:- We should always be clear about Ethylene chloride and ethylidene chloride, as both are quite different isomers, students are always confused between the names of both.
The chemical formula of Ethylene Chloride or Vicinal Dihalides is $ClC{H_2}C{H_2}Cl$ .
And, the chemical formula of Ethylidene chloride or Gem Dihalides is $C{H_3}CHC{l_2}$ .

Note:
Hydrolysis of geminal dihalides is an organic reaction. Geminal dihalides with a water molecule or a hydroxide ion are the reactants. Ketones are produced from secondary halides, while aldehydes are produced from primary halides.