Question

Identify the correct statement about nomenclature of alkylidene dihalides.

• A. Dihaloalkanes in which two halogen atoms of the same type are present on the same carbon atom are called alkylidene dihalides.
• B. In common naming system these are called as alkylene dihalides
• C. In the IUPAC system, the locants for the two halogen atoms are prefixed to the name of dihaloalkane.
• D. Both $A$ and $C$

Answer 1

The correct option is D Both $A$ and $C$

$C{H}_{3}CH{X}_2$ ethylidene dihalide or 1, 1-dihaloethane.

Alkylidene dihalides are also known as geminal halides. The term gem has derived from geminal meaning for the same position. The two similar halogen atoms are attached to the same carbon atom.

Hence, the correct option is $D$