2 
Nomenclature
6 2 
Nomenclature
Rationalised 2023-24
162
Chemistry
chain and vicinal halides or vic-dihalides when halogen atoms are present
on adjacent carbon atoms In common name system, gem-dihalides are
named as alkylidene halides and vic-dihalides are named as alkylene
dihalides In IUPAC system, they are named as dihaloalkanes