Give the IUPAC name of the following compound: CH₃CHBr₂

(i) The functional group in CH₃CHBr₂ is bromine.
(ii)    Since it has two C-atoms and 2-Br atoms, it should be named as dibromo ethane.
(iii)    Both the bromine atoms are attached to the same C-atom and so the carbon chain should be numbered from the C-atom attaching bromine atoms. The structure of CH₃CHBr₂ is

Common name: Ethylidene dibromide.
IUPAC name: 1, 1 dibromo ethane.