Answer:
The structures are shown below
Explanation:
The Lewis structure is done with the elements represented by its letter signal, and the bonds between the atoms, representing the free pairs of electrons. At C₂H₂Br₂, there is a double bond between carbons, and each carbon can be bond to hydrogen or brome. The only brome has lone pairs because it's in group 7, so it has 3 lone pairs.
The three possible structure is shown below. Only the third is nonpolar because the dipole moments are canceled.
