Answer:
The dibromobutanes drawn are:
i. 1,1-dibromocyclobutane
ii. 1,3-dibromocyclobutane
iii. 1,2-dibromocyclobutane
Explanation:
The diagrams of three different dibromocyclobutanes are shown in the attachment below. The dibromobutanes drawn are:
i. 1,1-dibromocyclobutane
ii. 1,3-dibromocyclobutane
iii. 1,2-dibromocyclobutane