# Constitutional isomers of cis-1,2-dibromocyclopentane

The following is a problem from 'Fundamentals of Organic Chemistry' by McMurry-

Draw two constitutional isomers of cis-1,2-dibromocyclopentane.

Constitutional isomers must have different connections. But the question specifies everything including the spatial arrangement. I don't get how there can be constitutional isomers for the above-mentioned compound.

Hence, any molecule with the formula $\ce{C5H8Br2}$ that differs in connectivity from a cyclopentane with two vicinal bromine atoms should be a valid answer. Two such isomers are given by simply permuting the positions of the bromines (i.e., 1,1-dibromocyclopentane and 1,3-dibromocyclopentane). Of course, there are numerous other possible answers.