The reaction of isobutane with bromine in sunlight can form two monosubstituted products. Draw structures for the two isomers.

Structures of two isomers formed from isobutane and bromine reaction.

Another view of two isomers from isobutane and bromine reaction.

Different representation of two isomers from isobutane and bromine reaction.

Final representation of two isomers from isobutane and bromine reaction.