Which of the following is a correct product of benzene substitution reaction with BR2? So remember here we have the bromanation of benzene where we're going to substitute out a hydrogen on benzene for a bromine.
A doesn't work because we substituted in somehow an iron, which doesn't work. B doesn't work because we only substitute in one bromine, not 2C. Doesn't work because the H is still there.
The answer here is D because there was an H here and we substituted it out to get the bromine there, creating bromobenzene as our answer. So here option D is the correct answer.
