You need to substitute one hydrogen with bromine on an aromatic ring. What reagents do you use?

Question

Quizplus · Accepted Answer

The best reagents to use for this reaction are Br2 and FeBr3 as a catalyst. This is known as the bromination reaction and it is commonly used to introduce a bromine atom onto an aromatic ring. Option C gives the correct reagents (FeBr3 instead of FeBr2) and is the best choice. Option A is incorrect because HBr alone is not enough to substitute a hydrogen with bromine on an aromatic ring. Option B is incorrect because heat alone is not enough to perform this reaction. Option D is incorrect because the mixture of HBr and conc. H2SO4 is used as a general method to introduce a functional group to a molecule, but not specifically for bromination. Option E is incorrect because radiation is not necessary for the bromination reaction.

You Need to Substitute One Hydrogen with Bromine on an Aromatic