Answer
4-bromobenzoic acid or p-bromobenzoic acid
Work Step by Step
There is a -COOH group attached to the benzene ring so it's a benzoic acid. And since there is a bromine attached to the 4rd carbon (because the carbon attached to the -COOH is the 1st carbon), it is called 4-bromobenzoic acid. It can also be called p-bromobenzoic acid because the bromine is at the para position.
