<p>I have both the Princeton Review and the Barron's books. I've heard both are very good for teaching the concepts, but do anyone know how the level of the practice tests in those books compare to the real thing? I know PR is generally around the right level and Barron's is usually way off the mark, but is that the case for chemistry?</p>
<p>I used the CD that came with the barron’s book that had two exams and i think the difficulty level was about right. PR was also good and of course the actual CB book. Would not recommend kaplan though, it has wayyy to much math.</p>