What is the ACS exam? The ACS (American Chemical Society) standarized exam is on the topic of organic chemistry. This is a 70 question, multiple-choice test. Hope College has posted a forum called ChemBoard. On the ChemBoard you can find a variety of ACS-like exams to practice: http://www.chem.hope.edu/~chemboard/s07/messages/17/871.html?1176479022