<p>Ok. I've never taken the exam before and first must persuade my school to sign up for it. So a few questions about it...</p>
<p>1: When is it administered?
2: How will finalists be selected for the second round of testing?
3: Exam difficulty? (as compared to SAT II Chem exam difficulty and AMC 12 difficulty)
4: Any organic chem? Any topics not covered in AP CHem/SAT II CHem.</p>
<p>I took the USAChO last year and I can answer some of your questions.</p>
<p>If I recall correctly, I took the first (local) test in Feb though it's different depending on where you are.</p>
<p>The cutoff depends on where you live. I'm in the Chicago area and 11 people qualified last year to take the National test. I think the cutoff was around 53-55 out of 60 questions.</p>
<p>There were like 5-6 organic chem questions in the local test but they were really basic and I got them all right by guessing.</p>
<p>The National Test is a 5 hr long test with multiple choice, free response, and lab portion. This test is VERY hard... much harder than SAT II or AP. Especially the free response section, I got murdered by it. The MC & Lab aren't too bad.</p>