Chemistry Olympiad Exams

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Local Chemistry Olympiad Exams

Approximately 10,000 U.S. students participate in local Chemistry Olympiad competitions. Exams are administered and coordinated by ACS local sections annually in March. Students are nominated for the U.S. National Chemistry Olympiad competition based on exam scores and teacher recommendations.

Local Exams (2000-2012)



National Chemistry Olympiad Exams

The U.S. National Chemistry Olympiad national exam is a 3-part, 4.5 hour exam administered in late April by ACS local sections. Nearly 900 students participate in the competition each year.

Part I Part II Part III
  • Multiple Choice
  • 90-minutes
  • 60 multiple choice questions
  • Covers broad chemistry topics
  • Problem Solving
  • 105 minutes
  • 8 written questions
  • Covers chemical theories and models
  • Lab Practical
  • 90 minutes
  • 2 laboratory practicals
  • Involves problem solving in the laboratory
National Exams (1999-2012)
Answer key included
2013 2012 2011 2010 2009
2008 2007 2006 2005 2004
2003 2002 2001 2000 1999