National Chemistry Olympiad Exam
Number of Nominees
|ACS Members||USNCO Nominees||ACS Members||USNCO Nominees|
The national examination is scheduled to be given during the period of nine consecutive days.
No more than two students from any given school can compete in the National Exam. The 20 top-scoring students are invited to attend a study camp to compete for a spot in the U.S. team.
National Exams are often hosted by ACS Local Sections at local universities and colleges. ACS Local Sections recognize USNCO National Exam nominees with certificates, monetary prizes, plaques, or other gifts. Many Local Sections honor the students, their teachers, parents and volunteers at award banquets, luncheons and dinners.
National Examination Administration
The three-part, 4 hour and 45 minutes exam consists of the following (may be administered in any order):
|Part I||Part II||Part III|
How to Prepare
ACS calculates the average number of correctly answered questions by topic area. Based on this average, each student's score in a particular topic is compared to the overall average and rated as: Below Average, Average, Above Average, or Outstanding Performance.
Only student scores for Part I (multiple-choice) are sent to the Local Section coordinators to be distributed to students.
Based on the score of their overall performance, some students are recognized with High Honors and Honors and receive a certificate from the USNCO national office. Approximately he top 50 students are recognized as High Honors and the next 100 as Honors. The list of High Honor and Honor students is published on the USNCO website.