On-line Problem Sets

Please download the relevant problem set(s). An on-line form will be available starting in late October for all registered students to submit their answers to each problem set; the system will then display which questions have been answered correctly. Students can submit their answers at any time once the on-line form has been made available. Generally, however, they should aim to submit their answers for each problem set no later than 1 week after the next problem set becomes available. The final deadline for answer submission will be when the take-home exam is mailed out to participating students.

Note: the first problem set will be treated as a “practice” set; you will be able to submit your answers on-line, but the results will not be counted as part of your total for the on-line program.

Problem Sets

Problem sets for the 2019-20 program will be posted starting in late September or early October

Problems for 2019-20:

  1. October problem set – English (version français)
  2. November problem set – English (version français)
  3. December problem set – English (version français)
  4. January problem set – English (version français)

On-Line Answer Submission:

The deadline for submission of all problem set answers is the end of Sunday March 15th 2019

You must have registered before you can submit your problem set answers. If you have forgotten your registration details, or have any questions or concerns, please contact the on-line program co-ordinator.

To submit your answers, login using the form below, then select the problem set that wish to answer from the list on the resulting page and click on Write Test. Please note that only those tests that you have not yet attempted will be listed.

Important: For security reasons, we are no longer able to send an e-mail with your results. You will need to print out the results page so that you have a record of which questions were answered correctly.

E-mail address
ID Number


The first few problem sets will cover and build on components of a typical grade 12 chemistry curriculum. Subsequent problem sets while reflect the increasing level of difficulty associated with the practice problems published by the host IChO country. Students may wish to investigate the possibility of auditing 1st year chemistry courses at their local college or university where evening classes are available. Alternatively, students can make use of podcasts available through iTunesU (via the iTunes store or using the iTunesU app) or the MIT OpenCourseWare program. Please see the Resources & Syllabus page for suggested texts, useful links, and other information.

Note: If you find an on-line resource that is particularly helpful, let us know so we can pass that information on to others!