Czechia Category A Past Exams (IChO Major Path)
Category A is the top tier of the Czech Chemistry Olympiad, targeting students in the final two years of gymnasium (~age 18). It is the primary IChO selection pathway: top performers advance through regional and national rounds, with the top 16 invited to theory camp, the top 8 to practical camp, and the final 4 forming the Czech IChO team.
Exam content reaches advanced inorganic and organic chemistry, physical chemistry, and analytical problem-solving at pre-university level.
Since 2021, Category A and E share the same theoretical exam papers.
Past Exams Archive
2027
| Round |
Subject |
Question |
Solution |
| School |
Theory |
Link |
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| School |
Experiment |
Link |
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2026
2025
2024
2023
2022
2021
2020
| Round |
Subject |
Question |
Solution |
| National |
Theory |
Link |
Link |
| National |
Experiment |
Link |
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| Regional |
Theory |
|
Link |
| Regional |
Experiment |
|
Link |
| School |
Theory |
Link |
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| School |
Experiment |
Link |
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2019
| Round |
Subject |
Question |
Solution |
| National |
Theory |
Link |
|
| National |
Experiment |
Link |
Link |
| Regional |
Theory |
|
Link |
| Regional |
Experiment |
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|
| School |
Theory |
|
Link |
| School |
Experiment |
Link |
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| School |
Test |
|
Link |
2018
| Round |
Subject |
Q/A |
Download |
| National |
Theory + Experiment |
Question + Solution |
Link |
| Regional |
Theory + Experiment |
Question + Solution |
Link |
| School |
Theory |
Question |
Link |
| School |
Test |
Question + Solution |
Link |
2017
| Round |
Subject |
Q/A |
Download |
| National |
Theory + Experiment |
Question + Solution |
Link |
| Regional |
Theory + Experiment |
Question + Solution |
Link |
| School |
Theory + Experiment |
Question + Solution |
Link |
| School |
Test |
Question + Solution |
Link |
2015
| Round |
Subject |
Q/A |
Download |
| Regional |
Theory + Experiment |
Question |
Link |
| Regional |
Theory + Experiment |
Solution |
Link |
| School |
Theory + Experiment |
Question |
Link |
| School |
Theory + Experiment |
Solution |
Link |
| School |
Test |
Solution |
Link |
2014
| Round |
Subject |
Q/A |
Download |
| Regional |
Theory + Experiment |
Question |
Link |
| School |
Theory + Experiment |
Question |
Link |
| School |
Test |
Question |
Link |
| School |
Test |
Solution |
Link |
2013
| Round |
Subject |
Q/A |
Download |
| Regional |
Theory + Experiment |
Question |
Link |
| Regional |
Theory + Experiment |
Solution |
Link |
| School |
Theory + Experiment |
Question |
Link |
| School |
Theory + Experiment |
Solution |
Link |
| School |
Test |
Question |
Link |
2012
| Round |
Subject |
Q/A |
Download |
| Regional |
Theory + Experiment |
Question |
Link |
| School |
Theory + Experiment |
Solution |
Link |
2011
| Round |
Subject |
Q/A |
Download |
| Regional |
Theory + Experiment |
Solution |
Link |
| School |
Theory + Experiment |
Question |
Link |
| School |
Theory + Experiment |
Solution |
Link |