Category A Past Exams (IChO Major Path)

2026

Round	Subject	Question	Solution
National	Theory	Link	Link
National	Experiment	Link	Link
Regional	Theory	Link	Link
Regional	Experiment	Link	Link
School	Theory	Link	Link
School	Experiment	Link	Link
School	Test	Link	Link

2025

Round	Subject	Question	Solution
National	Theory	Link	Link
National	Experiment	Link	Link
Regional	Theory	Link	Link
Regional	Experiment	Link	Link
School	Theory	Link	Link
School	Experiment	Link	Link
School	Test	Link	Link

2024

Round	Subject	Question	Solution
National	Theory	Link	Link
National	Experiment	Link	Link
Regional	Theory	Link	Link
Regional	Experiment	Link	Link
School	Theory	Link	Link
School	Experiment	Link	Link
School	Test	Link	Link

2023

Round	Subject	Question	Solution
National	Theory	Link	Link
National	Experiment	Link	Link
Regional	Theory	Link	Link
Regional	Experiment	Link	Link
School	Theory	Link	Link
School	Experiment	Link	Link
School	Test	Link	Link

2022

Round	Subject	Question	Solution
National	Theory	Link	Link
National	Experiment	Link	Link
Regional	Theory	Link	Link
Regional	Experiment	Link	Link
School	Theory	Link	Link
School	Experiment	Link	Link
School	Test	Link	Link

2021

Round	Subject	Question	Solution
National	Theory	Link	Link
National	Experiment	Link	Link
Regional	Theory	Link	Link
Regional	Experiment	Link	Link
School	Theory	Link	Link
School	Experiment	Link	Link
School	Test	Link	Link

2020

Round	Subject	Question	Solution
National	Theory	Link	Link
National	Experiment	Link
Regional	Theory		Link
Regional	Experiment		Link
School	Theory	Link
School	Experiment	Link

2019

Round	Subject	Question	Solution
National	Theory	Link
National	Experiment	Link	Link
Regional	Theory		Link
Regional	Experiment
School	Theory		Link
School	Experiment	Link
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