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Decoding of Chemistry Olympiad

Decoding of Chemistry OlympiadDecoding of Chemistry OlympiadDecoding of Chemistry Olympiad

Decoding of Chemistry Olympiad

Decoding of Chemistry OlympiadDecoding of Chemistry OlympiadDecoding of Chemistry Olympiad
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  • Home
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  • About
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    • General Overview
    • FAQs
    • Learning Objectives
    • Annotated Solutions
    • Misconception
    • Laboratory
    • Study Camp
    • National2024
  • Classes
    • Introduction
    • Registration
    • Testimony
    • National Preps
    • Summer
    • Open Classes
    • Lecture Notes
  • Resources
    • Youtube Channel
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    • IChO
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    • Mendeleev
    • VChO
    • WUCT&BCT
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  • Consultation
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“The Most Difficult Chemistry Competition on the Planet”

Round 1 - Theory

Round 1 - Theory

Round 1 - Theory

The competition is organized in three rounds, each round lasting 5 hours. In the first round, students take a theory test consisting of 8 questions, each worth 10 points. The maximum score for round one is 80 points.

Round 2 - Theory

Round 1 - Theory

Round 1 - Theory

The second round of theoretical exams includes 5 fields (physical chemistry, inorganic chemistry, organic chemistry, analytical chemistry, life chemistry and polymers), each field has 3 questions. Students will choose one question in each field to work on. The score for each question is 15 points. The maximum score in round two is 75 points.

Round 3 - Lab

Round 1 - Theory

Round 3 - Lab

In round 3, students take a lab practical exam that usually consists of 3 parts, each part worth 25 points. The maximum score for the practice round is 75 points.

IMChO 2022-24

2024 - Shenzhen, China

2023 - Kazakhstan (website down)

2023 - Kazakhstan (website down)

Round 1 Problems

Round 1 Solution

Round 2 Problems

Round 2 Solution

2023 - Kazakhstan (website down)

2023 - Kazakhstan (website down)

2023 - Kazakhstan (website down)

Round 1 Problems

Round 1 Solution

Round 2 Problems

Round 2 Solution

2022 - Uzbekistan (website down)

2023 - Kazakhstan (website down)

2022 - Uzbekistan (website down)

Round 1 Problems

Round 1 Solution

Round 2 Problems

Round 2 Solution

Mendeleev 2021

IMO55_2021_T1_problems_eng (pdf)

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IMO55_2021_T1_solutions_eng (pdf)

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IMO55_2021_T2_problems_eng-1 (pdf)

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IMO55_2021_T2_solutions_eng (pdf)

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Mendeleev 2020

m2020_enu_tour1_task (pdf)

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m2020_enu_tour1_sol (pdf)

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m2020_enu_tour2_task (pdf)

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m2020_enu_tour2_sol (pdf)

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Mendeleev 2019

m2019_eng_tour1_task (pdf)

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m2019_eng_tour1_sol (pdf)

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m2019_eng_tour2_task (pdf)

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m2019_eng_tour2_sol (pdf)

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Mendeleev 2018

m2018_eng_tour1_task (pdf)

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m2018_eng_tour1_sol (pdf)

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m2018_eng_tour2_task (pdf)

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m2018_eng_tour2_sol (pdf)

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Mendeleev 2017

m2017_eng_tour1_task (pdf)

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m2017_eng_tour1_sol (pdf)

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m2017_eng_tour2_task (pdf)

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m2017_eng_tour2_sol (pdf)

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Mendeleev 2016

m2016_ENG_tour1_task (pdf)

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m2016_ENG_tour1_sol (pdf)

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m2016_ENG_tour2_task (pdf)

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m2016_ENG_tour2_sol (pdf)

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Mendeleev 2015

m2015_theoreticaltour1tasks-eng (pdf)

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m2015_theoreticaltour1answer-eng (pdf)

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m2015_theoreticaltour2tasks-eng (pdf)

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m2015_theoreticaltour2answer-eng (pdf)

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Mendeleev 2002-2013 (in Russian)

Files coming soon.

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