Problems of 57th International Chemical Olympiad (Practical Section)

• Yuwen Liu ^1, ,
• Jie Zheng ^2, ,
• Le Li ^3, ,
• Dongchu Yang ^4, ,
• Min Zhu ^5, ,
• Xiaotao Zheng ^6, ,
• Long Zhou ^7, ,
• Jian Pei ^{2, ,}

• 1.

  College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China;

• 2.

  College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;

• 3.

  School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China;

• 4.

  Chengdu No. 7 High School, Chengdu 610041, China;

• 5.

  Xi'an Tieyi Middle School, Xi'an 710054, China;

• 6.

  Guangdong Experimental High School, Guangzhou 510375, China;

• 7.

  Changsha Changjun High School, Changsha 410002, China

Corresponding author: Jian Pei, jianpei@pku.edu.cn

• Received Date: 27 August 2025
  Accepted Date: 05 September 2025
  Available Online: 09 September 2025