Cuban National Chemistry Contest 2022

This contribution compiles the problems, solutions and results of the Cuban chemistry olympiad for high school students celebrated nationwide in 2022. The Cuban National Chemistry Contest (CNQ, Concurso Nacional de Química, official name in Spanish) is a yearly competition intended to stimulate high school students the study chemical sciences during their bachelor's. It is sponsored by the Cuban Ministry of Education (MINED, official acronym in Spanish). Tenth-, eleventh- and twelfth-graders (15-17 years old, on average) are welcome to participate. This event is preceded by the Municipal Contest at each high school and the Provincial Contest in every province of Cuba. Top winners of the latter are invited to participate in the national event. This Cuban chemistry olympiad takes place at the Vocational High School for Exact Sciences (IPVCE, official acronym in Spanish) in every province. It is organized as a two-day event in February or March every year. During the competition, the students try to solve two sets of theoretical or theoretical-practical problems elaborated by previous olympists and mentors. The qualification of the exams is performed in Havana by a tribunal integrated by selected teachers from all over the country. The highest scores are priced with gold, silver and bronze medals. Top winners can choose any career in science and the university they like the most to continue their studies with no need for additional requisites. In addition, they are part of the national pre-selection and are invited to Havana for a short training period. After a final selection round, the national team for the international chemistry olympiads is formed.
As a particularity of the 2022 national contest, the Faculty of Chemistry of the University of Havana designed the problems. In the contest, there were two theoretical problem sets following the same format employed in previous years. The first-day exam was intended for all grades (common problem set) and had four problems. The second-day exam consisted of individual problem sets containing three problems per grade. Herein, the problem sets are provided in the official Spanish versions and English translations. Also, a booklet of Preparatory Problems was elaborated to guide the preparation of students and mentors. The booklet consisted of carefully selected tasks to exercise theoretical topics of advanced difficulty. The annexes compile the current version of the organic chemistry syllabus for the chemistry contest of twelve graders.

本数据集收录了2022年全国性高中生古巴化学奥林匹克竞赛的赛题、解题方案与竞赛结果。古巴全国化学竞赛（Cuban National Chemistry Contest，缩写CNQ，西班牙语官方名称为Concurso Nacional de Química）是一项年度赛事，旨在激励高中生在中学阶段深耕化学科学学习。该赛事由古巴教育部（西班牙语官方缩写为MINED）主办，面向十年级、十一年级及十二年级学生（平均年龄15至17岁）开放报名。赛事选拔流程始于各高中校内的市级竞赛，随后在古巴各省份举办省级竞赛，省级竞赛的优胜者将获得晋级全国赛的资格。本届古巴化学奥林匹克竞赛每年于2月或3月举办，为期两天，举办地点为古巴各省份的精准科学职业高中（西班牙语官方缩写为IPVCE）。竞赛期间，选手需完成由往届竞赛选手与指导教师命制的两套理论或理论结合实践赛题。赛事的评审与成绩认定工作由来自全国各地遴选教师组成的评审团在哈瓦那完成，将为高分选手颁发金、银、铜奖牌。优胜者可自主选择任意理工科专业及心仪高校继续深造，无需额外考核或资质审核。此外，优胜者将纳入国家集训预选名单，并受邀前往哈瓦那参加短期集训，经最终选拔环节后，将组建代表古巴参加国际化学奥林匹克竞赛的国家队。
作为2022年全国赛的特色，本届赛题由哈瓦那大学化学学院命制。本届竞赛共设置两套理论赛题，赛题格式与往届保持一致：首日考试为全年级统一赛题，包含四道赛题；次日考试为分年级专属赛题，每个年级各设三道赛题。本数据集中同时提供官方西班牙语版及英语译版的赛题内容。此外，本次赛事还编制了备考赛题手册，用于指导学生及指导教师开展赛前准备，该手册收录了精心遴选的高难度理论知识点练习题。附录部分收录了十二年级学生化学竞赛现行的有机化学考试大纲。