Non-Metals

This topic provides an in-depth study of selected non-metals and their compounds, including oxygen, nitrogen, chlorine, sulphur, carbon, and silicon, as detailed in the Zambian Form 4 syllabus. You will learn about their preparation in the laboratory, physical and chemical properties, industrial manufacture, and wide-ranging uses. This includes environmental chemistry aspects like ozone layer protection and carbon cycle implications. ECZ exams commonly test the preparation, properties, and tests for gases like oxygen, ammonia, chlorine, and carbon dioxide. Competence in this area is crucial for answering descriptive and practical-based questions, and it builds a comprehensive understanding of the chemistry of common elements and their impact on society and the environment.