The exam assesses foundational chemistry concepts, focusing on hydrocarbons, polymers, reaction rates, chromatography, and water purification. Key topics include fractional distillation, properties of hydrocarbons, testing for ions and gases, reversible reactions, and the Haber process. Practical tasks involve calculating Rf values, analyzing experimental results, and determining reaction conditions for industrial processes. The paper emphasizes sustainability, environmental impact, molecular structures, and applications in everyday and industrial chemistry. Keywords: GCSE Chemistry, hydrocarbons, polymers, reaction rates, chromatography, water purification, sustainability, reversible reactions, fractional distillation, Haber process.