Combined Science (A) J250,04 Foundation June 2018, OCR GCSE Past Papers with Mark Schemes
OCR
GCSE
Comined Sciences (J250)
Jun
2018
This chemistry exam paper evaluates concepts such as dynamic equilibrium, reactivity series, crude oil fractionation, and the evolution of Earth′s atmosphere. Key topics include catalysts, Group trends, metal displacement reactions, and cracking of hydrocarbons. It emphasizes problem-solving, data interpretation, and analysis of practical experiments, including rate of reaction and life-cycle assessments. The paper integrates real-world applications like desalination and environmental impacts of pollutants. Total marks: 60.
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