Chemistry (B) J258,03 Higher June 2023, OCR GCSE Past Papers with Mark Schemes
OCR
GCSE
Chemistry B (J258)
Jun
2023
This paper tests a range of GCSE Chemistry topics, such as the properties and reactivity of elements, carboxylic acids, and the greenhouse effect. It includes calculations of yield, reaction rates, and energy usage comparisons. Practical methods, such as electrolysis of aluminium oxide, flame tests, and separation techniques, are assessed. The environmental impacts of industrial processes, catalytic converters, and metal corrosion are explored. Critical analysis, problem-solving, and understanding of chemical principles are emphasized throughout.
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omer uner 
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