A-LevelChemistryHydrocarbonsFeb/Mar 2019Paper 1 Q221 Mark
Many reactions take place in the engine and catalytic converter of a car. Which pair of substances is produced both by the reactions in a car engine and in a catalytic converter?
Acarbon dioxide and unburnt hydrocarbons
Bcarbon dioxide and water
Ccarbon monoxide and nitrogen
Dcarbon monoxide and unburnt hydrocarbons
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of hydrocarbons within the Chemistrysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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