A-LevelChemistryNitrogen and sulfurMay/June 2025Paper 1 Q81 Mark
In the Haber process, the reaction between the two gaseous reactants requires the use of a catalyst that contains a transition element. What is the metal and in which mole ratio do the gases react?
A[metal: Fe, mole ratio: 1:2]
B[metal: Fe, mole ratio: 1:3]
C[metal: V, mole ratio: 1:2]
D[metal: V, mole ratio: 1:3]
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of nitrogen and sulfur 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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