A-LevelChemistryNitrogen and sulfurMay/June 2011Paper 1 Q181 Mark
In the Contact process, what is the nature of the gaseous product and what is the identity of the catalyst?
Anature of gaseous product: acidic, catalyst: Fe
Bnature of gaseous product: acidic, catalyst: V2O5
Cnature of gaseous product: basic, catalyst: Fe
Dnature of gaseous product: basic, catalyst: V2O5
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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...
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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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