A-LevelChemistryNitrogen and sulfur9701/12 · Oct/Nov 2012 · Q351 Mark

Which equations represent stages in the Contact process for manufacturing sulfuric acid? 1 SO2 + ½ O2 → SO3 2 SO2 + H2O → H2SO3 3 H2SO3 + ½ O2 → H2SO4

A1, 2 and 3 are correct

B1 and 2 only are correct

C2 and 3 only are correct

D1 only is correct

✓ Correct answer

D: 1 only is correct

Oracle Prep sorts past-paper questions by topic, so you can drill Nitrogen and sulfur and see which topics are most likely to come up next.

Topic: Nitrogen and sulfur, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2012 Paper 1 Variant 2, question 35.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Which statement about nitrogen or its compounds is correct?

Nitrogen dioxide gas is produced when petrol is burned in car engines. Which acids are made in the atmosphere as a re…

The product of the Contact process is Z. Which reaction or process leads to the formation of a gas that can neutralis…

Compound L contains carbon atoms. It is analysed in a mass spectrometer. The table shows the relative abundance of th…

The halogens chlorine, bromine and iodine show trends in chemical and physical properties down the group. Table 3.1 s…

2 Many oxidising agents are able to oxidise acidified potassium iodide to iodine in acidic conditions. The amount of …