A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · May/June 2020 · Q61 Mark

In this question you should assume air contains 21% oxygen. What is the minimum volume of air required to ensure complete combustion of 10 cm³ of butane gas, under room conditions?

A14 cm³

B27 cm³

C65 cm³

D310 cm³

✓ Correct answer

D: 310 cm³

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Topic: Atoms, molecules and stoichiometry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2020 Paper 1 Variant 2, question 6.

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