A-LevelChemistryChemical periodicity9701/12 · May/June 2010 · Q161 Mark

Which element of the third period requires the least number of moles of oxygen for the complete combustion of 1 mol of the element?

Aaluminium

Bmagnesium

Cphosphorus

Dsodium

✓ Correct answer

D: sodium

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Topic: Chemical periodicity, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2010 Paper 1 Variant 2, question 16.

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