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A-LevelChemistryChemical periodicity9701/12 · May/June 2020 · Q161 Mark

One molecule of an oxide of element Z reacts with six molecules of water to produce an acidic compound. What is element Z?

Aaluminium
Bphosphorus
Csilicon
Dsulfur

✓ Correct answer

B: phosphorus

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About this question

Topic
Chemical periodicity, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, May/June 2020 Paper 1 Variant 2, question 16.

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