What this tests
Syllabus point 2.4 — Ions and ionic bonds, in Atoms, elements and compounds. Difficulty medium (estimated from the question's demands, not a Cambridge rating).
Also set in
The same question, as Cambridge printed it in other papers.
Cambridge IGCSE Chemistry 0620 · 2.4 Ions and ionic bonds
June 2010 · Paper 11 · Question 8
One real Cambridge question from Atoms, elements and compounds, with the official answer. Cambridge has printed this question 6 times.