What this tests
Syllabus point 2.6 — Giant covalent structures, in Atoms, elements and compounds. Difficulty easy (estimated from the question's demands, not a Cambridge rating).
Cambridge IGCSE Chemistry 0620 · 2.6 Giant covalent structures
June 2013 · Paper 12 · Question 26
One real Cambridge question from Atoms, elements and compounds, with the official answer.