0653.C2.3.05 — Describe the giant lattice structure of ionic compounds as a regular arrangement of alternating positive and negative ions, exemplified by s: past paper questions
Real questions on 0653.c2.3.05 — describe the giant lattice structure of ionic compounds as a regular arrangement of alternating positive and negative ions, exemplified by s
The newest 5 of 5 written questions. Open one to see it on the real paper.
- 0653/33 · May/June 2025 · Q4a[3]
Complete the sentences to explain why lithium fluoride has a high melting point. Choose words from the list. Each word may be used once, more than once or not at all. configuration molecules attraction weak conduction strong gases solids An ionic bond is a electrostatic between ions with opposite charges.
See it on the paper → - 0653/41 · May/June 2025 · Q6c[2]
Describe the arrangement of ions in solid sodium chloride.
See it on the paper → - 0653/43 · May/June 2025 · Q5c(i)[1]
State the type of chemical reaction that forms an insoluble salt from two aqueous solutions.
See it on the paper → - 0653/43 · May/June 2025 · Q5c(ii)[1]
Name the other salt that forms in this reaction.
See it on the paper → - 0653/43 · May/June 2025 · Q6a(i)[4]
Complete Table 6.1. Table 6.1 molecule formula of product Br 2 (aq) reaction conditions room temperature H 2 O(g) C 2 H 5 OH C 2 H 6
See it on the paper →
What examiners said
Most candidates successfully completed the first sentence. Fewer candidates knew that ionic compounds are solids at room temperature and pressure.
— Examiner report, May/June 2025, 0653/33 Q4(a) (Cambridge)
The description of the sodium chloride structure is stated in the syllabus and some candidates had learned it and gained full credit. Full credit was also awarded to candidates who could use their own words to describe the structure in sufficient detail. Full credit could also be awarded for a clear, labelled diagram.
— Examiner report, May/June 2025, 0653/41 Q6(c) (Cambridge)
Only a few candidates recognised the description in the question as a precipitation reaction.
— Examiner report, May/June 2025, 0653/43 Q5(c)(i) (Cambridge)
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