A-LevelChemistryChemical bonding9701/12 · Oct/Nov 2023 · Q101 Mark

In the structure of solid SiO2 each silicon atom is bonded to x oxygen atoms each oxygen atom is bonded to y silicon atoms each bond is a z type bond. What is the correct combination of x, y and z in these statements?

A2, 1, covalent

B2, 1, ionic

C4, 2, covalent

D4, 2, ionic

✓ Correct answer

C: 4, 2, covalent

Oracle Prep sorts past-paper questions by topic, so you can drill Chemical bonding and see which topics are most likely to come up next.

Topic: Chemical bonding, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2023 Paper 1 Variant 2, question 10.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

The electrical conductivities of two compounds, Y and Z, are shown in the table. conductivity of the compound in the …

Nitrogen and phosphorus are both in Group 15 of the Periodic Table. Phosphorus forms a chloride with the formula PCl₅…

Hydrogen halides are compounds formed when halogens (Group 17 elements) react with hydrogen. The bond polarity of the…

In which reactions does NH₃ behave as a Brønsted-Lowry acid? 1 2NH₃ → NH₂⁻ + NH₄⁺ 2 HSO₄⁻ + NH₃ → SO₄²⁻ + NH₄⁺ 3 Ag⁺ …

Chlorine reacts with hot aqueous sodium hydroxide. Which oxidation states does chlorine show in the products of this …

In which different forms does nitrogen exist in compounds? 1 bonded by a triple covalent bond 2 as part of a cation 3…