A-LevelChemistryChemical bonding9701/12 · May/June 2019 · Q51 Mark

The table shows some properties of four substances. Which substance could be potassium iodide? melting point of solid/°C electrical conductivity when molten A -66 poor B -39 good C 680 good D 1600 poor

Amelting point of solid/°C: -66, electrical conductivity when molten: poor

Bmelting point of solid/°C: -39, electrical conductivity when molten: good

Cmelting point of solid/°C: 680, electrical conductivity when molten: good

Dmelting point of solid/°C: 1600, electrical conductivity when molten: poor

✓ Correct answer

C: melting point of solid/°C: 680, electrical conductivity when molten: good

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, May/June 2019 Paper 1 Variant 2, question 5.

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