O-LevelChemistryAcids, Bases & Salts5070/11 · May/June 2021 · Q241 Mark

Two incomplete statements about the preparation of an insoluble salt are given. .......1....... can be used to prepare insoluble salts, such as .......2....... . The salt is collected by ......3...... and it is then .......4....... . Which words correctly complete gaps 1–4?

Aprecipitation, barium nitrate, filtration, evaporated

Bprecipitation, lead sulfate, evaporation, washed and dried

Cprecipitation, lead sulfate, filtration, washed and dried

Dtitration, barium nitrate, evaporation, washed and dried

✓ Correct answer

C: precipitation, lead sulfate, filtration, washed and dried

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

Topic: Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2021 Paper 1 Variant 1, question 24.

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