O-LevelChemistryAcids, Bases & Salts5070/11 · May/June 2021 · Q221 Mark

Which row shows the pH values for 0.1 mol/dm³ solutions of ammonia, hydrochloric acid, sodium chloride and sodium hydroxide?

A1, 7, 13, 11

B7, 1, 11, 13

C11, 1, 7, 13

D13, 11, 7, 1

✓ Correct answer

C: 11, 1, 7, 13

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 22.

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

Titration of an acid against a base is a method often used in the preparation of salts. Which properties of the acid,…

Which compound will not produce ammonia when heated with ammonium sulfate?

Copper(II) sulfate crystals are separated from sand using the four processes listed below. In which order are these p…

What happens when zinc foil is placed in an aqueous solution of copper(II) sulfate?

In the apparatus shown, gas P is passed over solid Q. No reaction occurs if P and Q are

Which element can only be extracted from its ore using electrolysis?