O-LevelChemistryAcids, Bases & Salts5070/11 · May/June 2012 · Q241 Mark

Which of the following pairs of compounds react together to produce ammonia? 1. ammonium nitrate and calcium carbonate 2. ammonium nitrate and calcium oxide 3. ammonium sulfate and calcium hydroxide 4. ammonium sulfate and calcium nitrate

A1 and 2 only

B1 and 4 only

C2 and 3 only

D3 and 4 only

✓ Correct answer

C: 2 and 3 only

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 2012 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

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…

An alloy of copper and zinc is added to an excess of dilute hydrochloric acid. Which observations are correct?

From your knowledge of the manufacture of both aluminium and iron, what is the order of chemical reactivity of alumin…

These reactions are used in the manufacture of sulfuric acid. P S + O2 → SO2 Q 2SO2 + O2 ⇌ 2SO3 R SO3 + H2O → H2SO4 W…