Oxides: past paper questions

Where the questions come from

• Question 19May/June 2026, paper 12Multiple choice1 mark

  The formulae of three oxides are listed. 1 $\text{CuO}$ 2 ${\text{SO}}_2$ 3 $\text{ZnO}$ Which oxides react with $\text{NaOH}(\text{aq})$ to form a salt?

  Try this question
• Question 18Oct/Nov 2025, paper 11Multiple choice1 mark

  Some properties of a solid oxide are listed. ● It reacts with dilute sulfuric acid giving a salt and water. ● It is insoluble in water.

  Try this question
• Question 20Oct/Nov 2024, paper 11Multiple choice1 mark

  Which statement about oxides is correct?

  Try this question
• Question 21Oct/Nov 2023, paper 11Multiple choice1 mark

  Which two oxides will both react with aqueous sodium hydroxide?

  Try this question
• Question 1May/June 2026, paper 21Structured5 marks

  Choose from the following compounds to answer the questions.

  Try this question
• Question 21May/June 2025, paper 11Multiple choice1 mark

  Which element reacts with oxygen to produce an amphoteric oxide?

  Try this question
• Question 23Oct/Nov 2024, paper 12Multiple choice1 mark

  Oxide Q reacts with separate samples of dilute hydrochloric acid and aqueous potassium hydroxide. Both reactions produce a salt and water. Which statement is correct?

  Try this question
• Question 20Oct/Nov 2023, paper 12Multiple choice1 markHas a diagram

  Information about three oxides, Q, R and T, is given. Q reacts with dilute sulfuric acid to form a salt and water. R reacts with both acids and bases to form a salt and water.

  Try this question
• Question 1May/June 2026, paper 22Structured5 marks

  Choose from the following compounds to answer the questions.

  Try this question
• Question 28May/June 2025, paper 12Multiple choice1 mark

  The iron(III) oxide used in a blast furnace contains the impurity silicon(IV) oxide, ${\text{SiO}}_2$. Which reaction removes the silicon(IV) oxide?

  Try this question
• Question 5May/June 2024, paper 21Structured11 marks

  When a sample of zinc sulfite is heated in a closed system, an equilibrium mixture is formed. $$\mathrm{Z}\mathrm{n}\mathrm{S}{\mathrm{O}}_3(\mathrm{s})\rightleftharpoons \mathrm{Z}\mathrm{n}\mathrm{O}(\mathrm{s})+\mathrm{S}{\mathrm{O}}_2(\mathrm{g})$$ The forward reaction is endothermic.

  Try this question
• Question 1May/June 2023, paper 21Structured6 marks

  Choose from the following oxides to answer the questions.

  Try this question
• Question 7May/June 2025, paper 21Structured6 marks

  Aluminium is used in the manufacture of aircraft and food containers. Aluminium is resistant to corrosion by water and oxygen. Give one other reason why aluminium is used in the manufacture of aircraft.

  Try this question
• Question 5May/June 2024, paper 22Structured11 marks

  When a sample of zinc carbonate is heated in a closed system, an equilibrium mixture is formed. $${\mathrm{Z}\mathrm{n}\mathrm{C}\mathrm{O}}_3(\mathrm{s})\rightleftharpoons \mathrm{Z}\mathrm{n}\mathrm{O}(\mathrm{s})+{\mathrm{C}\mathrm{O}}_2(\mathrm{g})$$ The forward reaction is endothermic.

  Try this question
• Question 1May/June 2023, paper 22Structured6 marks

  Choose from the following oxides to answer the questions. CO ${\mathrm{C}\mathrm{O}}_2$ CaO CuO ${\mathrm{F}\mathrm{e}}_2{\mathrm{O}}_3$ ${\mathrm{H}}_2\mathrm{O}$ ${\mathrm{S}\mathrm{O}}_2$ ${\mathrm{S}\mathrm{i}\mathrm{O}}_2$ ZnO Each oxide may be used once, more than once or not at all. State which oxide: is neutral

  Try this question