Oxides: past paper questions

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• Question 23May/June 2026, paper 11Multiple choice1 mark

  Which oxide forms a basic solution in water?

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• Question 19Oct/Nov 2025, paper 11Multiple choice1 mark

  Four oxides are listed. 1 lithium oxide 2 phosphorus oxide 3 sodium oxide 4 sulfur dioxide Which oxides are basic?

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

  Four different groups of oxides are shown.

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• Question 19Oct/Nov 2023, paper 12Multiple choice1 mark

  Which element forms an oxide that reacts with an aqueous solution of a base?

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• Question 21May/June 2026, paper 21Multiple choice1 mark

  Tin(II) oxide, $\text{SnO}$, is amphoteric. Which reactions show that tin(II) oxide is amphoteric?

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• Question 22Oct/Nov 2025, paper 21Multiple choice1 mark

  Four metal oxides are listed. 1 $\mathrm{A}{\mathrm{l}}_2{\mathrm{O}}_3$ 2 $\mathrm{C}\mathrm{a}\mathrm{O}$ 3 $\mathrm{C}\mathrm{u}\mathrm{O}$ 4 $\mathrm{Z}\mathrm{n}\mathrm{O}$ Which metal oxides are amphoteric?

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• Question 21Oct/Nov 2024, paper 12Multiple choice1 markHas a diagram

  The diagram shows one period of the Periodic Table. $$\overline{)\begin{array}{cccccccc}\text{Li}& \text{Be}& \text{B}& \text{C}& \text{N}& \text{O}& \text{F}& \text{Ne}\end{array}}$$ Which two elements form acidic oxides?

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• Question 19Oct/Nov 2023, paper 13Multiple choice1 mark

  Which oxides are basic?

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• Question 23May/June 2026, paper 23Multiple choice1 mark

  Four oxides are listed. • calcium oxide • copper(II) oxide • sulfur dioxide • zinc oxide Which statement about these oxides is correct?

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• Question 21Oct/Nov 2025, paper 22Multiple choice1 markHas a diagram

  Phosphorus is an element in Group V of the Periodic Table. It burns in air to form an oxide that dissolves in water to form a solution with a pH of 1. Which row describes this oxide of phosphorus?

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• Question 19Oct/Nov 2024, paper 13Multiple choice1 markHas a diagram

  Which row identifies a basic oxide and describes an alkali?

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• Question 6May/June 2026, paper 41Structured16 marks

  This question is about metallic compounds. Zinc oxide, $\text{ZnO}$, reacts with both acids and alkalis to produce salts. State the term given to oxides that react with both acids and alkalis.

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• Question 25Oct/Nov 2025, paper 23Multiple choice1 mark

  Which metal oxide reacts with aqueous sodium hydroxide to form a salt and water?

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• Question 18Oct/Nov 2024, paper 21Multiple choice1 markHas a diagram

  Information about the solubility in water of four oxides is shown. Which oxide, when added to water, gives a solution with a pH less than pH 7?

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• Question 6May/June 2026, paper 43Structured14 marks

  This question is about oxides. Aluminium oxide, $\mathrm{A}{\mathrm{l}}_2{\mathrm{O}}_3$, is an amphoteric oxide. State the meaning of the term amphoteric.

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• Question 20May/June 2025, paper 12Multiple choice1 mark

  Which parts of the Periodic Table contain elements that only form basic oxides?

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• Question 21Oct/Nov 2024, paper 22Multiple choice1 markHas a diagram

  Which row describes zinc oxide and calcium oxide?

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• Question 22Oct/Nov 2023, paper 23Multiple choice1 markHas a diagram

  Zinc oxide is an amphoteric oxide. Zinc oxide is added to excess dilute hydrochloric acid. Zinc oxide is added to excess aqueous sodium hydroxide.

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• Question 19May/June 2025, paper 13Multiple choice1 mark

  Which compound is an acidic oxide?

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• Question 18Oct/Nov 2024, paper 23Multiple choice1 markHas a diagram

  The flow chart shows some properties of a metal oxide. What is the metal oxide?

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• Question 3Oct/Nov 2023, paper 33Structured12 marks

  Table 3.1 shows the average concentrations, in $\text{ng}\mathrm{/}1000{\text{cm}}^3$, of air pollutants in four different years. Table 3.1 Name the pollutant which has the highest concentration in 2019.

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• Question 20May/June 2025, paper 22Multiple choice1 mark

  Which three oxides are all acidic?

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• Question 3Oct/Nov 2024, paper 43Structured16 marksHas a diagram

  This question is about compounds of tin. Tin(IV) oxide has the formula ${\mathrm{S}\mathrm{n}\mathrm{O}}_2$. The relative formula mass, $M_r$, of ${\mathrm{S}\mathrm{n}\mathrm{O}}_2$ is 151.

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• Question 1Oct/Nov 2023, paper 43Structured6 marks

  A list of substances is shown.

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• Question 20May/June 2025, paper 23Multiple choice1 markHas a diagram

  Which row identifies an acidic oxide, a basic oxide and an amphoteric oxide?

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• Question 19May/June 2024, paper 11Multiple choice1 mark

  Which statement about sodium oxide or nitrogen dioxide is correct?

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• Question 16May/June 2023, paper 11Multiple choice1 markHas a diagram

  Which row identifies an acidic oxide and a basic oxide?

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• Question 21May/June 2024, paper 12Multiple choice1 mark

  Which statement about sulfur dioxide or calcium oxide is correct?

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• Question 16May/June 2023, paper 12Multiple choice1 markHas a diagram

  Rubidium is in Group I and strontium is in Group II of the Periodic Table. Which row describes the nature of rubidium oxide, ${\mathrm{R}\mathrm{b}}_2\mathrm{O}$, and strontium oxide, $\mathrm{S}\mathrm{r}\mathrm{O}$?

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• Question 1May/June 2025, paper 41Structured10 marks

  A list of substances is shown. bauxite calcium oxide ethanol graphite methane nitrogen oxygen propane propene sulfur dioxide Answer the questions using the list of substances. Each substance may be used once, more than once, or not at all.

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