plumiHow are metals with different reactivities extracted?: OCR GCSE Combined Science B questions
Every OCR GCSE Combined Science B exam question on C3.2 How are metals with different reactivities extracted?, 2018–2025, with its mark scheme and examiner’s report.
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Q9(a)
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Q9(b)
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Q2(a)
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Q2(b)
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The whole paper ↗Q8(b)(i)
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Q8(b)(ii)
The whole paper ↗Q8(c)(i)
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The whole paper ↗Q8(c)(iii)
The whole paper ↗Q4(b)
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Q4(c)(i)
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The whole paper ↗Q9(b)
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Q3(b)(ii)
The whole paper ↗Q8(a)
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Q8(b)(i)
The whole paper ↗Q8(b)(ii)
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All 39 questions on How are metals with different reactivities extracted?, as a list
- June 2025, Chemistry Paper 2 Foundation, Q9(a) (4 marks): A company wants to extract 5.5 kg of zinc from an ore which contains 8.5% zinc. Calculate the mass of ore needed. Use the equation: percentage of zinc in ore =
- June 2025, Chemistry Paper 2 Foundation, Q9(b) (2 marks): The zinc compounds are heated strongly to produce zinc oxide. The zinc oxide is then heated with carbon to produce zinc and carbon monoxide. ZnO + C Zn + CO Exp
- June 2025, Chemistry Paper 2 Foundation, Q9(c) (2 marks): Many metals cannot be extracted using carbon. Explain why zinc can be extracted using carbon but aluminium cannot. Zinc Aluminium [2]
- June 2025, Combined Science Paper 4 Foundation, Q1(b)(ii) (1 mark): The list shows the order of reactivity of some elements from most reactive to least reactive. Most – Rubidium Potassium Magnesium Aluminium Carbon Zinc Iron Lea
- June 2025, Chemistry Paper 6 Higher, Q2(a) (4 marks): A company wants to extract 5.5 kg of zinc from an ore which contains 8.5% zinc. Calculate the mass of ore needed. Use the equation: percentage of zinc in ore =
- June 2025, Chemistry Paper 6 Higher, Q2(b) (2 marks): The zinc compounds are heated strongly to produce zinc oxide. The zinc oxide is then heated with carbon to produce zinc and carbon monoxide. ZnO + C Zn + CO Exp
- June 2025, Chemistry Paper 6 Higher, Q2(c) (2 marks): Many metals cannot be extracted using carbon. Explain why zinc can be extracted using carbon but aluminium cannot. Zinc Aluminium [2]
- June 2024, Chemistry Paper 2 Foundation, Q8(b)(i) (1 mark): In one experiment, they add a piece of zinc to a blue aqueous solution of copper ions. They see a reddish metal formed and the blue solution fades to colourless
- June 2024, Chemistry Paper 2 Foundation, Q8(b)(ii) (2 marks): The table shows the student’s results from the other experiments: Cu2+(aq) Fe2+(aq) Mg2+(aq) Ag+(aq) Cu(s) No change No change Change Fe(s) Change No change Cha
- June 2024, Chemistry Paper 2 Foundation, Q8(c)(i) (2 marks): How will the results of their experiment show the order of reactivity of the metals? [2]
- June 2024, Chemistry Paper 2 Foundation, Q8(c)(ii) (1 mark): Suggest why this method of adding metals to acid is not suitable for finding the reactivity of all metals. [1]
- June 2024, Chemistry Paper 2 Foundation, Q8(c)(iii) (1 mark): What is the test for hydrogen gas? Tick (✓) one box. Bleaches damp litmus paper. Pops a lighted splint. Relights a glowing splint. Turns limewater milky. [1]
- June 2024, Chemistry Paper 6 Higher, Q4(b) (2 marks): A student does some experiments to find the reactivities of some metals. In one experiment, they add a piece of magnesium to a blue aqueous solution of copper i
- June 2024, Chemistry Paper 6 Higher, Q4(c)(i) (2 marks): Write a balanced ionic equation for the reaction between solid copper and aqueous silver ions. [2]
- June 2024, Chemistry Paper 6 Higher, Q4(c)(ii) (2 marks): Write down the metals in order of reactivity. Most reactive Least reactive [2]
- June 2023, Chemistry Paper 2 Foundation, Q9(b) (2 marks): Zinc is extracted from its oxide using carbon: 2ZnO + C 2Zn + CO2 Which two statements explain why aluminium must be extracted by electrolysis and not by reacti
- June 2023, Chemistry Paper 6 Higher, Q3(b)(ii) (2 marks): Explain why bubbles form very quickly when zinc is added to the acid but very slowly when lead is added to the acid. Use ideas about electrons in your answer. [
- June 2022, Combined Science Paper 4 Foundation, Q8(a) (1 mark): Suggest one safety precaution the teacher should have taken when demonstrating these reactions. [1]
- June 2022, Combined Science Paper 4 Foundation, Q8(b)(i) (3 marks): Write the letters of the metals in the boxes to show the correct order of reactivity. The first one has been done for you. least reactive most reactive B [3]
- June 2022, Combined Science Paper 4 Foundation, Q8(b)(ii) (2 marks): Sundip predicts that the bubbles given off by these reactions are hydrogen. To test for this she blows out a splint and places it at the top of the test tube us
- June 2022, Combined Science Paper 8 Higher, Q1(a) (1 mark): Suggest one safety precaution the teacher should have taken when demonstrating these reactions. [1]
- June 2022, Combined Science Paper 8 Higher, Q1(b)(i) (3 marks): Write the letters of the metals in the boxes to show the correct order of reactivity. The first one has been done for you. least reactive most reactive B [3]
- June 2022, Combined Science Paper 8 Higher, Q1(b)(ii) (2 marks): Sundip predicts that the bubbles given off by these reactions are hydrogen. To test for this she blows out a splint and places it at the top of the test tube us
- November 2021, Chemistry Paper 2 Foundation, Q7(a)(i) (3 marks): Write the balanced symbol equation for this reaction. magnesium + water magnesium oxide + hydrogen + + [3]
- November 2021, Chemistry Paper 2 Foundation, Q7(a)(ii) (1 mark): How does the equation show that magnesium is oxidised in this reaction? [1]
- November 2021, Chemistry Paper 2 Foundation, Q7(b)(i) (1 mark): What tests can be used to show that an alkali and hydrogen gas are formed? Draw lines to connect each product with its correct test. Product Test Pops a lighted
- November 2021, Chemistry Paper 2 Foundation, Q7(b)(ii) (1 mark): Why does sodium react more quickly with cold water than magnesium? [1]
- November 2021, Chemistry Paper 6 Higher, Q8(c)(i) (2 marks): Write a balanced symbol equation for this reaction. [2]
- November 2021, Chemistry Paper 6 Higher, Q8(c)(ii) (2 marks): Explain why copper can be extracted by this method but aluminium cannot. [2]
- November 2021, Chemistry Paper 6 Higher, Q8(d) (3 marks): Bioleaching and phytoextraction are new biological methods of extracting metals from waste heaps around old mines. Bioleaching uses bacteria on waste heaps. The
- June 2019, Chemistry Paper 2 Foundation, Q5(a)(i) (1 mark): The zinc oxide is reduced by the carbon to make zinc. What does reduced mean in this situation? Tick (3) one box. The mass of zinc oxide increases. The zinc oxi
- June 2019, Chemistry Paper 2 Foundation, Q5(a)(ii) (2 marks): Zinc can be made by heating zinc oxide with carbon. Aluminium cannot be made by heating aluminium oxide with carbon. Which two statements explain why? Tick (3)
- June 2019, Chemistry Paper 6 Higher, Q8(a)(i) (1 mark): Explain what has happened to the zinc oxide in this reaction. [1]
- June 2019, Chemistry Paper 6 Higher, Q8(a)(ii) (2 marks): Why is zinc gas cooled in an inert atmosphere rather than in air? [2]
- June 2019, Chemistry Paper 6 Higher, Q8(a)(iii) (3 marks): What is the maximum mass of zinc that can be extracted from 10 tonnes of zinc oxide? Mass of zinc = tonnes [3]
- June 2019, Chemistry Paper 6 Higher, Q8(b)(i) (1 mark): What method is used to extract aluminium? [1]
- June 2019, Chemistry Paper 6 Higher, Q8(b)(ii) (2 marks): Explain why carbon can be used to extract zinc but not aluminium. [2]
- June 2019, Chemistry Paper 6 Higher, Q8(c) (3 marks): There are piles of waste rock left near to old zinc mines. The rock contains lead impurities. Lead is toxic and may get into streams and rivers. A new method ca
- June 2018, Chemistry Paper 2 Foundation, Q4(a) (1 mark): Jack adds copper metal to dilute sulfuric acid. There is no reaction. Which statement explains why? Tick (✓) one box. Copper is not a metal. Copper is unreactiv
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