plumiIonic equations from test-tube reactions: Edexcel International A Level Chemistry questions
Edexcel International A Level Chemistry past-paper questions on 1.2.6 Ionic equations from test-tube reactions, 2019–2025, with mark schemes and examiner’s reports where available.
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Q3(c)(iii)
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Open the full PDFYour answerQ3(b)(v)
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All 29 questions on Ionic equations from test-tube reactions, as a list
- January 2025, AS Unit 3, Q3(c)(iii) (1 mark): The formation of a white precipitate was observed during the titration. Suggest the identity of the white precipitate, by name or formula. (1)
- January 2025, Unit 4, Q20(c)(ii) (1 mark): Give one observation that would be seen during this reaction. (1)
- June 2024, AS Unit 1, Q12 (1 mark): Which pair of compounds will not react to form a precipitate? A AgNO3(aq) and CaCl2(aq) B Ca(OH)2(aq) and CO2(g) C Ba(OH)2(aq) and HCl(aq) D KI(aq) and Pb(NO3)2
- June 2024, AS Unit 1, Q13 (1 mark): What is observed when iron(II) carbonate reacts with ethanoic acid? A colourless solution B colourless solution and effervescence C green solution and effervesc
- June 2024, AS Unit 1, Q15(b)(i) (2 marks): State two observations that are made when copper metal is added to silver nitrate solution. (2)
- June 2024, AS Unit 1, Q15(b)(ii) (2 marks): Write an equation for this displacement reaction. Include state symbols. (2)
- June 2024, AS Unit 1, Q18(a)(ii) (1 mark): Suggest why neutralisation does not occur in an unopened container of baking powder. (1)
- June 2024, AS Unit 3, Q1(b)(i) (1 mark): State the observation if a small volume of sodium hydrogencarbonate solution was added to show that the acid was in excess. (1)
- June 2024, AS Unit 3, Q1(b)(ii) (2 marks): Describe a different test, and the positive observation, that could be carried out to show that the acid was in excess. (2)
- June 2024 (R), AS Unit 3, Q2(b)(i) (1 mark): Write an ionic equation for the reaction of magnesium chloride solution with aqueous sodium hydroxide. Include state symbols in your answer. (1)
- January 2024, AS Unit 1, Q20(d)(ii) (2 marks): Give two observations you would make when the reaction is taking place. (2)
- June 2023, AS Unit 2, Q22(b)(i) (1 mark): Write the ionic equation for this reaction. State symbols are not required. (1)
- June 2023, AS Unit 3, Q1(b)(iii) (1 mark): Write the ionic equation for the reaction taking place in (b)(ii). Include state symbols. (1)
- January 2023, AS Unit 1, Q5 (1 mark): Which is the equation for the reaction of magnesium chloride solution with sodium hydroxide solution? A Mg+(aq) + OH–(aq) → MgOH(s) B Mg2+(aq) + 2OH–(aq) → Mg(O
- October 2022, AS Unit 1, Q1 (1 mark): Which mixture results in a displacement reaction? A iron and copper(II) sulfate solution B lead(II) nitrate solution and sodium iodide solution C dilute hydroch
- October 2022, AS Unit 1, Q2 (1 mark): Which mixture results in a precipitation reaction? A dilute sulfuric acid and potassium hydroxide solution B iron and calcium chloride solution C chlorine water
- October 2022, AS Unit 3, Q3(b)(v) (1 mark): Deduce the ionic equation for the formation of XI2 , using your answer to (b)(iv). Include state symbols in your answer. (1)
- June 2022, AS Unit 2, Q6 (1 mark): Which is the ionic equation for the reaction of solid barium carbonate with dilute hydrochloric acid? A BaCO3(s) + 2H+(aq) → Ba2+(aq) + CO2(g) + H2O(l) B Ba2CO3
- January 2022, AS Unit 1, Q7 (1 mark): What is the ionic equation for the reaction between aqueous solutions of barium nitrate and sodium sulfate? A Na+(aq) + NO3 −(aq) ® NaNO3(s) B 2Ba+(aq) + SO4 2−
- January 2022, AS Unit 2, Q16 (1 mark): Barium hydroxide reacts with sulfuric acid as shown. Ba(OH)2(aq) + H2SO4(aq) → BaSO4(s) + 2H2O(l) Which is the ionic equation for this reaction? A Ba2+(aq) + 2O
- January 2022, AS Unit 3, Q3(a)(i) (1 mark): Give the ionic equation for the reaction that occurs when sodium sulfate solution is added to the conical flask in Step 2. Include state symbols. (1)
- October 2021, AS Unit 1, Q4(c) (1 mark): The sodium hydroxide solution was neutralised with sulfuric acid. Which is the ionic equation for this reaction? (1) A H+(aq) + OH−(aq) → H2O(l) B SO4 2−(aq) +
- June 2021, AS Unit 1, Q24(c) (2 marks): Magnesium reacts with aqueous iron(II) sulfate in a displacement reaction. Write the ionic equation for this reaction. Include state symbols. (2)
- January 2021, AS Unit 2, Q21(a) (2 marks): A test to confirm the presence of an aqueous acid is adding a small amount of solid sodium carbonate to the solution. Describe two observations you would see in
- January 2021, AS Unit 3, Q1(a)(iii) (2 marks): Write an ionic equation for the reaction between solution A and solution C. Include state symbols. (2)
- October 2020, AS Unit 1, Q2(a) (1 mark): Which of these is the best name for this type of reaction? (1) A addition B displacement C neutralisation D substitution
- January 2020, AS Unit 1, Q10(a) (1 mark): What would you see when this reaction is carried out? (1) A blue solution turns colourless B effervescence C no visible change D white precipitate
- January 2020, AS Unit 1, Q10(b) (1 mark): What is the ionic equation for this reaction? (1) –(aq) o BaSO4(s) A Ba+(aq) + SO4 B Na+(aq) + Cl–(aq) o NaCl(aq) 2–(aq) o BaSO4(s) C Ba2+(aq) + SO4 2–(aq) + Na
- January 2019, AS Unit 1, Q24(a) (2 marks): A precipitate of silver chloride is formed when silver nitrate solution reacts with sodium chloride solution. A student wrote an ionic equation for the reaction
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