Analysis of inorganic compounds: Edexcel A‑Level Chemistry questions
Every Edexcel A-Level Chemistry exam question on 4C Analysis of inorganic compounds, 2016–2025, with its mark scheme and examiner’s report.
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Q4(a)(i)
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Q3(c)
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Q3(d)(i)
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Q3(e)(ii)
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Q4(c)(ii)
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Q4(b)(i)
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Q4(b)(ii)
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Q4(b)(iii)
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Q2(c)(i)
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Q2(c)(i)
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Q2(c)(ii)
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Q3(a)(i)
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Q3(a)(ii)
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Q3(b)(i)
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Q3(b)(ii)
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Q4(c)
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Q8(b)(iii)
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Q9(b)
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Q5(a)(i)
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All 44 questions on Analysis of inorganic compounds, as a list
- June 2025, Paper 3, Q3 (6 marks): *3 A student carries out a series of qualitative tests to identify the contents of three unlabelled bottles. The bottles are known to contain the following solu
- June 2025, AS Paper 1, Q4(a)(i) (2 marks): Give the name of the gas and the test for the gas, with the positive result. (2)
- June 2024, Paper 1, Q3(c) (2 marks): Describe a chemical test for the sulfate ion giving the positive result. (2)
- June 2024, Paper 2, Q3(d)(i) (1 mark): Describe the test and the positive result that confirms the gas produced is oxygen. (1)
- June 2024, Paper 3, Q3(e)(ii) (2 marks): Give one advantage and one disadvantage of using a flame test to identify a metal cation, rather than the method followed by the students in Steps 1–5. (2)
- June 2024, Paper 3, Q4(c)(ii) (1 mark): Describe a test to confirm that ammonia, NH3, has been produced. (1)
- June 2024, AS Paper 1, Q4(b)(i) (1 mark): State the observation when silver nitrate is added to a solution of carbonate ions in the absence of nitric acid. (1)
- June 2024, AS Paper 1, Q4(b)(ii) (1 mark): State the observation when nitric acid is added to a solution of carbonate ions. (1)
- June 2024, AS Paper 1, Q4(b)(iii) (2 marks): Write the ionic equation for the reaction of nitric acid with carbonate ions. Include state symbols. (2)
- June 2023, Paper 3, Q2(c)(i) (1 mark): Describe the test, with the positive result, for oxygen. (1)
- June 2023, AS Paper 1, Q2(c)(i) (1 mark): What are the reagents used for this test? (1) A dilute hydrochloric acid and aqueous silver nitrate B dilute sulfuric acid and aqueous silver nitrate C dilute h
- June 2023, AS Paper 1, Q2(c)(ii) (1 mark): Write an ionic equation, including state symbols, for the formation of the white precipitate in the test for the anion in the double salt. (1)
- June 2022, Paper 3, Q3(a)(i) (3 marks): A flame test is carried out on X. Describe how to carry out a flame test. (3)
- June 2022, Paper 3, Q3(a)(ii) (1 mark): The colour of the flame is yellow. Give the formula of the metal ion present in salt X. (1)
- June 2022, Paper 3, Q3(b)(i) (1 mark): Give the formula of the anion present in X. (1)
- June 2022, Paper 3, Q3(b)(ii) (1 mark): Deduce the formula of X, using your answers to (a)(ii) and (b)(i). (1)
- June 2022, Paper 3, Q4(c) (2 marks): A white solid was thought to be barium carbonate. A student suggested that the presence of the carbonate ion could be tested for by adding a small amount of sul
- June 2022, AS Paper 1, Q8(b)(iii) (2 marks): Hydrochloric acid is added to a test tube containing a sample of solid sodium carbonate. Give two observations. (2)
- June 2022, AS Paper 1, Q9(b) (5 marks): The complete combustion of water gas produces carbon dioxide and water. A student drew a diagram of the apparatus to attempt to identify the combustion products
- November 2021, Paper 3, Q5(a)(i) (2 marks): Complete the table by writing the names or formulae of the species. (2) Test Observation Inference Test 1 The cation in X is Add aqueous sodium hydroxide A gree
- November 2021, Paper 3, Q5(a)(iv) (1 mark): Give a reason why dilute hydrochloric acid is needed in Test 2. (1)
- November 2021, Paper 3, Q5(b)(i) (2 marks): Complete the table by writing the names or formulae of the species. (2) Test Observation Inference Test 3 The cation in Y is Add dilute aqueous ammonia to A pal
- November 2021, Paper 3, Q5(b)(iii) (2 marks): Give a reagent that could be added to the mixture at the end of Test 4 to confirm the identity of the anion in Y. Include the observation when this reagent is a
- October 2020, Paper 3, Q1(a) (2 marks): Give the reagent and the observation to show the presence of carbonate ions. (2)
- October 2020, Paper 3, Q1(b) (2 marks): Give the reagent and the observation to show the presence of sulfate ions. (2)
- October 2020, Paper 3, Q2(a)(i) (1 mark): State the colour of the flame produced by separate samples of potassium and strontium ions. (1) Potassium ions Strontium ions
- October 2020, Paper 3, Q2(a)(ii) (1 mark): Give a reason why carrying out a flame test on a mixture of potassium chloride and strontium chloride does not clearly show that two different metal ions are pr
- October 2020, Paper 3, Q2(b)(i) (2 marks): Give two reasons why the wire is made of nichrome and not iron. (2)
- October 2020, Paper 3, Q2(b)(ii) (1 mark): Give a reason why the wire is dipped into acid and then heated in the first stage. (1)
- October 2020, Paper 3, Q2(b)(iii) (1 mark): State why fresh concentrated hydrochloric acid is used in the second stage of the flame test. (1)
- October 2020, Paper 3, Q2(b)(iv) (1 mark): State why hydrochloric acid is used in the second stage of the flame test. (1)
- October 2020, AS Paper 1, Q6(b) (3 marks): Describe what you would expect to see when an excess of dilute hydrochloric acid is added to a sample of pure solid malachite. (3)
- June 2019, Paper 3, Q4(a)(i) (6 marks): Complete the statements in the inference column by writing the names or formulae of the species. (6) Test Observation Inference Test 1 The gas evolved was Aqueo
- June 2019, Paper 3, Q4(a)(ii) (1 mark): Use the results of the tests in (a)(i) to give a formula of C. Do not include water of crystallisation. (1)
- June 2019, Paper 3, Q4(b) (1 mark): Write the ionic equation for the reaction between the cation in C and sodium hydroxide producing the gas in Test 1. State symbols are not required. (1)
- June 2019, Paper 3, Q4(d) (1 mark): Give a reason why dilute hydrochloric acid is needed in Test 3. (1)
- June 2019, AS Paper 1, Q5(b) (2 marks): Describe a chemical test, and the expected result, to show that sulfate ions are present in a solution of iron(II) sulfate in water. (2)
- June 2018, Paper 1, Q1(a) (2 marks): Deduce the name of salt A. (2)
- June 2018, AS Paper 1, Q4(a)(i) (1 mark): Addition of a few drops of a solution of barium chloride to one of the test tubes gave a white precipitate. Identify, by name or formula, two possible anions th
- June 2018, AS Paper 1, Q4(a)(ii) (1 mark): Addition of 1 cm3 of dilute hydrochloric acid to the test tube in (a)(i) resulted in no further change. Give the formula of the anion. (1)
- June 2018, AS Paper 1, Q4(a)(iii) (1 mark): What is the charge on the cation? (1) A +1 B −1 C +2 D −2
- June 2017, AS Paper 1, Q1(b) (2 marks): A flame test on a white powder gave a lilac flame colour. Dilute hydrochloric acid was added to a second sample of the same powder in a boiling tube and the gas
- June 2016, AS Paper 1, Q4(c) (1 mark): Which solution produces a white precipitate with acidified barium chloride solution? (1) A hydrochloric acid B magnesium sulfate C potassium chloride D sodium c
- June 2016, AS Paper 1, Q4(e) (2 marks): The hydrochloric acid and the sodium carbonate solution react together. State an observation you would make and write the ionic equation for the reaction. State
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