plumiIdentifying anions and transition metal ions: OCR A‑Level Chemistry A questions
OCR A-Level Chemistry A past-paper questions on 5.3.2.1 Identifying anions and transition metal ions, 2016–2025, with mark schemes and examiner’s reports where available.
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Q4(a)(ii)
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Open the full PDFYour answerQ4(c)(ii)
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Open the full PDFQ4(c)(iii)
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Open the full PDFYour answerQ22(a)
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All 8 questions on Identifying anions and transition metal ions, as a list
- June 2025, Paper 3, Q4(a)(ii) (7 marks): Complete the flowchart by adding formulae in the boxes. white precipitate white precipitate Ag+(aq) Ba2+(aq) acidic solution containing three ions Cl2(aq)/H2O(I
- June 2024, Paper 1, Q13 (1 mark): A student analyses a solution of a salt. The results are shown below. Test Observation Reaction with NaOH(aq) Green precipitate Reaction with Ba(NO3)2(aq) White
- June 2023, Paper 1, Q11 (1 mark): A student adds aqueous potassium carbonate to one test tube and aqueous silver nitrate to a second test tube. The student adds dilute hydrochloric acid to each
- June 2023, Paper 3, Q4(c)(ii) (3 marks): The student adds NaOH(aq) to the aqueous solution of Tutton’s salt and warms the mixture. A precipitate and a gas are formed. Write the formulae of the precipit
- June 2023, Paper 3, Q4(c)(iii) (2 marks): How could the student carry out a test-tube test to confirm the anion in the Tutton’s salt? [2]
- June 2022, Paper 1, Q1 (1 mark): An aqueous solution contains a mixture of chloride, bromide and iodide ions. AgNO3(aq) is added to this mixture, followed by an excess of dilute NH3(aq). The re
- November 2021, Paper 1, Q15 (1 mark): NH4Fe(SO4)2•12H2O is a hydrated ‘double salt’. A student analyses this double salt using test tube tests. Which row(s) gives/give correct result(s) for the stat
- November 2020, Paper 1, Q22(a) (6 marks): (a)* B and C are compounds of two different transition elements. A student carries out test tube reactions on aqueous solutions of B and C. The observations of
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