plumiDirecting groups in aromatic substitution: OCR A‑Level Chemistry A questions
OCR A-Level Chemistry A past-paper questions on 6.1.1.4 Directing groups in aromatic substitution, 2016–2025, with mark schemes and examiner’s reports where available.
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Q20(c)(iii)
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Open the full PDFQ21(b)(i)
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Open the full PDFQ20(a)(iii)
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Open the full PDFYour answerQ17(c)(i)
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Open the full PDFQ17(c)(ii)
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All 6 questions on Directing groups in aromatic substitution, as a list
- June 2025, Paper 2, Q20(c)(iii) (2 marks): A student suggested an alternative two-stage synthesis of compound G from benzene. Synthesis 2 CH3 NO2 NO2 Stage 1 Stage 2 Benzene Nitrobenzene Compound G When
- June 2024, Paper 2, Q21(b)(i) (3 marks): Draw all organic products formed from monosubstitution reactions of the substituted benzene compounds shown below. Reaction Monosubstituted Product(s) CN Cl2 Al
- June 2022, Paper 2, Q20(a)(iii) (4 marks): Compound J is substituted at the 2- and 4- positions by chlorine in the presence of a catalyst. Outline the mechanism for the 4 substitution of compound J by ch
- June 2019, Paper 2, Q8 (1 mark): Phenol reacts with bromine. Which is the least likely organic product? OH Br A Br OH Br Br B OH Br C Br OH Br Br D Br Your answer [1]
- June 2017, Paper 2, Q17(c)(i) (3 marks): Complete the flowchart showing the structure of the intermediate and the formulae of the reagents for each stage. NO2 bromination reagents: reduction NH2 reagen
- June 2017, Paper 2, Q17(c)(ii) (3 marks): Another student attempts the same synthesis but carries out reduction before bromination. The student was surprised to find that two structural isomers of 3-bro
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