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Arenes: CAIE A‑Level Chemistry questions

Every CAIE A-Level Chemistry exam question on 30.1 Arenes, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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Calculations

312 questions

  1. Q6(f)(i)

    June 2024 · Paper 4

    1 mark30.1 Arenes
    The whole paper ↗
    June 2024 Paper 4, question 6(f)(i): Construct an equation for the formation of the electrophile, BrCH2CH2CH2CH2 +. [1]

  2. Q6(f)(ii)

    June 2024 · Paper 4

    3 marks30.1 Arenes
    The whole paper ↗
    June 2024 Paper 4, question 6(f)(ii): Complete the mechanism in Fig. 6.3 for the reaction of phenylethanone with BrCH2CH2CH2CH2 + ions. Include all relevant curly arrows and charges. Draw the struct

  3. Q6(f)(iii)

    June 2024 · Paper 4

    2 marks30.1 Arenes
    The whole paper ↗
    June 2024 Paper 4, question 6(f)(iii): The reaction shown in Fig. 6.2 forms small amounts of two by-products, Y (C20H22O2) and Z (C12H14O). Suggest structures for Y and Z in the boxes in Fig. 6.4. Y

  4. Q9(b)

    June 2024 · Paper 4

    3 marks32.2 Phenol30.1 Arenes
    The whole paper ↗
    June 2024 Paper 4, question 9(b): Salicylic acid can be synthesised from phenol. salicylic acid COOH OH Fig. 9.2 One of the steps in this synthesis is the electrophilic substitution reaction of

  5. Q4(a)(i)

    Specimen · Paper 4

    1 mark30.1 Arenes
    The whole paper ↗
    Specimen Paper 4, question 4(a)(i): This reaction also forms an isomer of 4-nitromethylbenzene as a by-product. Draw the structure of this by-product. [1]

  6. Q4(a)(ii)

    Specimen · Paper 4

    1 mark30.1 Arenes
    The whole paper ↗
    Specimen Paper 4, question 4(a)(ii): Write an equation for the reaction between HNO3 and H2SO4 that forms the electrophile for this reaction. [1]

  7. Q8(d)(i)

    Specimen · Paper 4

    1 mark30.1 Arenes
    The whole paper ↗
    Specimen Paper 4, question 8(d)(i): Write an equation to show how Al Cl 3 generates the electrophile for the conversion of X into Y. [1]

  8. Q8(d)(ii)

    Specimen · Paper 4

    3 marks30.1 Arenes
    The whole paper ↗
    Specimen Paper 4, question 8(d)(ii): Draw the mechanism for the conversion of X into Y. Include all necessary curly arrows and charges. [3]

  9. Q8(d)(iii)

    Specimen · Paper 4

    1 mark30.1 Arenes
    The whole paper ↗
    Specimen Paper 4, question 8(d)(iii): Write an equation to show how the Al Cl 3 is regenerated. [1] [Total: 12]
All 9 questions on Arenes, as a list
  1. June 2024, Paper 4, Q6(f)(i) (1 mark): Construct an equation for the formation of the electrophile, BrCH2CH2CH2CH2 +. [1]
  2. June 2024, Paper 4, Q6(f)(ii) (3 marks): Complete the mechanism in Fig. 6.3 for the reaction of phenylethanone with BrCH2CH2CH2CH2 + ions. Include all relevant curly arrows and charges. Draw the struct
  3. June 2024, Paper 4, Q6(f)(iii) (2 marks): The reaction shown in Fig. 6.2 forms small amounts of two by-products, Y (C20H22O2) and Z (C12H14O). Suggest structures for Y and Z in the boxes in Fig. 6.4. Y
  4. June 2024, Paper 4, Q9(b) (3 marks): Salicylic acid can be synthesised from phenol. salicylic acid COOH OH Fig. 9.2 One of the steps in this synthesis is the electrophilic substitution reaction of
  5. Specimen, Paper 4, Q4(a)(i) (1 mark): This reaction also forms an isomer of 4-nitromethylbenzene as a by-product. Draw the structure of this by-product. [1]
  6. Specimen, Paper 4, Q4(a)(ii) (1 mark): Write an equation for the reaction between HNO3 and H2SO4 that forms the electrophile for this reaction. [1]
  7. Specimen, Paper 4, Q8(d)(i) (1 mark): Write an equation to show how Al Cl 3 generates the electrophile for the conversion of X into Y. [1]
  8. Specimen, Paper 4, Q8(d)(ii) (3 marks): Draw the mechanism for the conversion of X into Y. Include all necessary curly arrows and charges. [3]
  9. Specimen, Paper 4, Q8(d)(iii) (1 mark): Write an equation to show how the Al Cl 3 is regenerated. [1] [Total: 12]

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