plumiHomologous series, functional groups and naming: Edexcel International A Level Chemistry questions
Edexcel International A Level Chemistry past-paper questions on 4.A.2 Homologous series, functional groups and naming, 2019–2025, with mark schemes and examiner’s reports where available.
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All 25 questions on Homologous series, functional groups and naming, as a list
- January 2025, AS Unit 1, Q15 (1 mark): What is the IUPAC name for the hydrocarbon shown? A 2‑ethyl‑3‑methylnonane B 3,4‑dimethyldecane C 8‑ethyl‑7‑methylnonane D 7,8‑dimethyldecane
- January 2025, AS Unit 1, Q18 (1 mark): Which of these formulae are correct for the compound 1,4‑diethylcyclohexene? C10H18 C5H9 (i) (ii) (iii) skeletal formula molecular formula empirical formula A n
- January 2025, AS Unit 1, Q21(a)(ii) (2 marks): Explain why chloroethene and 1‑chloropropene are members of a homologous series. (2)
- October 2024, AS Unit 1, Q18(a) (3 marks): Give the molecular formula, empirical formula and IUPAC name for isooctane. (3) Molecular formula Empirical formula . IUPAC name .
- June 2024, AS Unit 2, Q20(a)(i) (1 mark): Give the IUPAC name for isoprene. (1)
- June 2024, AS Unit 2, Q20(b)(iv) (1 mark): Give the IUPAC name of the product formed by complete hydrogenation of myrcene. (1)
- January 2024, AS Unit 1, Q18(a) (4 marks): Deduce a possible structure and name for each compound. (4) Possible structure of A Possible structure of B Name Name Possible structure of C Possible structure
- January 2024, AS Unit 3, Q1(a) (3 marks): Give the name of each of the three circled functional groups. (3) Functional group 1 Functional group 2 Functional group 3
- January 2023, AS Unit 1, Q16 (1 mark): Which is the skeletal structure for 3,4‑dichloro‑2,2‑dimethylpentane? Cl A Cl Cl Cl B C Cl Cl Cl Cl D
- January 2023, AS Unit 1, Q17 (1 mark): What is the name of a series such as the one shown? OH OH OH A addition B heterolytic C homologous D homolytic
- January 2023, AS Unit 1, Q21(a)(i) (2 marks): Give the molecular formula and IUPAC name for X. (2)
- January 2023, AS Unit 2, Q22(b)(iii) (1 mark): Draw the displayed formula of N-methyldiethanolamine, CH3N(CH2CH2OH)2 . (1)
- October 2022, AS Unit 1, Q15(a)(i) (1 mark): Give the IUPAC name for iso‑octane. (1)
- June 2022, AS Unit 1, Q22(a) (1 mark): On the structure of zingiberene, draw a circle around the ‘2‑methyl’ group referred to in the IUPAC name. (1) zingiberene
- June 2022, AS Unit 1, Q22(b) (2 marks): Deduce the molecular formula of zingiberene. (2)
- June 2022, Unit 4, Q17(b)(i) (1 mark): Give the IUPAC name for CH3CH2CH(OH)CN. (1)
- January 2022, Unit 4, Q7 (1 mark): The anti‑inflammatory drug ketoprofen has the structure shown. OH O What is the molecular formula of ketoprofen? A C15H12O3 B C16H13O3 C C16H14O3 D C16H17O3
- January 2022, Unit 6, Q2(a) (1 mark): State the molecular formula of X. (1)
- June 2021, AS Unit 1, Q14 (1 mark): What is the systematic name of this compound? A 1,1,2-trimethylpent-4-ene B 2,3-dimethylhex-5-ene C 4,5-dimethylhex-1-ene D 4,5,5-trimethylpent-1-ene
- January 2021, AS Unit 1, Q14 (1 mark): What is the IUPAC name of this alkane? A 2-ethyl-4,5-dimethylheptane B 6-ethyl-3,4-dimethylheptane C 3,4,6-trimethyloctane D 3,5,6-trimethyloctane
- October 2020, AS Unit 1, Q8(a) (1 mark): What is the molecular formula for the fifth molecule in this sequence? (1) A CH4O B C6H11O C C6H14O D C7H16O
- October 2020, AS Unit 1, Q8(b) (1 mark): What is the name of this type of sequence? (1) A functional group B homologous series C homolytic series D skeletal formulae
- October 2020, AS Unit 2, Q13(b)(i) (2 marks): Explain why the increases in the values of ΔcH are similar. (2)
- October 2020, Unit 5, Q13 (1 mark): Cuminone is used as a flavouring. O cuminone What is the molecular formula of cuminone? A C10H13O B C10H15O C C11H14O D C11H16O Use this space for any rough wor
- January 2019, AS Unit 1, Q12 (1 mark): Members of the homologous series of alkanes have the same A boiling temperature B density C empirical formula D general formula
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