plumiNaming and properties of carboxylic acids: Edexcel International A Level Chemistry questions
Edexcel International A Level Chemistry past-paper questions on 15.C.1 Naming and properties of carboxylic acids, 2019–2025, with mark schemes and examiner’s reports where available.
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Q15(b)
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All 15 questions on Naming and properties of carboxylic acids, as a list
- June 2025, Unit 4, Q15(b) (3 marks): Butanoic acid is very soluble in water. This is due to strong intermolecular forces between butanoic acid molecules and water molecules. Complete the diagram by
- June 2025, Unit 5, Q20(b) (1 mark): State the IUPAC name for salicylic acid. (1)
- October 2024, Unit 4, Q2 (1 mark): Which compound will have the highest boiling temperature? A CH3CH2CH2CH2CH3 B CH3CH2CH2CHO C CH3COCH2CH3 D CH3CH2COOH Use this space for any rough working. Anyt
- October 2024, Unit 4, Q16(c) (1 mark): An isomer of X is a carboxylic acid with five peaks in its 13C NMR spectrum. Draw a possible skeletal structure for this carboxylic acid. (1)
- June 2024, Unit 4, Q17(a)(i) (2 marks): Name the two structural isomers shown. (2) O O Isomer OH OH Name
- June 2024, Unit 4, Q17(a)(ii) (2 marks): The third structural isomer has two stereoisomers. Draw these stereoisomers. (2) Stereoisomer 1 Stereoisomer 2
- June 2024, Unit 4, Q17(a)(iii) (1 mark): Draw the fourth structural isomer. (1)
- January 2024, Unit 6, Q2(d) (1 mark): A sample of Z produced bubbles when sodium carbonate solution was added. Draw the displayed formula of Z, showing all the bonds. (1)
- October 2023, Unit 5, Q21(a) (1 mark): Give the IUPAC name for salicylic acid. (1)
- June 2023, Unit 4, Q10 (1 mark): How do the boiling temperature and the solubility in water of butanoic acid compare with the values for hexane? Boiling temperature Solubility in water A lower
- June 2023, Unit 6, Q2(c)(ii) (1 mark): Draw the structural formula of Y. (1)
- October 2022, Unit 4, Q15(a) (1 mark): Give the IUPAC name of lactic acid. (1)
- January 2022, Unit 4, Q20(a)(iii) (3 marks): The solubility of hexanoic acid in water is 1.08 g per 100 g of water. The isomer of hexanoic acid, butyl ethanoate, CH3CO2C4H9, has a solubility of 0.68 g per
- October 2020, Unit 4, Q17(a) (4 marks): Isomers A, B, C and D are structural isomers that all react with aqueous sodium carbonate to produce carbon dioxide. Isomer A is a straight-chain compound. Isom
- October 2020, Unit 6, Q2(b)(i) (2 marks): When sodium hydrogencarbonate solution is added to separate samples of Q and R, effervescence occurs and a gas is evolved which turns limewater milky. Deduce th
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