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A-LevelChemistryCarboxylic acids and derivatives9701/12 · May/June 2025 · Q291 Mark

An ester, R'CO₂R", is hydrolysed in alkaline conditions. R' and R" are different alkyl groups. Which row identifies the two products formed?

A[product 1: R'CO2H, product 2: R"OH]
B[product 1: R'CO2⁻, product 2: R"OH]
C[product 1: R'CO2H, product 2: R"O⁻]
D[product 1: R'CO2⁻, product 2: R"O⁻]

✓ Correct answer

B: [product 1: R'CO2⁻, product 2: R"OH]

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About this question

Topic
Carboxylic acids and derivatives, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, May/June 2025 Paper 1 Variant 2, question 29.

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