A-LevelChemistryCarboxylic acids and derivatives9701/12 · May/June 2023 · Q391 Mark

Lactide is an intermediate in the manufacture of a synthetic fibre. [Figure of lactide molecule] Which compound, on heating with an acid catalyst, can produce lactide?

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Ahydroxyethanoic acid

B2-hydroxybutanoic acid

C2-hydroxypropanoic acid

D3-hydroxypropanoic acid

✓ Correct answer

C: 2-hydroxypropanoic acid

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Topic: Carboxylic acids and derivatives, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2023 Paper 1 Variant 2, question 39.

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Lactide is an intermediate in the manufacture of a synthetic fibre. [Figure of lactide molecule] Which compound, on heating with an acid catalyst, can produce lactide?

✓ Correct answer

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