O-LevelChemistryOrganic Chemistry5070/11 · Oct/Nov 2019 · Q371 Mark

Propanoic acid reacts with calcium carbonate. The products of this reaction are calcium propanoate, carbon dioxide and water. What is the equation for this reaction?

A2C₂H₅COOH + Ca₂CO₃ → 2C₂H₅COOCa + CO₂ + H₂O

B2C₂H₅COOH + CaCO₃ → (C₂H₅COO)₂Ca + CO₂ + H₂O

C2C₃H₇COOH + Ca₂CO₃ → 2C₃H₇COOCa + CO₂ + H₂O

D2C₃H₇COOH + CaCO₃ → (C₃H₇COO)₂Ca + CO₂ + H₂O

✓ Correct answer

B: 2C₂H₅COOH + CaCO₃ → (C₂H₅COO)₂Ca + CO₂ + H₂O

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2019 Paper 1 Variant 1, question 37.

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