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Which equation represents esterification? (A) CH₃—C(=O)—C + H₂O → CH₃—OH + CH₃—C(=O)—OH (B) CH₃—C—H + NaOH → CH₃—C(=O)—Na + CH₃—OH (C) CH₃—OH + CH₃—OH → H⁺ CH₃—CH₂—C(=O)—H + H₂O (D) CH₃—OH + CH₃—C(=O) + H⁺ → CH₃—C(=O)—O—CH₃ + H₂O - HSC - SSCE Chemistry - Question 10 - 2002 - Paper 1
Question 10
Which equation represents esterification? (A) CH₃—C(=O)—C + H₂O → CH₃—OH + CH₃—C(=O)—OH (B) CH₃—C—H + NaOH → CH₃—C(=O)—Na + CH₃—OH (C) CH₃—OH + CH₃—OH → H⁺ ... show full transcript
Worked Solution & Example Answer:Which equation represents esterification? (A) CH₃—C(=O)—C + H₂O → CH₃—OH + CH₃—C(=O)—OH (B) CH₃—C—H + NaOH → CH₃—C(=O)—Na + CH₃—OH (C) CH₃—OH + CH₃—OH → H⁺ CH₃—CH₂—C(=O)—H + H₂O (D) CH₃—OH + CH₃—C(=O) + H⁺ → CH₃—C(=O)—O—CH₃ + H₂O - HSC - SSCE Chemistry - Question 10 - 2002 - Paper 1
Step 1
Which equation represents esterification?
Answer
The correct equation representing esterification is (D). In this reaction, an alcohol (CH₃—OH) reacts with a carboxylic acid (CH₃—C(=O)—OH) in the presence of an acid catalyst (H⁺) to form an ester (CH₃—C(=O)—O—CH₃) and water (H₂O). Esterification is characterized by the formation of an ester molecule from an alcohol and an acid, releasing water in the process.