Answer: acetic acid.
- A citric acid
- B oxalic acid
- C lactic acid
- D acetic acid
Correct answer: D. acetic acid
Explanation: Vinegar is a dilute aqueous solution of acetic (ethanoic) acid.
Curved arrows show the nucleophile attacking the carbonyl carbon while the C=O pi electrons move onto oxygen, giving a tetrahedral alkoxide intermediate.
Concept context
Aldehydes, ketones, carboxylic acids, and their derivatives (esters, amides, acid chlorides). Key reactions include nucleophilic addition, Aldol condensation, Cannizzaro, and Claisen. Very heavily tested in JEE and NEET.
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