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MHT CET202523 Apr 2025Evening ShiftChemistryAlcohols Phenols and EthersActual

Identify ' A ' in the following reaction. A + Acetic anhydride H ⁺ Aspirin + Acetic acid

Options

  1. AAcrylic acid
  2. BOxalic acid
  3. CSalicylic acid
  4. DPhthalic acid

Correct answer

C. Salicylic acid

Step-by-step solution

This reaction involves the acetylation of a phenolic hydroxyl group, indicative of aspirin synthesis. Aspirin is acetylsalicylic acid, formed from salicylic acid and acetic anhydride under acidic conditions. A + (CH₃CO)₂O [H+] aspirin + CH₃ COOH Salicylic acid has the structure C₆ H₄ (OH)(COOH) , featuring adjacent hydroxyl and carboxyl groups. With acetic anhydride, it undergoes esterification at the phenolic oxygen: C₆ H₄ (OH)(COOH) + (CH₃CO)₂ O C₆ H₄ (OCOCH₃)(COOH) + CH₃ COOH . Evaluating the options: Acrylic ac

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