Q27 / 150 · MHT CET 2025 (25 Apr Shift 2) · Chemistry

Identify the product formed in the following reaction. $\left(\mathrm{CH}_3 \mathrm{CO}\right)_2 \mathrm{O} \xrightarrow{\mathrm{H}_2 \mathrm{O}} \text { Product }$

  • A
    $\mathrm{CH}_3 \mathrm{COCH}_3$
  • B
    $\mathrm{CH}_3-\mathrm{CHO}$
  • C
    $\mathrm{CH}_3-\mathrm{OH}$
  • Correct answer
    D
    $\mathrm{CH}_3 \mathrm{COOH}$

Solution

Acetic anhydride undergoes hydrolysis with water to form acetic acid:

$\mathrm{(CH_3CO)2O + H_2 O \rightarrow 2CH_3 COOH}$

Among the options, D represents acetic acid $\mathrm{CH_3 COOH}$, while A is acetone, B is acetaldehyde, and C is methanol.

This hydrolysis is characteristic of acid anhydrides reacting with nucleophiles.

Final answer: $\boxed{\text{D}}$

Hence, the correct answer is option: 'D'.

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