Arrange the following in order of their increasing ease of hydrolysis :
`CH_(3) COOC_(2) H_(5), CH_(3) COCl, (CH_(3) CO)_(2) O, CH_(3) CONH_(2)`.

Explanation

To arrange the compounds in order of their increasing ease of hydrolysis, we need to consider the nature of the leaving groups in each compound. The ease of hydrolysis is influenced by how easily the leaving group can depart from the molecule. Here’s the step-by-step solution:

### Step 1: Identify the Compounds and Their Leaving Groups
1. **CH₃COOC₂H₅ (Ethyl acetate)** - The leaving group is C₂H₅O⁻ (ethoxide).
2. **CH₃COCl (Acetyl chloride)** - The leaving group is Cl⁻ (chloride).
3. **(CH₃CO)₂O (Acetic anhydride)** - The leaving group is CH₃COO⁻ (acetate).
4. **CH₃CONH₂ (Acetamide)** - The leaving group is NH₂ (amide).

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