How can the following conversions be brought about :
Methyl chloride to acetone.

Explanation

To convert methyl chloride (CH₃Cl) to acetone (CH₃COCH₃), we can follow a series of chemical reactions. Here’s a step-by-step breakdown of the process:

### Step 1: Formation of Grignard Reagent
1. **React methyl chloride with magnesium in dry ether**:
\[ \text{CH}_3\text{Cl} + \text{Mg} \xrightarrow{\text{dry ether}} \text{CH}_3\text{MgCl} \]
- **Explanation**: Methyl chloride reacts with magnesium to form a Grignard reagent, methylmagnesium chloride (CH₃MgCl). This reagent acts as a nucleophile.
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