Complete the following reaction sequence
` CH_3 - overset(O ) overset(|| )C-CH_3 underset((ii ) H_2 O) overset((i) CH_3 Mg Br) to (A) underset("Ether ") overset("Na metal ") to (B ) overset(CH_3 -Br) to ( C)`

Explanation

To complete the reaction sequence provided in the question, we will follow the steps outlined in the video transcript. Here’s a step-by-step breakdown of the reactions:

### Step 1: Reaction with Grignard Reagent
1. **Starting Compound**: The starting compound is acetone, which is represented as \( CH_3COCH_3 \).
2. **Grignard Reagent**: The Grignard reagent used is \( CH_3MgBr \).
3. **Nucleophilic Attack**: The nucleophile (from the Grignard reagent) attacks the electrophilic carbon of the carbonyl group (C=O) in acetone. This leads to the formation of a tetrahedral intermediate.
4. **Formation of Alcohol**: Upon hydrolysis (reaction with water), this intermediate will convert into an alcohol. The product formed is \( CH_3C(OH)(CH_3) \), which is 2-propanol (or isopropanol). This compound is labeled as (A).

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