Complete the following reactions and write main products : (iii) `CH_(3)MgBr overset((i)CO_(2)//H^(+))underset((ii)H_(2)O//H^(+))to`.

Explanation

To solve the given reaction step by step, we will analyze the reaction of methylmagnesium bromide (CH₃MgBr) with carbon dioxide (CO₂) followed by hydrolysis.

### Step 1: Reaction of CH₃MgBr with CO₂

1. **Identify the reactants**: We have methylmagnesium bromide (CH₃MgBr) and carbon dioxide (CO₂).

2. **Nucleophilic attack**: The methyl group (CH₃⁻) from CH₃MgBr acts as a nucleophile and attacks the electrophilic carbon atom of carbon dioxide. The carbon dioxide molecule has a linear structure, and the carbon atom is electrophilic due to the presence of two oxygen atoms which are more electronegative.

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