Which `CH_(3)COOH` reacts with `CH_(3)-MgX`, then

Options

A. `CH_(3)COX` is formed
B. Hydrocarbon is formed
C. Acetone is formed
D. Alcohol is formed

Answer

To solve the problem of what happens when acetic acid (CH₃COOH) reacts with a Grignard reagent (CH₃MgX), we can break it down into a series of steps.

### Step-by-Step Solution:

1. **Identify the Reactants**:
- We have acetic acid (CH₃COOH) and a Grignard reagent (CH₃MgX). The Grignard reagent consists of a methyl group (CH₃) bonded to magnesium (Mg) and a halogen (X).

2. **Understand the Nature of Grignard Reagents**:
- Grignard reagents are highly reactive organometallic compounds. The carbon in CH₃MgX has a partial negative charge (due to its higher electronegativity compared to magnesium), while magnesium carries a partial positive charge.

3. **Reaction Mechanism**:
- The carbon atom in the Grignard reagent (CH₃) acts as a nucleophile and attacks the electrophilic carbon in the carbonyl group of acetic acid (C=O).
- This leads to the formation of a tetrahedral intermediate.

4. **Formation of Alkoxide**:
- The tetrahedral intermediate collapses, resulting in the formation of an alkoxide ion (CH₃COO⁻MgX⁺) and the release of a methane molecule (CH₄).
- The reaction can be summarized as:
\[ \text{CH}_3\text{COOH} + \text{CH}_3\text{MgX} \rightarrow \text{CH}_3\text{COO}^-\text{MgX}^+ + \text{CH}_4 \]

5. **Final Product**:
- The product formed is a magnesium salt of acetic acid (CH₃COO⁻MgX⁺) and methane (CH₄). The alkoxide (CH₃COO⁻) can further react with water to form acetic acid again, but in this case, we focus on the immediate products of the reaction.

### Conclusion:
When acetic acid reacts with CH₃MgX, the products are methane (CH₄) and a magnesium salt of acetic acid (CH₃COO⁻MgX⁺).