Wurtz reaction of methyl iodide yields an organic compound X. Which one of the following reactions also yields X?

Options

A. `C_(2)H_(5)`Cl + Mg `overset("dryether")(rarr)`
B. `C_(2)H_(5)` Cl + `"LiAlH"_(4) (rarr)`
C. `C_(2)H_(5)`Cl + `C_(2) H_(5)"Ona" rarr `
D. `CHCl_(3) underset(Delta)overset("Ag powder")(rarr) `

Answer

To solve the question regarding the Wurtz reaction of methyl iodide and the identification of an alternative reaction that yields the same organic compound, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Wurtz Reaction**:
- The Wurtz reaction involves the coupling of alkyl halides in the presence of sodium metal. For methyl iodide (CH₃I), the reaction can be represented as:
\[ 2 \text{CH}_3\text{I} + 2 \text{Na} \rightarrow \text{C}_2\text{H}_6 + 2 \text{NaI} \]
- This means that two moles of methyl iodide react to form ethane (C₂H₆).

2. **Identify the Product**:
- From the Wurtz reaction, we conclude that the organic compound X produced is ethane (C₂H₆).

3. **Evaluate Alternative Reactions**:
- We need to check which of the given reactions also produces ethane (C₂H₆).

4. **Analyze Each Given Reaction**:
- **Reaction A**: C₂H₅Cl + Mg → C₂H₅MgCl (Grignard reagent)
- This reaction does not produce ethane; it produces a Grignard reagent.
- **Reaction B**: C₂H₅Cl + LiAlH₄ → C₂H₆ + Cl⁻
- In this reaction, lithium aluminium hydride (LiAlH₄) acts as a reducing agent. It replaces the chlorine atom in chloroethane (C₂H₅Cl) with a hydrogen atom, yielding ethane (C₂H₆). This is a valid reaction that produces ethane.
- **Reaction C**: C₂H₅Cl + C₂H₅O⁻ → C₂H₅-O-C₂H₅ + Cl⁻
- This reaction leads to the formation of diethyl ether, not ethane.
- **Reaction D**: 2 CHCl₃ + Ag → C₂H₂ + 6 AgCl
- This reaction produces ethyne (C₂H₂), not ethane.

5. **Conclusion**:
- The only reaction that also yields ethane (C₂H₆) is **Reaction B**: C₂H₅Cl + LiAlH₄ → C₂H₆ + Cl⁻.

### Final Answer:
The reaction that also yields the organic compound X (ethane) is:
**C₂H₅Cl + LiAlH₄ → C₂H₆ + Cl⁻ (Reaction B)**.