Which of the following alkane is synthesised from single alkyl halide by wurtz reaction:-

Options

A.
B.
C.
D.

Answer

To solve the question regarding which alkane is synthesized from a single alkyl halide by the Wurtz reaction, we can follow these steps:

### Step 1: Understand the Wurtz Reaction
The Wurtz reaction involves the coupling of alkyl halides in the presence of sodium metal and dry ether. The general reaction can be represented as:
\[ 2 R-X + 2 Na \rightarrow R-R + 2 NaX \]
where \( R \) is the alkyl group and \( X \) is the halogen.

### Step 2: Identify the Requirements for the Wurtz Reaction
For the Wurtz reaction to yield a specific alkane from a single alkyl halide, the alkyl halide must be symmetrical. This means that when two moles of the same alkyl halide react, they should produce a symmetrical alkane.

### Step 3: Analyze the Given Options
We need to evaluate the options provided to determine if they can be synthesized from a single alkyl halide. The key point is that the product must be symmetrical.

1. **Option 1**: Check if the alkane is symmetrical.
2. **Option 2**: Check if the alkane is symmetrical.
3. **Option 3**: Check if the alkane is symmetrical.
4. **Option 4**: Check if the alkane is symmetrical.

### Step 4: Determine the Correct Option
After analyzing the options:
- If we find that only **Option 4** yields a symmetrical alkane when reacted with a single alkyl halide, then this is the correct answer.

### Conclusion
The alkane that can be synthesized from a single alkyl halide by the Wurtz reaction is **Option 4**.

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