Assertion: tert-butyl bromide undergoes Wurtz reaction to give 2,2,3,3-tetramethylbutane.
Reason: In wurtz reaction, alkyl halides react with sodium in dry ether to give hydrocarbon containing double the number of carbon atoms present in the halide.

Options

A. Assertion and reason both are correct and reason is correct explanaion of assertion.
B. Assertion and reason both are wrong statements.
C. Assertion is correct but reason is wrong statement.
D. Assertion is wrong but reason is correct statement.

Explanation

To solve the question, we need to analyze the assertion and the reason provided.

### Step 1: Analyze the Assertion
The assertion states that tert-butyl bromide undergoes Wurtz reaction to give 2,2,3,3-tetramethylbutane.

- **Structure of tert-butyl bromide (C4H9Br)**:
- The structure can be represented as:
```
CH3
|
CH3-C-CH3
|
Br
```
- **Wurtz Reaction**:
- In the Wurtz reaction, alkyl halides react with sodium in dry ether to form alkanes. The general reaction is:
\[ 2 R-X + 2 Na \rightarrow R-R + 2 NaX \]
- Here, R is the alkyl group and X is the halogen.

- **Expected Product**:
- When tert-butyl bromide reacts with sodium, it can couple with itself:
\[ 2 \text{(tert-butyl bromide)} \rightarrow \text{2,2,3,3-tetramethylbutane} \]
- Thus, the assertion is correct.

### Step 2: Analyze the Reason
The reason states that in the Wurtz reaction, alkyl halides react with sodium in dry ether to give hydrocarbons containing double the number of carbon atoms present in the halide.

- **Understanding the Reason**:
- The Wurtz reaction indeed produces alkanes that have double the number of carbon atoms compared to the starting alkyl halides.
- For example, if we start with one molecule of tert-butyl bromide (4 carbons), the product will be a hydrocarbon with 8 carbons (2,2,3,3-tetramethylbutane).

### Conclusion
Both the assertion and reason are correct, and the reason correctly explains the assertion.

### Final Answer:
Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.

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