Assertion (A) tert-butyl bromide undergoes Wurtz reaction to give 2,2,3,3-tetramethylbutane.
Reason (R ) 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 explanation 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 assertion and reason question regarding tert-butyl bromide and the Wurtz reaction, we will break down the information step by step.

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

- **Tert-butyl bromide (C4H9Br)** is a tertiary alkyl halide.
- The Wurtz reaction involves the coupling of two alkyl halides in the presence of sodium metal and dry ether, resulting in the formation of a hydrocarbon.

### Step 2: Write the Reaction for Wurtz Reaction
In the Wurtz reaction, two molecules of tert-butyl bromide react as follows:

\[ 2 \, \text{(C4H9Br)} + 2 \, \text{Na} \xrightarrow{\text{dry ether}} \text{C8H18} + 2 \, \text{NaBr} \]

### Step 3: Identify the Product
When two tert-butyl bromide molecules react, the bromine atoms are eliminated, and the remaining carbon chains combine to form a larger hydrocarbon.

- The product formed is 2,2,3,3-tetramethylbutane, which has the structure:

\[ \text{C8H18} \quad \text{(or 2,2,3,3-tetramethylbutane)} \]

### Step 4: Confirm the Reason
The reason provided 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.

- This is indeed true for the Wurtz reaction, as it involves the coupling of two alkyl groups, effectively doubling the number of carbon atoms.

### Step 5: Conclusion
Both the assertion and reason are correct. The assertion correctly describes the product of the Wurtz reaction involving tert-butyl bromide, and the reason accurately explains the mechanism of the Wurtz reaction.

### Final Answer
- **Assertion (A)**: True
- **Reason (R)**: True
- **Conclusion**: Both assertion and reason are correct, and the reason provides a valid explanation for the assertion.

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