Question

Which of the following compounds is obtained using Wurtz synthesis?

• A. \(\text{R}_{2}\text{C}=\text{CR}_{2}\)
• B. \(\text{H}_{3}\text{C-CH}_{3}\)
• C. R-COOH
• D. R-OH

Hint:

Wurtz reaction couples two alkyl halides with sodium to give a higher alkane.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept
In Wurtz synthesis an alkyl halide reacts with sodium metal in dry ether.
\(2\text{R-X}+2\text{Na}\xrightarrow{\text{dry ether}}\text{R-R}+2\text{NaX}\)

Step 2: Product Type
The product is a symmetrical alkane with double the number of carbon atoms.

Step 3: Compare the options
Only \(\text{H}_{3}\text{C-CH}_{3}\) is an alkane, so option (B) is correct.
An alkene, acid or alcohol is not formed.

Final Answer:
Wurtz synthesis gives an alkane such as ethane. \[ \boxed{\text{(B) }\text{H}_{3}\text{C-CH}_{3}} \]