Question

Wurtz reaction involves the reduction of alkyl halide with

• A. Zn/HCl
• B. HI
• C. Zn/Cu Couple
• D. Na in ether

Hint:

Wurtz reaction is only suitable for the preparation of symmetrical alkanes with an even number of carbon atoms.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
The Wurtz reaction is a coupling reaction used to form alkanes from alkyl halides.
Step 2: Detailed Explanation:
In the Wurtz reaction, two molecules of an alkyl halide (usually primary) react with sodium metal in the presence of dry ether to form a higher alkane. \(2R-X + 2Na \rightarrow R-R + 2NaX\). Sodium acts as a reducing agent, and the reaction proceeds via a free radical mechanism.
Step 3: Final Answer:
Thus, the correct reagent is sodium in dry ether, option (D).