Preparation of Ethyl Benzene:

Ethyl benzene is an organic compound having a chemical formula C8H10. It is an aromatic hydrocarbon and is widely used in the production of styrene, which is an important industrial chemical. Ethyl benzene can be prepared by various methods, but the Wurtz reaction is not one of them.

Explanation:

The Wurtz reaction is a type of organic reaction in which two alkyl halides are reacted with sodium metal in dry ether to form a hydrocarbon with a higher number of carbon atoms. This reaction is not suitable for the preparation of ethyl benzene because it involves the formation of a saturated hydrocarbon, whereas ethyl benzene is an unsaturated hydrocarbon.

Other methods of preparation of ethyl benzene include:

1. Friedel-Crafts reaction: In this reaction, benzene is reacted with ethyl chloride in the presence of a Lewis acid catalyst such as aluminum chloride to form ethyl benzene.

2. Wurtz-Fittig reaction: In this reaction, benzyl chloride is reacted with ethyl iodide in the presence of sodium metal to form ethyl benzene.

3. Clemmensen reduction: In this reaction, benzene is first converted to benzyl chloride, which is then reduced using zinc amalgam and hydrochloric acid to form ethyl benzene.

In conclusion, ethyl benzene cannot be prepared by the Wurtz reaction because it involves the formation of a saturated hydrocarbon, whereas ethyl benzene is an unsaturated hydrocarbon.

Wurtz reation is for aliphatic chains Not for Aromatic rings.