Question

how to convert ETHYLBENZENE to BENZENE?

Answer 1

ethyl benzene + Cl2 chloroethyl benzene
chloroethyl benzene + KOH(aq.) benzene

Answer 2

Conversion of Ethyl benzene to Benzene

1. The given reactant ethyl benzene is treated with acidic $KMnO_4$ at a temperature of 375 - 385K.
2. This reaction yield benzoic acid which is further processed.
3. When the formed benzoic acid is treated with either sodium hydroxide or calcium oxide and heated the carboxylic group present in benzoic acid gets eliminated.
4. The elimination of -COOH group yields benzene.
5. Thus in conversion of ethyl benzene to benzene, benzoic acid is formed as intermediate substance.

• The process involved in conversion is given in the attachment.

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