Question

how do u get benzene from acetylene??? Explain the halogination and alkylation of benzene...

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Answer 1

Answer:

Benzene is prepared from ethyne by the process of cyclic polymerization. In this process, Ethyne is passed through a red hot iron tube at 873 K. The ethyne molecule then undergoes cyclic polymerization to form benzene.

The Halogenation of Benzene. Halogenation is an example of Electrophillic aromatic substitution. In electrophilic aromatic substitutions, a benzene is attacked by an electrophile which results in substation of hydrogens.

Alkylation means substituting an alkyl group into something - in this case into a benzene ring. A hydrogen on the ring is replaced by a group like methyl or ethyl and so on. The facts. Benzene is treated with a chloroalkane (for example, chloromethane or chloroethane) in the presence of aluminium chloride as a catalyst.

Explanation:

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