Benzene can be prepared from aromatic acids through decarboxylation reaction. In this process, the sodium salt of the benzoic acid (sodium benzoate) is heated with soda lime to produce benzene along with sodium carbonate.

How is benzene obtained?

In Europe, benzene is obtained primarily from pyrolysis gasoline coproduced in the steam cracking of naphtha, gasoil or condensates to make olefins. ... The amount of aromatics produced can be increased by employing heavier feedstocks.

In which of the following reaction benzene is obtained?

Ethene + 1, 3-butadiene.