Question

Is styrene considered an aromatic?

Answer 1

Styrene, `C_6H_5CH=CH_2`, is indeed an aromatic hydrocarbon.

Explanation:

The problem with styrene is that it rapidly polymerizes to polystyrene (which is ubiquitously used as packing material). `C_6H_5CH=CH_2`, if you can get it, would have a very short shelf life.