Fix lack of coherence in the sentence: n-Propylbenzene (phenylpropane) is an aromatic hydrocarbon consisting of a propyl group as a substituent on a benzene ring. It is a colorless liquid.
n-Propylbenzene (phenylpropane) is an aromatic hydrocarbon consisting of a propyl group as a substituent on a benzene ring. n-Propylbenzene is a colorless hydrocarbon.