Compare the number of hydrogen atoms per carbon atom of an arene with that of an alkane, having same number of carbon atoms.

Explanation

Arene is a cyclic aromatic hydrocarbon
The general formula of arene is `C_nH_(2n-6x)`, where x represents number of carbon atoms present in it. Arene has less number of hydrogen atoms per carbon atom, compared to that of an alkane.
For example, a six carbon arene, benzene has one hydrogen atom per carbon atom.
But a six carbon alkane, hexane has 2.333 H atoms per each.