Classify the following compounds into Acyclic,Alicyclic,Benzenoid,and Non-benzenoid: Tropolone,Propane,Benzene,Butene,Ethane,Acetic acid,Tetrahydrofuran,Cyclohexene,Naphthalene,Cyclobutane.

(N/A) The classification of the given compounds is as follows:
$1$. Acyclic (Open chain): {Acetic acid,Ethane,Butene,Propane}
$2$. Alicyclic: {Tetrahydrofuran,Cyclohexene,Cyclobutane}
$3$. Benzenoid: {Naphthalene,Benzene}
$4$. Non-benzenoid: {Tropolone}