There are three possible isomers of C3H8O. These isomers are constitutional isomers, meaning they have the same molecular formula but different connectivity of atoms.1. Propanol also called n-propanol or 1-propanol Structural formula: CH3CH2CH2OHThis is a primary alcohol, where the hydroxyl group -OH is attached to a terminal carbon atom.2. Isopropanol also called 2-propanol or isopropyl alcohol Structural formula: CH3CHOHCH3This is a secondary alcohol, where the hydroxyl group -OH is attached to a non-terminal carbon atom that is bonded to two other carbon atoms.3. Methoxyethane also called ethyl methyl ether Structural formula: CH3OCH2CH3This is an ether, where an oxygen atom is connected to two carbon atoms.These three isomers exhibit constitutional isomerism, as they have the same molecular formula C3H8O but different arrangements of atoms within their structures.