The number of aromatic isomers possible for $C_7{H}_{8}O$  is

Number of Aromatic Isomers for C₇H₈O

The molecular formula C₇H₈O has five possible aromatic isomers:

• o-cresol (ortho-cresol)
• m-cresol (meta-cresol)
• p-cresol (para-cresol)
• benzyl alcohol
• anisole

The first three are positional isomers of methylphenol where the methyl group and hydroxyl group attach at different positions on the benzene ring. Benzyl alcohol and anisole are structural isomers with the hydroxyl and methoxy groups arranged differently but still having the same molecular formula.