Specify the number of possible isomers of nitrobenzoic acid. Write the name of one of these isomers. Abbreviate ortho (o), meta (m) and para (p), no italics, if you elect to use these terms. Specify the number of possible isomers of aromatic compounds with the formula C7H8O. Write the name of one of these isomers. Abbreviate ortho (o), meta (m) and para (p), no italics, if you elect to use these terms.