MolSynapsequestion bank
MolSynapse / Question bank / IUPAC Nomenclature and Structural Isomerism / Structural isomerism: chain, position, functional, metamerism
JEE Advanced levelNumerical answerDifficulty 3 of 3nm155

How many structural isomers (no stereoisomers) contain a benzene ring and have the molecular formula ? Count phenols, aromatic alcohols and aromatic ethers together.

Numerical answer type, tolerance 0.5.

Answer: 19

Enumerated: monosubstituted benzenes with C2H5O (2-phenylethanol, 1-phenylethanol, ethoxybenzene, benzyl methyl ether) = 4; disubstituted with {CH3, CH2OH}, {CH3, OCH3}, {C2H5, OH} at o/m/p = 3 x 3 = 9; trisubstituted dimethylphenols = 6. Total 4 + 9 + 6 = 19.
Practice IUPAC Nomenclature and Structural Isomerism More on Structural isomerism: chain, position, functional, metamerism

More questions on Structural isomerism: chain, position, functional, metamerism