Alcohols with molecular formula C n H 2 n + 2 O are isomeric with

Alcohols have the molecular formula as ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}\mathrm{O}$. They do not have any unsaturation. The carboxylic acids have the unsaturation with two oxygen atoms. Ether does not have the unsaturation with one oxygen. Ethers also have the unsaturation with two oxygen atoms. Aldehydes have the unsaturation with one oxygen.

Hence, alcohols with molecular formula ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}\mathrm{O}$ are isomeric with ethers.