Alcohols are isomeric with

Same molecular formula but difference in their properties. Alcohols are isomeric with ethers.

$\mathrm{Ex}: {\mathrm{C}}_2{\mathrm{H}}_6\mathrm{O}$

$$\begin{gathered} {\mathrm{CH}}_3{\mathrm{CH}}_2-\mathrm{OH} {\mathrm{CH}}_3-\mathrm{O}-{\mathrm{CH}}_3 \\ \mathrm{alcohol} \mathrm{ether} \end{gathered}$$