Alcohol= Alcohol is a organic compound whose molecule contain one or more hydroxyl group attached to a carbon atom.

Ethar= Ether is an organic molecule which has an oxygen atom bound to two carbon atoms in two sides.

Because hydrogen bonds can't form between the molecules in the ether, the boiling point of this compound is more than 80C lower than the corresponding alcohol. Because there are no hydrogen bonds to organize the structure of the liquid, the ether is significantly less dense than the corresponding alcohol.

Remember, typical room temperature is about 25 °C. That means that at room temperature, dimethyl ether is a gas, because it is above its boiling point. Ethanol, on the other hand, is a liquid at room temperature. ... The ethanol also contains a carbon-carbon bond and an oxygen-hydrogen bond

Ethers are similar in structure to alcohols, and both ethers and alcohols are similar in structure to water. In an alcohol one hydrogen atom of a water molecule is replaced by an alkyl group, whereas in an ether both hydrogen atoms are replaced by alkyl or aryl groups.Jul 5, 2019