How would you account for the following:
The boiling points of ethers are much lower than those of the alcohols of comparable molar mass.

Explanation

The boiling points of ehters are lower than those of alcohols of compareble of comparable molecular masses. For example, the boiling points of isomeric n-bytyl alcohol `(C_(4)H_(9)OH)` and diethyl ether `(C_(2)H_(5)-O-C_(2)H_(5))` are 390 K and 308 K respectively. The large difference in the boiling may be attributed to the following reasons :
(i) O-H bond in alcohol is more polar C-O bond in ether.
(ii) Intermolecular hydrogen bonding is present in the molecules of alcohol while it is almost absent in the ether molecules.