Question

The boiling point of water, ethyl alcohol and diethyl ether are ${100}^{o}C,{78.5}^{o}C$ and ${34.6}^{o}C$ respectively. The intermolecular forces will be in the order of :

• A. water> ethyl alcohol> diethyl ether
• B. ethyl> alcohol> water> diethyl ether
• C. diethyl> ethyl alcohol> water
• D. diethyl ether> water> ethyl alcohol

Answer 1

The correct option is A water> ethyl alcohol> diethyl ether

The boiling point is directly proportional to the inter-molecular forces as more energy is needed to overcome the inter-molecular forces.

Hence, inter-molecular forces will be in the order of $water>ethanol>diethylether.$