Question

Which of the following is true regarding density?

• A. Diethyl ether has higher density than water.
• B. Diethyl ether has lower density than water.
• C. Diethyl ether is as dense as water.
• D. The density of diethyl ether depends on its method of preparation.

Answer 1

The correct option is B Diethyl ether has lower density than water.

Diethyl ether has lower density than water. The density of diethyl ether is 713 kg/m${}^3$. The density of water is 1000 kg/m${}^3$.
Water molecules are closer to each other than the molecules of ether. This is due to intermolecular hydrogen bonding in water which is not possible in diethyl ether.