試題詳解

6. Consider two organic molecules, ethanol and benzene. One dissolves in water and the other does not. Why?
(A)They have different molar masses.
(B)One is ionic, the other is not.
(C)One is an electrolyte, the other is not.
(D) Ethanol contains a polar O–H bond, and benzene does not.
(E) Two ofthese.