Dipole-Induced Dipole Forces of Attraction Exist Between Water and Gasoline

question 33

Multiple Choice

Dipole-induced dipole forces of attraction exist between water and gasoline, and yet these two substances do not mix because water has such a strong attraction for itself. Which of the following compounds might best help to make these two substances mix into a single liquid phase?

• A) the molecule on the far left because the O-H bond is polar and the carbon and hydrogen bonds are nonpolar
• B) the molecule in the middle because when the salts mix into the water, it will help separate the water and decrease the attraction for itself
• C) The molecule on the right will form attractions with the polar ends of the water, allowing the gasoline a chance to mix with the water.
• D) All of these molecules would be equally effective at increasing the mixing of gasoline and water.

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