Question

Hydrophobic/nonpolar molecules are those that:

a) Attract water molecules
b) Repel water molecules
c) Are soluble in water
d) Form hydrogen bonds with water

Answer 1

Hydrophobic/nonpolar molecules repel water molecules, do not form hydrogen bonds with water, and are not soluble in water.

Step-by-step explanation:

Hydrophobic/nonpolar molecules are those that repel water molecules. The term 'hydrophobic' comes from the Greek words 'hydro' (water) and 'phobic' (fearing), indicating that hydrophobic molecules do not interact well with water. This property is due to the lack of polarity in hydrophobic molecules, such as oils and fats, meaning they do not form hydrogen bonds with the polar water molecules and are not soluble in water. In contrast, polar substances that can mix with or dissolve in water are hydrophilic ('water-loving'). Thus, the correct answer to the question is (b) Hydrophobic/nonpolar molecules are those that repel water molecules.