Which of the following is a hydrophobic material?

a. paper c. wax

b. table salt d. sugar

Wax.

Explanation:

Hydrophobic material may be defined as the material that contains the non polar molecule and hydrophobic interaction in their structure. The hydrophobic molecule are soluble in non polar solvents.

Wax is made of lipids. The lipids are non polar molecule and are hydrophobic in nature. Wax are made of large hydrocarbon part that are insoluble in water and can be easily soluble in non polar solvents.

Thus, the correct answer is option (c).