4. If you add chromate, an oxidizing agent, to each of the following, would a green $Cr^{3+}$ solution be formed?
a. 3-pentanol
b. 2-methyl-2-butanol
c. 1-propanol
5. If an alcohol solution has a pH of 5, would it be a primary alcohol, a secondary alcohol, a tertiary alcohol, or a phenol?