Classify each of the following alcohols as a primary, secondary, or tertiary alcohol.
a. CH_{3}-CH_{2}-CH_{2}-OH b. \begin{matrix} \quad\quad\quad\quad \ \ CH_{3}\\ CH_{3}-CH_{2}-\overset{|}{\underset{|}{C}} -OH\\ \quad\quad\quad\quad \ \ CH_{3} \end{matrix}
c. \begin{matrix} \ \ CH_{3} \quad\quad\quad \ \ \ CH_{3}\\ CH_{3}-\overset{|}{C}H -\underset{|}{C}H-\overset{|}{C}H-CH_{3} \\ OH \end{matrix} d.
a. This is a primary alcohol. The carbon atom to which the —OH group is attached is bonded to only one other carbon atom.
b. This is a tertiary alcohol. The carbon atom bearing the —OH group is bonded to three other carbon atoms.
c. This is a secondary alcohol. The hydroxyl-bearing carbon atom is bonded to two other carbon atoms.
d. This is a secondary alcohol. The ring carbon atom to which the —OH group is attached is bonded to two other ring carbon atoms.