Question

(d)
spell out the full name of the compound.

Explanation:

Step1: Identify the longest carbon chain

The longest carbon chain has 5 carbon atoms (pentane - based).

Step2: Locate the substituents

There is a methyl group ($\text{CH}_3$) on the third carbon and a hydroxyl group ($\text{OH}$) on the third carbon.

Step3: Name the compound

For alcohols, the suffix is -ol. The naming follows the format: [substituent position - substituent name][parent chain name][functional group suffix].

Answer:

3 - methyl - 3 - pentanol