Which of the following is a feature of tertiary alcohols?

Tertiary alcohols are characterized by having the hydroxyl (-OH) group attached to a carbon atom that is bonded to three other carbon atoms. This means that the carbon with the -OH group is connected to three carbon chains, making it a tertiary structure.

In organic nomenclature, the classification of alcohols is based on the number of carbon atoms bonded directly to the carbon atom that carries the hydroxyl group. In the case of tertiary alcohols, this results in a structure where the carbon atom with the -OH group does not have any hydrogen atoms attached; instead, it is fully substituted with three other carbon atoms.

Understanding the structure of tertiary alcohols is critical for recognizing their properties and reactivity in organic chemistry. The presence of three carbon chains attached to the carbon with the hydroxyl group leads to differences in physical and chemical properties compared to primary or secondary alcohols, which have fewer carbon chains in relation to the carbon with the -OH group.