How many carbon atoms does the prefix "oct-" represent?

How many carbon atoms does the prefix "oct-" represent?

• A. Six
• B. Seven
• C. Eight
• D. Nine

Answer: (C)

The prefix "oct-" is derived from the Greek word for eight. In organic nomenclature, this prefix is used to indicate compounds that contain eight carbon atoms in their longest carbon chain. For instance, in the case of octane, which is a hydrocarbon, the name clearly reflects its structure comprising eight carbon atoms. This understanding is fundamental when analyzing and naming alkanes, as prefixes such as "oct-" provide essential information regarding the molecular backbone in organic compounds. In this context, recognizing "oct-" as signifying eight carbon atoms aids in accurately identifying and constructing the molecular formulas of various organic substances.

The prefix "oct-" is derived from the Greek word for eight. In organic nomenclature, this prefix is used to indicate compounds that contain eight carbon atoms in their longest carbon chain. For instance, in the case of octane, which is a hydrocarbon, the name clearly reflects its structure comprising eight carbon atoms. This understanding is fundamental when analyzing and naming alkanes, as prefixes such as "oct-" provide essential information regarding the molecular backbone in organic compounds. In this context, recognizing "oct-" as signifying eight carbon atoms aids in accurately identifying and constructing the molecular formulas of various organic substances.