What term describes two carbon atoms?

• A. monocarbon
• B. tricarbon
• C. dicarbon
• D. tetracarbon

Answer: (C)

Two carbon atoms are described using a numerical prefix system. The prefixes come from Greek/Latin roots: mono- for one, di- for two, tri- for three, and so on. When you combine the carbon root with the two-count prefix, you get dicarbon, meaning two carbon atoms together. This is the standard term for describing two carbons. The other options would describe different counts: monocarbon for one, tricarbon for three, and tetracarbon for four. In this context, dicarbon is the correct term.