Final answer:
The correct name for CS2 is C. carbon disulfide, as per the conventions used in naming binary non-metal compounds.
Step-by-step explanation:
The correct name for the compound CS2 is carbon disulfide. In naming binary non-metal compounds, the convention is to use prefixes to indicate the number of atoms present if there is more than one. Here, sulfur has the prefix 'di-' indicating two sulfur atoms. Since carbon is singular and is the first element, no prefix is required, leading to the name carbon disulfide. Therefore, the answer is 'C. carbon disulfide'.
The correct name for the compound CS2 is carbon disulfide. In naming binary non-metal compounds like this one, the prefix is generally omitted for the first element if there is only one atom of that element, and the appropriate prefix is used for the second element along with changing its ending to '-ide'. Since there are two sulfur atoms we use the prefix 'di-', resulting in 'disulfide'. Thus, option C, carbon disulfide, is the correct answer.