Final answer:
The provided reactions do not include the correct chemical process for the synthesis of CS2 (carbon disulfide) as it requires carbon reacting with sulfur. Without the balanced equation for CS2's actual formation, it's impossible to determine the moles of carbon monoxide formed.
Step-by-step explanation:
The question asks how many moles of carbon monoxide form at the same time that 0.246 mol of CS2 forms in the reaction involving coke and sulfur dioxide. The provided reactions suggest a sequence where carbon first reacts with oxygen to form carbon monoxide, which then may react further to form carbon dioxide. However, the sequence given does not align precisely with the formation of CS2 (carbon disulfide). The preparation of carbon disulfide typically involves carbon (or coke) reacting with sulfur, not sulfur dioxide, and there isn't a direct correlation in the provided reactions showing the formation of carbon monoxide during the synthesis of CS2. Therefore, with the information given, it's not possible to determine the number of moles of CO formed without the correct balanced chemical equation for the synthesis of CS2 from coke and sulfur dioxide.