When calcium oxide is heated with carbon, the oxide will
Answer Details
When calcium oxide is heated with carbon, it will be converted to carbide. This is because calcium oxide and carbon undergo a redox reaction in which calcium oxide is reduced to calcium carbide, while carbon is oxidized to carbon monoxide. The balanced chemical equation for this reaction is:
CaO + 3C → CaC2 + CO
So, the correct option is "be converted to carbide".