Solution:concept - Chemical decomposition is the process of breaking down a single chemical element into two or more components. The chemical breakdown is another term for chemical decomposition. The precise opposite of chemical synthesis is known as a chemical breakdown.
Calcium carbide and carbon monoxide are produced when and react with one another.
Calcium carbide has the formula and carbon monoxide has the formula CO.
The following is the reaction between and :
So, we can describe the reaction in which calcium oxide and carbon combine to form calcium carbide and carbon monoxide.
The reaction in the question occurs at a temperature of roughly 700°C. The process requires a high temperature, which is impossible to obtain using traditional combustion methods. So, with graphite electrodes, this reaction is carried out in an electric arc furnace.
Hence, the correct option is (2).