The product obtained as a result of a reaction of nitrogen with CaC2 is:

The product obtained as a result of a reaction of nitrogen with calcium carbide (CaC2) is calcium cyanide (CaCN2). The balanced chemical equation for this reaction is:

CaC2 + N2 → CaCN2 + C

Calcium carbide reacts with nitrogen gas at high temperatures to form calcium cyanamide and carbon. Therefore, the correct answer is Ca(CN)2 although it is more accurately represented as CaCN2 in the reaction because of the formation of calcium cyanamide.