(C) The reaction of $N_2$ with calcium carbide $(CaC_2)$ at high temperatures (approx. $1000 \ ^\circ C$) produces calcium cyanamide $(CaCN_2)$ and ca

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(C) The reaction of $N_2$ with calcium carbide $(CaC_2)$ at high temperatures (approx. $1000 \ ^\circ C$) produces calcium cyanamide $(CaCN_2)$ and carbon $(C)$.The chemical equation is: $CaC_2 + N_2 \rightarrow CaCN_2 + C$.This mixture of $CaCN_2$ and $C$ is known as nitrolim,which is used as a fertilizer.