The reaction that does not produce nitrogen is :

Normal heating; ${\mathrm{NH}}_4{\mathrm{NO}}_3\stackrel{\mathrm{\Delta }}{\to }{\mathrm{N}}_2\mathrm{O}+2{\mathrm{H}}_2\mathrm{O}$

but Explosion ${\mathrm{NH}}_4{\mathrm{NO}}_3\to \frac{\mathrm{\Delta }}{\text{ Explosion }}{\mathrm{N}}_2+\frac{1}{2}{\mathrm{O}}_2+2{\mathrm{H}}_2\mathrm{O}$

${\mathrm{NH}}_3+\underset{\left(\text{ excess }\right)}{3{\mathrm{Cl}}_2}\to {\mathrm{NCl}}_3+3\mathrm{HCl}$

Hence, the correct option is B.