Which of the following reaction(s), takes place with the evolution of nitrogen gas:

$Thiourea\underset{0°C}{\overset{NaN{O}_2,HCl}{\to }}$

$\begin{array}{l}D-mannose\underset{\Delta }{\overset{phenylhydrazine\left(excess\right)}{\to }}\\ (C-2epimerofD-\text{glucose})\end{array}$

$p-methylbenzoylchloride\underset{2.NaN{O}_2/HCl,25°C}{\overset{1.Na{N}_3\left(aq\right),\Delta }{\to }}$