Chemistry - Aromatic Hydrocarbon Question with Solution | TestHub

${\mathrm{Mg}}_2{\mathrm{C}}_3\stackrel{{\mathrm{H}}_2\mathrm{O}}{\to }\mathrm{L}\underset{\text{ iron tube }}{\overset{\text{ Re }\mathrm{d}\text{ hot }}{\to }}\mathrm{M}\underset{{\mathrm{H}}_2{\mathrm{SO}}_4}{\overset{{\mathrm{HNO}}_3}{\to }}\mathrm{P}$

Major product (P) will be :