c
Reaction of \(Zn\) with dil. \(HNO_{3}\) \(4 \mathrm{Zn}+10 \mathrm{HNO}_{3}(\mathrm{dil}) \longrightarrow 4 \mathrm{Zn}\left(\mathrm{NO}_{3}\right)_{2}+5 \mathrm{H}_{2} \mathrm{O}+\mathrm{N}_{2} \mathrm{O}\)

(\(Zn\) reacts differently with very dilute HNO \(_{3}\) )

Reaction of \(Zn\) with conc. \(HNO_{3}\) \(\mathrm{Zn}+4 \mathrm{HNO}_{3}(\mathrm{conc.}) \longrightarrow \mathrm{Zn}\left(\mathrm{NO}_{3}\right)_{2}+2 \mathrm{H}_{2} \mathrm{O}+2 \mathrm{NO}_{2}\)