Consider the following reactions NiS + HNO3 + HCl A + NO + S + H2O A + NH4OH + H3C โ€“ C = N โ€“ OH H3C โ€“ C = N โ€“ OH B + NH4Cl + H2O The number of protons that do n | JEE Mains Chemistry Past Papers โ€” Chem-Mantra | Chem-Mantra