Nitric acid [conc]
`HNO_(3) +3HCl to ______+______[Cl]`
`[Au+[Cl]to______`]

Hydrochloric acid NH_(4)OH +HCl to______+______

Nitric acid NH_(4)OH +HNO_(3) to____+_____

Nitric acid NH_(3)+HNO_(3) to_______

Chlorine [ammonia in excess] NH_(3)+Cl_(2)to______+N_(2)[g] NH_(3)+HCl to______ __________________ 8NH_(3)+Cl_(2) to______+______[g]

Addition of conc. HNO_3 to conc. H_2 SO_4 gives

Anisole with conc. HNO_(3) and conc. H_(2)SO_(4) gives

Anisole with conc. HNO_(3) and conc. H_(2)SO_(4) gives

Pb on reaction with conc. HNO_3 gives

Metal which become passive with conc. HNO_(3)

2 mL each of conc. HCl, HNO_(3) and a mixture of conc. HCl and conc. HNO_(3) in the ratio of3 : 1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C. The metal could be