Zn gives H2 gas with H2SO4 and HCl but not with HNO3 because

Zinc gives H2 gas with dil. H2SO4/HCl but not with HNO3 because in HNO3, NO3⊝, NO and NO2  (based upon the concentration of HNO3)[Zn +HNO3 →  ZnNO32  + 2H]× 4(nearly 6%)HNO3 + 8H+→ NH3  + 3H2ONH3 + HNO3→  NH4NO3Zn +10HNO3 →  4ZnNO32  + NH4NO3 + 3H2OZn ishaving lesser reduction potential than hydrogen in electrochemical series. So Zn displaces H2 from dilute H2SO4 and HCl