when H2S is passed through nitric acid what is the product?
Nitric acid is an oxidizing agent. When H2S is passed through nitric acid, it oxidizes the S2- into colloidal S0. The reaction is as follows:
H2S + 2HNO3S + 2NO2 + H2O
H2S + 2HNO3S + 2NO2 + H2O