Question

State in the above reactions a reason for the formation of the respective acids from cone. H₂SO₄ . 

Answer 1

The reason for the formation of the respective acids from cone. H₂SO₄ is the volatility of the acid formed. At room temperature or above HCl is a gas while HNO₃ , which is a liquid at room temperature, volatileses at the reaction temperature (w 200°C).