Question

explain why can't we prepare sulphuric acid from sulphate salt ?​

Answer 1

Answer:

Sulfuric acid is a colorless oily liquid. It is soluble in water with release of heat. It is corrosive to metals and tissue. It will char wood and most other organic matter on contact, but is unlikely to cause a fire.

Answer 2

Explanation:

Water is added to the disulfuric acid, H2S2O7, to produce sulfuric acid, H2SO4 H2S2O7(l)+H2O(l) → 2H2SO4(l). The oxidation of sulfur dioxide to sulfur trioxide in step (3) above is an exothermic reaction (i.e., energy is released).