Write with a balanced chemical equation how gypsum is used for the conversion of ammonia into ammonium sulnate without using H2SO4 ?
Give the structure of pyrphyuric acid. How would you prepare it? What would you observe when colourless HI is added to pyrphuric acid ?
Pyrosulphuric acid is oleum. It is obtained when sulphur trioxide gas is passed through conc H2SO4 solution.
The structure of pyrosulphric acid is
When colourless HI is added to pyrosulphuric acid, its colour becomes violet because pyrosulphuric acid oxidises I- to I2.
An organic compound 'A' on treatment with ammoniacal silver nitrate gives metallic silver and produces a yellow crystalline precipitate of molecular formula C9H10N4O4 on treatment with Brady's reagent. Give the structure of the organic compound 'A'.