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 ?
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'.
Since the organic compound 'A' reduces ammoniacal silver nitrate (Tollen's reagent), it must be an aldehyde. Moreover, with Brady's reagent (2, 4-dinitro phenyl hydrazine) it gives a precipitate of molecular formula C9H10N4O4 it must be propanal (CH3CH2CHO). The reactions are as follows