An element was burnt in limited supply of air to give oxide A which on treatment with water gives an acid B. Acid B on oxidation gives acid C which gives yellow precipitate with AgNO3. Identify A
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P2O3 (Phosphorus trioxide) is your answer.
Phosphorus trioxide is one of the popular chemical compounds with the molecular formula P4O6.
Even it is properly being named tetraphosphorus hexoxide.
Even it is the colorless solid is structurally related to adamantine as well as formally the anhydride of phosphorous acid, H3PO3.
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