In qualitative test for identification of presence of phosphorus, the compound is heated with an oxidising agent. Which is further treated with nitric acid and ammonium molybdate respectively. The yellow coloured precipitate obtained is:
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The organic compound is fused with sodium peroxide. The fused mass is then extracted with water. The aqueous solution so obtained is boiled with concentrated nitric acid and ammonium molybdate solution is added to it. A yellow solution or precipitate indicates the presence of phosphorus in the organic compound. The yellow precipitate is of ammonium phosphomolybdate
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