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Explain about the test for phosphorous in an organic compound.

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  • A solid organic compound is strongly heated with a mixture of Na2CO3 and KNO3 . Phosphorous present in the compound is oxidised to sodium phosphate. 
  • The residue is extracted with water and boiled with cone. HNO3 . A solution of ammonium molyixiate is added to this solution. 
  • A canary yellow precipitate shows the presence of phosphorous.

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