For the detection of phosphorus, the organic compound after fusion with Na2O2 is extracted with water, boiled with HNO3 and then ammonium molybdate added to it. A yellow precipitate is obtained which is due to the formation of:
A
ammonium phosphate
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B
ammonium phosphomolybdate
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C
ferric phosphate
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D
disodium ammonium phosphate
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Solution
The correct option is B ammonium phosphomolybdate Correct answer : (B) Na3PO4+3HNO3→H3PO4+3NaNO3