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When a mixture containing phosphate is h...

When a mixture containing phosphate is heated with conc. `HNO_(3)` and ammonium molybdated solution, a canary yellow precipitate is formed . The formula of the yellow precipitate is

A

`(NH_(4))_(3)PO_(4)`

B

`(NH_(4))_(3)PO_(4). 12Mo O_(4)`

C

`(NH_(4))_(3)PO_(4). 12 Mo O_(3)`

D

`(NH_(4))_(3)PO_(4). (NH_(4))_(2)MO_(4)`

Text Solution

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The correct Answer is:
B
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RESONANCE-QUALITATIVE ANALYSIS (ANION)-Exercise-1
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  3. Anion (X^(2-)) is :

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  4. The acidic solution of a salt produced a deep blue colour with starch ...

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  5. Sulphide ion reacts with [Fe(CN)(5)NO] to form a purple coloured compo...

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  6. Which of the following pair of anions are identified by conc. H(2)SO(4...

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  7. Which of the following anion behaves in a different manner than other ...

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  8. Which of the following reagents turns white precipitate of AgCl yellow...

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  9. A Unknown salt (S) when heated with dil H(2)SO(4) does not evolve brow...

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  10. When a mixture of solid NaCl, solid K(2)Cr(2)O(7) is heated with conc....

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  11. AgCl dissolves in ammonia solution giving

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  12. A mixture upon along adding conc. H(2)SO(4) gives deep red fumes. It m...

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  13. The acidic solution of a salt produced a deep blue colour with starch ...

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  14. A colouless solution of a compound gives a precipitate with AgNO(3) so...

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  15. Which of the following gas turn starch iodide paper blue ?

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  16. Nitrate is confirmed by ring test. The brown colour of the ring is du...

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  17. When a mixture containing phosphate is heated with conc. HNO(3) and am...

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  18. A metal salt solution gives a yellow precipitate with silver nitrate. ...

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  19. Match the anions with the changes observed on qualitative analysis :

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  20. Match the reagent which are used in qualitative analysis of given anio...

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