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Concentrated nitric acid oxidises phosph...

Concentrated nitric acid oxidises phosphours `(P)` into:

A

`PH_(3)`

B

`P_(2)O_(5)`

C

`H_(3)PO_(3)`

D

`H_(3)PO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
D
`P_(4)+20HNO_(3)` (concentrated) `to 4H_(3)PO_(4)+20NO_(2) + 4H_(2)O`
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RESONANCE-P BLOCK ELEMENTS-Exercise 1 part 2 objective que
  1. Cold solution of barium nitrite on mixing with sulphuric acid produces...

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  2. Nitric acid usually turns yellow on standing.This is due to

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  3. Concentrated nitric acid oxidises phosphours (P) into:

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  4. Which of the following metals does not dissolve in concentrated HNO(3)...

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  5. The compound which has molecular nature is gas phase but ionic in soli...

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  6. When P(4)O(10) is dissolved in water, the acid formed finally is :

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  7. The substance used as a fast drying agent in the laboratory is:

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  8. Metaphosphoric acid exists in polymeric form and may have :

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  9. On heating ammonium dichromate, the gas evolved is :

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  10. One mole of calciium phosphide on reaction with excess water gives

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  11. Which statement is not correct for nitrogen?

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  12. Nitrogen is obtained by the thermal decomposition of :

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  13. Nitrogen gas is prepared :

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  14. Which of the following compound is tribasic acid?

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  15. Which of the following hydrides of the oxygen family shows the lowest ...

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  16. Which of the following statement is false ?

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  17. The compound which on strong heating gives oxygen is :

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  18. Ozone layer is being depleted. This is due to :

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  19. A considerable part of the harmful ultraviolet radiation of the sun do...

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  20. Estimation of ozone can be made quantitatively by :

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