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Extra pure N2 can be obtained by heating...

Extra pure `N_2` can be obtained by heating

A

`NH_(3)` with `CuO`

B

`NH_(4)NO_(3)`

C

`(NH_(4))_(2)Cr_(2)O_(7)`

D

`Ba(N_(3))_(2)`

Text Solution

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The correct Answer is:
D
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IIT-JEE PREVIOUS YEAR (CHEMISTRY)-P BLOCK ELEMENTS-Objective Questions I
  1. The reaction of white phosphorus with aqueous NaOH gives phosphine alo...

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  2. Which ordering of compounds is according to the decreasing order of th...

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  3. Extra pure N2 can be obtained by heating

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  4. The reaction of P with X leads selectively to P4 O6. X is

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  5. The percentage of p-character in the orbitals forming p-p bonds in P4 ...

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  6. Which of the following will not be oxidised by O(3)?

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  7. Which gas is evolved when PbO(2) is treated with conc HNO(3) ?

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  8. Blue liquid which is formed at - 30^@ C by mixing of two gases is.

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  9. Thermodynamically most stable allotrope of phosphorus is :

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  10. Which of the following oxoacids of sulpher has -O-O- linkage ?

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  11. For H(3)PO(3) and H(3)PO(4) the correct choice is

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  12. Polyphosphates are used for softening agents because they

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  13. The number of S-S bonds, in sulpher trioxide trimer (S(3)O(9)) is :

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  14. Ammonia can be dried by :

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  15. Amongest H(2)O,H(2)S,H(2)Se and H(2)Te the one with highest boiling p...

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  16. The correct order of acidic strength is

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  17. The number of P-O-P bonds in cyclic metaphosphoric acid is.

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

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  19. Sodium thiosulphate is prepared by

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  20. There is no S-S bond in

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