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Which gas is evolved when PbO(2) is trea...

Which gas is evolved when `PbO_(2)` is treated with conc `HNO_(3)` ?

A

`NO_(2)`

B

`O_(2)`

C

`N_(2)`

D

`N_(2)O`

Text Solution

Verified by Experts

The correct Answer is:
B
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IIT-JEE PREVIOUS YEAR (CHEMISTRY)-P BLOCK ELEMENTS-Objective Questions I
  1. The percentage of p-character in the orbitals forming p-p bonds in P4 ...

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

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

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

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  5. Thermodynamically most stable allotrope of phosphorus is :

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

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

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  8. Polyphosphates are used for softening agents because they

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

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  10. Ammonia can be dried by :

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

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  12. The correct order of acidic strength is

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

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

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  15. Sodium thiosulphate is prepared by

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  16. There is no S-S bond in

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  17. Which one of the following is the strongest base ?

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  18. Among the trihalides of nitrogen, which is the least basic ?

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  19. Which of the followng oxides of nitrogen is a coloured gas ?

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  20. The bonds present in N(2)O(5) are .

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