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When PbO(2) reacts with conc. HNO(3) the...

When `PbO_(2)` reacts with conc. `HNO_(3)` the gas evolved is

A

`NO_2`

B

`O_2`

C

`N_2`

D

`N_(2)O`

Text Solution

Verified by Experts

The correct Answer is:
B
`PbO_(2)` is a powerful oxidizing agent and liberate `O_2` when treated with acids.
`2PbO_(2)+4HNO_(3) to 2Pb(NO_3)_(2)+2H_(2)O+O_(2) uparrow`
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DISHA PUBLICATION-THE P-BLOCK ELEMENTS (GROUP 15, 16, 17 & 18)-Exercise
  1. By passing H(2)S gas in acidified KMnO(4) solution, we get

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  2. Oxidation of thiosulphate by iodine gives

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  3. When PbO(2) reacts with conc. HNO(3) the gas evolved is

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  4. The compound which gives off oxygen on moderate heating is:

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  5. Oxidation state exhibited by sulphur is

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  6. On electrolysis of dilute sulphuric acid using platinum electrodes, th...

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  7. A gas that cannot be collected over water is.

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  8. Sodium thiosulphate is prepared by

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  9. Which of the following is not oxidized by O(3)?

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  10. Which one of the following compounds is a peroxide?

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  11. Sulphur trioxide can be obtained by which of the following reactions:

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  12. Which of the following does not give oxygen on heating?

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  13. Acidity of diprotic acids in aqueous solutions increases in the order

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  14. In the reaction: 3Br(2)+6OH^(Theta)rarr 5Br^(Theta)+BrO(3)^(Theta)+3H...

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  15. In the case of alkali metals, the covalent character decreases in the ...

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  16. Potassium chlorate on heating with cone H2SO4 gives

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  17. In the manufacture of bromine from sea water the mother liquor contain...

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  18. Which of the following species has four lone..

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  19. Which one is the correct order of the size of the iodine species?

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  20. A one litre flask is full of brown bromine vapours. The intensity of b...

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