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The compound which gives off oxygen on m...

The compound which gives off oxygen on moderate heating is:

A

cupric oxide

B

mercuric oxide

C

zinc oxide

D

aluminium oxide

Text Solution

Verified by Experts

The correct Answer is:
B
Oxygen can be prepared by heating oxides of Hg, Pb, Ag, Mn and Ba.
`2HgO overset(triangle)(to) 2Hg+O_(2)`
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DISHA PUBLICATION-THE P-BLOCK ELEMENTS (GROUP 15, 16, 17 & 18)-Exercise
  1. Oxidation of thiosulphate by iodine gives

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

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

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  4. Oxidation state exhibited by sulphur is

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

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

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  7. Sodium thiosulphate is prepared by

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

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

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

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

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

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

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

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  15. Potassium chlorate on heating with cone H2SO4 gives

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

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

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

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

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  20. Which is the best description of the behaviour of bromine in the react...

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