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What is aquaregia ? How is it formed ?...

What is aquaregia ? How is it formed ?

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Aquaregia is a mixture of concentrated HCl and concentrated `HNO_3` in the ratio 3:1 by volume.
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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
  1. What happens when ammonium chloride is heated with slaked lime?

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  2. Why is ammonia not dried by concentrated sulphuric acid ?

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  3. What is aquaregia ? How is it formed ?

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  4. Why ammonia gas is not collected by the displacement of water?

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  5. Which catalyst is used in the manufacture of ammonia by Haber's proces...

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  6. Write two uses of ammonia.

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  7. What happens when solid ammonium chloride is added to sodium aluminate...

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  8. Name three metals which are rendered passive to conc. HNO3.

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  9. What happens when NH4NO3 is heated (equation only) ?

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  10. Why do the elements of nitrogen family show almost zero electron affin...

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  11. Between N and O, which one has higher ionisation potential ?

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  12. Give the trend of electronegativity of elements of Group-VA.

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  13. Between NH3 and PH3 which one is more basic ?

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  14. Between N2O3 and N2O5, which oxide is more acidic ?

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  15. Among NH3, PH3, AsH3, SbH3, BiH3, which one is the best reducing agent...

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  16. What happens when NH4Cl is heated with Ca(OH)2 (equation only) ?

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  17. Describe the preparation of Ozone.

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  18. Explain the structure of SO2 molecule.

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  19. Write some uses of sulphur dioxide.

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  20. Explain that bleaching action of CL2 is permanent, while that of SO2 i...

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