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Account for the following: Dioxygen is ...

Account for the following: Dioxygen is a gas but sulpher is a solid.

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ASSAM ACADEMIC CENTRE-The p-Block Elements-Example
  1. Why does Nitrogen show catenation properties less than phosphorus?

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  2. Write the disproportionation reaction of H3PO3.

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  3. Account for the following: Dioxygen is a gas but sulpher is a solid.

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  4. Knowing the electron gain enthalphy values for OrarrO^- and O rarrO^2-...

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  5. Name a aerosol that depletes ozone.

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  6. Write the conditions to maximize the yield of H2SO4 by contact process...

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  7. How is SO2 an air pollutant?

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  8. Why fluorine is a powerful oxidising agent?

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  9. Why fluorine formes only one oxacid HOF?

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  10. Write two uses of ClO2.

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  11. Why are halogens coloured?

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  12. Write the reactions of F2 and Cl2 with water.

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  13. How can you prepare Cl2 from HCl and HCl from Cl2? Write reactions onl...

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  14. What are the oxidation states of phosphorus in the following: H3PO3

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  15. What are the oxidation states of phosphorus in the following: PCl3

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  16. What are the oxidation states of phosphorus in the following: Ca3P2

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  17. What are the oxidation states of phosphorus in the following: Na3PO4

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  18. What are the oxidation states of phosphorus in the following: POF3

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  19. Write balanced equations for the following: NaCl is heated with sulphu...

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  20. Write balanced equations for the following: Chlorine gas is passed int...

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