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What happens when H3PO3 is heated?...

What happens when `H_3PO_3` is heated?

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  • The d and f-block elements

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ASSAM ACADEMIC CENTRE-The p-Block Elements-Example
  1. Write a balanced equation for the hydrolytic reaction of PCI5 in heavy...

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  2. What is the basicity of H3PO4?

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  3. What happens when H3PO3 is heated?

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  4. List the important sources of sulphur.

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  5. How will you account for the following: Among the hydrides of group 16...

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  6. Answer the following: Why H2O is a liquid whereas H2S is gas at room t...

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  7. Which of the following does not react with oxygen directly? Zn, Ti, Pt...

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  8. Complete the following reactions: C2H4 + O2 rarr

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  9. Complete the following reactions: 4Al + 3O2 rarr

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  10. Why does O3 act as a powerful oxiding agent? How is O3 estimated quant...

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  11. Why does O3 act as a powerful oxiding agent? How is O3 estimated quant...

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  12. What happens when sulphur dioxide is passed through an aqueous solutio...

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  13. Comment on the nature of S-O bonds formed in SO2 molecule. Are these b...

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  14. How is the presence of SO2 detected?

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

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  16. Give reasons: The bond dissociation energy of F2 is less than that of ...

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  17. Give two examples of anomalous behaviour of fluorine?

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  18. Sea is the greatest source of some halogens. Comment.

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  19. Explain the bleaching action of Cl2.

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  20. Name two poisonous gases which can be prepared from chlorine gas.

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