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Complete the following reactions: 4Al + ...

Complete the following reactions: `4Al + 3O_2 rarr`

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ASSAM ACADEMIC CENTRE-The p-Block Elements-Example
  1. Which of the following does not react with oxygen directly? Zn, Ti, Pt...

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  2. Complete the following reactions: C2H4 + O2 rarr

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

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

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

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

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

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  8. How is the presence of SO2 detected?

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

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

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  11. Give two examples of anomalous behaviour of fluorine?

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

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  13. Explain the bleaching action of Cl2.

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

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  15. Why is ICL more reactive than I2?

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  16. Why is Helium used in diving apparatus?

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  17. Complete the following equation: XeF6 + H2O rarr.

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  18. Why has it been difficult to study the chemistry of radon?

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  19. Mention the general characteristics of groups 15 elements with referen...

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  20. Why does the reactivity of nitrogen differ from phosphorous?

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