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Discuss the role of chemical factors whi...

Discuss the role of chemical factors which deptets ozone layer.

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R G PUBLICATION-THE p-BLOCK ELEMENTS-EXERCISE
  1. High concentration of ozone is highly explo-sive. Why?

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

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  3. Discuss the role of chemical factors which deptets ozone layer.

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

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  5. Write two differences between rhombic sulpher and monoclinic sulpher.

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

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  7. How is SO2 an air pollutant?

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  8. Describe the conditions of maximum yield of SO3 by contact process in ...

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  9. Write the formula of carnallite and fluoroaptite.

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  10. Account for the following: Halogen are coloured.

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  11. Why fluorine shows only one oxidation state of (-1)?

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  12. Discuss the various factors which affect the decreasing oxidising abil...

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  13. How Cl2 is prepared without heating? How it is prepared electrolytical...

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  14. How gold ornaments are cleaned by aqua re-gia? Write the reactions inv...

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  15. Draw the structures of chloric acid & per chloric acid. Which is more ...

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  16. Why the noble gases have very low boiling points?

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  17. Why xenon forms compound?

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  18. Arrange the following in the order of property indicated: NH3, PH3, As...

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  19. What is the hybridization of lodine in IF7? Draw Its structure & name ...

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  20. List two uses each from neon & argon gases.

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