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Account for the following: Acidic charac...

Account for the following: Acidic character increases from HF to HI.

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. What are interhalogen compounds ? Give example.

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  2. What are noble gases? Why are they named so? Account for the fact that...

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  3. Account for the following: Acidic character increases from HF to HI.

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  4. Account for the following: There is large difference between the melti...

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  5. Account for the following: Nitrogen does not form pentahalide.

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  6. Draw the structure of the following : CIF3

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  7. Draw the structures of the following molecule : XeF4

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  8. Which allotrope of phosphorus is more reactive and why ?

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  9. How are the supersonic jet aeroplanes responsible for the depletion of...

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  10. F2 has lower bond dissociation enthalpy than Cl2. Why?

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  11. Which noble gas is used in filling balloons for meteorological observa...

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  12. Complete the reaction :XeF2+ PF5 rarr ?

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  13. Give the structure and basicity of H3PO4.

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  14. SF6 is known but SCl6 is not known. Explain.

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  15. Give the shape of IF7.

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  16. Why nitric acid acts as an oxidising agent ? How it oxidises: Carbon t...

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  17. Why nitric acid acts as an oxididing agent? How it oxidises: Sulphur t...

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  18. Give the structure of XeOF4 and state of hybridization of Xe in it.

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  19. Give the structure and basicity of H3PO4.

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  20. SO3 has zero dipole moment. Why ?

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