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Give reasons for the following: Elements...

Give reasons for the following: Elements of group 16 are more electronegative than those of group 15.

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. Give reasons for the following: Chlorine has higher electron gain enth...

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  2. Give reasons for the following: Noble gases have very little tendency ...

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  3. Give reasons for the following: Elements of group 16 are more electron...

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  4. Though nitrogen exhibits + 5 oxidation state, it does not form penta-h...

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  5. Give reasons for the following: Sulphur vapour is paramagnetic.

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  6. Give reasons for the following: Moist chlorine is powerful bleaching a...

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  7. Describ chemistry of manufacture of ammonia by Haber's process and dis...

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  8. What are interhalogen compounds ? Give example.

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

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

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

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

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  13. Draw the structure of the following : CIF3

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  14. Draw the structures of the following molecule : XeF4

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

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

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

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

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  19. Complete the reaction :XeF2+ PF5 rarr ?

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  20. Give the structure and basicity of H3PO4.

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