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Answer the following: why do noble gases...

Answer the following: why do noble gases have comparatively large atomic sizes?

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ASSAM ACADEMIC CENTRE-The p-Block Elements-Example
  1. CIF3 exists but FCI3 does not why?

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

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  3. Answer the following: why do noble gases have comparatively large atom...

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  4. Answer the following: why is helium-oxygen mixture preferred over air ...

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  5. Account for the following: Fluorine forms the largest number of interh...

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  6. Answer the following: why are PCL5 more covalent than PCl3?

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

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  8. Given reasons: concentrated nitric acid renders aluminium passive.

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  9. PH3 has lower boiling point than NH3. Why?

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  10. Give reasons: ozone is more reactive than oxygen why?

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

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  12. Complete the following chemical equations: NaOH(aq) + Cl2(g) rarr (Hot...

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

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  14. Which one has higher electron gain enthalpy with negative sign, sulphu...

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  15. How will you account for the following: NF3 is an exothermic compound ...

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  16. How would you account for the following: CIF3 molecule has a T-shaped ...

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  17. Complete the following reactions: P4 + SO2 CI2 rarr

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  18. Complete the following equations: XeF4 + H2O rarr

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  19. Given reasons: draw the structure of XeOF4.

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  20. Ammonia is a good complexing agent. Why?

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