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Write main differences between the prope...

Write main differences between the properties of white phospghorus and red phosphorus.

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Write phosphorus and Red phosphorus.

White phosphorus is

White phosphorus has.

The structure of white phosphorus is

Draw the structures of the following molecules : (i) XeOF_(4) (ii) H_(2)SO_(4) (b) Write the structurel difference between white phosphorus and red phosphorus .

White phosphorus is stored in

White phosphorus contains

White phosphorus contains

PRADEEP-P-BLOCK ELEMENTS -NCERT QUESTIONS AND EXERCISES WITH ANSWERS
  1. Explain why NH(3) is basic while BiH(3) is only feebly basic ?

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  2. Nitrogen exists as diatomic molecule and phosphorus as P(4). Why ?

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  3. Write main differences between the properties of white phospghorus and...

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  4. Why does nitrogen show catenation properties less than prosphorus.

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  5. Give the disproportionation reaction of H(3)PO(3).

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  6. Can PCl(5) act as oxidising as well as reducing agent ? Justify.

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  7. Justify the placement of O, S, Se, Te and Po in the same group of the ...

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  8. Why is dioxygen a gas but sulphur a solid?

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  9. Knowing the electron gain enthalpy values for O rarr O^(Ө) and O rarr ...

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  10. Which aerosols deplete ozone ?

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  11. Describe the manufacture of H(2)SO(4) by contact process?

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  12. How is SO(2) an air pollutant ?

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  13. Why are halogens strong oxidising agents ?

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  14. Explain why fluorine forms only one oxoacid, HOF.

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  15. Explain why in spite of nearly the same electronegativity, oxygen form...

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  16. Write two uses of ClO(2).

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  17. Why are halogens coloured?

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  18. Write the reaction of F(2) and Cl(2) with water.

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  19. How can you prepare Cl2 from HCl and HCI from Cl2? Write reactions onl...

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  20. What inspired N. Bartlett for carrying out reaction between Xe and PtF...

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