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Nitrogen exists as diatomic molecule and...

Nitrogen exists as diatomic molecule and phosphorus as `P_(4)`. Why?

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Nitrogen because of its small size and high electronegativity forms `ppi-ppi` moltiple bonds. Therefore, it exists as diatomic molecule, `N-=N`. Phosphorous, due to to its large size and low electronegativity cannot form `ppi-ppi` multiple bonds with itself. Rather, it prefers to form single bonds and exists as tetrahedral molecules.
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CENGAGE CHEMISTRY ENGLISH-APPENDIX INORGANIC VOLUME 2-Exercises
  1. Why does R(3)P = O exist but R(3)N = O does not (R = alkyl group)?

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  2. Explain why NH(3) is basic while BiH3 is only feebly basic.

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

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  4. Write main differences between the properties of white phosphorus and ...

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  5. Why does nitrogen show catenation properties less than phosphorus ?

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

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  7. Can PCl(5) act as an oxidising as well as a reducing agent? Justify.

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

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

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  10. Knowing the electron gain enthalpy values for O to O^(-) and O to O^(...

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  11. Which aerosols deplete ozone?

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

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

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  14. Why are halogens strong oxidising agents?

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

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  16. Although chlorine and oxygen have nearly same electronegativity yet on...

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  17. Write two uses of ClO(2).

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  18. Why are halogens coloured?

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  19. Write the reactions of F(2) and Cl(2) with water.

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  20. How can you prepare Cl(2) from HCl and HCl from Cl(2)? Write reactions...

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