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Why does NH(3) form hydrogen bond but PH...

Why does `NH_(3)` form hydrogen bond but `PH_(3)` does not?

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Nitrogen is more electronegative than phosphorous. Hence `N-H` is highly polar bond and `NH_3` undergoes intermolecular hydrogen bonding. On the other hand, polarity of `P-H` bind is very less and hence `PH_3` molecule does not form hydrogen bonds.
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CENGAGE CHEMISTRY ENGLISH-APPENDIX INORGANIC VOLUME 2-Exercises
  1. Why does the reactivity of nitrogen differ from phosphorus?

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  2. Discuss the trends in chemical reactivity of group 15 elements.

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  3. Why does NH(3) form hydrogen bond but PH(3) does not?

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  4. How is nitrogen prepared in the laboratory? Write the chemical equatio...

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  5. State three different chemical compounds other than acids manufactured...

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  6. Pb + conc. HNO(3) gives

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  7. Give the resonating structures of NO(2) and N(2)O(5).

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  8. The HNH angle value is higher than HPH, HAsH and HSbH angles. Why? ...

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  9. Why does R(3)P = O exist but R(3)N = O does not (R = alkyl group)?

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

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

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

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

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

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

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

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

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

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  19. Which aerosols deplete ozone?

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

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