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Why does the reactivity of nitrogen diff...

Why does the reactivity of nitrogen differ from phosphorus ?

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Nitrogen exists as a diatomic molecule `(N -= N)`. Due to the presence of a triple bond between the two N-atoms, the bond dissociation energy is quite large (941.4 kJ `"mol"^(-1)`). As a result, nitrogen is inert and unreactive in its elemental state.
In contrast, phosphorus exists as a tetratomic molecule `(P_4)`. Since the P - P single bond is much weaker (213 kJ `"mol"^(-1)`) than `N-=N` triple bond. Therefore, phosphorus is much more reactive than nitrogen.
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U-LIKE SERIES-THE P-BLOCK ELEMENTS -NCERT TEXTBOOK EXERCISES
  1. Why does the reactivity of nitrogen differ from phosphorus ?

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  2. Why does NH4 form hydrogen bond but PH3 does not ?

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  3. How is nitrogen prepared in the laboratory ? Write the chemical equati...

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  4. How is ammonia manufactured industrially?

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  5. Illustrate how copper metal can give different products on reaction wi...

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  6. Give the resonating structures of NO2 and N2O5 .

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  7. The HNH angle value is higher than HPH, HAsH and HsbH angles. Why ?

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  8. Why does R3P = exist but R3N= does not (R = alkyl group) ?

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  9. Explain, why NH3 is basic while BiH3 is only feebly basic.

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  10. Nitrogen exists as diatomic molecule and phosphorus as P4.

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

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

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  13. Give the disproportionation reaction of H3PO3.

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  14. Can PCl5 act as an oxidising as well as a reducing agent ? Justify.

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

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

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  17. Knowing the electron gain enthalpy values for O to O^(-) and O to O^(2...

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  18. Which aerosols deplete ozone ?

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  19. Describe the manufacture of H2SO4 by contact process

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  20. How is SO2 an air pollutant ?

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