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Why is the reactivity of nitrogen differ...

Why is the reactivity of nitrogen different from that of phosphorus ?

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Molecular nitrogen exists as a diatomic molecule `(N_(2))` in which the two nitrogen atoms are linked to each other by triple bond (N=N). It is a gas at room temperature. Multiple bonding is not possible in case of phosphorus due to its large size. It exists as `P_(4)` molecule (solid) in which P atoms are linked to one another by single covalent bonds. Because of greater bond dissociation enthalpy `(946 " kJ mol"^(-1))` of N=N bond, molecular nitrogen is very less reactive as compared to molecular phosphorus.
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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -N.C.E.R.T. Exercise
  1. Discuss the general characteristics of Group 15 elements with referenc...

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  2. Why is the reactivity of nitrogen different from that of phosphorus ?

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

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  4. Why does NH(3) form hydrogen bonding while PH(3) does not ?

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

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  6. How is ammonia manufactured industrially?

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  7. Illustrate, how copper gives different products on reaction with HNO3.

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

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  9. The HNH angle value is higher than those of HPH, HAsH and HSbH angles ...

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

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  11. Explain why is NH(3) basic while PH(3)is feebly basic in nature.

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  12. Nitrogen exists as diatomic molecule (N(2)) while phosphorus as tetra-...

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

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

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  15. Give one disproportionation reaction of phosphorus acid (H(3)PO(3)).

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

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

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

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

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  20. Which aerosols deplete ozone ?

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