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Discuss the general characteristics of G...

Discuss the general characteristics of Group 15 elements with reference to their electronic configuration, oxidation state, atomic size, ionisation enthalpy and electronegativity.

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Knowledge Check

  • Which of the following electronic configuration of an atom has the lowest ionisation enthalpy?

    A
    `1s^2,2s^22p^3`
    B
    `1s^22s^22p^6,3s^1`
    C
    `1s^2,2s^22p^6`
    D
    `1s^2,2s^22p^5`

  • With which of the following electronic configuration an atom has the lowest ionisation enthalpy ?

    A
    `1 s^(2) 2 s^(2) 2 p^(6)`
    B
    `1 s^(2) 2 s^(2) 2 p^(5)`
    C
    `1 s^(2) 2 s^(2) 2p^(3)`
    D
    `1 s^(2) 2 s ^(2) 2 p^(6) 3 s^(1)`

  • The electronic configuration of most electronegative element is

    A
    `1s^2,2s^22p^5`
    B
    `1s^2,2s^22p^4,3s^1`
    C
    `1s^2,2s^2 2p^5,3s^1 3p^1`
    D
    `1s^2,2s^2 2p^6,3s^2 3p^5`
    • 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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