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Maximum covalency of nitrogen is four. E...

Maximum covalency of nitrogen is four. Explain. 

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Nitrogen has no valence d-orbitals. Excitation of 2s electron to 3s orbital is difficult. Hence nitrogen does not form five bonds. `N(Z=7):[He] 2s^(2)2p^(1)2p^(1) 2p^(1)`. Nitrogen can form three covalent bonds and one dative bond as in `NH_(4)^(+)` or in `C_(6)H_(5)NH_(3)^(+)` ions. Its maximum covalency is four.
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Knowledge Check

  • The maximum covalency of nitrogen is

    A
    2
    B
    3
    C
    4
    D
    5

  • The maximum covalency of nitrogen is

    A
    2
    B
    3
    C
    4
    D
    5

  • (A) The maximum covalncy of nitrogen is 4 (R ) Nitrogen can no vacant d-orbitals in its valence shell

    A
    Both (A) and (R ) are true and (R ) is the correct explanation of (A)
    B
    Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
    C
    (A) is true but (R ) is false
    D
    Both (A) and (R ) are false

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