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KCET2016Chemistryp Block Elements (Group 15, 16, 17 & 18)

Which is true regarding nitrogen ?

Options

  1. ALess electronegative
  2. BHas low ionisation enthalpy
  3. Cd-orbitals are available
  4. DAbility to form ( p - p ) bonds with itself

Correct answer

D. Ability to form ( p - p ) bonds with itself

Step-by-step solution

Electronic configuration for ( N (Z=7) ) is ( 1 s² 2 s² 2 p³ ), so, it does not have d-orbitals. Due to completely half-filled p- orbital, its ionization enthalpy is high, and nitrogen is third most electronegative element in periodic table. Nitrogen can form pII - pII bonds to itself.

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