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MHT CET202520 Apr 2025Evening ShiftChemistryChemical Bonding and Molecular StructureActual

Select the incorrect statement about N ₂ molecule.

Options

  1. AIt is more stable than O ₂ molecule.
  2. BIt consists more electrons in bonding molecular orbitals than O ₂
  3. CIts bond order is 3
  4. DIt is dimagnetic

Correct answer

B. It consists more electrons in bonding molecular orbitals than O ₂

Step-by-step solution

Using Molecular Orbital Theory, we evaluate each statement for N ₂ and O ₂ . For N ₂ (14 electrons), the configuration is ( _ 1s )^2 ( _ 1s ^*)^2 ( _ 2s )^2 ( _ 2s ^*)^2 ( _ 2p_x )^2 ( _ 2p_y )^2 ( _ 2p_z )^2 , with bond order 1 2 (10 - 4) = 3 and diamagnetic behavior. For O ₂ (16 electrons), the configuration is ( _ 1s )^2 ( _ 1s ^*)^2 ( _ 2s )^2 ( _ 2s ^*)^2 ( _ 2p_z )^2 ( _ 2p_x )^2 ( _ 2p_y )^2 ( _ 2p_x ^*)^1 ( _ 2p_y ^*)^1 , with bond order 1 2 (10 - 6) = 2 and paramagnetic behavior. Statement A : N ₂ has high

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