Exemplar Problems

Problem 18 : Explain the concept of bond order in molecular orbital theory. Calculate the bond order for nitrogen (N₂) and oxygen (O₂) molecules.
Solution :

Bond order in molecular orbital theory is given by: Bond Order = (Number of Bonding Electrons - Number of Antibonding Electrons) / 2

  • For N₂: Bond Order (N₂) = 3
  • For O₂: Bond Order (O₂) = 2


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