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Question: Answered & Verified by Expert
Addition of an electron to an antibonding molecular orbital
ChemistryChemical Bonding and Molecular StructureAP EAMCETAP EAMCET 2021 (24 Aug Shift 1)
Options:
  • A increases bond order
  • B decreases bond order
  • C stabilises the system
  • D decreases the inter-nuclear distance
Solution:
2422 Upvotes Verified Answer
The correct answer is: decreases bond order
Bond order = Number of bonding electrons
$\frac{- \text { Number of antibonding electrons }}{2}$
Addition of an electron to an antibonding molecular orbital results in overall decrease in bond order.

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