Addition of an electron to an antibonding molecular orbital

Addition of an electron to an antibonding molecular orbital
  1. increases bond order
  2. decreases bond order
  3. stabilises the system
  4. decreases the inter-nuclear distance

Solution

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.

Asked in: AP EAMCET 2021 (24 Aug Shift 1)

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