According to MO theory the bond orders for , CO and respectively, are

Question

According to MO theory the bond orders for , CO and  respectively, are

Canvas Classes · Accepted Answer

Step 1 — Bond order of  (peroxide ion, 18e⁻):
- MO: 
- Bonding e⁻ = 8, Antibonding e⁻ = 6 (from valence MOs)

Step 2 — Bond order of CO (10e⁻):
- Isoelectronic with

Step 3 — Bond order of  (10e⁻):
- Isoelectronic with CO and

Summary:  = 1, CO = 3,  = 3

Answer: Option (1) — 1, 3 and 3

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