Among KO2, AlO−2, BaO2 and NO+2 unpaired electron is present in

Q. Among KO₂, AlO⁻₂, BaO₂ and NO⁺₂ unpaired electron is present in

1. NO⁺₂ and BaO₂
2. KO₂ and AIO⁻₂
3. KG₂ only
4. BaO₂ only

Answer: KG₂ only