Q. During change of O₂ to O₂⁻ ion, the electron adds on which one of the following orbitals?
A) π* orbital
B) π orbital
C) σ* orbital
D) σ orbital
Explanation
[Solution from source] In O₂ the two π*2p orbitals each hold one electron, and they are the lowest vacant-capacity orbitals, so the extra electron of O₂⁻ enters a π* orbital. The bonding π and σ orbitals are already full. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.