JEE Main2013ChemistryChemical Bonding and Molecular StructureActual
Which one of the following molecules is expected to exhibit paramagnetic behaviour?
Options
- AO 2
- BO 2 -2
- CC 2
- DN 2
Correct answer
A. O 2
Step-by-step solution
M.O. Electronic configuration. O 2 = σ 1 s 2 < σ * 1 s 2 < σ 2 s 2 < σ * 2 s 2 < σ 2 p z 2 < π 2 p y 2 = π 2 p x 2 < π * 2 p y 1 = π * 2 p x 1 Paramagnetic O 2 - 2 = σ 1 s 2 < σ * 1 s 2 < σ 2 s 2 < σ * 2 s 2 < σ 2 p z 2 < π 2 p y 2 = π 2 p 2 x < π * 2 p y 2 = π * 2 p x 2 Diamagnetic C 2 = σ 1 s 2 < σ * 1 s 2 < σ 2 s 2 < σ * 2 s 2 < π 2 p x 2 = π 2 p y 2 Diamagn