JEE Main2014ChemistryChemical Bonding and Molecular StructureActual
Which one of the following properties is not shown by NO ?
Options
- AIt is diamagnetic in gaseous state
- BIt is a neutral oxide
- CIt combines with oxygen to form nitrogen dioxide
- DIt's bond order is 2.5
Correct answer
A. It is diamagnetic in gaseous state
Step-by-step solution
As per MOT, electronic configuration of NO is σ 1 s 2 < σ * 1 s 2 < σ 2 s 2 < σ * 2 s 2 < σ 2 p z 2 < π 2 p x 2 = π 2 p y 2 < π * 2 p x 1 = π * 2 p y 0 It is paramagnetic due to π 2 * py 1 (unpaired electron) Bond order of NO ( i . e . O 2 + ) = 10 − 5 2 = 2.5