JEE Main2007ChemistryChemical Bonding and Molecular StructureActual
Which of the following species exhibits the diamagnetic behaviour?
Options
- AO ₂²⁻
- BO ₂⁺
- CO ₂
- DNO
Correct answer
A. O ₂²⁻
Step-by-step solution
The correct option is O ₂²⁻ This species has 18 ~e ⁻ , which are filled in such a way that all molecular orbitals are fully filled, so diamagnetic. 1 s^2 ^* 1 s^2, 2 s^2 ^* 2 s^2, 2 p_z^2, 2 p_x^2= 2 p_y^2, ^* 2 p_x^2= ^* 2 p_y^2 Hence, (A) is correct.