Manipal MET2012ChemistryCoordination Compounds
Which of the following is diamagnetic?
Options
- AH ₂
- BH ₂⁻
- CH ₂⁺
- DHe ₂⁺
Correct answer
A. H ₂
Step-by-step solution
Diamagnetic species have all electrons paired, whereas paramagnetic species have unpaired electrons. H ₂= 1 ~s ^2 No. of unpaired electron =0 diamagnetic H ₂⁻= 1 s, ^* 1 s^1 No. of unpaired electron =1 paramagnetic H ₂⁻= 1 s^1 No. of unpaired electron =1 paramagnetic He ₂⁺= 1 s^2, ^* 1 s^1 No. of unpaired electron =1 paramagnetic