Question

with the help of M. O theory predict which of the following species is diamagnetic H2, O2, O2-
ans.. me please it's very urgent ​

Answer 1

In H2 molecule

Total no of electrons= 2×2=4e

so,according to MOT there is no unpaired electrons present

SO, H2 MOLECULE IS DIAMAGNETIC IN NATURE

In O2 molecule

Total no of electrons =2×8= 16

So there will be unpaired electrons present

SO , O2 IS PARAMAGNETIC IN NATURE

In O2- molecule

Total no of electrons= 2×8=16+1=17

There will be also unpaired electrons

SO, O2- IS PARAMAGNETIC IN NATURE