Question

Paramagnetic behaviour of KO2 is due to the fact that unpaired electron is present in
(1) T2p molecular orbital
(2) T*2p molecular orbital
(3) o*2p molecular orbital
(4) o2p molecular orbital​

Answer 1

Answer:

T*pt molecular orbital

@Bblegend.....

Answer 2

Paramagnetic behaviour of KO2 is due to the fact that unpaired electron is present in T*2p molecular orbital.  

Option: (2)

Explanation:  

• If we consider the compound potassium superoxide there are a total of 13 electron in the compound.  

• As a result all the electrons cannot be present in pairs. There is an unpaired electron which is present in the T*2p molecular orbital.  

• The distribution of electrons in the different orbital of Potassium superoxide is

         (sigma)s2

          (sigma*)s2

          (sigma)p4

          (pi)p3

          (pi*)p3.  

• Hence due to this unpaired 13th electron the compound potassium superoxide has a permanent paramagnetic behaviour.