Question

Which of the following species have maximum number of unpaired electrons ​

Answer 1

Answer:

Ď will have Max unpaired electrons.

Answer 2

Answer:

The Correct option is (b)$O^+_2$

Explanation:

option (a) $O_2$ contains 2 unpaired electrons in π^*2px and π^*2py molecular orbitals, thus it shows paramagnetic nature. Hence, it is Incorrect.

Option (b) $O^+_2$ contains 3 unpaired electrons in their molecular orbitals, thus it shows paramagnetic nature. Hence, it is correct.

Option (c) $O^-_2$ contains only a single unpaired electron in their molecular orbitals and also shows paramagnetic in nature. Hence, it is Incorrect.

Option (d) $O^-^2_2$ does not contain any unpaired electrons in their molecular orbitals and it also shows diamagnetic in nature. hence, it is Incorrect.