07. The p-BLOCK ELEMENTS (XII)
189226
Among \(K{O_2},\) \(NO_2^ - ,\) \(Ba{O_2}\) and \(NO_2^ + \) unpaired electron is present in
1 \(NO_2^ + \) and \(Ba{O_2}\)
2 \(K{O_2}\) and \(Ba{O_2}\)
3 \(K{O_2}\) only
4 \(Ba{O_2}\) only
Explanation:
(c) \(K{O_2}\) because in \(O_2^ - \) (superoxide ion) One unpaired electron is present in the antibonding orbital.