Which is a pair of paramagnetic species?
Correct answer: A. KO2, NO2
- A. KO2, NO2
- B. K2O2, KO3
- C. K2O,NO2
- D. NO2, N2O2
Explanation
In KO2, O2- → (superoxide) has one unpaired electron and NO2 also has one unpaired electron. Thus,KO2 and NO2 are paramagnetic. Simple trick to identify Quickly:If sum of electrons in a specie is even then it is diamagnetic(except O2 which is paramagnetic). If sum of electrons in a specie is odd then it is paramagnetic.
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