Question

Out of \[\ce{KMnO4}\] and \[\ce{K2MnO4}\], which one is paramagnetic and why?

Answer 1

Potassium manganate \[\ce{(K2MnO4)}\] exhibits paramagnetic properties due to unpaired electrons in the d orbitals of the manganese \[\ce{(Mn)}\] atom. In \[\ce{K2MnO4}\], manganese is in a +6 oxidation state with one unpaired electron in its d-orbitals, resulting in paramagnetic behaviour.