Among the species given below, the total number of diamagnetic species is ___. H   a t o m ,   N O…

Among the species given below, the total number of diamagnetic species is ___.
H atom, NO2 monomer, O2- (superoxide), dimeric sulphur in vapour phase, Mn3O4, NH42[FeCl4], NH42[NiCl4], K2MnO4, K2CrO4

Solution

H - atom = paramagnetic
NO2=   odd unpaired electron species paramagnetic
O2- (superocide) = One unpaired electrons in π* M.O. paramagnetic
S2 (in vapour phase) = same as O2 , two unpaired e-s are present in π* M.O. paramagnetic



Asked in: JEE Advanced 2018 (Paper 1)

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