Q. Among the species given below, the total number of diamagnetic species is ___.
$H$ atom, $N O_{2}$ monomer, $O_{2}^{-}$ (superoxide), dimeric sulphur in vapour phase,
$M n_{3} O_{4}, (N H_{4})_{2} [F e C l_{4}], (N H_{4})_{2} [N i C l_{4}], K_{2} M n O_{4}, K_{2} C r O_{4}$

2120 172 JEE AdvancedJEE Advanced 2018 Report Error

Answer: 1

Solution:

Q. Among the species given below, the total number of diamagnetic species is ___. H atom, NO2​ monomer, O2−​ (superoxide), dimeric sulphur in vapour phase, Mn3​O4​,(NH4​)2​[FeCl4​],(NH4​)2​[NiCl4​],K2​MnO4​,K2​CrO4​