Among the species given below,the total numbe | vedclass

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(A) $1$. $H$ atom: $1s^1$ (Paramagnetic)$2$. $NO_2$ monomer: Odd electron (Paramagnetic)$3$. $O_2^{-}$ (superoxide): $13$ electrons (Paramagnetic)$4$.

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$1$

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(A) $1$. $H$ atom: $1s^1$ (Paramagnetic)$2$. $NO_2$ monomer: Odd electron (Paramagnetic)$3$. $O_2^{-}$ (superoxide): $13$ electrons (Paramagnetic)$4$. $S_2$ (vapour): Similar to $O_2$,has two unpaired electrons in $\pi^*$ orbitals (Paramagnetic)$5$. $Mn_3O_4$: Mixed oxide of $MnO \cdot Mn_2O_3$,contains $Mn^{2+}$ and $Mn^{3+}$ (Paramagnetic)$6$. $(NH_4)_2[FeCl_4]$: $Fe^{2+}$ is $d^6$ (Paramagnetic)$7$. $(NH_4)_2[NiCl_4]$: $Ni^{2+}$ is $d^8$ (Paramagnetic)$8$. $K_2MnO_4$: $Mn^{6+}$ is $d^1$ (Paramagnetic)$9$. $K_2CrO_4$: $Cr^{6+}$ is $d^0$ (Diamagnetic)Only $K_2CrO_4$ is diamagnetic. The total number of diamagnetic species is $1$.

List-$I$ (Complex)	List-$II$ (Spin only magnetic moment in $B$.$M$.)
$A$. $[Cr(NH_3)_6]^{3+}$	$I$. $4.90$
$B$. $[NiCl_4]^{2-}$	$II$. $3.87$
$C$. $[CoF_6]^{3-}$	$III$. $0.0$
$D$. $[Ni(CN)_4]^{2-}$	$IV$. $2.83$

Among the species given below,the total number of diamagnetic species is. . . . . $H$ atom,$NO_2$ monomer,$O_2^{-}$ (superoxide),dimeric sulphur in vapour phase,$Mn_3O_4$,$(NH_4)_2[FeCl_4]$,$(NH_4)_2[NiCl_4]$,$K_2MnO_4$,$K_2CrO_4$

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