Which of the following complex ions is not di | vedclass

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(B) To determine if a complex is diamagnetic,we check for the presence of unpaired electrons in the central metal ion.$A$. In $[Ti(en)_{2}(NH_{3})_{2}

Vedclass · Accepted Answer

$[Cr(NH_{3})_{6}]^{3+}$

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(B) To determine if a complex is diamagnetic,we check for the presence of unpaired electrons in the central metal ion.$A$. In $[Ti(en)_{2}(NH_{3})_{2}]^{4+}$,$Ti$ is in the $+4$ oxidation state ($d^0$ configuration). It has no unpaired electrons,so it is diamagnetic.$B$. In $[Cr(NH_{3})_{6}]^{3+}$,$Cr$ is in the $+3$ oxidation state ($d^3$ configuration). The $d$-orbitals have $3$ unpaired electrons $(t_{2g}^3)$,making it paramagnetic.$C$. In $[Zn(NH_{3})_{6}]^{2+}$,$Zn$ is in the $+2$ oxidation state ($d^{10}$ configuration). It has no unpaired electrons,so it is diamagnetic.$D$. In $[Sc(H_{2}O)_{3}(NH_{3})_{3}]^{3+}$,$Sc$ is in the $+3$ oxidation state ($d^0$ configuration). It has no unpaired electrons,so it is diamagnetic.Therefore,$[Cr(NH_{3})_{6}]^{3+}$ is not diamagnetic.

Complex Ion	Label
$[Mn(CN)_6]^{3-}$	$A$
$[Fe(CN)_6]^{3-}$	$B$
$[CoF_6]^{3-}$	$C$
$[Co(C_2O_4)_3]^{3-}$	$D$

Which of the following complex ions is not diamagnetic?

Similar Questions

Consider the following isomers of $[Cr(NH_3)_2 Cl_4]^-$ and identify the correct classification of these isomers as $cis$ or $trans$.

The correct order of the calculated spin-only magnetic moments of complexes $A$ to $D$ is:
$A$. $Ni(CO)_{4}$
$B$. $[Ni(H_{2}O)_{6}]Cl_{2}$
$C$. $Na_{2}[Ni(CN)_{4}]$
$D$. $PdCl_{2}(PPh_{3})_{2}$

Draw the structures of optical isomers of:
$(i)$ $[Cr(C_2O_4)_3]^{3-}$
$(ii)$ $[PtCl_2(en)_2]^{2+}$
$(iii)$ $[Cr(NH_3)_2Cl_2(en)]^{+}$

Observe the following complex ions:
Complex Ion Label
$[Mn(CN)_6]^{3-}$ $A$
$[Fe(CN)_6]^{3-}$ $B$
$[CoF_6]^{3-}$ $C$
$[Co(C_2O_4)_3]^{3-}$ $D$

Identify the option in which the unpaired electrons in the complex ions are in correct increasing order.

The magnetic moments of the complexes given below are in the order:
$I. [Ni(CO)_4]$
$II. [Mn(CN)_6]^{4-}$
$III. [Cr(NH_3)_6]^{3+}$
$IV. [CoF_6]^{3-}$

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