The total number of unpaired electrons presen | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) For $[Co(NH_3)_6]Cl_2$:$Co$ is in $+2$ oxidation state. The electronic configuration of $Co^{2+}$ is $[Ar] 3d^7$.Since $NH_3$ is a weak field liga

Vedclass · Accepted Answer

$3$

Vedclass · Answer

(B) For $[Co(NH_3)_6]Cl_2$:$Co$ is in $+2$ oxidation state. The electronic configuration of $Co^{2+}$ is $[Ar] 3d^7$.Since $NH_3$ is a weak field ligand for $Co^{2+}$,no pairing occurs.The configuration is $t_{2g}^5 e_g^2$,resulting in $3$ unpaired electrons.For $[Co(NH_3)_6]Cl_3$:$Co$ is in $+3$ oxidation state. The electronic configuration of $Co^{3+}$ is $[Ar] 3d^6$.Since $NH_3$ is a strong field ligand for $Co^{3+}$,pairing occurs.The configuration is $t_{2g}^6 e_g^0$,resulting in $0$ unpaired electrons.Total number of unpaired electrons = $3 + 0 = 3$.

Coordination number and type of hybridisation	Distribution of hybrid orbitals in space
$a. 4, sp^3$	$i. \text{trigonal bipyramidal}$
$b. 4, dsp^2$	$ii. \text{octahedral}$
$c. 5, sp^3d$	$iii. \text{tetrahedral}$
$d. 6, d^2sp^3$	$iv. \text{square planar}$

Column-$I$ Complex	Column-$II$ Structure / Geometry / Property
$A$. $[Ni(CN)_4]^{2-}$	$I$. Tetrahedral / Paramagnetic
$B$. $[Ni(CO)_4]$	$II$. Tetrahedral / Diamagnetic
$C$. $[NiCl_4]^{2-}$	$III$. Square planar / Diamagnetic

The total number of unpaired electrons present in $[Co(NH_3)_6]Cl_2$ and $[Co(NH_3)_6]Cl_3$ is $......$

Similar Questions

If $Hund's$ rule is violated,then select the $CORRECT$ statement regarding $[Ni(NH_3)_6]^{2+}$:

The structure of $[Cu(H_2O)_4]^{2+}$ ion is

Which of the following complexes exhibits outer orbital hybridization?

Match the following:

Column-$I$ Complex Column-$II$ Structure / Geometry / Property

$A$. $[Ni(CN)_4]^{2-}$ $I$. Tetrahedral / Paramagnetic

$B$. $[Ni(CO)_4]$ $II$. Tetrahedral / Diamagnetic

$C$. $[NiCl_4]^{2-}$ $III$. Square planar / Diamagnetic

The correct match is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module