Which of the following compounds is not colou | vedclass

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

Question

(B) compound is coloured if it has unpaired electrons in its $d$-orbitals,allowing for $d-d$ transitions.In $Na_2[CuCl_4]$,$Cu^{2+}$ has a $3d^9$ conf

Vedclass · Accepted Answer

$Na_2[CdCl_4]$

Vedclass · Answer

(B) compound is coloured if it has unpaired electrons in its $d$-orbitals,allowing for $d-d$ transitions.In $Na_2[CuCl_4]$,$Cu^{2+}$ has a $3d^9$ configuration with $1$ unpaired electron,so it is coloured.In $Na_2[CdCl_4]$,$Cd^{2+}$ has a $4d^{10}$ configuration. Since all $d$-orbitals are completely filled,no $d-d$ transition is possible,making it colourless.In $K_4[Fe(CN)_6]$,$Fe^{2+}$ is $3d^6$ (low spin),which is diamagnetic but often shows colour due to charge transfer,however,$Cd^{2+}$ complexes are characteristically colourless due to the $d^{10}$ configuration.In $K_3[Fe(CN)_6]$,$Fe^{3+}$ is $3d^5$,which is coloured.

Which of the following compounds is not coloured?

Similar Questions

The difference in the number of unpaired electrons of a metal ion in its high-spin and low-spin octahedral complexes is $2$. The metal ion is

If $n$ is the number of unpaired electrons,then the magnetic moment $(B.M.)$ of a transition metal/ion is given by:

The given complexes are .......

Which complex possesses a facial $(fac)$ isomer?

Which of the following exhibit ionization isomerism?
$I) [Cr(NH_3)_4Cl_2]Cl$
$II) [Ti(H_2O)_5Cl](NO_3)_2$
$III) [Pt(en)(NH_3)Cl]NO_3$
$IV) [Co(NH_3)_4(NO_3)_2]NO_3$

Vedclass Test Series

Exam Paper Generator

Online Exam Module