Which of the following complex ions is not ex | vedclass

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

Question

(B) complex ion absorbs visible light if it contains unpaired electrons,which allow for $d-d$ transitions.$1$. $[Ni(H_2O)_6]^{2+}$: $Ni^{2+}$ is $3d^8

Vedclass · Accepted Answer

$[Ni(CN)_4]^{2-}$

Vedclass · Answer

(B) complex ion absorbs visible light if it contains unpaired electrons,which allow for $d-d$ transitions.$1$. $[Ni(H_2O)_6]^{2+}$: $Ni^{2+}$ is $3d^8$,which has $2$ unpaired electrons.$2$. $[Ni(CN)_4]^{2-}$: $Ni^{2+}$ is $3d^8$. $CN^-$ is a strong field ligand,causing pairing of electrons to form a $dsp^2$ square planar complex with $0$ unpaired electrons.$3$. $[Cr(NH_3)_6]^{3+}$: $Cr^{3+}$ is $3d^3$,which has $3$ unpaired electrons.$4$. $[Fe(H_2O)_6]^{2+}$: $Fe^{2+}$ is $3d^6$,which has $4$ unpaired electrons.Since $[Ni(CN)_4]^{2-}$ has no unpaired electrons,it does not undergo $d-d$ transitions and is not expected to absorb visible light.

Which of the following complex ions is not expected to absorb visible light?

Similar Questions

Select the incorrect statement.

Observe the following statements:
$I. f(x) = a x^{41} + b x^{-40} \Rightarrow \frac{f^{\prime \prime}(x)}{f(x)} = 1640 x^{-2}$
$II. \frac{d}{d x} \tan ^{-1}\left(\frac{2 x}{1-x^2}\right) = \frac{1}{1+x^2}$
Which of the following is correct?

Which of the following represents the complexity of cellular organization?

If $\cos A = \frac{3}{4}$,then $32 \sin \left(\frac{A}{2}\right) \sin \left(\frac{5A}{2}\right) = $

The image of the point $(4, -13)$ with respect to the line $5x + y + 6 = 0$ is

Vedclass Test Series

Exam Paper Generator

Online Exam Module