In which of the following pairs are both the | vedclass

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

Question

(B) Ions are coloured if they possess unpaired electrons in their $d$-orbitals due to $d-d$ transitions.$Sc^{3+} \rightarrow [Ar] 3d^{0}$ (No unpaired

Vedclass · Accepted Answer

$Ni^{2+}, Ti^{3+}$

Vedclass · Answer

(B) Ions are coloured if they possess unpaired electrons in their $d$-orbitals due to $d-d$ transitions.$Sc^{3+} \rightarrow [Ar] 3d^{0}$ (No unpaired electrons,colourless)$Ti^{3+} \rightarrow [Ar] 3d^{1}$ (One unpaired electron,coloured)$Ni^{2+} \rightarrow [Ar] 3d^{8}$ (Two unpaired electrons,coloured)$Cu^{+} \rightarrow [Ar] 3d^{10}$ (No unpaired electrons,colourless)$Co^{2+} \rightarrow [Ar] 3d^{7}$ (Three unpaired electrons,coloured)Comparing the options:$A$: $Ni^{2+}$ (coloured),$Cu^{+}$ (colourless)$B$: $Ni^{2+}$ (coloured),$Ti^{3+}$ (coloured)$C$: $Sc^{3+}$ (colourless),$Ti^{3+}$ (coloured)$D$: $Sc^{3+}$ (colourless),$Co^{2+}$ (coloured)Thus,both ions are coloured in option $B$.

In which of the following pairs are both the ions coloured in aqueous solution?
(At. no. $:$ $Sc = 21, Ti = 22, Ni = 28, Cu = 29, Co = 27$)

Similar Questions

The spin-only magnetic moment value of the compound with the strongest oxidizing ability among $MnF_{4}$,$MnF_{3}$,and $MnF_{2}$ is $............$ $B.M.$ [nearest integer]

The catalytic activity of transition elements is related to their

Niobium $(Nb)$ and ruthenium $(Ru)$ have " $x$ " and " $y$ " number of electrons in their respective $4d$ orbitals. The value of $x+y$ is $...........$

The elements with the highest and the lowest enthalpy of atomisation respectively, for first row transition elements are:

Correct statement for $3d-$ series is

Vedclass Test Series

Exam Paper Generator

Online Exam Module

In which of the following pairs are both the ions coloured in aqueous solution?(At. no. $:$ $Sc = 21, Ti = 22, Ni = 28, Cu = 29, Co = 27$)