Which of the following compounds are colourle | vedclass

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

Question

(A) To determine if a compound is colourless,we check for the presence of unpaired electrons ($d-d$ transition). If the number of unpaired electrons $

Vedclass · Accepted Answer

$TiF_6^{2-}$ and $Cu_2Cl_2$

Vedclass · Answer

(A) To determine if a compound is colourless,we check for the presence of unpaired electrons ($d-d$ transition). If the number of unpaired electrons $(n)$ is $0$,the compound is colourless.      $TiF_6^{2-}$    $Cu_2Cl_2$        $Ti^{4+}: 3d^0$    $Cu^{+}: 3d^{10}$        $n = 0$    $n = 0$  For $CoF_6^{3-}$,$Co^{3+}$ is $3d^6$ ($n=4$,paramagnetic,coloured).For $NiCl_4^{2-}$,$Ni^{2+}$ is $3d^8$ ($n=2$,paramagnetic,coloured).Thus,$TiF_6^{2-}$ and $Cu_2Cl_2$ are colourless.

Which of the following compounds are colourless? ($TiF_6^{2-}, CoF_6^{3-}, Cu_2Cl_2$ and $NiCl_4^{2-}$) (Atomic numbers: $Ti = 22, Co = 27, Cu = 29, Ni = 28$)

Similar Questions

Which of the following is a chiral complex? Here $en = \text{ethylenediamine}$.

Among the species given below,the total number of diamagnetic species is. . . . . $H$ atom,$NO_2$ monomer,$O_2^{-}$ (superoxide),dimeric sulphur in vapour phase,$Mn_3O_4$,$(NH_4)_2[FeCl_4]$,$(NH_4)_2[NiCl_4]$,$K_2MnO_4$,$K_2CrO_4$

Which of the following statements is not correct?

Which of the following is paramagnetic?

What type of isomerism is exhibited by nitropentaamminechromium $(III)$ chloride?

Vedclass Test Series

Exam Paper Generator

Online Exam Module