Identify the incorrect match from the followi | vedclass

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

Question

(C) In $[Cr(H_2O)_6]Br_2$,$Cr$ is in $+2$ oxidation state $(3d^4)$,which has $4$ unpaired electrons,so it is paramagnetic.In $Na_4[Fe(CN)_6]$,$Fe$ is

Vedclass · Accepted Answer

$[Ni(CO)_4]$ - Paramagnetic

Vedclass · Answer

(C) In $[Cr(H_2O)_6]Br_2$,$Cr$ is in $+2$ oxidation state $(3d^4)$,which has $4$ unpaired electrons,so it is paramagnetic.In $Na_4[Fe(CN)_6]$,$Fe$ is in $+2$ oxidation state $(3d^6)$. $CN^-$ is a strong field ligand,causing pairing of electrons,resulting in $0$ unpaired electrons,so it is diamagnetic.In $[Ni(CO)_4]$,$Ni$ is in $0$ oxidation state $(3d^8 4s^2)$. $CO$ is a strong field ligand,causing pairing of all electrons,resulting in $0$ unpaired electrons,so it is diamagnetic.In $Na_2[NiCl_4]$,$Ni$ is in $+2$ oxidation state $(3d^8)$. $Cl^-$ is a weak field ligand,resulting in $2$ unpaired electrons,so it is paramagnetic.Therefore,the incorrect match is $[Ni(CO)_4]$ - Paramagnetic.

Identify the incorrect match from the following:

Similar Questions

Identify the types of isomers shown in the structures $(i)$ and $(ii)$:

Which of the following polymerisation isomers of the compound having empirical formula $Cr(NH_3)_3(NO_2)_3$ has the lowest molecular mass?

$Fac$ and $Mer$ isomerism is associated with which of the following general formula?

Two soluble salts of iron $A$ & $B$,on combining with excess of a reagent $(R)$ produce compound $C$ (pale yellow) & $D$ (yellow) respectively. Reaction of $A$ with $D$ and that of $B$ with $C$ both produce a blue coloured compound. Which of the following statements is correct?

The number of possible isomers for the square planar complex $K_2[PdClBr_2SCN]$ is .................

Vedclass Test Series

Exam Paper Generator

Online Exam Module