Which of the following complex ions does not | vedclass

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

Question

(A) $1$. In $[MnO_4]^-$,the oxidation state of $Mn$ is $x + 4(-2) = -1$,so $x = +7$. The electronic configuration of $Mn$ $(Z=25)$ is $[Ar] 3d^5 4s^2$

Vedclass · Accepted Answer

$[MnO_4]^-$

Vedclass · Answer

(A) $1$. In $[MnO_4]^-$,the oxidation state of $Mn$ is $x + 4(-2) = -1$,so $x = +7$. The electronic configuration of $Mn$ $(Z=25)$ is $[Ar] 3d^5 4s^2$. Thus,$Mn^{7+}$ is $[Ar] 3d^0 4s^0$. It has no $d$-electrons.$2$. In $[Co(NH_3)_6]^{3+}$,$Co$ is in $+3$ state. $Co$ $(Z=27)$ is $[Ar] 3d^7 4s^2$,so $Co^{3+}$ is $[Ar] 3d^6$. It has $d$-electrons.$3$. In $[Fe(CN)_6]^{3-}$,$Fe$ is in $+3$ state. $Fe$ $(Z=26)$ is $[Ar] 3d^6 4s^2$,so $Fe^{3+}$ is $[Ar] 3d^5$. It has $d$-electrons.$4$. In $[Cr(H_2O)_6]^{3+}$,$Cr$ is in $+3$ state. $Cr$ $(Z=24)$ is $[Ar] 3d^5 4s^1$,so $Cr^{3+}$ is $[Ar] 3d^3$. It has $d$-electrons.Therefore,the correct option is $A$.

$A. sp^3$	$(i). [Co(NH_3)_6]^{3+}$
$B. dsp^2$	$(ii). [Ni(CO)_4]$
$C. sp^3d^2$	$(iii). [Pt(NH_3)_2Cl_2]$
$D. d^2sp^3$	$(iv). [CoF_6]^{3-}$
	$(v). [Fe(CO)_5]$

Which of the following complex ions does not contain any $d$-electrons in the central metal atom?

Similar Questions

Match the following hybridization in Column $I$ with the corresponding coordination complexes in Column $II$.
$A. sp^3$ $(i). [Co(NH_3)_6]^{3+}$
$B. dsp^2$ $(ii). [Ni(CO)_4]$
$C. sp^3d^2$ $(iii). [Pt(NH_3)_2Cl_2]$
$D. d^2sp^3$ $(iv). [CoF_6]^{3-}$
$(v). [Fe(CO)_5]$

The hybridisation and geometry of $[Ni(CN)_4]^{2-}$ are:

What is the hybridisation and shape of $Cr$ in chromyl chloride $(CrO_2Cl_2)$?

Which of the following systems in an octahedral complex has the maximum number of unpaired electrons?

Chromium hexacarbonyl,$Cr(CO)_6$,is an octahedral compound involving which type of hybridization?

Vedclass Test Series

Exam Paper Generator

Online Exam Module