Coordination Compounds

Question

Which one of the following ions exhibits d-d transition and paramagnetism as well?

$C r O_{4}^{2 -}$

$C r_{2} O_{7}^{2 -}$

$M n O_{4}^{2 -}$

$M n O_{4}^{-}$

Solution

$M n O_{4}^{2 -}$

$C r O_{4}^{2 -} \Rightarrow C r^{+ 6} = [A r] U n p a i r e d e l e c t r o n (n) = 0; D i a m a g n e t i c C r_{2} O_{7}^{2 -} \Rightarrow C r^{+ 6} = [A r] U n p a i r e d e l e c t r o n (n) = 0; D i a m a g n e t i c M n O_{4}^{2 -} = M n^{6 +} = [A r] 3 d^{1} U n p a i r e d e l e c t r o n (n) = 1; P a r a m a g n e t i c M n O_{4}^{-} = M n^{+ 7} = [A r] U n p a i r e d e l e c t r o n (n) = 0; D i a m a g n e t i c$

Some More Questions From Coordination Compounds Chapter

Write the formula for the following coordination compound:
Potassium tetracyanidonickelate(II)

Write the formula for the following coordination compound:
Tris(ethane -1, 2-diamine) chromium(III) chloride

Write the formula for the following coordination compound:
Amminebromidochloridonitrito-N-platinate (II)

Write the formula for the following coordination compound:
Dichloridobis(ethane-1, 2-diamine)platinum(lV) nitrate.

Write the formula for the following coordination compound:
Iron(III) hexacyanidoferrate(II)

Write the IUPAC names of the following coordination compounds:
(i) [Co(NH₃)₆]Cl₃(ii) [Co(NH₃)₅Cl]Cl₂
(iii) K₃[Fe(CN)₆]
(iv) K₃[Fe(C₂O₄)_3]
(v) K₂[PdCl4]
(vi) [Pt(NH₃)₂Cl(NH₂CH₃)]Cl.

Indicate the type of isomerism exhibited by the following complexes and draw structures for these isomers:
(i) K[Cr(H₂O)₂(C₂O₄)₂], (ii) [Co(en)₃Cl₃,
(iii) [Co(NH₃)₅(NO₂)]|NO₃]₂, (iv) [Pt(NH₃)(H₂O)Cl₂]

Explain on the basis of valence bond theory that [Ni(CN)₄]^2– ion with square planar is diamagnetic and the [NiCl₄]^2– ion with tetrahedral geometry is paramagnetic.

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Coordination Compounds

Which one of the following ions exhibits d-d transition and paramagnetism as well?

$C r O_{4}^{2 -}$

$C r_{2} O_{7}^{2 -}$

$M n O_{4}^{2 -}$

$M n O_{4}^{-}$

Some More Questions From Coordination Compounds Chapter

Write the formula for the following coordination compound:
Potassium tetracyanidonickelate(II)

Write the formula for the following coordination compound:
Tris(ethane -1, 2-diamine) chromium(III) chloride

Write the formula for the following coordination compound:
Amminebromidochloridonitrito-N-platinate (II)

Write the formula for the following coordination compound:
Dichloridobis(ethane-1, 2-diamine)platinum(lV) nitrate.

Write the formula for the following coordination compound:
Iron(III) hexacyanidoferrate(II)

Write the IUPAC names of the following coordination compounds:
(i) [Co(NH₃)₆]Cl₃(ii) [Co(NH₃)₅Cl]Cl₂
(iii) K₃[Fe(CN)₆]
(iv) K₃[Fe(C₂O₄)_3]
(v) K₂[PdCl4]
(vi) [Pt(NH₃)₂Cl(NH₂CH₃)]Cl.

Indicate the type of isomerism exhibited by the following complexes and draw structures for these isomers:
(i) K[Cr(H₂O)₂(C₂O₄)₂], (ii) [Co(en)₃Cl₃,
(iii) [Co(NH₃)₅(NO₂)]|NO₃]₂, (iv) [Pt(NH₃)(H₂O)Cl₂]

Explain on the basis of valence bond theory that [Ni(CN)₄]^2– ion with square planar is diamagnetic and the [NiCl₄]^2– ion with tetrahedral geometry is paramagnetic.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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Coordination Compounds

Which one of the following ions exhibits d-d transition and paramagnetism as well? CrO42- Cr2O72- MnO42- MnO4-

Some More Questions From Coordination Compounds Chapter

Write the formula for the following coordination compound:Potassium tetracyanidonickelate(II)

Write the formula for the following coordination compound:Tris(ethane -1, 2-diamine) chromium(III) chloride

Write the formula for the following coordination compound:Amminebromidochloridonitrito-N-platinate (II)

Write the formula for the following coordination compound:Dichloridobis(ethane-1, 2-diamine)platinum(lV) nitrate.

Write the formula for the following coordination compound:Iron(III) hexacyanidoferrate(II)

Write the IUPAC names of the following coordination compounds:(i) [Co(NH3)6]Cl3(ii) [Co(NH3)5Cl]Cl2(iii) K3[Fe(CN)6](iv) K3[Fe(C2O4)3](v) K2[PdCl4] (vi) [Pt(NH3)2Cl(NH2CH3)]Cl.

Indicate the type of isomerism exhibited by the following complexes and draw structures for these isomers:(i) K[Cr(H2O)2(C2O4)2], (ii) [Co(en)3Cl3, (iii) [Co(NH3)5(NO2)]|NO3]2, (iv) [Pt(NH3)(H2O)Cl2]

Explain on the basis of valence bond theory that [Ni(CN)4]2– ion with square planar is diamagnetic and the [NiCl4]2– ion with tetrahedral geometry is paramagnetic.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Which one of the following ions exhibits d-d transition and paramagnetism as well?

$C r O_{4}^{2 -}$

$C r_{2} O_{7}^{2 -}$

$M n O_{4}^{2 -}$

$M n O_{4}^{-}$

Write the formula for the following coordination compound:
Potassium tetracyanidonickelate(II)

Write the formula for the following coordination compound:
Tris(ethane -1, 2-diamine) chromium(III) chloride

Write the formula for the following coordination compound:
Amminebromidochloridonitrito-N-platinate (II)

Write the formula for the following coordination compound:
Dichloridobis(ethane-1, 2-diamine)platinum(lV) nitrate.

Write the formula for the following coordination compound:
Iron(III) hexacyanidoferrate(II)

Write the IUPAC names of the following coordination compounds:
(i) [Co(NH₃)₆]Cl₃(ii) [Co(NH₃)₅Cl]Cl₂
(iii) K₃[Fe(CN)₆]
(iv) K₃[Fe(C₂O₄)_3]
(v) K₂[PdCl4]
(vi) [Pt(NH₃)₂Cl(NH₂CH₃)]Cl.

Indicate the type of isomerism exhibited by the following complexes and draw structures for these isomers:
(i) K[Cr(H₂O)₂(C₂O₄)₂], (ii) [Co(en)₃Cl₃,
(iii) [Co(NH₃)₅(NO₂)]|NO₃]₂, (iv) [Pt(NH₃)(H₂O)Cl₂]

Explain on the basis of valence bond theory that [Ni(CN)₄]^2– ion with square planar is diamagnetic and the [NiCl₄]^2– ion with tetrahedral geometry is paramagnetic.