Coordination Compounds
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Due to the presence of ambidentate ligands coordination compounds show isomerism. Palladium complexes of the type [Pd(C6H5)2(SCN)2] and [Pd(C6H5)2(NCS)2] are
(A) Linkage isomers
(B) Coordination isomers
(C) Ionization isomers
(D) Geometrical isomers
Due to the presence of ambidentate ligands coordination compounds show isomerism. Palladium complexes of the type [Pd(C6H5)2(SCN)2] and [Pd(C6H5)2(NCS)2] are
(A) Linkage isomers
(B) Coordination isomers
(C) Ionization isomers
(D) Geometrical isomers
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: (A)
Linkage isomerism arises in a coordination compound containing ambidentate ligand.
A simple example is by complexes containing the thiocyanate ligand, NCS-which may bind through the nitrogen to give M-NCS or th
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The CFSE for octahedral [CoCl6]4- is 18,000 cm−1. The CFSE for tetrahedral [CoCl4]2- will be
A: 18,000 cm−1
B: 16,000 cm−1
C: 8,000 cm−1
D: 20,000 cm−1
The CFSE for octahedral [CoCl6]4- is 18,000 cm−1. The CFSE for tetrahedral [CoCl4]2- will be
A: 18,000 cm−1
B: 16,000 cm−1
C: 8,000 cm−1
D: 20,000 cm−1
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: A
CFSE for octahedral and tetrahedral complex is related as
Δt = Δ0
Where Δ0= CFSE for octahedral complex
Δ0= CFSE for tetrahedral complex
Δ0=1800 cm−1
Δt =49×18000=8000 cm−1
Upvote Indicate the complex ion which shows geometrical isomerism.
A: [Cr(H2O)4Cl2]+
B: [Pt(NH3)3Cl]
C: [Co(NH3)6]3+
D: [Co(CN)5](NC)3-
Indicate the complex ion which shows geometrical isomerism.
A: [Cr(H2O)4Cl2]+
B: [Pt(NH3)3Cl]
C: [Co(NH3)6]3+
D: [Co(CN)5](NC)3-
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: A
This is due to the complex's octahedral structure and (cis-trans) isomerism. Two Cl ligands are next to each other in trans isomerism. Although these isomers have the same structure, they are not identical.
Possi
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The stabilisation of coordination compounds due to chelation is called the chelate effect. Which of the following is the most stable complex species?
A: [Fe(CO)5]
B: [Fe(CN)6]3-
C: [Fe(C2O4)3]3-
D: [Fe(H2O)6]3+
A: [Fe(CO)5]
B: [Fe(CN)6]3-
C: [Fe(C2O4)3]3-
D: [Fe(H2O)6]3+
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: C
The chelate effect is when a chelating ligand coordinates the stabilisation of a molecule. Any ligand that binds to metal forms a ring with 5 or 6 members, which is the most stable.
Here, CO, CN, H2O is monodenta
Upvote The correct IUPAC name of [Pt(NH3)2Cl2] is
(i) Diamminedichloridoplatinum (II)
(ii) Diamminedichloridoplatinum (IV)
(iii) Diamminedichloridoplatinum (0)
(iv) Dichloridodiammineplatinum (IV)
The correct IUPAC name of [Pt(NH3)2Cl2] is
(i) Diamminedichloridoplatinum (II)
(ii) Diamminedichloridoplatinum (IV)
(iii) Diamminedichloridoplatinum (0)
(iv) Dichloridodiammineplatinum (IV)
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: A
Diamminedichloridoplatinum (II) is also known as azane
Upvote When 1 mol [CrCl3(H2O)3]6H2O is treated with excess of AgNO3, 3 mol of AgCl are obtained. The formula of the complex is:
A: [CrCl3(H2O)3 ].3H2O
B: [CrCl2(H2O)4]Cl.2H2O
C: [CrCl2(H2O)5]Cl2H2O
D: [Cr(H2O)6]Cl3
When 1 mol [CrCl3(H2O)3]6H2O is treated with excess of AgNO3, 3 mol of AgCl are obtained. The formula of the complex is:
A: [CrCl3(H2O)3 ].3H2O
B: [CrCl2(H2O)4]Cl.2H2O
C: [CrCl2(H2O)5]Cl2H2O
D: [Cr(H2O)6]Cl3
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: D
When 1 mol [CrCl3 (H2O)3]6H2O is treated with excess of AgNO3, 3 mol of AgCl is produced, i.e., [CrCl3 (H2O)3]6H2Ois dissociated in aqueous solution and all three chloride comes in solution.
[Cr (H2O)6]Cl3→ [Cr
Upvote When 0.1 mol CoCl3(NH3)5 is treated with excess of AgNO3, 0.2 mol of AgCl are obtained. The conductivity of solution will correspond to
A: 1:3 electrolyte
B: 1:2 electrolyte
C: 1:1 electrolyte
D: 3:1 electrolyte
When 0.1 mol CoCl3(NH3)5 is treated with excess of AgNO3, 0.2 mol of AgCl are obtained. The conductivity of solution will correspond to
A: 1:3 electrolyte
B: 1:2 electrolyte
C: 1:1 electrolyte
D: 3:1 electrolyte
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: B
When 0.1 mol CoCl3 (NH3)5 is treated with excess of AgNO3, In the given reaction [CoCl3 (NH3)5]Cl2
then electrolytic solution must contain
[CoCl3 (NH3)5]Cl2+ and two Cl- ions.
Hence, it is
Upvote The colour of the coordination compounds depends on the crystal field splitting. What will be the correct order of absorption of wavelength of light in the visible region, for the complexes, [Co(NH3)6]3+, [Co(H2O)6]3+.
A: [Co(H2O)6]3+ > [Co(NH3)6]3+ > [Co(H2O)6]3+ .
B: [Co(NH3)6]3+ > [Co(H2O)6]3+ > [Co(CN)6]3-
C: [Co(H2O)6]3+ > [Co(NH3)6]3+ > [Co(CN)6]3-
D: [Co(CN)6]3- > [Co(NH3)6]3+ > [Co(H2O)6]3+
The colour of the coordination compounds depends on the crystal field splitting. What will be the correct order of absorption of wavelength of light in the visible region, for the complexes, [Co(NH3)6]3+, [Co(H2O)6]3+.
A: [Co(H2O)6]3+ > [Co(NH3)6]3+ > [Co(H2O)6]3+ .
B: [Co(NH3)6]3+ > [Co(H2O)6]3+ > [Co(CN)6]3-
C: [Co(H2O)6]3+ > [Co(NH3)6]3+ > [Co(CN)6]3-
D: [Co(CN)6]3- > [Co(NH3)6]3+ > [Co(H2O)6]3+
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: A
Strong field ligands have five degenerate energy levels, which means they have more energy separation than weak field ligands.
Here, ΔE=
ΔE α
α
The wavelength decreases as the energy separation rises.
Upvote Which of the following complexes formed by Cu2+ ions are most stable?
(i) Cu2+ + 4NH3⇌[Cu(NH3)4]2+,logK=11.6
(ii) Cu2+ + 4CN−⇌[Cu(CN)4]2−,logK=27.3
(iii) Cu2+ + 2en⇌[Cu(en)2]2+,logK=15.4
(iv) Cu2+ + 4H2O⇌[Cu(H2O)4]2+,logK=8.9
Which of the following complexes formed by Cu2+ ions are most stable?
(i) Cu2+ + 4NH3⇌[Cu(NH3)4]2+,logK=11.6
(ii) Cu2+ + 4CN−⇌[Cu(CN)4]2−,logK=27.3
(iii) Cu2+ + 2en⇌[Cu(en)2]2+,logK=15.4
(iv) Cu2+ + 4H2O⇌[Cu(H2O)4]2+,logK=8.9
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct options: B
The bigger the value of constant, the better will be the stability.
Here, has the highest value of logk which corresponds to the highest value of k.
Upvote Name the type of isomerism when ambidentate ligands are attached to central metal ion. Give two examples of ambidentate ligands.
Name the type of isomerism when ambidentate ligands are attached to central metal ion. Give two examples of ambidentate ligands.
This is a Short Answer Type Questions as classified in NCERT Exemplar
Ans: Ambidentate ligands are ligands which have two donating sites. Coordinating compounds containing ambidentate ligands show linkage isomerism due to two different binding positions. Linkage isomerism have same ligand and g
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