Coordination Compounds
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In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
A: Assertion and reason both are true, reason is correct of assertion.
B: Assertion and reason both are true, but reason is not the correct of assertion.
C: Assertion is true, reason is false.
D: Assertion is false, reason is true
1. Assertion: Toxic metal ions are removed by the chelating ligands.
Reason: Chelate complexes tend to be more stable.
In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
A: Assertion and reason both are true, reason is correct of assertion.
B: Assertion and reason both are true, but reason is not the correct of assertion.
C: Assertion is true, reason is false.
D: Assertion is false, reason is true
1. Assertion: Toxic metal ions are removed by the chelating ligands.
Reason: Chelate complexes tend to be more stable.
This is a Assertion and Reason Type Questions as classified in NCERT Exemplar
Ans: Correct option: A
Toxic metal ions are removed by the chelating ligands. Chelate complexes tend to be more stable. When a solution of the chelating ligand is added to a solution containing toxic metals ligands chelates
Match the compounds given in Column I with the oxidation state of cobalt present in it (given in Column II) and assign the correct code.
Column I (Compound)
Column II (Oxidation state of Co)
A. [Co(NCS)(NH3)5(SO3)]
1. + 4
B. [Co(NH3)4Cl2]SO4
2. 0
C. Na4[Co(S2O3)3]
3. +1
D. [Co2(CO)8]
4. +2
5. +3
Code
(i) A (1) B (2) C (4) D (5)
(ii) A (4) B (3) C (2) D (1)
(iii) A (5) B (1) C (4) D (2)
(iv) A (4) B (1) C (2) D (3)
Match the compounds given in Column I with the oxidation state of cobalt present in it (given in Column II) and assign the correct code.
|
Column I (Compound) |
Column II (Oxidation state of Co) |
|
A. [Co(NCS)(NH3)5(SO3)] |
1. + 4 |
|
B. [Co(NH3)4Cl2]SO4 |
2. 0 |
|
C. Na4[Co(S2O3)3] |
3. +1 |
|
D. [Co2(CO)8] |
4. +2 |
|
5. +3 |
Code
(i) A (1) B (2) C (4) D (5)
(ii) A (4) B (3) C (2) D (1)
(iii) A (5) B (1) C (4) D (2)
(iv) A (4) B (1) C (2) D (3)
This is a Matching Type Questions as classified in NCERT Exemplar
Ans: Correct option: (i)
Match the complex species given in Column I with the possible isomerism given in Column II and assign the correct code
Column I (Complex species)
Column II (Isomerism)
A. [Co(NH3)4Cl2]+
1. Optical
B. cis - [Co(en)2Cl2]+
2. Ionisation
C. [Co(NH3)5(NO2)]Cl2
3. Coordination
D. [Co(NH3)6][Cr(CN)6]
4. geometrical
5. linkage
Code :
(i) A (1) B (2) C (4) D (5)
(ii) A (4) B (3) C (2) D (1)
(iii) A (4) B (1) C (5) D (3)
(iv) A (4) B (1) C (2) D (3)
Match the complex species given in Column I with the possible isomerism given in Column II and assign the correct code
|
Column I (Complex species) |
Column II (Isomerism) |
|
A. [Co(NH3)4Cl2]+ |
1. Optical |
|
B. cis - [Co(en)2Cl2]+ |
2. Ionisation |
|
C. [Co(NH3)5(NO2)]Cl2 |
3. Coordination |
|
D. [Co(NH3)6][Cr(CN)6] |
4. geometrical |
|
5. linkage |
Code :
(i) A (1) B (2) C (4) D (5)
(ii) A (4) B (3) C (2) D (1)
(iii) A (4) B (1) C (5) D (3)
(iv) A (4) B (1) C (2) D (3)
This is a Matching Type Questions as classified in NCERT Exemplar
Ans: Correct option: (iv)
Match the complex ions given in Column I with the hybridisation and number of unpaired electrons given in Column II and assign the correct code
Column I (Complex ion)
Column II (Hybrisization, number of unpaired electrons)
A. [Cr(H2O)6]3+
1. dsp2, 1
B. [Co(CN)4]2-
2. sp3d2, 5
C. [Ni(NH3)6]2+
3. d2sp3, 3
D. [MnF6]4-
4. sp3, 4
5. sp3d2, 2
Code
(i) A (3) B (1) C (5) D (2)
(ii) A (4) B (3) C (2) D (1)
(iii) A (3) B (2) C (4) D (1)
(iv) A (4) B (1) C (2) D (3)
Match the complex ions given in Column I with the hybridisation and number of unpaired electrons given in Column II and assign the correct code
|
Column I (Complex ion) |
Column II (Hybrisization, number of unpaired electrons) |
|
A. [Cr(H2O)6]3+ |
1. dsp2, 1 |
|
B. [Co(CN)4]2- |
2. sp3d2, 5 |
|
C. [Ni(NH3)6]2+ |
3. d2sp3, 3 |
|
D. [MnF6]4- |
4. sp3, 4 |
|
5. sp3d2, 2 |
Code
(i) A (3) B (1) C (5) D (2)
(ii) A (4) B (3) C (2) D (1)
(iii) A (3) B (2) C (4) D (1)
(iv) A (4) B (1) C (2) D (3)
This is a Matching Type Questions as classified in NCERT Exemplar
Ans: Correct option: (ii)
Match the coordination compounds given in Column I with the central metal atoms given in Column II and assign the correct code
Column I (Coordination Compound)
Column II (Central metal atom)
A. Chlorophyll
1. Rhodium
B. Blood pigment
2. Cobalt
C. Wilkinson catalyst
3. calcium
D. Vitamin B12
4. iron
5. magnesium
Code
(i) A (5) B (4) C (1) D (2)
(ii) A (3) B (4) C (5) D (1)
(iii) A (4) B (3) C (2) D (1)
(iv) A (3) B (4) C (1) D (2)
Match the coordination compounds given in Column I with the central metal atoms given in Column II and assign the correct code
|
Column I (Coordination Compound) |
Column II (Central metal atom) |
|
A. Chlorophyll |
1. Rhodium |
|
B. Blood pigment |
2. Cobalt |
|
C. Wilkinson catalyst |
3. calcium |
|
D. Vitamin B12 |
4. iron |
|
5. magnesium |
Code
(i) A (5) B (4) C (1) D (2)
(ii) A (3) B (4) C (5) D (1)
(iii) A (4) B (3) C (2) D (1)
(iv) A (3) B (4) C (1) D (2)
This is a Matching Type Questions as classified in NCERT Exemplar
Ans: Correct option: (i)
Match the complex ions given in Column I with the colours given in Column II and assign the correct code
Column I (Complex ion)
Column II (Colour)
A. [Co(NH3)6]3+
1. Violet
B. [Ti(H2O)6]3+
2. Green
C. [Ni(H2O)6]2+
3. Pale blue
D. [Ni(H2O)4(en]2+ (aq)
4. Yellowish orange
5. Blue
Code
(i) A (1) B (2) C (4) D (5)
(ii) A (4) B (3) C (2) D (1)
(iii) A (3) B (2) C (4) D (1)
(iv) A (4) B (1) C (2) D (3)
Match the complex ions given in Column I with the colours given in Column II and assign the correct code
|
Column I (Complex ion) |
Column II (Colour) |
|
A. [Co(NH3)6]3+ |
1. Violet |
|
B. [Ti(H2O)6]3+ |
2. Green |
|
C. [Ni(H2O)6]2+ |
3. Pale blue |
|
D. [Ni(H2O)4(en]2+ (aq) |
4. Yellowish orange |
|
5. Blue
|
Code
(i) A (1) B (2) C (4) D (5)
(ii) A (4) B (3) C (2) D (1)
(iii) A (3) B (2) C (4) D (1)
(iv) A (4) B (1) C (2) D (3)
This is a Matching Type Questions as classified in NCERT Exemplar
Ans: Correct option: (ii)
Which of the following complexes show linkage isomerism?
A: [Co(NH3)5(NO2)]2+
B: [Co(H2O)5]3+
C: [Cr(NH3)5SCN]2+
D: [Fe(en)5Cl2]+
Which of the following complexes show linkage isomerism?
A: [Co(NH3)5(NO2)]2+
B: [Co(H2O)5]3+
C: [Cr(NH3)5SCN]2+
D: [Fe(en)5Cl2]+
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: C
Coordination compounds with the same composition but varying ligand-metal connectivity are known as linkage isomerism.
[Co (NH3)5 (NO2)]2+ , NO2 has two donor sites N and O
[Cr (NH3)5SCN]2+ , S and N a
Identify the correct statements for the behaviour of ethane-1, 2-diamine as a ligand.
A: It is a neutral ligand.
B: It is a didentate ligand.
C: It is a chelating ligand.
D: It is a unidentate ligand
Identify the correct statements for the behaviour of ethane-1, 2-diamine as a ligand.
A: It is a neutral ligand.
B: It is a didentate ligand.
C: It is a chelating ligand.
D: It is a unidentate ligand
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct options: A, B and C
Option A, B, and C describe that ethane-1, 2-diamine is a neutral ligand due to its lack of charge, a bidentate ligand due to the presence of two donor sites on one nitrogen atom, and a chelating liga
Identify the optically active compounds from the following.
A: [Co(en)3]3+
B: trans - [Co(en)2]+
C: cis - [Co(en)2Cl2]+
D: [Cr(NH3)5Cl]
Identify the optically active compounds from the following.
A: [Co(en)3]3+
B: trans - [Co(en)2]+
C: cis - [Co(en)2Cl2]+
D: [Cr(NH3)5Cl]
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: A and C

Optical compounds are highly imposable compounds that lack symmetry components. As a result, Option A and C are mirror reflections of each other.
Which of the following complexes are heteroleptic?
A: [Cr(NH3)6]3+
B: [Fe(NH3)4Cl]+
C: [Mn(CN)6]4-
D: [Co(NH3)6Cl2]
Which of the following complexes are heteroleptic?
A: [Cr(NH3)6]3+
B: [Fe(NH3)4Cl]+
C: [Mn(CN)6]4-
D: [Co(NH3)6Cl2]
This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Correct option: B and D
Heteroleptic is a compound that contains many ligands of various sorts. NH3 and
Cl as a ligand or also called as donor groups, is a heteroleptic complex.