Match the coordination 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's catalyst  3. Magnesium
D. Vitamin B12  4. Iron 

Codes
 

Options:  A   B   C   D 
1. 2 3 4 1
2. 3 4 1 2
3. 1 4 3 2
4. 4 1 3

     

Subtopic:  Organometallic Complexes & their Uses |
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 Match the complex ions given in Column I with the hybridization and number of unpaired electrons given in Column II and assign the correct code. 

Column l 

Column II

(Hybridisation, number of unpaired electrons)

A. Cr(H2O)63+

1. dsp2, 1

B.Co(CN)42-

2. sp3d2, 5

C.Ni(NH3)62+

3. d2sp3, 3

D.MnF64-

4. sp3d2, 2

Codes 

Options:  A   B   C   D 
1. 2 3 4 1
2. 3 1 4 2
3. 5 4 3 2
4. 4 5 3

       

Subtopic:  VBT, CFT & their Limitations |
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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 isomerism

B. cis-Co(en)2Cl2+

2. lonisation Isomerism

C. Co(NH3)5(NO2)Cl2

3. Coordination Isomerism

D. Co(NH3)6Cr(CN)6

4. Geometrical Isomerism

Codes

          A         B          C           D

1.       2          3           4           1

2.       3          1           5           2

3.       5          4           3           2

4.       4          1           2           3

Subtopic:  Isomerism in Coordination Compounds |
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Match the compounds given in Column I with the oxidation state of

cobalt has given in column II and assigns the correct code.

Column I

(Compound)

Column II

(Oxidation state of Co)

A.Co(NCS)(NH3)5(SO3)

1. +4

B.Co(NH3)4Cl2SO4

2.  +2

C.Na4Co(S2O3)3

3. 0

D.Co2(CO)8

4.  +3

Codes

          A          B          C           D

1.       2          3           4           1

2.       3          1           5           2

3.       5          4           3           2

4.       4          1           2           3

Subtopic:  Introduction, Classification and Nomenclature |
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Assertion (A): Toxic metal ions are removed by the chelating ligands.
Reason (R): Chelate complexes tend to be more stable.


1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.

Subtopic:  Organometallic Complexes & their Uses |
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Assertion (A): Cr(H2O6)Cl2 and Fe(H2O)6Cl2 are reducing in nature.

Reason (R): Unpaired electrons are present in their d-orbitals.

1.  Both assertion and reason are true and the reason is the correct explanation of assertion.

2.  Both assertion and reason are true and reason is not the correct explanation of assertion.

3.  Assertion is true but the reason is false.

4.  Assertion is false but reason is true.

Subtopic:  VBT, CFT & their Limitations |
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Given below are two statements: 

Assertion (A): Linkage isomerism arises in coordination compounds containing ambidentate ligand.
Reason (R): Ambidentate ligand has two different donor atoms.

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.

Subtopic:  Isomerism in Coordination Compounds |
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Given below are two statements: 

Assertion (A): Complexes of the types MX6 and MX5L (where X and L represent unidentate ligands) do not exhibit geometrical isomerism.
Reason (R): Complexes with a coordination number of 6 do not display geometrical isomerism.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.
Subtopic:  Isomerism in Coordination Compounds |
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Assertion: Fe(CN)63- ion shows magnetic moment corresponding to two unpaired electrons.

Reason: Because it has d2sp3 type hybridization.

1.  Both assertion and reason are true and the reason is the correct explanation of assertion.

2.  Both assertion and reason are true and the reason is not the correct explanation of assertion.

3.  Assertion is true but the reason is false.

4.  Assertion is false but the reason is true.

Subtopic:  VBT, CFT & their Limitations |
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Match the complex ions give 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(H2O62+

3. Pale blue 

D. Ni(H2O)4(en)2+

4. Yellowish orange

Codes

Options:  A   B   C   D 
1. 2 3 4 1
2. 3 1 5 2
3. 5  4 3 2
4. 4 3 2 1

        

Subtopic:  VBT, CFT & their Limitations |
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