My Cart
Your Cart 0

    Your cart is empty.

  • Total (Amount) ₹0.00
NCERT Exemplar · Class 12 · Chemistry

Chapter 9: Coordination Compounds

Practice each question, then open the answer or worked solution.

Read chapter PDFDownload PDF

II. Multiple Choice Questions (Type-II)

31 questions
Q35Written answer

Name the type of isomerism when ambidentate ligands are attached to a central metal ion. Give two examples of ambidentate ligands.

Show solutionHide solution
Worked solution

Ambidendate ligands are those having different two binding sites.

Examples: Isothiocyanato Thiocyanato and Nitrite-N Nitrito-O

The type of isomerism when ambidentate ligands are attached to a central metal ion is called linkage isomerism because they only differ in the atom that is linked to the central metal ion.

V. Matching Type

Note: In the following questions match the items given in Columns I and II.

Q36Written answer

Match the complex ions given in Column I with the colours given in Column II

and assign the correct code :

Column I (Complex ion)

A. [Co(NH3)6]3+

B. [Ti(H2O)6]3+

C. [Ni(H2O)6]2+

D. (Ni (H2O)4(en)]2+ (aq)

Column II (Colour)

1. Violet

2. Green

3. Pale blue

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)

Show solutionHide solution
Worked solution

Option (ii) is the answer.

Q37Written answer

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)

A. Chlorophyll

B. Blood pigment

C. Wilkinson catalyst

D. Vitamin B12

Column II (Central metal atom)

1. rhodium

2. cobalt

3. calcium

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)

Show solutionHide solution
Worked solution

Option (i) is the answer.

Q38Written answer

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)

A. [Cr(H2O)6]3+

B. [Co(CN)4]2– 2.

C. [Ni(NH3)6]2+

D. [MnF6]4–

Column II (Hybridisation,

number of unpaired electrons)

1. dsp2, 1

2.sp3d2, 5

3. d2sp3, 3

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)

Show solutionHide solution
Worked solution

Option (i) is the answer

Q39Written answer

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)

A. [Co(NH3)4Cl2]+

B. cis-[Co(en)2Cl2]+

C. [Co(NH3)5(NO2)]Cl2

D. [Co(NH3)6][Cr(CN)6]

Column II (Isomerism)

1. Optical

2. Ionisation

3. Coordination

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)

Show solutionHide solution
Worked solution

Option (iv) is the answer

Q40Written answer

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)

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

B. [Co(NH3)4Cl2]SO4

C. Na4[Co(S2O3)3]

D. [Co2(CO)8]

Column II (Oxidation state of Co)

1.+4

2. 0

3. +1

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)

Show solutionHide solution
Worked solution

Option (ii) is the answer.

V. Assertion and Reason Type

Note: 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.

(i) Assertion and reason both are true, the reason is the correct explanation of

assertion.

(ii) Assertion and reason both are true but the reason is not the correct

explanation of assertion.

(iii) An assertion is true, the reason is false.

(iv) The assertion is false, the reason is true.

Q41Written answer

Assertion: Toxic metal ions are removed by the chelating ligands.

Reason: Chelate complexes tend to be more stable.

Show solutionHide solution
Worked solution

Option (i) is correct.

Q42Written answer

Assertion : [Cr(H2O)6]Cl2 and [Fe(H2O)6]Cl2 are reducing in nature.

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

Show solutionHide solution
Worked solution

Option (ii) is correct.

Q43Written answer

Assertion: Linkage isomerism arises in coordination compounds containing ambidentate ligand.

Reason: Ambidentate ligand has two different donor atoms.

Show solutionHide solution
Worked solution

Option (i) is correct

Q44Written answer

Assertion: Complexes of MX6 and MX5L type (X and L are unidentate) do not show geometrical isomerism.

Reason: Geometrical isomerism is not shown by complexes of coordination number 6.

Show solutionHide solution
Worked solution

Option (iii) is correct.