NCERT Solutions For Class 12 Chemistry Chapter 9: Coordination Compounds

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Jasmine Grover

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NCERT Solutions for Class 12 Chemistry Chapter 9 Coordination Compounds discusses the composition of coordination compound surrounded by a particular number of oppositely charged ions or molecules that are neutrally charged. Some of the important topics in this chapter include:

  1. Werner’s Theory of Coordination Compounds
  2. Nomenclature of Coordination Compounds
  3. Isomerism in Coordination Compounds
  4. Bonding in Metal Carbonyls
  5. Organometallic Compounds
  6. Ligands
  7. Cis Trans Isomerism

Expected no.of questions: 1 to 5 questions of total 7 marks

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 9 pdf


NCERT Solutions for Class 12 Chemistry Chapter 9

The NCERT Solutions for class 12 Chemistry chapter 9 are as given below.

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Class 12 Chemistry Chapter 9 Coordination Compounds – Important Topics

Coordination compounds are those which consists of a central metal atom which is bonded to oppositely charged ions. These compounds do not dissociate into their constituent particles even when they are dissolved.

  • Double salts are formed when two salts in a stoichiometric ratio crystallize together from their saturated solution. Eg: Mohr’s Salt
  • Ligands are atoms or groups that are directly attached to central atoms. A ligand is a lewis base.

Isomers are two or more compounds with the same chemical formula but different atomic arrangements. It is of two types.

A. Stereomerism

  • Geometrical Isomerism
  • Optical Isomerism

​B. Structural Isomerism

  • Linkage Isomerism
  • Coordinations Isomerism
  • Ionisation Isomerism
  • Solvate Isomerism

Metal carbonyls are homoleptic complexes in which carbon monoxide (CO) serves as the ligand.

Lewis Base: A Lewis base is a species that has a lone pair of electrons and can donate a pair of electrons to form a covalent bond. 

Lewis Acid: The chemical species with empty orbitals that can accept a pair of electrons from the Lewis bases are called Lewis acids.


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CBSE CLASS XII Related Questions

  • 1.

    (a) Define 'Denatured Protein' with an example.

    (b) What happens when glucose reacts with HCN ? Write the reaction involved.

    (c) Name the disease caused by the deficiency of Vitamin C.


      • 2.
        Following reaction takes place in one step:

        \(2A + B \rightarrow 2C\)

        How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?


          • 3.
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              • 4.
                Draw the structure of 'X' in the following reaction:


                  • 5.

                    A reaction \( \mathrm{A \rightarrow B} \) follows second order kinetics. How will the rate of reaction be affected if the concentration of (i) A is increased by three times, and (ii) A is reduced to half ?


                      • 6.
                        Which of the following curve represents the first order reaction?

                          • A
                          • B
                          • C
                          • D
                        CBSE CLASS XII Previous Year Papers

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