Coordination Compounds part 1

Download as PDF.

NCERT Class 12 Chemistry Chapter-wise Solutions

•  1 – The Solid State
• 2 – Solutions
• 3 – Electrochemistry
• 4 – Chemical Kinetics
• 5 – Surface Chemistry
• 6 – General Principles and Processes of Isolation of Elements
• 7 – The p-Block Elements
• 8 – The d-and f-Blocks Elements
• 9 – Coordination Compounds
• 10 – Haloalkanes and Haloarenes
• 11 – Alcohols, Phenols and Ethers
• 12 – Aldehydes, Ketones and Carboxylic Acids
• 13 – Amines
• 14 – Biomolecules
• 15 – Polymers
• 16 – Chemistry in Everyday Life

CHAPTER NINE COORDINATION COMPOUNDS

• 9.1 Werner’s Theory of Coordination Compounds
• 9.2 Definition of Some Important Terms Pertaining to Coordination Compounds
• 9.3 Nomenclature of Coordination Compounds
• 9.4 Isomerism in Coordination Compounds
• 9.5 Bonding in Coordination Compounds
• 9.6 Bonding in Metal Carbonyls
• 9.7 Stability of Coordination Compounds
• 9.8 Importance and Applications of Coordination Compounds

NCERT Solutions class 12 Chemistry Coordination Compounds part 1

1. Explain the bonding in coordination compounds in terms of Werner’s postulates.

2. solution mixed with solution in 1:1 molar ratio gives the test of ion but solution mixed with aqueous ammonia in 1:4 molar ratio does not give the test of ion. Explain why?

3. Explain with two examples each of the following: coordination entity, ligand, coordination number, coordination polyhedron, homoleptic and heteroleptic.

4. What is meant by unidentate, didentate and ambidentate ligands? Give two examples for each.

5. Specify the oxidation numbers of the metals in the following coordination entities:

(i)

(ii)

(iii)

(iv)

(v)

6. Using IUPAC norms write the formulas for the following:

(i) Tetrahydroxozincate(II)

(ii) Potassium tetrachloridopalladate(II)

(iii) Diamminedichloridoplatinum(II)

(iv) Potassium tetracyanonickelate(II)

(v) Pentaamminenitrito-O-cobalt(III)

(vi) Hexaamminecobalt(III) sulphate

(vii) Potassium tri(oxalato)chromate(III)

(viii) Hexaammineplatinum(IV)

(ix) Tetrabromidocuprate(II)

(x) Pentaamminenitrito-N-cobalt(III)

7. Using IUPAC norms write the systematic names of the following:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

(ix)

8. List various types of isomerism possible for coordination compounds, giving an example of each.

9. How many geometrical isomers are possible in the following coordination entities?

(i)

(ii)

10. Draw the structures of optical isomers of:

(i)

(ii)

(iii)

11. Draw all the isomers (geometrical and optical) of:

(i)

(ii)

(iii)

12. Write all the geometrical isomers of and how many of these will exhibit optical isomers?

13. Aqueous copper sulphate solution (blue in colour) gives:

(i) a green precipitate with aqueous potassium fluoride, and

(ii) a bright green solution with aqueous potassium chloride

Explain these experimental results.

14. What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when is passed through this solution?

15. Discuss the nature of bonding in the following coordination entities on the basis of valence bond theory:

(i)

(ii)

(iii)

(iv)

16. Draw figure to show the splitting of d orbitals in an octahedral crystal field.

 covers both organic and inorganic chemistry. Please note that CBSE has reduced the syllabus for class 12 Chemistry. So, you must check the latest syllabus of CBSE while going through the NCERT solution of any chapter given in the class 12 NCERT book.