The document discusses coordination compounds and includes questions about their definitions, naming conventions, isomerism, crystal field theory and bonding models. It contains short answer and long answer questions ranging from 1 to 5 marks covering various topics related to coordination compounds.
The document discusses coordination compounds and includes questions about their definitions, naming conventions, isomerism, crystal field theory and bonding models. It contains short answer and long answer questions ranging from 1 to 5 marks covering various topics related to coordination compounds.
The document discusses coordination compounds and includes questions about their definitions, naming conventions, isomerism, crystal field theory and bonding models. It contains short answer and long answer questions ranging from 1 to 5 marks covering various topics related to coordination compounds.
The document discusses coordination compounds and includes questions about their definitions, naming conventions, isomerism, crystal field theory and bonding models. It contains short answer and long answer questions ranging from 1 to 5 marks covering various topics related to coordination compounds.
Date Planned : __ / __ / __ CBSE Pattern Expected Duration : 90 Min
Actual Date of Attempt : __ / __ / __ Level-0 Exact Duration :_________
Very Short Answer Type (1 Mark) 1. Define coordination entity.
2. What are ligands ?
3. What do you mean by coordination number ?
4. Define coordination polyhedron.
5. Define homoleptic complexes.
6. Define heteroleptic complexes.
7. Using IUPAC norms write the formulas for the following :
(i) Tetrahydroxozincate(II) (ii) Potassium tetrachloridopalladate(II)
8. Using IUPAC norms write the systematic names of the following :
(i) Co(NH3 )6 Cl3 (ii) Pt(NH3 )2 Cl(NH2CH3 ) Cl Short Answer Type-I (2 Marks) 9. What do you mean by unidentate, didentate and ambidentate ligands? Give two examples for each.
10. Specify the oxidation numbers of the metals in the following coordination entities : (i) Co(H2O)(CN)(en)2 2 (ii) Pt(Cl)4 2 11. Using IUPAC norms write the formulas for the following : 3 (i) Ti (H2O)6 (ii) Co(NH3 )4 Cl(NO2 )Cl
(iii) Mn(H2O)6 2 (iv) NiCl 4 2
(v) Co(en)3 3 (vi) Ni(CO)4 12. What do you mean by co-ordination isomerism? Given an example to support.
13. What is Ionization isomerism? Give an example.
14. Draw the structures of optical isomers of :
(i) Cr(C2O4 )3 3 (ii) PtCl 2(en)2 2 (iii) Cr(NH3 )2 Cl 2(en) Short Answer Type-II (3 Marks)
15. FeSO4 solution mixed with (NH4 )2 SO4 solution in 1 : 1 molar ratio gives the test of Fe2 ion but
CuSO 4 solution mixed with aqueous ammonia in 1 : 4 molar ratio does not give the test of Cu2 ion. Explain why ? 16. Draw the structures of (geometrical and optical isomers) of : 2 (i) CoCl2 (en)2 (ii) Co(NH3 )Cl(en)2 (iii) Cr(NH3 )2 Cl 2(en) 17. 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.
CBSE Pattern | Level-0 1 Coordination Compounds
18. 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 H2 S (g) is passed through this solution ?
19. Draw figure to show the splitting of d-orbitals in an octahedral crystal field.
20. What is crystal field splitting energy? How does the magnitude of 0 decide the actual configuration of d-orbitals in a coordination entity ?
21. Discuss the nature of bonding in metal carbonyls.
Long Answer Type (5 Mark)
22. Write down the IUPAC name for each of the following complexes and indicate the oxidation state, electronic configuration and coordination number. Also give stereochemistry and magnetic moment of the complex : (i) K Cr(H2O)2 (C2O4 )2 3H2O (ii) Co(NH3 )5 Cl Cl2 (iii) CrCl3 (py)3
(iv) Cs FeCl 4 (v) K 4 Mn(CN)6
23. Explain the bonding in coordination compounds in terms of Werner’s postulates.
24. Write all the geometrical isomers of Pt (NH3 )(Br)(Cl)(py) and how many of these will exhibit optical isomers ?
25. Discuss the nature of bonding in the following coordination entities on the basis of valence bond theory : (i) Fe(CN)6 4 (ii) FeF6 3 (iii) Co(C2O4 )3 3 (iv) CoF6 3
