M.Sc. DEGREE EXAMINATION, APRIL 2018
First Semester
Chemistry
INORGANIC CHEMISTRY I
(CBCS 2011 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Calculate the bond order of CO.
2. Predict the geometry of SF4 using hybridiazation.
3. Define ionic radii.
4. What is symbiosis?
5. What is n-type semiconductor?
6. How are solids classified?
7. Mention the uses of silicones.
8. Give the styx number of B4H10.
9. What are cyclic silicates? Give an example.
10. What is thoria? How is it prepared?
Sub. Code
1MCH1C2
AFC-10816
2
WS3
Part B x 5 25)
Answer all questions, choosing either or
11. Draw and explain MO diagram of NO molecule.
Or
Discuss the postulates of VB theory.
12. State and explain Fajan's rule.
Or
Explain the periodic variations of electron affinity
and electronegativity.
13. Write short notes on covalent and molecular solids.
Or
Explain the band theory of solids.
14. Discuss the structure of poly vanadate ion.
Or
Explain the wades rule in the classification borane
and carborane.
15. Discuss the structure of iron carbonyls.
Or
Describe the isolation and purification of beryllium
from its ore.
AFC-10816
3
WS3
Part C x 10 30)
Answer any three questions.
16. What are sigma and pi bonds? How are they
distinguished?
Explain the MO diagram of carbonate ion
17. Discuss the Lowry-Bronsted and generalised concept of
acid and bases.
18. What are super conductors? Explain the variation of
conductivity with temperature.
Discuss the role of semiconductors in solar energy
conversions.
19. Give the preparation and structure of B4H10.
What is inorganic benzene? How is it prepared?
Mention its uses.
20. Discuss the synthesis and structure of ferrocene.
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