M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
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. Which is more stronger?
N2 orN2
2. How is bond order related to bond length?
3. Define Electron affinity.
4. Write down the conjugate base of NH3 and H2O.
5. What is superconductor?
6. In what ways Schottley defect differs from Frankel
defect?
7. How does Zeolite used in water softening separation?
8. How are boranes classified?
9. Mention the uses of Beryllium.
Sub. Code
1MCH1C2
AFC-10555
2
WSS
Part B x 5 25)
Answer all questions, choosing either or
10. Construct the wave function of SP hybrid orbitals.
Or
Draw the MO diagram of nitrate ion and explain the
bond order of the molecule.
11. Define ionic radii and covalent radii. How do they
vary in a period and group?
Or
Explain with example to show that water can
behave both as acid and a base under suitable
condition.
12. Discuss the band theory of solids.
Or
Describe the role of semiconductor in solar energy
conversions.
13. Write a note on silicone.
Or
Discuss the structure of polyvanadate ion.
14. Describe the isolation and purification of Beryllium.
Or
What are metal carbonyls? How are they classified?
Give examples.
AFC-10555
3
WSS
Part C x 10 30)
Answer any three questions.
15. On the basis of hybridization, predict the geometry of the
following
SF4
ClF3 and
ClO4 .
16. Explain the following
The bond order of N2 is greater than O2
He2 molecule does not exist
Chloroacetic acid is more acidic than acetic acid
Dimethylamine is more basic than methylamine.
17. Define conductor and superconductor. Explain how the
temperature affect the conductivity of superconductor.
18. What is styx number? How does it explain the
classification of borane and carborane? Explain with
examples.
19. How is thoria prepared? Mention its uses.
Discuss the structure and bonding of ferrocene.
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