M.Sc. DEGREE EXAMINATION, APRIL 2017
Second Semester
Chemistry (Specialization in Nano Science and
Technology)
Elective III — SYNTHESIS AND ANALYSIS OF
NANOMATERIALS
(2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Name a few bottom-up processes are used in
nanomaterial synthesis.
2. What is arc plasma technique?
3. How would you distinguish solvothermal and
hydrothermal processes?
4. What is meant by templated synthesis?
5. List the various types of epitaxial growth techniques.
6. What is meant by dry and wet etching?
7. Mention the names of bacteria used in nanoparticle
synthesis.
8. What is the role of fungi in the nanomaterial synthetic
scheme?
Sub. Code
538503
RW-171
2
Ws5
9. UV-VIS absorption peaks are not sharp
Glass cuvettes are not used in UV-VIS
spectrophotometric. Give reasons.
10. Point out the applications of mass spectroscopy.
Part B x 5 25)
Answer all questions.
11. Discuss the characteristics of inert gas condensation
technique.
Or
List the advantages of laser ablation technique.
12. Explain sol-gel processing technique for the
synthesis of Au nanoparticles.
Or
What is meant by sonochemical synthesis? Mention
its advantages.
13. Describe pulse laser deposition method.
Or
Explain micro contact printing method.
14. Outline the synthesis of magnetic nanoparticles
using bacteria.
Or
Explain the role of fungi in the synthesis of metal
oxide nanoparticles.
15. Discuss the working principle of NMR spectroscopy.
Or
Write the selection rules for IR, Raman and UV-VIS
spectroscopy.
RW-171
3
Ws5
Part C x 10 30)
Answer any three questions.
16. Point out and explain the principle of steps involved in
mechanical ball milling and mechano chemical process.
17. What is meant by self assembly? Explain the synthesis
and characteristics of self-assembled monolayers.
18. Write short note on Magnetic synthesing and CVD.
19. Biological methods are more preferred than chemical
methods to synthesise nanomaterials. Substantiate with
examples.
20. Discuss the principle of chemical analysis by fluorescence
and atomic spectroscopic techniques.
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