M.Sc. DEGREE EXAMINATION, FEBRUARY 2018.
Fourth Semester
Organic Chemistry Natural Products
Paper I ADVANCED ORGANIC SPECTROSCOPY AND NANOMATERIALS
(Non CBCS Old Regulation)
2 20141
Time 3 Hours Max. Marks 75
PART — A
Answer any FIVE questions. 5 25 Marks)
1. Explain SFORD.
2. Explain about polarization transfer and signal enhancement.
3. Explain principle of APT.
4. Explain spin echo experiment.
5. Explain principle of 2-D NMR.
6. Explain TOCSY with an example.
7. Explain micro emulsion in brief.
8. Write a few important properties of nanomaterials.
PART — B
Answer ALL questions. 2
12 1 50 Marks)
9. Explain the factors affecting chemical shifts with examples.
Or
10. Explain homonuclear coupling with examples and write in detail about
applications of 13C-NMR.
11. Explain applications of INEPT and DEPT with examples.
Or
12. Explain the principle of INADEQUATE and application to geraniol.

13. Explain the use of HomoCosy and HeteroCOSY with suitable examples.
Or
14. Explain the use of HMQC and NOESY with suitable examples.
15. Explain about Co-precipitation Sol-gel synthesis.
Or
16. Explain about the instruments used for the characterization of nanomaterials and
mention any two or three important applications of nanomaterials.
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