Exam Details
Subject | organic spectroscopy | |
Paper | paper 1 | |
Exam / Course | m.sc in chemistry | |
Department | ||
Organization | rayalaseema university | |
Position | ||
Exam Date | December, 2017 | |
City, State | andhra pradesh, kurnool |
Question Paper
M.Sc. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2017.
Third Semester
Chemistry
ORGANIC SPECTROSCOPY
2 20131
Time 3 Hours Max. Marks 75
SECTION — A
Answer any FIVE questions. 5 25 Marks)
Each question carries 5 marks.
1. Explain the effect of solvent on electronic transitions.
2. Explain about absolute configuration.
3. Explain the principle of IR-Spectroscopy.
4. Compare IR and Raman spectroscopy.
5. Explain about spin decoupling.
6. Explain coupling constants.
7. Explain about isotopic abundance.
8. Explain base peak of amines.
SECTION — B
Answer ALL questions. 121/2 50 Marks)
9. What is circular dichroism, explain positive and negative cotton effects in detail
with examples.
Or
10. Explain various electronic transitions in ketones and give fieser rules for
unsaturated carbonyl compounds.
11. Explain instrumentation of IR-Spectroscopy and describe about overtones.
Or
12. Explain various factors effecting IR values and describe about FT-IR.
13. Explain shielding and deshielding effects.
Explain about J value for AMX, ABC.
Or
14. Explain about c13 NMR, Karplus curve.
Contact shift reagents.
15. Explain about single and double focusing mass spectophotometer.
Fragmentation in Aromatic nitro compounds.
Or
16. Explain
Meta stable ions, Nitrogen rule.
Molecular ion peak, base peak.
Third Semester
Chemistry
ORGANIC SPECTROSCOPY
2 20131
Time 3 Hours Max. Marks 75
SECTION — A
Answer any FIVE questions. 5 25 Marks)
Each question carries 5 marks.
1. Explain the effect of solvent on electronic transitions.
2. Explain about absolute configuration.
3. Explain the principle of IR-Spectroscopy.
4. Compare IR and Raman spectroscopy.
5. Explain about spin decoupling.
6. Explain coupling constants.
7. Explain about isotopic abundance.
8. Explain base peak of amines.
SECTION — B
Answer ALL questions. 121/2 50 Marks)
9. What is circular dichroism, explain positive and negative cotton effects in detail
with examples.
Or
10. Explain various electronic transitions in ketones and give fieser rules for
unsaturated carbonyl compounds.
11. Explain instrumentation of IR-Spectroscopy and describe about overtones.
Or
12. Explain various factors effecting IR values and describe about FT-IR.
13. Explain shielding and deshielding effects.
Explain about J value for AMX, ABC.
Or
14. Explain about c13 NMR, Karplus curve.
Contact shift reagents.
15. Explain about single and double focusing mass spectophotometer.
Fragmentation in Aromatic nitro compounds.
Or
16. Explain
Meta stable ions, Nitrogen rule.
Molecular ion peak, base peak.
Other Question Papers
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