Exam Details
| Subject | organic chemistry – i | |
| Paper | paper 2 | |
| Exam / Course | m.sc. chemistry | |
| Department | ||
| Organization | rayalaseema university | |
| Position | ||
| Exam Date | December, 2017 | |
| City, State | andhra pradesh, kurnool |
Question Paper
M.Sc. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2017.
First Semester
Chemistry
Paper II ORGANIC CHEMISTRY I
2 20112-A
Time 3 Hours Max. Marks 70
SECTION — A
Answer any FIVE questions. 6 30 Marks)
1. Explain about chiral center.
2. Explain dynamic enantiomerism.
3. Differentiate conformation and configerational isomerism
4. Explain diastereomers.
5. Explain Taft equation.
6. Explain crossed Aldol reaction.
7. Explain pyrolytic elimination.
8. Explain solvent effect on SN2 reaction.
SECTION — B
Answer ALL questions. 10 40 Marks)
9. Represent any two molecules having 2 chiral centers in wedge shape and
convert into fischer, saw-horse.
Or
Explain various symmetry operations, point group classification.
10. Explain alkyl ketone effects and conformations of dihalobutane, halohydein.
Or
Explain:
Repulsive interactions
Steric, stereo electronic factors.
11. Explain various factors effecting SN2 SN1 reactions.
Or
Explain E2-Syn and Anti eliminations with examples.
12. Explain:
Competitive reactions
Hammett equation.
Or
Explain Dobner, Dieckmann reaction.
———————
First Semester
Chemistry
Paper II ORGANIC CHEMISTRY I
2 20112-A
Time 3 Hours Max. Marks 70
SECTION — A
Answer any FIVE questions. 6 30 Marks)
1. Explain about chiral center.
2. Explain dynamic enantiomerism.
3. Differentiate conformation and configerational isomerism
4. Explain diastereomers.
5. Explain Taft equation.
6. Explain crossed Aldol reaction.
7. Explain pyrolytic elimination.
8. Explain solvent effect on SN2 reaction.
SECTION — B
Answer ALL questions. 10 40 Marks)
9. Represent any two molecules having 2 chiral centers in wedge shape and
convert into fischer, saw-horse.
Or
Explain various symmetry operations, point group classification.
10. Explain alkyl ketone effects and conformations of dihalobutane, halohydein.
Or
Explain:
Repulsive interactions
Steric, stereo electronic factors.
11. Explain various factors effecting SN2 SN1 reactions.
Or
Explain E2-Syn and Anti eliminations with examples.
12. Explain:
Competitive reactions
Hammett equation.
Or
Explain Dobner, Dieckmann reaction.
———————
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- advanced organic spectroscopy and nanomaterials
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- drug and medicinal chemistry
- immunology
- organic chemistry – i
- physical chemistry
- physical organic chemistry and green chemistry
- terpenoids, steroids, alkaloids and flavonoids