Total No. of Questions 12] [Total No. of Pages 03
M.Sc.(Second) DEGREE EXAMINATION, MAY 2017
(Second Year)
CHEMISTRY
Organic Chemistry
Time 3 Hours Maximum Marks 70
Section A
Answer any Four questions
(4× 7½ 30)
Q1) Write a note on Fieser-woodward rules for conjugated dienes.
Q2) Describe effect of hydrogen bonding in IR spectroscopy.
Q3) Explain nuclear over Hauser effect with an example.
Q4) Write about factor's affecting fragmentation in mass spectroscopy.
Q5) Explain photo chemistry conjugated olefins.
Q6) Briefly explain methods of analysis in pericyclic reactions.
Q7) Explain isolation to terpeneol.
Q8) Write the mechanism and migratory aptitude of Beckmann rearrangement.
Unit III
Q11) Explain Norrish-I and Norrish-II reactions.
OR
Sketch the correlation diagrams for 4n electron of a system under thermal and
photochemical conditions.
Unit IV
Q12) Illucidate the structure and synthesis of morphine.
OR
Explain the following
Wagner-Meerwin rearrangement
ii) Neber rearrangement