M.Sc. DEGREE EXAMINATION, NOVEMBER 2017.
First Semester
Bioinformatics
Elective I GENERAL CHEMISTRY
(CBCS 2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Mention any two aromatic acids and two aromatic amino
acids.
2. What are annulenes?
3. What is Racemic modification?
4. Define a ''Leaving group''.
5. Mention two examples for Lewis acids.
6. How bond restricts free rotation?
7. What are quantum dots?
8. Why fats are water insoluble?
9. Mention any four metal ions frequently observed in
biomacro molecules.
10. Expand DTA and TG.
Sub. Code
502501
RW-848
2
Ws9
Part B x 5 25)
Answer all questions, choosing either or
11. What are products formed when aldehydes and
ketones are oxidized?
Or
Explain Huckel's rule with example.
12. Discuss about neighbouring group participation.
Or
Explain the mechanism of a SE1 reaction.
13. What is an hydrogen bond and brief about ideal
geometric parameters of hydrogen bond.
Or
Using molecular orbital theory, explain insulator
and semi conductors.
14. How are polymers classified and explain each one.
Or
What is the significance of surface to volume ratio?
15. Explain biological functions of coenzyme A.
Or
Draw the schematic representation of a UV-vis
spectometer.
RW-848
3
Ws9
Part C x 10 30)
Answer any three questions.
16. Explain the structures of pyrrole, indole, furan and
thiophene.
17. Describe the SN1 reaction mechanism and discuss about
carbonium ion.
18. Elaborate Arrhenius theory in detail to describe acids
and bases with examples.
19. With examples, explain preparation and uses of
pharmaceutical polymers.
20. Discuss about active site architectures of ferredoxin and
cytochromes.
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