Name of the University : Mahatma Gandhi University
Department : Chemistry
Degree : M.Sc. Analytical Chemistry
Subject Code/Name : AN3C10/CH3C10 Organic Syntheses
Sem : III
Website : mgu.ac.in
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/mgu.ac.in/5108-III%20AN.pdf
Organic Syntheses Question Paper :
(Common to M.Sc. Analytical Chemistry and Chemistry)
MODEL QUESTION PAPER :
Time: Three hours
Total Weights: 30
Related : MGU AN3C09/CH3C09/PO3C09 Structural Inorganic Chemistry M.Sc Model Question Paper : www.pdfquestion.in/5107.html
Section A :
(Answer any 10questions. Each question carries a weight of 1)
01. Give examples of chromium and manganese based oxidation of alcohols to carbonyl compounds.
02. Discuss any two methods for the synthesis of diols from alkenes using Osmium.
03. What is DIBAL-H? Give any two applications of DIBAL-H.
04. What is Nef reaction? Explain its mechanism.
05. Give the structures of NBS and DCC.
06. Give one method each for the synthesis of (a) Pyrrole (b) Imidazole (c) Oxazole.
07. What are the important amino protecting groups? What is the importance of amino protection in peptide synthesis?
08. What is Umpolung equivalence? Give one example.
09. What is meant by chemo and regio selective protection and deprotection?
10. Discuss the contraction and expansion of ring systems. Give an example of Demjenov reaction.
11. How can you synthesis Corey lactone by enantioselective method?
12. Give an example of Preterson olefination.
13. Explain the relative reactivity of pyrrole, furan, thiophene and imidazole.
(10×1=10 weights)
Section B :
(Answer any 5 questions. Each question carries a weight of 2)
14. Discuss the method of synthesis of epoxide from alkenes. Explain the mechanism of
(a) Sharpless asssymmetric epoxidation and (b) Shi epoxidation.
15. Write a note on Click reaction.
16. Explain the method of construction of macrocyclic rings by ring closing metathesis.
17. Discuss the mechanism and applications of inter and intra molecular ketene cycloaddition
18. How will you synthesize esters and lactones from ketones? Explain Baeyer-Villigar oxidation.
19. Write note on biomimetic synthesis of progesterone.
20. Briefly explain the basic principles for the biosynthesis of terpenes.
21. Explain the enantioselective synthesis of luciferin and longifolene.
(5×2=10 weights)
Section C :
(Answer any 2 questions. Each question carries a weight of 5)
22. Write an essay on the applications of the metal and non-metal based oxidations of
(a)alcohols and (b)alkenes in organic synthesis. Illustrate with examples.
23. Write an essay on metal mediated C-C and C-X coupling reactions with special reference
to (a) Suzuki coupling (b) Heck reaction (c) Suzuki-Miyaura coupling (d) Glaser coupling and (e) Nozaki-Hiyama reaction.
24. Discuss the basic principles of retero synthesis. Explain one group C-C and two group CC disconnections.
25. Write an essay on the role of protection, and deprotection in peptide synthesis. Illustrate with examples with special reference to SPPS method. Explain the mechanism. (2×5=10 weights)
Mahatma Gandhi University :
CBCSS, B.A/B Sc / B.Com Programmes 2011 :
Fifth Semester :
Open Course CH5D01.5: Chemistry in Everyday life
Model Question Paper :
Time : Three hours
Total weightage : 25
Section A :
(Answer all questions. Each bunch of four questions carries a weightage of 1)
I. Fill up the blanks
1. FPO means———–
2. Soft soap generally contains———–
3. Environmental problems arising from the use of plastics is due to their________
4. In anionic detergent the hydrophilic part is———– charged.
II 5. Write any one of the preservatives used in cosmetics.
6. Give the name of an analgesic.
7. Name an artificial sugar.
8. Give an example of a chromophoric group
III 9. Name a compound used as anti-oxidant for packed foods.
10. Give any one of the bulking agents used in cosmetics.
11. Give an example of a plant growth hormone
12. Mention the role of Parabens in cosmetics.
IV 13. Name a drug used or antifertility.
14. A soap to have the best cleansing action, it should contain —– carbon atoms.
15. Mention the ISO paper size for standard printing and stationary.
16. ———— is used as a preservative in dried fruits and nuts.
Section B : (Answer any 5 questions. Each carries a weightage of 1)
17. Name any four food safety acts in India.
18. Name two natural fibres. Mention their use.
19. What is paracetamol chemically? What is its use?
20. Differentiate between hard and soft detergents
21. What is the function of abrasive in tooth paste?
22. What are food preservatives? Give two examples.
23. What are the requisites of a dye?
24. Give an idea on Bio fertilizers.