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‎SIXTH SEMESTER B.AJB.Sc. DEGREE EXAMIN ATION, MARCH 2020
(CUCBCSS—uG)
Chemistry
Time : Three H CHE 6B 10—ORGANIC CHEMISTRY-IIl
3 Maximum : 80 Mark«
Section A
Answer all questions.
Each question carries 1 mark.
Sketch the NMR spectrum of ethanol.

What is isoelectric point ?

What is Tollen’s reagent ?

Draw the structure of methandrostenolone.
State Isoprene rule.

Draw the structure of geraniole.

State the occurance of citral.

What are steroid hormones ? Give an example.

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Give the chemical names of vitamins A, B, and ‏و8‎ ನ

What are nucleosides and nucleotides ?

peat
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(10 x 1 = 10 marks)
Section B

Answer any ten questions.
Each question carries 2 marks.

11. What are the different steps in the biosymthesis of proteins ?
12. Write short note on nutarotation.

13. Write short note on strecker synthesis.

14. Discuss in detail - Denaturation of proteins.

15. Write short note on Killiani - Fischer synthesis.

16. What are the applications of carbohydrates.