Download GTU BE/B.Tech 2019 Winter 3rd Sem New 2130501 Organic Chemistry And Unit Processes Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 3rd Sem New 2130501 Organic Chemistry And Unit Processes Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? III (New) EXAMINATION ? WINTER 2019
Subject Code: 2130501 Date: 7/12/2019

Subject Name: Organic Chemistry and Unit Processes
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.
************

MARKS

Q.1 (a) Explain Markovinkov?s rule 03
(b) Write the reaction mechanism of formation of Schiff base 04
(c) Describe the rules for R/S nomenclature 07

Q.2 (a) Write the synthesis of Furan and thiophen 03
(b) Why the racemic mixture is formed in the case of SN1 reaction. 04
(c) Give the two examples of nucleophile. Write note on
nucleophilic addition reaction
07
OR
(c) Write note on synthesis of antiseptics drug 07
Q.3 (a) Explain octane and cetane number 03
(b) Define specific rotation. Write note on polarimeter 04
(c) Describe the method for cane sugar from sugarcane 07
OR
Q.3 (a) Write method for synthesis of amide,anhydride,acidchloride and
ester from carboxylic acid
03
(b) Write the uses of protein 04
(c) Describe the elucidation process of ketohexoses 07
Q.4 (a) Write the applications of dyes 03
(b) Explain sulphonation of benzene, nitrobenzene and toluene 04
(c) Define isoelectronic point. Write note on secondary and tertiary
structure of protein.
07
OR
Q.4 (a) Why the aldohexoses reducing Fehling and tollens reagents 03
(b) Write the optical isomer of Malic acid and Tartic acid 04
(c) Write preparation method of congo red , malachite green and
crystal violet
07
Q.5 (a) Give the two name of reactions in which nitrene intermediate
was involved. Write the mechanism of one them
03
(b) Write note on classification of dyes bases on application 04
(c) Write a note on Baeyer and Hoffman reactions 07
OR
Q.5 (a) Give the classification of protein according to composition. 03
(b) Define chromophor and auxochrome and explain their
significant.
04
(c) Write the preparation method for formic acid and acetic acid 07
FirstRanker.com - FirstRanker's Choice