Download GTU BE/B.Tech 2019 Summer 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 Summer 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 ? SUMMER 2019
Subject Code: 2130501 Date: 15/06/2019

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) Define the term: Stereoisomerism, Chiral Carbon, Optical activity. 03
(b) What is cracking? State its importance? Define Octane number &
cetane number.
04
(c) Explain with suitable example of SN
2
Reaction. 07

Q.2 (a) Write the derivatives of carboxylic acid. 03
(b) Explain Electrophillic addition reaction. 04
(c) Write a note on optical isomerism of lactic acid and tartaric acid. 07
OR
(c) Discuss the manufacturing of Nitrobenzene from benzene by
continuous nitration with fortified spent-acid process.
07
Q.3 (a) State nitrating agents and sulphonating agents. 03
(b) With reactions discuss the sulphonation of benzene. 04
(c) Explain the manufacturing process of Acetic acid. 07
OR
Q.3 (a) Give diazotization reaction along with its mechanism. 03
(b) Explain preparation of ?Synthetic Petrol? by Bergius method. 04
(c) Write in detail Howarth's synthesis, properties and use of
Naphthalene
07
Q.4 (a) Define the term : Free radical, electrophile and nucleophile. 03
(b) Discuss preparation, properties and uses of Pyrrrole. 04
(c) Give mechanism and application of Cannizzaro reaction and
Wolf-Kishner reaction.
07

OR
Q.4 (a) Give the synthesis and Uses of Sulphanilamide. 03
(b) What do you understand by isoeletric point of amino acids? Explain. 04
(c) Manufacturing of sucrose from sugar cane with flow diagram. 07
Q.5 (a) Discuss preparation, properties and uses of furan. 03
(b) What are ?-amino acids? Discuss any one method of preparation
for Glycine.
04
(c) Explain the classification of dyes on the basis of their Chemical
Constitution. Give the synthesis of Congo Red.
07
OR

Q.5 (a) Explain the Witt's theories to explain the colour concept. 03
(b) Write a note on Killiani fischer synthesis. 04
(c) Give the synthesis and application of Paracetamol and Chloroquine. 07

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