Download GTU BE/B.Tech 2019 Winter 5th Sem New 2153604 Technology Of Intermediate And Colorants Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 5th Sem New 2153604 Technology Of Intermediate And Colorants Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? V (New) EXAMINATION ? WINTER 2019
Subject Code: 2153604 Date: 21/11/2019

Subject Name: Technology of Intermediate & Colorants
Time: 10:30 AM TO 01:00 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) Write a note on: unit operation. 03
(b) Discuss about pressure vessel used in industry. 04
(c) Explain the Process cooling/ Cooling water is used as an important
utility used in chemical plants.
07

Q.2 (a) Write down the importance of DVS ratio in Nitration reaction. 03
(b) Discuss Nitration in organic solvents. 04
(c) Explain the aspects of unit operation with the help of fractional
distillation.
07
OR
(c) Explain the vacuum distillation in detail. 07
Q.3 (a) Write down the concept Distilling Off Solvents. 03
(b) Discuss the mechanism of sulphonation reaction. 04
(c) Explain the hybrid drying techniques with suitable diagrammatical
representation.
07
OR
Q.3 (a) Write a note on: Filtration. 03
(b) Discuss the effect of HNO2 (Nitrous acid) on Nitration. 04
(c) Explain the Bechamp reduction reaction. 07
Q.4 (a) How do you classify the isomers? 03
(b) How do synthesized Phenol from Cumene process. 04
(c) Give the synthesis of following:
(i) Anthraquinone (ii) 2-napthol
07
OR
Q.4 (a) List out the important solvents used in dyestuffs & pigments industry. 03
(b) Discuss about structural isomers. 04
(c) Give the synthesis of following:
(i) Phenol by Do w? s process (ii) Napthol sulphonic acid
07
Q.5 (a) Write down the properties and application of reactive dyes. 03
(b) Discuss the concept of particle size reduction. 04
(c) Explain the layout of dye manufacturing plant. 07
OR

Q.5 (a) Write down the advantages & disadvantages of direct dyes. 03
(b) Discuss the Halogenation reaction. 04
(c) Explain the technology involved in synthesis of disperse dyes in details. 07
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