GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University
Enrollment No.
BE - SEMESTER- V (New) EXAMINATION - WINTER 2019
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Subject Code: 2153604
Subject Name: Technology of Intermediate & Colorants
Time: 10:30 AM TO 01:00 PM
Date: 21/11/2019
Total Marks: 70
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
- (a) Write a note on: unit operation. MARKS 03
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(b) Discuss about pressure vessel used in industry. MARKS 04
(c) Explain the Process cooling/ Cooling water is used as an important utility used in chemical plants. MARKS 07 - (a) Write down the importance of DVS ratio in Nitration reaction. MARKS 03
(b) Discuss Nitration in organic solvents. MARKS 04
(c) Explain the aspects of unit operation with the help of fractional distillation. MARKS 07--- Content provided by FirstRanker.com ---
OR
Explain the vacuum distillation in detail. MARKS 07 - (a) Write down the concept Distilling Off Solvents. MARKS 03
(b) Discuss the mechanism of sulphonation reaction. MARKS 04
(c) Explain the hybrid drying techniques with suitable diagrammatical representation. MARKS 07--- Content provided by FirstRanker.com ---
OR
Write a note on: Filtration. MARKS 07 - (a) Discuss the effect of HNO; (Nitrous acid) on Nitration. MARKS 03
(b) Explain the Bechamp reduction reaction. MARKS 04
(c) How do you classify the isomers? MARKS 07 - (a) How do synthesized Phenol from/Cumene process. MARKS 03
(b) Give the synthesis of following: (i) Anthraquinone (ii) 2-napthol MARKS 04
OR
List out the important solvents used in dyestuffs & pigments industry. MARKS 07 - (a) Discuss about structural isomers. MARKS 03
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(b) Give the synthesis of following: (1) Phenol by Dow’s process (i1) Napthol sulphonic acid MARKS 04
Write down the properties and application of reactive dyes. MARKS 07 - (a) Discuss the concept of particle size reduction. MARKS 03
(b) Explain the layout of dye manufacturing plant. MARKS 04
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Write down the advantages & disadvantages of direct dyes. MARKS 07 - (a) Discuss the Halogenation reaction. MARKS 03
(b) Explain the technology involved in synthesis of disperse dyes in details. MARKS 04
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