GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-V (NEW) EXAMINATION - WINTER 2018
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Subject Code: 2153604
Subject Name: Technology of Intermediate & Colorants
Time: 10:30 AM TO 01:00 PM
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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| Q.1 | (a) How do you differentiate unit processes and unit operations in detail. | 03 |
| (b) Discuss about DVS ratio used in Nitration Reaction. | 04 | |
| (c) Discuss the best practices for following unit operations: (i) Isolation (ii) Blending (iii) Filtration (iv) Grinding | 07 | |
| Q.2 | (a) Write a note on: Ammonolysis. | 03 |
| (b) Discuss the Biazzi reactor with respect to hydrogenation technology. | 04 | |
| (c) Explain the Sulphonation Process Technology with suitable example. OR --- Content provided by FirstRanker.com --- Explain the Chlorination Process Technology with suitable process diagram. | 07 | |
| Q.3 | (a) Write a note on: Centrifuge filtration. | 03 |
| (b) Discuss the properties of evaporating liquid that influence the evaporation process. | 04 | |
| (c) Explain the stirring apparatus with its importance, uses & difficulties during different equipment used. OR Discuss the concept of bumping. | 07 | |
| Q.4 | (a) Write about agitation system and particle size reduction. | 03 |
| (b) Explain the batch and continuous process with respect to its advantages and disadvantages. | 04 | |
| (c) Write a note on: Green Solvents. | 07 | |
| Q.5 | (a) Discuss about 2-Napthol and its derivative. | 03 |
| (b) Explain the manufacturing process of BON acid with suitable reaction scheme. OR Give the synthesis of Napthol sulphonic acid. | 04 | |
| (c) How do you prepare aniline? Discuss it with reaction scheme. | 07 | |
| Q.6 | (a) Explain the manufacturing process of Phenol with suitable reaction scheme. | 03 |
| (b) Write down the fundamental consideration during the azo dyes preparation. | 04 | |
| (c) Discuss about fluorescent whiteners. | 07 | |
| Q.7 | (a) Explain the disperse dyeing technology over polyester fibres in details. --- Content provided by FirstRanker.com --- ORWrite down the importance of metal complex dyes. | 03 |
| (b) Give the synthesis of anthraquinone. | 04 | |
| (c) Explain the technology involved in synthesis of azo dyes in detail. | 07 |
Date: 20/11/2018
Total Marks: 70
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