Q.1
14 Marks(a)
Distinguish between the unit operation and unit process with examples.
(b)
Write the environmental issues in chemical manufacturing process.
(c)
Describe the contact process for manufacture of sulfuric acid with flow sheet diagram.
Gujarat Technological UniversityWinter 2025 examination
GTU BE03005021 Chemical Process Technology Winter 2025 Question Paper & PDF
B.E. · Chemical Engineering · Semester 3 · Subject code BE03005021
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 10:30 AM – 1:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Give the classification of dyes.
(b)
Enlist the major engineering problems of sulfur production by oxidation reduction of H2S.
(c)
Explain the preparation of nitric acid by ammonia oxidation process with all chemical reactions involve in it.
OR
(c)
Provide flow diagram and reactions required in the manufacturing of urea from ammonia and CO₂.
Q.3
14 Marks(a)
What is NPK fertilizer? Why NPK fertilizers are used?
(b)
List out the advantages and disadvantages of mercury process and diaphragm process.
(c)
Explain the preparation of sodium bicarbonate using Solvay process with flow diagram.
OR
(a)
Define PVC of paints. What is its significance?
(b)
Define pigment. Give the list of different types of pigments.
(c)
Explain manufacturing process of H- acid with the help of diagram.
Q.4
14 Marks(a)
What are drugs? Write the types of drugs.
(b)
Explain the manufacturing process of Vitamin-C (Ascorbic acid).
(c)
Explain the soap manufacturing process in detail.
OR
(a)
Define antibiotics and give two examples.
(b)
List out the major vitamins and their sources.
(c)
Describe the complete manufacturing process of penicillin with a labelled flow diagram.
Q.5
14 Marks(a)
Define citric acid and give one industrial application.
(b)
Enlist the major engineering problems of sugar production by sugar cane.
(c)
Explain the complete manufacturing process of cane sugar with a labelled flow chart.
OR
(a)
Give the various chemical reaction for setting and hardening of cement.
(b)
Explain the basic chemistry of ceramic materials.
(c)
Describe the pulp manufacturing by Kraft process. Also list out the major engineering problems.
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About this paper
Official Gujarat Technological University (GTU) examination paper for Chemical Process Technology (Winter 2025, B.E. · Chemical Engineering, Sem 3). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.