Q.1
14 Marks(a)
Discuss the reductive alkylation reaction of aniline
(b)
Discuss the oxidation of xylene
(c)
Write a note on friedel crafts alkylation reaction of benzene, benzoic acid and phenol
Gujarat Technological UniversitySummer 2025 examination
GTU 3140508 Unit Processes & Chemical Technology Summer 2025 Question Paper & PDF
B.E. · Chemical Engineering · Semester 4 · Subject code 3140508
- 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)
Write the reaction mechanism of nitration of benzene.
(b)
Discuss the chlorination of toluene and hydrogenation of nitrobenzene
(c)
Describe the process description of H2SO4 by DCDA process and discuss it major engineering problems
OR
(c)
Explain the manufacturing process of urea.
Q.3
14 Marks(a)
Differentiate the dye, paint and pigment
(b)
Write a note on dispersive reactive and azo dye
(c)
Discuss the manufacturing process of H-acid dye
OR
(a)
Explain the manufacturing process of aspirin
(b)
Discuss the classification of drug.
(c)
Discuss the manufacturing process of penicillin
Q.4
14 Marks(a)
Define cement and refractory and discuss the calcination of CaCO3
(b)
Write a note on setting and hardening of cement
(c)
Write a note on manufacturing process of cement.
OR
(a)
Define petroleum, paper and sugar.
(b)
Write a note on cracking of petroleum.
(c)
Define the fermentation and write a note on manufacturing process of alcohol
Q.5
14 Marks(a)
Write a note on process description of ammonia
(b)
Draw the schematic diagram of nitric acid production.
(c)
Discuss the hydrochloric acid leaching method for the production of phosphoric Acid.
OR
(a)
Discuss the chemical reaction of Kraft (Pulp) Process.
(b)
Write a note on LPG, Gasoline and Diesel.
(c)
Write a note on pigments.
More Unit Processes & Chemical Technology papers
Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.
Other Semester 4 subjects
BE Chemical
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About this paper
Official Gujarat Technological University (GTU) examination paper for Unit Processes & Chemical Technology (Summer 2025, B.E. · Chemical Engineering, Sem 4). 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.