Question 1
(a)
Define polar and nonpolar covalent bonds.
3 Marks
(b)
Differentiate between temporary and permanent hardness.
4 Marks
(c)
Explain Lime soda process with its advantages and disadvantages.
7 Marks
Gujarat Technological UniversityWinter 2023 Examination
GTU 3110001 Chemistry Winter 2023 Paper Solution & PDF
B.E. · Common Engineering · Semester 1 · Subject Code: 3110001
Total Marks70 MarksExternal theory exam
Passing Marks23 Marks33% minimum cutoff
Exam Duration2.5 Hours2:30 PM – 5:00 PM
Paper Structure5 QuestionsWith internal OR choices
Question 2
(a)
Discuss four important physical properties of metals.
3 Marks
(b)
Explain the shapes of s, p, d and f orbitals.
4 Marks
(c)
How will you protect metal from corrosion?? Explain wet corrosion mechanism.
7 Marks
OR OPTION
(c)
Explain hard soft acids and bases with their properties.
7 Marks
Question 3
(a)
What is nano material? Explain the term with historical aspect.
3 Marks
(b)
Write a short note on ‘top down’ and ‘bottom-up approach’ to synthesize Nanomaterials.
4 Marks
(c)
Define polymerization. Give major classification of polymers with suitable examples and applications.
7 Marks
OR OPTION
(a)
Define Stretching and bending vibration in IR spectroscopy.
3 Marks
(b)
Define pH. Calculate pH of 0.1 N HCl.
4 Marks
(c)
Explain the preparation, properties and any one specific use of the Nylon- 6,6 and Buna-S rubber.
7 Marks
Question 4
(a)
State important applications of nanomaterial in catalysis.
3 Marks
(b)
Discuss major disadvantages of using hard water in various industries.
4 Marks
(c)
Explain the IR spectroscopy with its application.
7 Marks
OR OPTION
(a)
What is a biofertilizer?
3 Marks
(b)
Explain Importance of Biofuels.
4 Marks
(c)
Define Fermentation. Explain manufacturing of Acetic acid by fermentation process.
7 Marks
Question 5
(a)
Define the following terms: Octane and Cetane Number
3 Marks
(b)
Discuss the Selection rules for UV-Visible spectroscopy.
4 Marks
(c)
What are bioreactors? Discuss the applications of biotechnology.
7 Marks
OR OPTION
(a)
Explain Liquid Crystals.
3 Marks
(b)
Write characteristics of a good fuel.
4 Marks
(c)
Give classification of fuel. Discuss proximate analysis of fuel.
7 Marks
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About this Examination Paper & Attribution
Official Gujarat Technological University (GTU) examination paper and step-by-step solutions for Chemistry (Winter 2023, B.E. · Common Engineering, Sem 1). 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.