Q.1
14 Marks(a)
Define Viscosity and Normality.
(b)
Explain the importance of zeolites in catalysis.
(c)
Differentiate between SN and SE reactions. Give one example of each.
Gujarat Technological UniversitySummer 2025 examination
GTU 3130506 Applied Chemistry Summer 2025 Question Paper & PDF
B.E. · Chemical Engineering · Semester 3 · Subject code 3130506
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Explain resonance effect with example.
(b)
Explain Beer-Lambert law.
(c)
Draw the phase diagram of water and describe in detail.
OR
(c)
Derive the expression for half-life period of the first order reactions.
Q.3
14 Marks(a)
How the nematic phase differ from smectic phase.
(b)
Suggest a method for resolution of racemic mixture of a base.
(c)
What is chirality? Explain the optical isomerism in tartaric acid.
OR
(a)
List the characteristics of refractories.
(b)
Draw molecular orbital diagram of the N2 molecule.
(c)
Predict the shape of H2O and XeF4 with the help of VSEPR theory.
Q.4
14 Marks(a)
State basic principle of Mass spectroscopy.
(b)
Describe the Hess’s Law of constant heat summation with example.
(c)
Explain principle, working and applications of the TEM.
OR
(a)
Calculate the mole fraction of ethylene glycol (MW=62), if its 3.1 g is dissolved in 18 g of water.
(b)
Enthalpy of combustion of carbon to carbon dioxide is –393.5 J/mol. Calculate the heat released upon formation of 44 g of CO2 from carbon and oxygen gas.
(c)
Explain working principle of XRD. List its applications in the chemistry.
Q.5
14 Marks(a)
Draw structure of R and S isomers of lactic acid.
(b)
Explain the stability order of 1°, 2° and 3° carbocation and carbanion species.
(c)
Explain: (a) Molecularity of reaction. (b) Glass transition temperature
OR
(a)
What is Nanocomposite materials?
(b)
Explain specific rotation.
(c)
Derive Schrödinger wave equation and explain the importance of ψ.
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About this paper
Official Gujarat Technological University (GTU) examination paper for Applied Chemistry (Summer 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.