Gujarat Technological UniversitySummer 2026 examination

GTU 3130506 Applied Chemistry Summer 2026 Question Paper & PDF

B.E. · Chemical Engineering · Semester 3 · Subject code 3130506
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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.1

14 Marks
(a)
3 marks
Explain following terms: Inductive effect, Resonance, Free radicals.
(b)
4 marks
Write short notes on: Normality, Molality, Depression of freezing point, Osmosis.
(c)
7 marks

Write detailed reaction mechanism of Friedel Craft alkylation reaction with suitable example.

Q.2

14 Marks
(a)
3 marks

On the basis of your understandings, give details of utility or applications of applied chemistry in chemical industries.

(b)
4 marks

Write notes on: Geometrical Isomerism, Optical Isomerism, Conformational isomerism, E & Z isomer designations.

(c)
7 marks

Explain all terms associated with optical isomerism in details by taking the example of tartaric acid.

(c)
7 marks

Explain following with required equations: Heisenberg uncertainty principle, Shrodinger wave equation.

Q.3

14 Marks
(a)
3 marks
Elaborate following terms: Order of reaction, Molecularity, Rate law.
(b)
4 marks

Describe the importance of polymers, nanocomposites, zeolites and silicates with respect to engineering application.

(c)
7 marks

The rate law for the decomposition of N2O5 (l) is rate = k [N2O5] where k = 6.22X10⁻⁴ sec-1. Calculate half-life of N2O5 (l) and number of seconds it will take for an initial concentration of N2O5 (l) of 0.100 M to drop to 0.0100 M.

(a)
3 marks
What is Pseudo first order reaction, explain with one example.
(b)
4 marks

"Identification and characterization of any material/chemical is the key of its application/utilization." justify the statement with relevant facts and

(c)
7 marks

Derive the integrated rate law equation for first order reaction kinetics and units or rate constant for first and second order reactions.

Q.4

14 Marks
(a)
3 marks
Explain following terms: Phase, component, Degree of freedom.
(b)
4 marks
Write classification of refractories.
(c)
7 marks

Give details of two component eutectic system with the help of one example of your choice.

(a)
3 marks

Explain Following terms: Heat of neutralization, Heat of transition, Heat of combustion.

(b)
4 marks
Explain Classification of ceramics.
(c)
7 marks

What is phase rule? Explain in detail the one component system taking water as an example.

Q.5

14 Marks
(a)
3 marks
Write a short notes on applications of electronic spectroscopy.
(b)
4 marks
Explain surface characterization in brief and draw instrumentation diagram of TEM.
(c)
7 marks

Sandip synthesized nitro-benzene from benzene in applied chemistry laboratory. Suggest him the relevant spectroscopy (with approximate peak value) to analyse the mass, functional groups and absorption spectrum. Also draw the instrumentation diagram of mass spectroscopy.

(a)
3 marks
Explain following terms: Bathochromic shift, Hook's Law, Lambert's Beer Law.
(b)
4 marks

Purvi made some metal nanoparticles in applied chemistry laboratory. Name some techniques which can help in characterization of synthesised nanoparticles, also write principle of XRD.

(c)
7 marks

Identify the spectroscopy for exact structural determination of an organic compounds, draw it's instrumentation diagram and also explain it's working principle.

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About this paper

Official Gujarat Technological University (GTU) examination paper for Applied Chemistry (Summer 2026, 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.

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