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Gujarat Technological UniversitySummer 2024 Examination

GTU 3110001 Chemistry Summer 2024 Paper Solution & PDF

B.E. · Common Engineering · Semester 1 · Subject Code: 3110001
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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
Jump toQ1Q2Q3Q4Q5

Question 1

14 MarksMedium
(a)
Differentiate between addition and condensation polymerisation.
3 Marks
(b)

Explain the principle of UV-VIS spectroscopy and list down main components of UV-VIS spectrophotometer.

4 Marks
(c)

What is meant by hardness of water? what are the common units of measurement of hardness of water? Give relationship between various unit.

7 Marks

Question 2

14 MarksMedium
(a)

Draw a well labelled diagram of fractional distillation of crude petroleum showing its various fractions.

3 Marks
(b)
State Lambert and Beer’s law and deduce its mathematical expression.
4 Marks
(c)

Describe sacrificial anodic method for corrosion prevention with an example.

7 Marks
OR OPTION
(c)

What do you understand by electrochemical corrosion? Explain mechanism of electrochemical corrosion.

7 Marks

Question 3

14 MarksMedium
(a)
Outline the applications of nanotechnology in medicine.
3 Marks
(b)
Write a brief note on pH Meter.
4 Marks
(c)

Explain the suitable method to analyze the percentage of moisture, volatile matter and ash content in a coal sample.

7 Marks
OR OPTION
(a)

What are the effects of nanoscale dimension on mechanical and optical properties of material?

3 Marks
(b)
What is spectroscopy? Write the application of IR spectroscopy.
4 Marks
(c)
Write a note proximate and ultimate analysis of coal.
7 Marks

Question 4

14 MarksMedium
(a)
Define terms:
aElectron negativity b. Ionization enthalpy c. Electron affinity
3 Marks
(b)
What is an enzyme? Give its application in alcohol synthesis.
4 Marks
(c)

What is corrosion? Do you think rusting is electrochemical process? Justify with the help of involved redox reactions.

7 Marks
OR OPTION
(a)
Write a brief note on physical properties of metals.
3 Marks
(b)

Define terms: Covalent bond , Ionic bond, polar covalent bond, and non- polar covalent bond.

4 Marks
(c)
Explain the fermentation processes for preparation of Ethanol.
7 Marks

Question 5

14 MarksMedium
(a)
Distinguish between absorption and emission spectra.
3 Marks
(b)
What is vulcanization of Rubber? Why vulcanization is done?
4 Marks
(c)
Write short note on softening of hard water by Lime soda process.
7 Marks
OR OPTION
(a)
Give labelled schematic diagram for treatment of waste water.
3 Marks
(b)
What are alloys? Give example and explain why alloying is done?
4 Marks
(c)

Explain the preparation, properties and use of the following polymers:- (a) Buna-S rubber (b) Nylon 6:6

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 (Summer 2024, 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.

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