Solved question paper for CHEMISTRY Dec-2011 (B-TECH 1st-2nd)
Solved Question Paper
Engineering chemistry Dec-2011
PTU • B-TECH • Information Technology • 1st-2nd • Dec-2011
engineering chemistry previous year question papers on BRpaper are organized for students of Punjab Technical University’s Bachelor of Technology program, 1st-2nd semester. This section makes it easier to browse subject-wise old question papers for engineering chemistry, so students can review how questions are typically framed in past exams and get a sense of the exam pattern. Many students search for engineering chemistry previous year question paper while preparing for exams, and this page is built to support exactly that kind of subject-wise browsing and revision. BRpaper is not the official website of Punjab Technical University or any institution, and it does not publish official notices or academic updates.
PART A
1. Spectroscopy and its Applications:
An introduction UV/Visible Spectroscopy: Selection rules; Line widths and intensity of spectral lines; Principle and instrumentation; Electronic Transitions; Chromophores & auxochromes; Factors affecting λMax & intensity of spectral lines; Franck-Condon principle; Applications. IR Spectroscopy: Principle and instrumentation; Vibrational frequency; Fundamental modes of vibrations and types; Anharmonics; Factors affecting vibrational frequency; Applications. NMR Spectroscopy: Principle & instrumentation; Chemical shift; Spin-Spin Splitting; High-resolution NMR spectrum (PMR only). (7)
2. Photochemistry:
Introduction; Photo-physical & photochemical processes; Light sources in photochemistry; Beer-Lambert Law; Laws of Photochemistry; Quantum yield (primary and overall); Primary and secondary photochemical reactions; Jablonski diagram; Semiconductor photochemistry, Photovoltaic cells, Introduction to optical sensors, Introduction to supra-molecular photochemistry. (5)
3. Water and its Treatment:
Boiler feed water: Specification, Scales and sludge fermentation; Priming & foaming; Different methods of the water purifications and softening; Desalination of water; Water for domestic use: Specification; Disinfection of water.
4. Green Chemistry and its Applications:
Introductory overview - Definition and concepts of Green chemistry; Emergence of Green chemistry; Twelve principles of Green Chemistry with emphasis on the use of alternative feedstock (biofuels); Use of innocuous reagents in natural processes; Alternative solvents; Design of the safer chemicals; Designing alternative reaction methodology. Microwave and ultrasonic radiation in Green synthesis - Minimizing energy consumption. (4)
PART B
5. Corrosion and its Prevention:
Introduction; Different types of corrosion - Wet and Dry corrosion; Different types of surface films; Mechanisms of wet corrosion; Galvanic corrosion; Galvanic Series; Concentration cell corrosion and differential aeration corrosion; Soil and microbial corrosions; waterline, stress corrosions; Various methods of corrosion control. (5)
6. Polymers and Reinforced Composites:
Introduction; Functionality; Types of polymerization; Specific features of polymers; Structures - regularity and irregularity; Tacticity of polymers; Average molecular weights and size; Determination of molecular weight by number average method; Effect of molecular weight on the properties of polymers; Introduction to polymer reinforced composite. (5)
7. Nanochemistry:
Introduction; Materials self-assembly; Molecular vs. materials self-assembly; Self-assembling materials; Two-dimensional assemblies; Mesoscale self-assembly; Coercing colloids; Nanocrystals; Supramolecular structures; Nanoscale materials; Future perspectives. (5)
8. Petrochemicals:
Introduction; First, second & third generation petrochemicals; Primary Raw Materials for Petrochemicals. Natural gas: Natural gas treatment processes; Natural gas liquids; Properties of natural gas; Crude oil: Composition of crude oil- Hydrocarbon compounds; Non-hydrocarbon compounds; Metallic Compounds, Crude oil classification; Physical separation processes; Conversion processes; Production of ethylene and propylene
Solved Questions
Solved-
How the use of ultrasonic radiation can help in green syntheses?Short Answer 2 Marks Dec-2011 • PTU B-TECH
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May 2022 How can the ultrasonic radiations be used to carry out the green chemical synthesis? Explain by taking a suitable example.
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May 2019 Write about ultrasonic radiations in Green synthesis with examples.
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Dec 2019 Describe ultrasonication and microwave irradiation in Green synthesis with suitable examples.
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A copper equipment should not possess a small steel bolt. Explain.Short Answer 2 Marks Dec-2011 • PTU B-TECH
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What are third generation petrochemicals?Short Answer 2 Marks Dec-2011 • PTU B-TECH
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May 2023 a) Discuss the first, second and third generation petrochemicals.
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Dec 2023 What do you mean by first generation petrochemicals?
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May 2018
What are petrochemicals?
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Dec 2017
What is meant by first, second and third generation petrochemicals?
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Dec 2016 What are third generation petrochemicals?
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May 2014 Discuss various generations of petrochemicals.
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What is standard hard water?Short Answer 2 Marks Dec-2011 • PTU B-TECH
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May 2018
What is standard hard Water?
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May 2016 How will distinguish chemically between soft and hard water?
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May 2016 What are the major disadvantages of hard water when used for domestic purposes?
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May 2016 What are the major disadvantages of hard water when used for industrial purposes?
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May 2014 What is soft water? Where is it required?
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May 2013 What is standard hard water?
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May 2007 What is demineralized water? How is it different from soft water?
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Dec 2006 What is demenralised water? How is it different from soft water?
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Dec 2005 What is demineralized water? How is it different from soft water?
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What is meant by polymerization?Short Answer 2 Marks Dec-2011 • PTU B-TECH
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May 2023 a) What are different types of polymerization reactions? Give examples
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May 2020 What are different types of polymerization reactions? Give examples.
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May 2016 What is polymerization?
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May 2015 What is Polymerization? Discuss various types of polymerization.
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May 2014 What is polymerization? Describe the types of polymerization.
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May 2012 What is polymerization? Discuss its types.
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State Beer–Lambert law.Short Answer 2 Marks Dec-2011 • PTU B-TECH
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May 2020 State Beer-Lambert Law.
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How scale formation in boilers can be prevented?Short Answer 2 Marks Dec-2011 • PTU B-TECH
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Dec 2005 How scales are formed in boilers?
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Hydrogen chloride can undergo stretching vibration only, while carbon dioxide can undergo stretching and bending vibrations. Explain.Short Answer 2 Marks Dec-2011 • PTU B-TECH
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May 2018
Carbon dioxide can undergo stretching as well as bending vibrations whereas HCI can
\r\nundergo stretching only Explain.
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What is nanochemistry?Short Answer 2 Marks Dec-2011 • PTU B-TECH
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Dec 2018 Define nanochemistry.
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May 2017
What is nanochemistry?
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Dec 2016 Explain nanochemistry.
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What is meant by shielding and deshielding of a proton nucleus?Short Answer 2 Marks Dec-2011 • PTU B-TECH
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May 2011 Explain shielding and deshielding of protons.
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Discuss the principle of UV/Visible spectroscopy.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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May 2017
Explain the selection rules of UV-vis Spectroscopy.
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Dec 2016 What is ultraviolet and visible spectroscopy known as?
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May 2014 What information can be obtained from the UV-Vis spectrum?
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Dec 2014 Explain the selection rules of UV-vis spectroscopy.
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Dec 2014 Explain the selection rule of UV-vis Spectroscopy.
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May 2012 Explain the uses of UV-visible spectroscopy.
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Dec 2012 Describe the principle of UV-Vis spectroscopy.
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Dec 2011 Discuss theory of UV-visible spectroscopy.
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Dec 2010 Discuss the theory of UV-visible spectroscopy.
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May 2005 What do you understand by UV spectroscopy?
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Draw and explain 1H NMR spectrum pattern for Cl2CH-CHCl-CHCl2.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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Draw well labeled Jablonski diagram. Discuss non-radiative transitions.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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Describe photovoltaic cells.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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May 2023 Write a detailed note on the construction, working and chemistry behind the photovoltaic cell.
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Dec 2018 What is photovoltaic cell?
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Dec 2017
Write a detailed note on construction, working and chemistry behind photovoltaic cell.
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May 2014 Explain photovoltaic cells.
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What are the disadvantages of sludge formation? How it can be prevented?Long Answer 8 Marks Dec-2011 • PTU B-TECH
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Discuss hot lime soda process for softening of water. What are its advantages and disadvantages?Long Answer 8 Marks Dec-2011 • PTU B-TECH
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May 2015 Discuss hot lime soda process of water softening.
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May 2014 Discuss the hot lime-soda process for softening of water.
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May 2013 Discuss Lime-soda process for water softening.
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May 2012 Discuss hot lime soda process of water softening.
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May 2012 Discuss hot lime soda process of water softening.
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Define Green Chemistry.Short Answer 8 Marks Dec-2011 • PTU B-TECH
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Dec 2023 Define Green chemistry.
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May 2020 Explain any two principles of Green Chemistry with the help of examples.
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May 2019 Write in brief about emergence of Green Chemistry.
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May 2017
Define Green Chemistry. What are its applications?
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May 2016 Define Green Chemistry. Explain the differences between traditional approach to reduce pollution and the Green chemistry approach.
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May 2015 What do you mean by green chemistry? Briefly explain atom economy.
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Dec 2014 Explain any three principles of green chemistry with examples.
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May 2013 Explain Green chemistry and its concepts.
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May 2012 What is Green Chemistry? Why is it called so?
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What do you understand by atom economy?Short Answer 8 Marks Dec-2011 • PTU B-TECH
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May 2018
What is % atom economy?
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Explain the design of safer chemicals by giving examples.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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May 2019 Describe designing of safer chemicals with an example being used on commercial scale.
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May 2014 Elaborate the concept of design of safer chemicals with suitable example.
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Discuss mechanism of wet corrosion.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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May 2020 Explain the mechanism of galvanic corrosion.
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May 2020 Explain the mechanism of wet corrosion.
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May 2019 Discuss the chemistry and mechanism of wet corrosion.
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Dec 2018 Discuss the mechanism of wet corrosion.
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Dec 2017
Explain the mechanism of electrochemical corrosion with example.
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May 2016 What is corrosion? Explain electrochemical theory of corrosion.
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May 2016 Explain differential metal corrosion.
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Dec 2016 Explain differential aeration corrosion.
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Dec 2016 Give the cause of corrosion.
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May 2015 Explain waterline corrosion.
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May 2015 Explain stress corrosion.
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May 2015 Explain the mechanism of electrochemical corrosion.
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Dec 2015 Describe sacrificial anodic method for corrosion prevention with an example.
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May 2014 Define corrosion. Discuss the mechanism of wet corrosion.
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May 2012 Explain the mechanism of wet corrosion.
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Dec 2012 Describe the mechanism of electrochemical corrosion.
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Dec 2012 Explain dry corrosion.
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Dec 2012 Describe the mechanism of electrochemical corrosion.
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May 2011 Discuss the mechanism of wet corrosion.
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May 2008 What is corrosion of metals? Explain electro-chemical corrosion with its mechanism.
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Dec 2008 Explain the type of corrosion with evolution of hydrogen ions.
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May 2007 Discuss briefly: Galvanic corrosion
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Dec 2007 Explain briefly galvanic cell corrosion.
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Dec 2007 Explain briefly pitting corrosion.
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Dec 2006 Discuss briefly Galvanic corrosion.
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What do you understand by corrosion and stress corrosion?Long Answer 8 Marks Dec-2011 • PTU B-TECH
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Dec 2018 What is waterline corrosion?
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Dec 2016 What is waterline corrosion?
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May 2015 What is Corrosion? Discuss the factors affecting corrosion.
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May 2013 What is differential air corrosion?
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May 2013 What do you understand by stress corrosion? Explain.
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May 2013 What is wet corrosion?
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May 2013 What are the factors which affect corrosion?
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May 2012 What do you understand by Galvanic corrosion?
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May 2012 What is galvanic corrosion?
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May 2011 What is wet corrosion?
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Dec 2010 What is dry corrosion?
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Dec 2010 What do you understand by wet corrosion?
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What types of intermolecular bonds are present in polymers? Explain.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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What do you understand by tacticity in polymers? Explain different types.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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Dec 2023 Explain the Tacticity of Polymers.
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Dec 2018 What do you understand by tacticity? How can it affect the properties of polymers?
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Dec 2017
What is meant by tacticity of polymers?
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May 2016 How polymers are classified on the basis of tacticity?
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Dec 2016 What do you understand by tacticity? How it can affect the properties of polymers?
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May 2015 What are atactic polymers?
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What do you understand by two dimensional assemblies?Short Answer 8 Marks Dec-2011 • PTU B-TECH
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Explain supramolecular structures.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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May 2017
What are supramolecular structures? Discuss their properties.
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Dec 2017
Discuss about supramolecular structures.
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May 2015 Explain super molecular structures.
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May 2014 Explain supramolecular structures. Give applications of materials having supramolecular structures.
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Dec 2012 Discuss supramolecular structures.
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Discuss natural gas. Discuss its treatment processes.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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Dec 2023 Explain the Natural Gas treatment Processes.
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Dec 2019 Discuss in detail the natural gas treatment processes and conversion processes.
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May 2016 Discuss briefly the natural gas treatment processes. Illustrate with the help of diagram.
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Dec 2016 Explain natural gas treatment processes.
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May 2013 Explain natural gas treatment processes.
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Discuss the production of ethylene and propylene.Long Answer 8 Marks Dec-2011 • PTU B-TECH
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May 2017
Discuss in details all the aspects including chemistry of production of ethylene and
\r\npropylene. -
May 2016 Discuss cracking for the production of ethylene.
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May 2016 Discuss purification for the production of ethylene.
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May 2014 Discuss the production of ethylene. Give its use.
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Dec 2014 Discuss in detail the production process of ethylene.
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Dec 2014 Discuss in detail the production process of propylene.
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May 2013 Discuss the production of propylene.
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FAQ
Frequently Asked Questions
Answers about this subject, solved papers, and preparation.
01 Where can I find engineering chemistry previous year question papers for Bachelor of Technology, 1st-2nd semester?
This page lists engineering chemistry question papers uploaded for Punjab Technical University Bachelor of Technology, 1st-2nd semester, organized for subject-wise browsing where available.
02 Are these official Punjab Technical University question papers?
BRpaper is not the official website of Punjab Technical University. These papers are shared for reference and revision purposes only and are not official university material.
03 How can previous year engineering chemistry papers help in exam preparation?
Reviewing past papers can help you understand how questions are typically framed, notice commonly repeated topics, and get a sense of the exam pattern before your own exam.
04 What kind of topics does engineering chemistry usually cover?
The question papers here relate to the official engineering chemistry syllabus set by the university for this course and semester.
05 Does this page include a engineering chemistry previous year question paper or solved answers?
This page focuses on providing access to the previous year question papers themselves. A separate question bank or solved answers may not be available for every paper.
06 Can I find papers for other subjects in the same Bachelor of Technology?
Yes, BRpaper organizes papers by university, course, stream, and semester, so you can browse other subjects within the same Punjab Technical University Bachelor of Technology.