Solved question paper for CHEMISTRY May-2016 (B-TECH 1st-2nd)
Solved Question Paper
Engineering chemistry May-2016
PTU • B-TECH • Information Technology • 1st-2nd • May-2016
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-
Why should the presence of CO2 be avoided in boiler feed water?Short Answer 2 Marks May-2016 • PTU B-TECH
-
May 2015 CO2 should not be present in boiler feed water. Why?
-
-
What do you understand by number average molecular weight of polymer?Short Answer 2 Marks May-2016 • PTU B-TECH
-
May 2014 How the number average molecular weight of the polymer can be determined?
-
Dec 2012 How the molecular weight of polymer can be determined by number average method?
-
-
What are petrochemicals? What are the primary raw materials for petrochemicals?Short Answer 2 Marks May-2016 • PTU B-TECH
-
May 2023 Write briefly: i) What type of primary raw material is used for petrochemicals?
-
Dec 2018 What can be made from petrochemicals?
-
May 2017
What are the primary raw materials for petrochemical industry? How can the primary raw material be converted to usable secondary and tertiary petrochemical products?
-
-
Methanol is a good solvent for UV but not for IR studies. Why?Short Answer 2 Marks May-2016 • PTU B-TECH
-
Explain phosphorescence.Short Answer 2 Marks May-2016 • PTU B-TECH
-
Dec 2014 Explain phosphorescence.
-
Dec 2014 Explain phosphorescence.
-
Dec 2012 Explain fluorescence.
-
-
What are ionic liquids?Short Answer 2 Marks May-2016 • PTU B-TECH
-
What do you understand by functionality in polymer chemistry?Short Answer 2 Marks May-2016 • PTU B-TECH
-
May 2014 What do you understand by functionality in polymer chemistry?
-
-
Define nanoscience.Short Answer 2 Marks May-2016 • PTU B-TECH
-
Distinguish between priming and forming.Short Answer 2 Marks May-2016 • PTU B-TECH
-
Compare dry and wet corrosion.Short Answer 2 Marks May-2016 • PTU B-TECH
-
May 2019 Give one main point of difference between wet and dry corrosion.
-
May 2019 Differentiate between concentration cell corrosion and differential aeration corrosion.
-
May 2017
Differentiate between dry and wet corrosion.
-
May 2014 Differentiate wet corrosion from dry corrosion.
-
-
What are different kinds of electronic transitions? Explain each type with suitable examples.Long Answer 4 Marks May-2016 • PTU B-TECH
-
May 2010 What are different kinds of electronic transitions?
-
May 2008 What are different kinds of electronic transitions? Explain with examples (molecules that show these transitions).
-
-
Explain the principle of nuclear magnetic resonance spectroscopy.Long Answer 4 Marks May-2016 • PTU B-TECH
-
Dec 2016 Discuss the principle of NMR spectroscopy.
-
Dec 2016 What is NMR and MRS?
-
May 2015 Discuss the principles of NMR.
-
Dec 2015 What is chemical shift in NMR?
-
May 2014 Explain the principle of NMR spectroscopy.
-
Dec 2014 Explain principles of NMR Spectroscopy.
-
Dec 2012 Explain spin-spin splitting in NMR.
-
Dec 2012 Explain the principle of NMR.
-
Dec 2011 What information is obtained from spin-spin splitting in NMR?
-
Dec 2008 Explain the shielding and deshielding process in NMR-spectroscopy with some suitable examples.
-
May 2005 In relation to NMR spectra, explain Chemical Shift and TMS.
-
May 2005 In relation to NMR spectra, explain Shielding and Deshielding.
-
Dec 2005 What do you understand by NMR spectroscopy?
-
-
Define Beer-Lambert’s law. What are its limitations?Long Answer 4 Marks May-2016 • PTU B-TECH
-
May 2022 What is Lambert-Beer’s Law?
-
Dec 2018 Define Beer-Lambert law. Derive the equation.
-
Dec 2016 Define Beer-Lambert law. Derive the equation.
-
May 2014 Define and explain Grotthus-Draper law and Lambert-Beer law.
-
Dec 2014 Explain Beer-Lambert Law.
-
Dec 2014 Explain Beer-Lambert Law.
-
Dec 2012 Define Lambert-Beer law.
-
Dec 2005 Explain Beer-Lambert Law.
-
-
A substance when dissolved in water at 10–3 M concentration absorbs 10% of the incident radiation in a path of 1 cm length. What should be the concentration of the solution in order to absorb 80% of the same radiation?Short Answer 4 Marks May-2016 • PTU B-TECH
-
Dec 2007 A substance when dissolved in water at 10^-3 M concentration absorbs 10 percent of an incident radiation in a path of 1 cm length. What should be the concentration of the solution in order to absorb 90 percent of the same radiation?
-
-
What are the major disadvantages of hard water when used for domestic purposes?Short Answer 4 Marks May-2016 • PTU B-TECH
-
May 2018
What is standard hard Water?
-
May 2016 How will distinguish chemically between soft and hard water?
-
May 2016 What are the major disadvantages of hard water when used for industrial purposes?
-
May 2014 What is soft water? Where is it required?
-
May 2013 What is standard hard water?
-
Dec 2011 What is standard hard water?
-
May 2007 What is demineralized water? How is it different from soft water?
-
Dec 2006 What is demenralised water? How is it different from soft water?
-
Dec 2005 What is demineralized water? How is it different from soft water?
-
-
What are the major disadvantages of hard water when used for industrial purposes?Short Answer 4 Marks May-2016 • PTU B-TECH
-
May 2018
What is standard hard Water?
-
May 2016 How will distinguish chemically between soft and hard water?
-
May 2016 What are the major disadvantages of hard water when used for domestic purposes?
-
May 2014 What is soft water? Where is it required?
-
May 2013 What is standard hard water?
-
Dec 2011 What is standard hard water?
-
May 2007 What is demineralized water? How is it different from soft water?
-
Dec 2006 What is demenralised water? How is it different from soft water?
-
Dec 2005 What is demineralized water? How is it different from soft water?
-
-
What are the major disadvantages of hard water when used for steam generation in boilers?Short Answer 4 Marks May-2016 • PTU B-TECH
-
Dec 2023 What are the disadvantages of using hard water in boilers? Give an account of boiler trouble.
-
-
How is water disinfected by chlorination?Short Answer 4 Marks May-2016 • PTU B-TECH
-
Define Green Chemistry. Explain the differences between traditional approach to reduce pollution and the Green chemistry approach.Long Answer 4 Marks May-2016 • PTU B-TECH
-
Dec 2023 Define Green chemistry.
-
May 2020 Explain any two principles of Green Chemistry with the help of examples.
-
May 2019 Write in brief about emergence of Green Chemistry.
-
May 2017
Define Green Chemistry. What are its applications?
-
May 2015 What do you mean by green chemistry? Briefly explain atom economy.
-
Dec 2014 Explain any three principles of green chemistry with examples.
-
May 2013 Explain Green chemistry and its concepts.
-
May 2012 What is Green Chemistry? Why is it called so?
-
Dec 2011 Define Green Chemistry.
-
-
Explain usefulness of supercritical CO2 as an alternative solvent with examples.Short Answer 4 Marks May-2016 • PTU B-TECH
-
Explain usefulness of water as an alternative solvent with examples.Short Answer 4 Marks May-2016 • PTU B-TECH
-
What is corrosion? Explain electrochemical theory of corrosion.Long Answer 4 Marks May-2016 • PTU B-TECH
-
May 2020 Explain the mechanism of galvanic corrosion.
-
May 2020 Explain the mechanism of wet corrosion.
-
May 2019 Discuss the chemistry and mechanism of wet corrosion.
-
Dec 2018 Discuss the mechanism of wet corrosion.
-
Dec 2017
Explain the mechanism of electrochemical corrosion with example.
-
May 2016 Explain differential metal corrosion.
-
Dec 2016 Explain differential aeration corrosion.
-
Dec 2016 Give the cause of corrosion.
-
May 2015 Explain waterline corrosion.
-
May 2015 Explain stress corrosion.
-
May 2015 Explain the mechanism of electrochemical corrosion.
-
Dec 2015 Describe sacrificial anodic method for corrosion prevention with an example.
-
May 2014 Define corrosion. Discuss the mechanism of wet corrosion.
-
May 2012 Explain the mechanism of wet corrosion.
-
Dec 2012 Describe the mechanism of electrochemical corrosion.
-
Dec 2012 Explain dry corrosion.
-
Dec 2012 Describe the mechanism of electrochemical corrosion.
-
May 2011 Discuss the mechanism of wet corrosion.
-
Dec 2011 Discuss mechanism of wet corrosion.
-
May 2008 What is corrosion of metals? Explain electro-chemical corrosion with its mechanism.
-
Dec 2008 Explain the type of corrosion with evolution of hydrogen ions.
-
May 2007 Discuss briefly: Galvanic corrosion
-
Dec 2007 Explain briefly galvanic cell corrosion.
-
Dec 2007 Explain briefly pitting corrosion.
-
Dec 2006 Discuss briefly Galvanic corrosion.
-
-
Explain differential metal corrosion.Short Answer 4 Marks May-2016 • PTU B-TECH
-
May 2020 Explain the mechanism of galvanic corrosion.
-
May 2020 Explain the mechanism of wet corrosion.
-
May 2019 Discuss the chemistry and mechanism of wet corrosion.
-
Dec 2018 Discuss the mechanism of wet corrosion.
-
Dec 2017
Explain the mechanism of electrochemical corrosion with example.
-
May 2016 What is corrosion? Explain electrochemical theory of corrosion.
-
Dec 2016 Explain differential aeration corrosion.
-
Dec 2016 Give the cause of corrosion.
-
May 2015 Explain waterline corrosion.
-
May 2015 Explain stress corrosion.
-
May 2015 Explain the mechanism of electrochemical corrosion.
-
Dec 2015 Describe sacrificial anodic method for corrosion prevention with an example.
-
May 2014 Define corrosion. Discuss the mechanism of wet corrosion.
-
May 2012 Explain the mechanism of wet corrosion.
-
Dec 2012 Describe the mechanism of electrochemical corrosion.
-
Dec 2012 Explain dry corrosion.
-
Dec 2012 Describe the mechanism of electrochemical corrosion.
-
May 2011 Discuss the mechanism of wet corrosion.
-
Dec 2011 Discuss mechanism of wet corrosion.
-
May 2008 What is corrosion of metals? Explain electro-chemical corrosion with its mechanism.
-
Dec 2008 Explain the type of corrosion with evolution of hydrogen ions.
-
May 2007 Discuss briefly: Galvanic corrosion
-
Dec 2007 Explain briefly galvanic cell corrosion.
-
Dec 2007 Explain briefly pitting corrosion.
-
Dec 2006 Discuss briefly Galvanic corrosion.
-
-
What is polymerization?Short Answer 4 Marks May-2016 • PTU B-TECH
-
May 2023 a) What are different types of polymerization reactions? Give examples
-
May 2020 What are different types of polymerization reactions? Give examples.
-
May 2015 What is Polymerization? Discuss various types of polymerization.
-
May 2014 What is polymerization? Describe the types of polymerization.
-
May 2012 What is polymerization? Discuss its types.
-
Dec 2011 What is meant by polymerization?
-
-
Differentiate between addition polymerization and condensation polymerization. Give examples of addition and condensation polymerization.Long Answer 4 Marks May-2016 • PTU B-TECH
-
May 2022 Differentiate between addition polymerisation and condensation polymerization with suitable examples.
-
Dec 2014 Differentiate between addition and condensation polymers.
-
-
What is tacticity?Short Answer 4 Marks May-2016 • PTU B-TECH
-
How polymers are classified on the basis of tacticity?Short Answer 4 Marks May-2016 • PTU B-TECH
-
Dec 2023 Explain the Tacticity of Polymers.
-
Dec 2018 What do you understand by tacticity? How can it affect the properties of polymers?
-
Dec 2017
What is meant by tacticity of polymers?
-
Dec 2016 What do you understand by tacticity? How it can affect the properties of polymers?
-
May 2015 What are atactic polymers?
-
Dec 2011 What do you understand by tacticity in polymers? Explain different types.
-
-
What is self-assembly?Short Answer 4 Marks May-2016 • PTU B-TECH
-
Dec 2023 Explain the self-assembling materials.
-
May 2020 What are self assembling materials?
-
Dec 2017
Describe in details "materials self-assembly".
-
May 2013 Explain self assembling materials and two dimensional assemblies.
-
Dec 2012 What do you understand by self-assembling materials? Explain.
-
-
What are its distinctive features and advantages?Short Answer 4 Marks May-2016 • PTU B-TECH
-
Discuss applications of nanomaterials in medicine.Long Answer 4 Marks May-2016 • PTU B-TECH
-
May 2013 Discuss applications of nanomaterials in medicine.
-
-
Discuss briefly the natural gas treatment processes. Illustrate with the help of diagram.Long Answer 4 Marks May-2016 • PTU B-TECH
-
Dec 2023 Explain the Natural Gas treatment Processes.
-
Dec 2019 Discuss in detail the natural gas treatment processes and conversion processes.
-
Dec 2016 Explain natural gas treatment processes.
-
May 2013 Explain natural gas treatment processes.
-
Dec 2011 Discuss natural gas. Discuss its treatment processes.
-
-
Discuss cracking for the production of ethylene.Short Answer 4 Marks May-2016 • PTU B-TECH
-
May 2017
Discuss in details all the aspects including chemistry of production of ethylene and
\r\npropylene. -
May 2016 Discuss purification for the production of ethylene.
-
May 2014 Discuss the production of ethylene. Give its use.
-
Dec 2014 Discuss in detail the production process of ethylene.
-
Dec 2014 Discuss in detail the production process of propylene.
-
May 2013 Discuss the production of propylene.
-
Dec 2011 Discuss the production of ethylene and propylene.
-
-
Discuss purification for the production of ethylene.Short Answer 4 Marks May-2016 • PTU B-TECH
-
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.
-
May 2014 Discuss the production of ethylene. Give its use.
-
Dec 2014 Discuss in detail the production process of ethylene.
-
Dec 2014 Discuss in detail the production process of propylene.
-
May 2013 Discuss the production of propylene.
-
Dec 2011 Discuss the production of ethylene and propylene.
-
Explore all data
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.