Solved question paper for CHEMISTRY Dec-2016 (B-TECH 1st-2nd)
Solved Question Paper
Engineering chemistry Dec-2016
PTU • B-TECH • Information Technology • 1st-2nd • Dec-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-
What is saline water?Very Short Answer 2 Marks Dec-2016 • PTU B-TECH
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Give the cause of corrosion.Very Short Answer 2 Marks Dec-2016 • 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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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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Dec 2011 Discuss 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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Name the two phases of chromatography.Very Short Answer 2 Marks Dec-2016 • PTU B-TECH
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May 2017
What is partition chromatography?
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May 2016 What is the basic principle of Chromatography? Give various types of liquid chromatography.
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May 2015 What is the basic principle of chromatographic techniques?
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May 2015 Discuss various types of liquid chromatography.
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Dec 2015 What is the basic principle of chromatographic techniques?
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May 2014 What is chromatography?
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May 2014 Define chromatography. Discuss various types of chromatography.
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May 2014 Give the applications of chromatography.
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May 2013 What do you understand by partition chromatography?
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May 2013 What are the types of liquid chromatography?
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May 2012 What is partition chromatography?
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May 2012 What is chromatography? Discuss its classification.
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Dec 2012 What is chromatography?
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Dec 2012 Discuss classification of chromatography.
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May 2011 What are the advantages of chromatography?
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May 2011 What is chromatography? Discuss the types of chromatography.
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Dec 2011 Give the classification of chromatography.
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May 2010 Explain partition chromatography.
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May 2010 Explain paper chromatography.
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May 2010 Explain thin layer chromatography.
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Dec 2010 How chromatographic separation methods can be classified?
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Dec 2010 Briefly discuss the applications of chromatography.
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May 2007 What are various classes of chromatography? Bring out clearly the principles involved in each case.
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Dec 2007 What are various classes of chromatography? Bring out clearly the principles involved in each case.
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Dec 2006 What are various classes of chromatography? Bring out clearly the principles involved in each case.
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May 2005 How are chromatographic techniques classified? Discuss in brief chromatographic mechanism.
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May 2005 Explain the chromatographic development with suitable example.
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What are indicators? Give examples.Very Short Answer 2 Marks Dec-2016 • PTU B-TECH
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Give the full name of MASERS and LASERS.Very Short Answer 2 Marks Dec-2016 • PTU B-TECH
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What is ultraviolet and visible spectroscopy known as?Very Short Answer 2 Marks Dec-2016 • PTU B-TECH
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May 2017
Explain the selection rules of UV-vis Spectroscopy.
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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 2011 Discuss the principle 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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What is NMR and MRS?Very Short Answer 2 Marks Dec-2016 • PTU B-TECH
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May 2016 Explain the principle of nuclear magnetic resonance spectroscopy.
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Dec 2016 Discuss the principle of NMR spectroscopy.
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May 2015 Discuss the principles of NMR.
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Dec 2015 What is chemical shift in NMR?
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May 2014 Explain the principle of NMR spectroscopy.
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Dec 2014 Explain principles of NMR Spectroscopy.
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Dec 2012 Explain spin-spin splitting in NMR.
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Dec 2012 Explain the principle of NMR.
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Dec 2011 What information is obtained from spin-spin splitting in NMR?
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Dec 2008 Explain the shielding and deshielding process in NMR-spectroscopy with some suitable examples.
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May 2005 In relation to NMR spectra, explain Chemical Shift and TMS.
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May 2005 In relation to NMR spectra, explain Shielding and Deshielding.
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Dec 2005 What do you understand by NMR spectroscopy?
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What is a phase and a component?Very Short Answer 2 Marks Dec-2016 • PTU B-TECH
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Give no of signals in Benzene and Nitrobenzene.Very Short Answer 2 Marks Dec-2016 • PTU B-TECH
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Calculate the value of Einstein of energy in electron volts for radiation of frequency 3×10^15.Short Answer 2 Marks Dec-2016 • PTU B-TECH
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Dec 2005 Calculate the value of an Einstein of energy in electron volts for radiation of frequency 3 x 10^15.
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What is boiler feed water and boiler corrosion?Short Answer 4 Marks Dec-2016 • PTU B-TECH
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May 2022 What is calgon conditioning of boiler feed water?
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May 2014 What are the specifications for boiler feed water?
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May 2007 What is colloidal conditioning of boiler feed water?
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Dec 2007 What is Calgon conditioning of boiler feed water?
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Dec 2006 What is colloidal conditioning of boiler feed water?
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Explain any two methods of water softening.Short Answer 4 Marks Dec-2016 • PTU B-TECH
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May 2016 Discuss in details different methods for softening of water.
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Dec 2016 Discuss the cation and anion exchange resins, and their usefulness for water softening.
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May 2014 Describe Zeolite method for softening of water.
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Dec 2012 Describe ion exchange method for softening of water.
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May 2011 Describe Zeolite method for softening of water.
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Dec 2010 Discuss ion exchange method for water softening.
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Dec 2007 Describe the ion exchange process of softening hard water. What are its advantages?
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Give protective measurement of corrosion.Long Answer 8 Marks Dec-2016 • PTU B-TECH
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Give flow diagram of LC instrument.Long Answer 8 Marks Dec-2016 • PTU B-TECH
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May 2015 Discuss briefly the flow diagram of LC instrument with diagram.
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Dec 2012 Draw well labelled flow diagram of LC instrument. Discuss briefly.
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Dec 2011 Draw flow diagram of LC instrument.
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Can we use a copper vessel to store 1 M AgNO3 solution? (E°Cu2+/Cu = +0.34 V; E°Ag+/Ag = +0.80 V)Short Answer 8 Marks Dec-2016 • PTU B-TECH
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Give the difference between fluorescence and phosphorescence.Long Answer 8 Marks Dec-2016 • PTU B-TECH
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May 2022 Differentiate between fluorescence and phosphorescence.
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May 2015 What is fluorescence and how is it different from phosphorescence?
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Dec 2014 What is the difference between fluorescence and phosphorescence?
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May 2013 What is fluorescence and how it is different from phosphorescence?
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May 2011 Compare fluorescence with phosphorescence.
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Dec 2011 Differentiate fluorescence from phosphorescence.
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Dec 2010 Differentiate phosphorescence from fluorescence.
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May 2005 Distinguish between Fluorescence and phosphorescence.
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Give principle and application of IR.Long Answer 8 Marks Dec-2016 • PTU B-TECH
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Explain the no of signals and hyperfine structure with suitable examples.Long Answer 8 Marks Dec-2016 • PTU B-TECH
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Explain phase diagram of one component system- water and carbon dioxide.Long Answer 8 Marks Dec-2016 • PTU B-TECH
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Dec 2011 Draw and discuss phase diagram of carbon dioxide.
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May 2008 Draw a phase diagram of CO2 system. In what respect does the system differ from water system?
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Dec 2007 Draw and discuss the phase diagram for carbon dioxide system. In what respect does this system differ from the water system?
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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?
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02 Are these official Punjab Technical University question papers?
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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.
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