Solved question paper for CHEMISTRY Dec-2012 (B-TECH 1st-2nd)
Solved Question Paper
Engineering chemistry Dec-2012
PTU • B-TECH • Information Technology • 1st-2nd • Dec-2012
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 liquid junction potential?Short Answer 2 Marks Dec-2012 • PTU B-TECH
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Dec 2017
What is liquid junction potential? Derive the expression for liquid junction potential.
\r\nHow can it be minimized or eliminated? -
May 2014 Explain liquid junction potential.
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May 2013 What do you understand by liquid junction potential?
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May 2011 What is liquid junction potential?
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What is chromatography?Short Answer 2 Marks Dec-2012 • 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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Dec 2016 Name the two phases of 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 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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Explain dry corrosion.Short Answer 2 Marks Dec-2012 • 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 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 salts responsible for temporary and permanent hardness of water.Short Answer 2 Marks Dec-2012 • PTU B-TECH
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May 2020 How are salts responsible for the temporary and permanent hardness of water? Explain.
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May 2017
SECTION-A
1. Write briefly :
a) Explain temporary and permanent hardness of water.
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May 2013 What salts are responsible for temporary and permanent hardness of water?
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May 2012 Explain temporary and permanent hardness of water.
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May 2011 What salts are responsible for temporary and permanent hardness of water?
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Dec 2011 Explain degree of hardness of water.
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Dec 2008 How are salts responsible for the temporary and permanent hardness of water? Explain.
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What is quantum yield?Short Answer 2 Marks Dec-2012 • PTU B-TECH
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Dec 2018 What is quantum yield?
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Dec 2017
Define quantum yield. Give its mathematical expression.
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May 2016 Define quantum yield.
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May 2015 Define quantum yield. What are the reasons for low and high quantum yield?
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Dec 2015 Define quantum yield.
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Dec 2010 Discuss quantum yield.
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Dec 2008 Define quantum yield and explain with specific examples.
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Dec 2005 What do you understand by quantum yield?
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What do you understand by dry ice?Short Answer 2 Marks Dec-2012 • PTU B-TECH
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Explain Franck-Condon principle.Short Answer 2 Marks Dec-2012 • PTU B-TECH
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May 2015 State and explain Franck-Condon principle.
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May 2014 Discuss Franck-Condon principle.
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May 2013 Discuss Franck-Condon principle.
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May 2011 Explain Frank-Condon principle.
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Dec 2010 Discuss Franck-Condon principle.
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May 2005 Explain the Frank-Condon principle.
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What is phase rule?Short Answer 2 Marks Dec-2012 • PTU B-TECH
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Dec 2017
What do you understand by reduced phase rule?
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May 2014 What is phase rule?
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May 2010 What is condensed phase rule?
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May 2010 When is condensed phase rule applied?
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May 2005 What is phase rule? What is its significance?
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Dec 2005 What is condensed Phase Rule? When is it applied?
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“The absorption bands in UV-visible spectra are usually broad.” Explain.Short Answer 2 Marks Dec-2012 • PTU B-TECH
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May 2014 Most absorption bands in the UV-Visible spectra are very broad. Explain.
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Dec 2012 The absorption bands in UV-visible spectra are usually broad. Explain.
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Which will occur at a higher frequency: the C-O stretch of phenol or the C-O stretch of cyclohexanol? Explain.Short Answer 2 Marks Dec-2012 • PTU B-TECH
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What are the requirements of drinking water for human consumption?Long Answer Dec-2012 • PTU B-TECH
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Describe ion exchange method for softening of water.Long Answer Dec-2012 • 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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Dec 2016 Explain any two methods of water softening.
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May 2014 Describe Zeolite 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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Describe the mechanism of electrochemical corrosion.Long Answer Dec-2012 • 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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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.
-
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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Discuss differential aeration corrosion.Long Answer Dec-2012 • PTU B-TECH
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May 2023 a) Discuss the importance of design and material selection in controlling corrosion.
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Dec 2019 Discuss briefly about differential aeration corrosion.
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May 2013 Explain the protective measures of controlling corrosion.
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May 2013 Discuss atmospheric corrosion.
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May 2012 Discuss metal alloys for corrosion control.
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May 2012 Discuss anodic and cathodic coating for corrosion control.
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May 2007 Discuss the importance of design and material selection in controlling corrosion.
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May 2007 Discuss briefly: Stress corrosion
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Dec 2007 Describe various methods employed for protection of metals from corrosion.
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Dec 2006 Discuss the importance of design and material selection in controlling corrosion.
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Dec 2006 Discuss briefly Stress corrosion.
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Discuss classification of chromatography.Long Answer Dec-2012 • PTU B-TECH
-
May 2017
What is partition chromatography?
-
May 2016 What is the basic principle of Chromatography? Give various types of liquid chromatography.
-
Dec 2016 Name the two phases of chromatography.
-
May 2015 What is the basic principle of chromatographic techniques?
-
May 2015 Discuss various types of liquid chromatography.
-
Dec 2015 What is the basic principle of chromatographic techniques?
-
May 2014 What is chromatography?
-
May 2014 Define chromatography. Discuss various types of chromatography.
-
May 2014 Give the applications of chromatography.
-
May 2013 What do you understand by partition chromatography?
-
May 2013 What are the types of liquid chromatography?
-
May 2012 What is partition chromatography?
-
May 2012 What is chromatography? Discuss its classification.
-
Dec 2012 What is chromatography?
-
May 2011 What are the advantages of chromatography?
-
May 2011 What is chromatography? Discuss the types of chromatography.
-
Dec 2011 Give the classification of chromatography.
-
May 2010 Explain partition chromatography.
-
May 2010 Explain paper chromatography.
-
May 2010 Explain thin layer chromatography.
-
Dec 2010 How chromatographic separation methods can be classified?
-
Dec 2010 Briefly discuss the applications of chromatography.
-
May 2007 What are various classes of chromatography? Bring out clearly the principles involved in each case.
-
Dec 2007 What are various classes of chromatography? Bring out clearly the principles involved in each case.
-
Dec 2006 What are various classes of chromatography? Bring out clearly the principles involved in each case.
-
May 2005 How are chromatographic techniques classified? Discuss in brief chromatographic mechanism.
-
May 2005 Explain the chromatographic development with suitable example.
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Draw well labelled flow diagram of LC instrument. Discuss briefly.Long Answer Dec-2012 • PTU B-TECH
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Dec 2016 Give flow diagram of LC instrument.
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May 2015 Discuss briefly the flow diagram of LC instrument with diagram.
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Dec 2011 Draw flow diagram of LC instrument.
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Explain the titration curve of strong acid with strong base by conductometry.Long Answer Dec-2012 • PTU B-TECH
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May 2013 Discuss conductometric titration of a strong acid against strong base.
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Dec 2010 Discuss conductometric titration of a weak acid against strong base.
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Discuss Nernst's equation for electrode potential and emf of cell.Long Answer Dec-2012 • PTU B-TECH
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May 2020 Derive Nernst equation.
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Dec 2019 Write down the Nernst equation and define electric potential.
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May 2015 Derive Nernst equation and give its significance.
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Dec 2015 Derive Nernst equation and give its significance.
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May 2011 Describe emf of electrochemical cell by taking suitable example.
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May 2007 What is Nernst equation? Write its applications.
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Dec 2006 What is Nernst equation? Write its applications.
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Dec 2005 Derive Nernst equation and give its significance.
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Explain the kinetics of photochemical reaction by taking a suitable example.Long Answer Dec-2012 • PTU B-TECH
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Explain primary and secondary photochemical processes.Long Answer Dec-2012 • PTU B-TECH
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Dec 2023 Define the Primary photochemical reactions.
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Dec 2023 Difference between Primary and Secondary photochemical reactions.
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Describe the principle of UV-Vis spectroscopy.Long Answer Dec-2012 • 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 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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Discuss the applications of IR spectroscopy.Long Answer Dec-2012 • PTU B-TECH
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Dec 2023 What are the applications of IR spectroscopy?
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May 2013 Discuss the principles of IR Spectroscopy.
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May 2012 Discuss IR spectroscopy and its applications.
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May 2011 Give the scope of IR spectroscopy.
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Explain the principle of NMR.Long Answer Dec-2012 • 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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Dec 2016 What is NMR and MRS?
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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 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 double resonance? Explain.Long Answer Dec-2012 • PTU B-TECH
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Draw well labelled phase diagram of water and explain.Long Answer Dec-2012 • PTU B-TECH
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Dec 2023 Draw the phase diagram of one component water system.
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May 2013 Draw well labelled phase diagram of water. Describe in detail.
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May 2010 Draw a neat labelled phase diagram of water system and explain areas, curves and triple points on it.
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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.