Solved question paper for CHEMISTRY May-2022 (B-TECH 1st-2nd)

Solved Question Paper

Engineering chemistry May-2022

PTU • B-TECH • Mechanical Engineering • 1st-2nd • May-2022

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.

Solved Questions

Solved
  1. What is the importance of ‘finger print region’ in infrared spectroscopy?
    Short Answer 2 Marks May-2022 • PTU B-TECH
  2. What is Lambert-Beer’s Law?
    Short Answer 2 Marks May-2022 • PTU B-TECH
  3. Distinguish between hard water and soft water.
    Short Answer 2 Marks May-2022 • PTU B-TECH
  4. Write down the properties of water to be used as green solvent.
    Short Answer 2 Marks May-2022 • PTU B-TECH
  5. The observed chemical shift of a proton is 350 Hz from TMS and the operative frequency of NMR spectrometer is 100 MHz. Calculate the chemical shift in δ ppm.
    Short Answer 2 Marks May-2022 • PTU B-TECH
  6. What is calgon conditioning of boiler feed water?
    Short Answer 2 Marks May-2022 • PTU B-TECH
  7. What is meant by polymer reinforced composite?
    Short Answer 2 Marks May-2022 • PTU B-TECH
  8. Why does the small anodic area result in intense corrosion?
    Short Answer 2 Marks May-2022 • PTU B-TECH
  9. What are natural gas liquids?
    Short Answer 2 Marks May-2022 • PTU B-TECH
  10. What are nonmaterial’s?
    Short Answer 2 Marks May-2022 • PTU B-TECH
  11. Why molecules absorb in UV-Visible region? What are the types of electronic transitions that can occur in a molecule? Explain giving examples.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  12. What is the principle of IR spectroscopy? Calculate the fundamental modes of vibrations in C6H6 and CH4 molecules.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  13. What is meant by quantum yield of a photochemical reaction? How would you explain very high and very low quantum yields of some photochemical reactions?
    Long Answer 4 Marks May-2022 • PTU B-TECH
  14. Differentiate between fluorescence and phosphorescence.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  15. Explain the desalination of water by reverse osmosis method.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  16. Differentiate between scale and sludge. How are scales formed? What are their disadvantages?
    Long Answer 4 Marks May-2022 • PTU B-TECH
  17. Name the twelve principles of green chemistry. Explain the use of innocuous reagents in green synthesis.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  18. How can the ultrasonic radiations be used to carry out the green chemical synthesis? Explain by taking a suitable example.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  19. What is differential aeration corrosion? Illustrate the reactions involved in differential aeration corrosion with reference to iron materials.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  20. What are the different methods of controlling corrosion? Explain sacrificial anodic protection method.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  21. Differentiate between addition polymerisation and condensation polymerization with suitable examples.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  22. ‘Weight average molecular weight is higher than number-average molecular weight of a polymer’. Explain.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  23. What are the characteristics of self assembly? Explain the formation of self assembled monolayers.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  24. What are coercing colloids? Give its applications.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  25. What is the composition of crude oil? Also, classify the crude oil in different categories.
    Long Answer 4 Marks May-2022 • PTU B-TECH
  26. Describe the catalytic cracking of crude petroleum oil.
    Long Answer 4 Marks May-2022 • PTU B-TECH

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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.