Solved question paper for CHEMISTRY Dec-2012 (B-TECH 1st-2nd)

Solved Question Paper

Engineering chemistry Dec-2012

PTU • B-TECH • Electrical Engineering • 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.

Solved Questions

Solved
  1. What happens when temporary hard water is boiled? Write chemical equations.
    Very Short Answer 2 Marks Dec-2012 • PTU B-TECH
  2. Give two examples of monomers that will not give stereoregular polymer.
    Very Short Answer 2 Marks Dec-2012 • PTU B-TECH
  3. What is the origin of petroleum?
    Very Short Answer 2 Marks Dec-2012 • PTU B-TECH
  4. The absorption bands in UV-visible spectra are usually broad. Explain.
    Very Short Answer 2 Marks Dec-2012 • PTU B-TECH
  5. Explain how rusting of iron is prevented by galvanization.
    Very Short Answer 2 Marks Dec-2012 • PTU B-TECH
  6. Distinguish between photochemical and thermal reactions.
    Very Short Answer 2 Marks Dec-2012 • PTU B-TECH
  7. Write the formula describing “risk” for exposure of chemical(s) in an industry.
    Very Short Answer 2 Marks Dec-2012 • PTU B-TECH
  8. What are nanomaterials?
    Very Short Answer 2 Marks Dec-2012 • PTU B-TECH
  9. Explain the process of vulcanisation of rubber. What is its use?
    Very Short Answer 2 Marks Dec-2012 • PTU B-TECH
  10. Define Lambert-Beer law.
    Very Short Answer 2 Marks Dec-2012 • PTU B-TECH
  11. What is spectroscopy? Discuss the principle and working of a spectrophotometer with the help of schematic diagram.
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  12. Explain spin-spin splitting in NMR.
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  13. What is meant by quantum yield of a photochemical reaction? Explain.
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  14. Explain fluorescence.
    Short Answer 2 Marks Dec-2012 • PTU B-TECH
  15. What are optical sensors?
    Short Answer 2 Marks Dec-2012 • PTU B-TECH
  16. Discuss the treatment of ground water to be used for domestic purposes.
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  17. Give the names of three sludge forming and three scale forming compounds.
    Short Answer 2 Marks Dec-2012 • PTU B-TECH
  18. Why natural water should not be used for boilers?
    Short Answer 2 Marks Dec-2012 • PTU B-TECH
  19. Catalytic reagents are superior to stoichiometric reagents. Explain with the help of examples.
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  20. What do you understand by % yield in a chemical reaction? Describe the concept of % atom economy by taking examples from rearrangement reactions and substitution reactions.
    Long Answer 4 Marks Dec-2012 • PTU B-TECH
  21. Which part of the nail, inside or outside of wood undergoes corrosion readily and why?
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  22. Describe the mechanism of electrochemical corrosion.
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  23. How the molecular weight of polymer can be determined by number average method?
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  24. What are composite materials? What are the advantages and limitations of polymer reinforced composites?
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  25. Discuss supramolecular structures.
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  26. What do you understand by self-assembling materials? Explain.
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  27. What is Crude Oil? Give its composition and classification.
    Short Answer 4 Marks Dec-2012 • PTU B-TECH
  28. Describe the second generation petrochemicals. Discuss giving examples.
    Short Answer 4 Marks Dec-2012 • 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.