Solved question paper for CHEMISTRY May-2020 (B-TECH 1st-2nd)

Solved Question Paper

Engineering chemistry May-2020

PTU • B-TECH • Information Technology • 1st-2nd • May-2020

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. Which have high melting point and why: HgCl2 or CaCl2?
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  2. Why is TMS used as an internal standard in NMR spectroscopy?
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  3. Define e.m.f. of cell.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  4. Write down the equation of state of real gas.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  5. Give cis and trans notation to the following compound i.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  6. Give cis and trans notation to the following compound ii.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  7. How do you explain anomalous electronic configuration of Cu (4s1 3d10)?
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  8. Can oxidation state be negative? Discuss.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  9. Give one example of hard acid and one example of soft acid.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  10. What is isomerism?
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  11. For a cell reaction A(s) + 2B(aq) → A2+(aq) + 2B(s) at 298 K, the equilibrium constant is 1.0 × 10^30. Calculate E°cell.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  12. Solve the Schrödinger wave equation for particle in one-dimensional box.
    Long Answer 6 Marks May-2020 • PTU B-TECH
  13. Give the physical meaning of wave function.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  14. What is crystal field theory? How does this theory account for the fact that [CoF6] is paramagnetic but [Co(NH3)6] is diamagnetic though both are octahedral?
    Long Answer 8 Marks May-2020 • PTU B-TECH
  15. What are van der Waals forces? Discuss them briefly.
    Short Answer 5 Marks May-2020 • PTU B-TECH
  16. The van der Waals constants of a gas are a = 0.751 dm^6 atm mol^-2 and b = 0.0226 dm^3 mol^-1. Calculate critical constants.
    Short Answer 3 Marks May-2020 • PTU B-TECH
  17. Explain principles of UV-Vis spectroscopy. How do you distinguish between different types of transitions involved in UV-Vis spectroscopy?
    Short Answer 5 Marks May-2020 • PTU B-TECH
  18. On the basis of IR spectroscopy, how can you distinguish between alkane, alkene and alkyne?
    Short Answer 3 Marks May-2020 • PTU B-TECH
  19. On the basis of IR spectroscopy, how can you distinguish between aldehyde and ketone?
    Short Answer 3 Marks May-2020 • PTU B-TECH
  20. Derive Nernst equation.
    Short Answer 4 Marks May-2020 • PTU B-TECH
  21. Calculate the mean ionic activity coefficients of 0.1 mol/kg HCl, given the e.m.f. of the cell H2(1 atm)/HCl(a), AgCl(s)/Ag is 0.3524 V and that standard electrode potential of Ag-AgCl is 0.2224 V at 25°C.
    Short Answer 4 Marks May-2020 • PTU B-TECH
  22. Discuss the molecular geometry of BC.
    Short Answer 4 Marks May-2020 • PTU B-TECH
  23. Discuss the molecular geometry of PCl5.
    Short Answer 4 Marks May-2020 • PTU B-TECH
  24. What is effective nuclear charge?
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  25. Which element has the highest effective nuclear charge?
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  26. What is ionization energy?
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  27. Which elements have the highest ionization energy?
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  28. Define chirality.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  29. Define enantiomers.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  30. Define diastereomers.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  31. Define optical activity.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  32. Discuss the synthesis of a commonly used drug molecule by taking a suitable example.
    Short Answer 4 Marks May-2020 • PTU B-TECH
  33. Write short note on oxidation reactions.
    Very Short Answer 2 Marks May-2020 • PTU B-TECH
  34. Write short note on ring opening reactions.
    Very Short Answer 2 Marks May-2020 • 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.