Chapter 7 – Electrochemistry

Chapter 7 – Electrochemistry

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–(Long Questions)–[Open]


 

–(Test Yourself / Conceptual Questions)–[Open]


 

–(Exercise: MCQ’s+Short Q+Long Q)–[Open]


 

–(Extra: MCQ’s)–[Open]


PAST PAPERS SHORT QUESTIONS

Lahore & Gujranwala Board

  1. Differentiate between oxidizing and reducing agents. LHR 2014
  2. In electroplating of chromium, which salt is used as electrolyte? LHR 2014
  3. Why is O2 necessary for rusting? LHR 2014
  4. Calculate oxidation number of nitrogen in HNO3. LHR 2014
  5. Define oxidation in terms of electron and give an example LHR 2014
  6. Which salt is use as electrolyte in chromium electroplating? LHR 2014
  7. Why O2 is necessary for rusting? GRW 2014
  8. Why an iron grill is painted frequently? GRW 2014
  9. Why galvanizing is done? GRW 2014
  10. What is the difference between valancy and oxidation state? GRW 2014
  11. What is alloy? Give an example. GRW 2014
  12. Calculate oxidation number of chlorine in KCIO3. GRW 2014
  13. What is the difference between valency and oxidation state? GRW 2014
  14. Define oxidation and reduction. GRW 2014
  15. Define weak electrolyte and give an example. GRW 2014
  16. Define Electroplating. LHR 2015
  17. What are non-electrolytes, give example? LHR 2015
  18. What are redox reactions? LHR 2015
  19. Write the names of Electro chemical cells. LHR 2015
  20. What is the difference between Anode and Cathode? LHR 2015
  21. Define oxidation state with example. LHR 2015
  22. Define redox reactions. LHR 2015
  23. Find out oxidation number of nitrogen in when : LHR 2015
  24. Define weak electrolytes and give an example. LHR 2015
  25. How the half cells of galvanic cell are connected? What is the function of salt bridge? LHR 2015
  26. Identify a strong and weak electrolyte among the following compounds:           LHR 2016
  27. Write two differences between electrolytic and galvanic cell. LHR 2016
  28. Define corrosion. LHR 2016
  29. What are redox reaction? LHR 2016
  30. Write any two chemical properties of halogens. LHR 2016
  31. What is a reducing agent? Give an example. GRW 2016
  32. Define electroplating. Why is it used? GRW 2016
  33. Write formulas of two strong electrolytic compounds. GRW 2016
  34. Differentiate between oxidizing and reducing agents. GRW 2016
  35. Why is galvanizing done? GRW 2016
  36. Define electroplating. GRW 2016

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