9/CHEM/7/QB



Short Questions (120)


Easy Questions (30)


1. What is electrochemistry?


2. Define a spontaneous process.


3. What is a non-spontaneous reaction?


4. Define oxidation in terms of electron transfer.


5. What is reduction in electrochemistry?


6. What is a redox reaction?


7. What does oxidation number indicate?


8. What is the primary function of an electrochemical cell?


9. Define electrolytes.


10. What are strong electrolytes?


11. What are weak electrolytes?


12. What is a non-electrolyte?


13. Define an electrolytic cell.


14. What is electrolysis?


15. What is produced during the electrolysis of water?


16. Describe a galvanic cell.


17. What is the purpose of a salt bridge in a galvanic cell?


18. Define the construction of a Daniel cell.


19. What does a cathode do in an electrochemical cell?


20. What is an anode?


21. What is the role of electrodes in an electrolytic cell?


22. What is the primary reaction occurring in the Down cell?


23. What is the main product of the Down cell?


24. Describe the Nelson cell briefly.


25. What is the importance of sodium hydroxide?


26. What causes corrosion in metals?


27. What is rusting?


28. How can rusting be prevented?


29. What is metallic coating?


30. What is galvanizing?


31. Moderate Questions (48)


32. Explain the difference between oxidation and reduction using an example.


33. What factors determine whether a reaction is spontaneous?


34. How can oxidation numbers be used to identify redox reactions?


35. Describe the construction and working of an electrolytic cell.


36. Explain the process of electrolysis of water in detail.


37. How does a galvanic cell generate electrical energy?


38. Explain the working of the Daniel cell in detail.


39. Describe the process of manufacturing sodium metal from fused NaCl.


40. How does the Down cell operate?


41. Explain the process of manufacturing NaOH from brine.


42. What is the role of brine in the manufacture of NaOH?


43. How does the Nelson cell differ from other electrochemical cells?


44. Explain the concept of corrosion and its effects on metals.


45. Discuss the importance of paint and greasing in preventing rust.


46. How can stains from rust be removed effectively?


47. What are the advantages of alloying metals?


48. Explain the process of electroplating.


49. How is silver electroplated onto an object?


Tough Questions (36)


50. Derive the Nernst equation for an electrochemical cell.


51. Discuss the factors affecting the electrochemical series.


52. Explain the concept of electrode potential and its significance.


53. Compare the efficiency of strong and weak electrolytes.


54. Discuss the industrial applications of electrolysis in detail.


55. Analyze the environmental impact of electrochemical processes.


56. What are the main advantages and disadvantages of electroplating?


57. Describe the role of electrochemistry in battery technology.


58. How does temperature affect the reaction rates in electrochemical cells?


59. Explain the working principle of a fuel cell.


60. Discuss the significance of the standard electrode potential.


61. What are the limitations of galvanizing as a protective measure?


62. Describe how electroplating can be used for refining copper.


63. Discuss the role of pH in the electrolysis of water.


64. Analyze the causes and prevention methods for corrosion in pipelines.


65. What are the safety measures to be followed during electrochemical experiments?


66. Compare the properties and applications of tin and zinc coatings.


67. Discuss the impact of impurities on the efficiency of electrochemical reactions.


68. Explain the principles of a primary vs. secondary battery.


69. Describe the process of anodizing aluminum and its benefits.


Long Questions (10)


Easy Questions (3)


1. Define electrochemistry and its significance in the pharmaceutical industry.


2. Explain the differences between strong, weak, and non-electrolytes with examples.


3. Describe the process of electrolysis of water and its applications.


Moderate Questions (4)


4. Discuss the construction and working principles of a galvanic cell, using the Daniel cell as an example.


5. Explain the methods of preventing corrosion in metals, including paint, greasing, and alloying.


6. Discuss the manufacturing process of sodium hydroxide from brine, outlining the reactions involved.


7. Explain the concept of electroplating, including its applications and advantages in various industries.


Tough Questions (3)


8. Analyze the redox reactions involved in the corrosion of iron, including the conditions that promote rusting.


9. Discuss the industrial applications of electrolysis, including the manufacture of metals and electroplating processes.


10. Evaluate the environmental impacts of corrosion and electrochemical processes, and suggest strategies for mitigation.