Chemistry Electrochemistry Past Paper PDF

Chemistry Question bank unit 1 --Electrochemistry 1. Differentiate between a conductor and non-conductor. 2. Write the reaction when calomel acts as cathode. 3. Mention the limitations of Standard Hydrogen electrode. 4. Write the representation of Glass electrode. 5. List any two differen...

Chemistry Question bank unit 1 --Electrochemistry 1. Differentiate between a conductor and non-conductor. 2. Write the reaction when calomel acts as cathode. 3. Mention the limitations of Standard Hydrogen electrode. 4. Write the representation of Glass electrode. 5. List any two differences between electrochemical cell and electrolytic cell. 6. Define standard electrode potential. 7. Why electrochemical cells do stops working after some time? 8. Mention the advantages of glass electrode 9. How will you represent the Quinhydrone electrode? 10. List any two applications of alkaline battery. 11. Write the cell reaction for Daniel cell. 12. Mention the advantages of the Lithium ion battery. 13. Give any two examples of next-generation battery technologies. 14. List any two limitations of Zinc-Carbon batteries. 15. Define a reference electrode. 16. Why dry cell became dead after long time, even if it has not been used? 17. Write the mathematical expression for Nernest equation for Zn~(s)~/Zn^2+^~(aq)~//Cu^2+^~(aq)~/Cu~(s)~ 18. What is primary battery? Give an example 19. Comment on reversible battery 20. Why Ni-Cd battery versatile as compared to lead acid battery. Give reasons. 21. Mention the advantages of solid state batteries. 22. Differentiate between solid state batteries and Li-ion batteries 23. Quick charging is possible in solid state batteries. Why. 24. Write anode and cathode reaction of Li-S battery. 25. Write the charging reaction of lead acid battery 26. Mention the any significance EMF series. 27. Calculate the standard electrode potential of Zn electrode dipped in a 0.1 M ZnSO~4~ at 25^o^C 28. Comment on Al-Air battery. 29. Mention the applications of Nernst equation. Part B 1. Discuss the construction and working principle of Standard Hydrogen electrode. 2. Explain the construction and working principle of Quinhydrone electrode. 3. Derive the Nernst equation for an electrode and its applications. 4. Discuss the construction and working principle of Calomel electrode. 5. What is electrochemical series? Write brief note on its applications 6. A hydrogen electrode containing the solution of unknown pH is coupled with a saturated calomel electrode. Calculate the pH of the solution if Ecell is 0.6215V and E~SCE~ is 0.2422V. 7. Consider the cell Fe/Fe2+ (0.01M) // Cu 2+ (0.5M)/Cu. The reduction potential of Iron and Copper are -0.44V and +0.34V respectively. Write the cell reaction and calculate the emf of the cell. 8. Explain the lead acid battery technology with suitable electrode reactions 9. Write brief note on Ni-Cd batteries and list out its advantages. 10. Why next generation batteries technologies are important. Write the working of Al-Air battery. 11. State the importance of alkaline primary batteries. Explain the working principle of alkaline battery.