Electrolysis

Chemistry Board Question
Chapter Ten
Electrolysis
Short Question
1. i) What is electrolysis? State with example. (SB-02, 05) 2
 ii) What is electrolytes? State with example. (BB-01, SB-05) 2
 iii) Describe the mechanism of electrolysis with example and labelled diagram. (JB-04) 2
 iv) Write the Faraday's Laws of electrolysis. (JB-05, DB-01, SB-01, JB-99, 01, RB-05) 2
2. i) State and explain Faraday's first law of electrolysis. (CB-02, DB-05) 2
 ii) State Faraday's first law of electrolysis with its explanation. (DB-99, RB-04) 2
3. i) What do you mean by electroplating and galvanizing? (CtgB-05) 2
 ii) What is electroplating? How it can be done? (DB-05, CtgB-00, JB-05) 2
 iii) State the purpose of electroplating. (SB-05, JB-05) 1
 iv) How nickel plating can be done on iron items? (DB, RB-00, DB-05) 2
4. i) How can you purify copper metal by electrolysis? 2
 ii) How metal can be purified by electrolysis? State with example. (SB-03) 3
5. i) Write down the chemical changes occurs during the electrolysis of aqueous solution of sodium chloride. (DB-01) Pre 08 2
 ii) What are the primary inconvenience for the electrolysis of sodium chloride? (DB-01) 2
6. What happens when electricity is passed through acidified water? (JB-01) 2
7. i) What is anode and Cathode in electrolysis? (JB-02)pre08 2
 ii) What is meant by Cathode and anode? (RB-00, SB-04) 1
 iii) What is electrode? (RB-00, SB-04) 1
8. How chloride ion can be converted to chlorine? (CtgB-04) 2
9. What is meant by electrochemical equivalent weight / mass of a substance? (RB-00) 1
10. To prepare 01 mole of oxygen it requires how much faraday of electricity?(BB-04) 1
Broad Question
11. Discuss the electrolysis of aquous solution of sodium chloride. (SB-04) 3
12. What is electroplating? How this can be done? Why it is done? (RB-99) 3
13. i) What is electrolysis? What happens when a solution of copper sulphate is electrolysed with platinum anode? Write with equation. (Jb-00, RB-01) test 08 4
 ii) Describe the electrolysis process of copper sulphate solution. (CtgB-03) 3
14. What are the difference between electrolysis and the metal conductors? (DB-01, CtgB-05) 3
15. Discuss the process of electroplating. (CtgB-02) 3
16. Discuss what happens and how happens when electricity is passed through acidified water. (CB-99, RB-02, SB-04) 4
17. State the two Faraday's laws of electrolysis and explain the first law. (RB-02, JB-03 Test 08 ) 3
18. Describe the purification of copper showing anode and cathode reaction with its diagram. (JB-04) 3
19. Describe the electrolysis of concentrated solution of NaCl with Hg electrode. (JB-03) 3
20. 0.25 ampere current was passed through silver nitrate solution for 10 minutes. 0.1679 gm of silver was deposited at the cathode. If 0.2 ampere current is passed through another silver nitrate solution for 01 hour 40 minutes what is the amount of silver deposited at the cathode? (CtgB-01) 3
21. 0.21 ampere current was passed through copper sulphate solution for 15 minutes. 0.63 gm of copper was deposited at the cathode. If 0.15 ampere current is passed through another copper sulphate solution for 40 minutes, What is the amount of copper deposited at the cathode? (CtgB-99) 4
22. 0.21 ampere current was passed through copper sulphate solution for 15 minutes. 0.63 gm of copper was deposited at the cathode. What is electrochemical equivalent mass of copper? (JB-02) 2