Extract of Metals

Chemistry Board Question
Chapter Twelve
Extraction of Metals
Short Question
1. i) What is reactivity series? Write the names and symbols of most / less electropositive metals. (RB-05) 1+1=2
 ii) What is reactivity series of metals? Describe it. (RB-03, CtgB-99, 01, 03) 2
 iii) Explain the importance of reactivity series. (BB-02, RB-05, DB-02, 04, 00) 1
 iv) Make a reactivity series for any three metals. (JB-00) 1
 v) Write the names of four metals according to reactivity series. (CtgB-03) 1
2. i) What do you mean by ores. (CB-05) 1
 ii) What is ore? Write the names and formulae of four ores of iron. (B-99, 02, DB-99, CtgB-04) 2
 iii) Write the names and formulae of important ores of iron. (RB-99) 1
 iv) Write the names and formulae of two ores of-
  a) Iron (JB, RB-02, SB-02, 05, CtgB-05) 2
  b) Zinc (BB-05, SB-04) 2
  c) Aluminium (CtgB-00) 2
  d) Formulae of Cryolite, Copper Pyrites (SB-04), Calamine, Bauxite, Limonite (DB-05), Spathic iron/Siderite (JB-02)
  e) Write the names and formulae of one Sulphide Ores of Zinc, Lead, Iron and Copper metals. (CtgB-02) 2
  f) Write names of Zinc and Iron ores (one for each). 1
  g) What is called Corandum? (CtgB-05) 1
3. i) What is meant by extraction of metals? Name the two Principal processes for the extraction of metals. (CB-99, JB-99, BB-01, BB-05) 2
 ii) What do you mean by extraction of metals? What is spectator ion? (DB-01, BB-05) 2
 iii) How many kinds of metal extraction are there? What are they? (JB-99, 03, DB-01)
 iv) Extraction of metal is a reduction process-Explain. (RB-00, 02, DB-02) 2
4. What is Slag? Write about its uses. (JB-01) 2
5. What is Zinc dust? (DB-02) 1
6. What is cast iron? What is pig rion? (CB-03) 1
7. Write down the names of different classified iron mentioning the amounts of its components. (RB-99) 1
8. What is Blister Copper? How it is purified / refined? (DB-05, CtgB-05) 2
9. How is blister copper manufactured? (RB-00) 2
10. i) Describe the difficulties that is met during the extraction of sodium metal. (CtgB-99) 2
 ii) What are the primary difficulties to be met during the electrolysis of molten sodium chloride? (BB-02, DB-02) 2

Broad Question
11. Describe the extraction process of sodium metal. (CtgB-99) 4
12. Describe the extraction any metal by electrolysis process. (CtgB-04) 4
13. i) Describe the process of extraction and refining of copper. (RB-01) 4
 ii) Describe the extraction process of copper. (CB-02) 3
 iii) How is copper refined by electrolysis. (DB-02, JB-04) 3
 iv) What is matte? How blister copper can be produced from the copper matte? (RB-01, JB-01) 3
14. Describe the extraction process of Zinc with Figure. (RB-03, CB-01, CtgB-00, SB-01, JB-03) 3/4
15. i) What is ores? Describe with diagram the extraction process of Aluminium from its ores. (DB-01, BB-00, RB-02, JB-99, 05, CB, BB-04, 05, RB-05, CB-05) 1+3=4
 ii) Discuss the extraction of Aluminium by electrolytic process. (JB-05) 3
16. Describe the extraction process of lead with diagram. Test 08(CtgB-02, BB-02, SB-05, RB-03, BB-02) 3
17. Describe the extraction process of Calcium. (CtgB-01) 4
18. i) What is called the blast furnace? (JB-04) 1
 ii) Describe how iron is extracted by Blast furnace process. Write the reactions take place. (CB-99, RB-04) 4
 iii) Write the reactions that takes place at different steps in the blast furnace during the extraction of iron. (DB-05, 01) pre08 3
 iv) Describe the reactions that takes place at different steps in the blast furnace during the manufacture of cast iron. (SB-02, DB-01, JB-00, SB-04, DB-05) 3
19. How is iron manufactured by using blast furnace. (CB-00) 4