Chemistry in society
1. Name the ore of iron-----------------------
2. Give the chemical name of hematite -----------------
3. Name the apparatus used for extraction of iron ----------------------------
4. Give the chemical formula of hematite---------------------------
5. Why the furnace is lined with bricks ---------------------------
6. Draw the blast furnace. Label it












7. Name the three raw materials needed for the extraction of iron…………………………………
8. Name the reducing agent in the blast furnace ……………………….
9. What is the role of carbon dioxide in the furnace? Give equation(imp)
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10. What is the role of calcium carbonate in the blast furnace?( imp)
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11. Give all the equations in blast furnace (imp)
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12. Why hot air is blast from the bottom of the furnace
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13) Explain the extraction of zinc by reduction
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14. Name the reducing agent for the extraction of zinc
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15. 1.Name the ore of zinc. Give the chemical name and chemical formula
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2. What is termite reaction. Give example. Give the use of thermite reaction ( imp)
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16. Explain the Purification of copper from impure copper block















At cathode …………………………………… at anode ……………………………..
Name the electrolyte used in the purification of copper …………………………….
17. Give the uses of metals
Iron –
Copper-
Aluminum-
Zinc-
Chromium
18. Give the name of the ore of aluminum ----------------------------
19. Give the chemical name of the ore of aluminum -------------------------
20. Give the chemical formula of the ore of aluminum ----------------------------
21. Name the substance used as anode and cathode in the extraction of aluminum
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22. Name the process of extraction of aluminum
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23. Give reaction at cathode ……………………………………
24. Give reaction at anode………………………………………….
25. Why electricity is used for the extraction of aluminum
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Manufacture of some important chemicals
Haber process
Name the process of manufacture of ammonia ……………………….
Name the raw material. Give the sources ……………………………………………………………………………………
give the condition for haber process
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Name the catalyst ………………………………………..
how the ammonia gas is removed from the chamber
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what do we do for the un reacted hydrogen and nitrogen
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7. Give important uses of ammonia …………………………………………………………………………………………
8. Describe the manufacture of nitric acid from ammonia
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9. Name the catalyst used for the manufacture of ammonia
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10. Give uses of nitric acid ……………………………………………..
11. Name the process of manufacture of sulphuric acid
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12. Name the raw material. Give the sources ……………………………………………………………………………………
13. Give the condition for contact process
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14. Name the catalyst……………………………………………..
15. Give reversible and irreversible reactions in contact process
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16. Give all the equation in contact process
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17. Give the uses of sulphuric acid
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18. Name the main pollutant gases in acid rain
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19. Give two environmental problems of acid rain
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20. Explain the extraction of sodium hydroxide for sea water( draw the diaphragm cell)












Name the gases at anode and cathode …………………………………………………….
Name the substance remaining in the solution……………………………..
Give the use of chlorine …………………………………………………..
Sodium hydroxide ………………………………………………..