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From the following which chemical compou...

From the following which chemical compound is contained in calamine .
`(ZnCO_3, CuSO_4, CaCO_3, SiO_2)

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`ZnCO_3`
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V PUBLICATION-PRODUCTION OF METALS-QUESTION BANK
  1. An alloy of iron, chromium and nickel.

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  2. Find the relation and fill up suitably. Aluminium : Bauxite Iron:....

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  3. From the following which chemical compound is contained in calamine . ...

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  4. Some metals exist in free state because of its..........

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  5. Write one example for an ore separated by leaching.

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  6. Non-removable impurities during ore concentration is called......... ...

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  7. Which reducing agent is used in Blast fumace?

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  8. Gangue + Flux gives .......

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  9. Aluminium is used for making utensils due to its.......

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  10. Write the difference between calcination and roasting .

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  11. Analyse the flow chart given below and answer the following questions....

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  12. Write down the anode, cathode, and electrolyte used in electrolytic ce...

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  13. Clay, cryolite and Bauxite are the minerals of Aluminium. a) Which ...

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  14. Find the relation and fill up suitably. a) Zinc sulphide Roasting: C...

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  15. Analyse the given table and answer the following questions. a) Write...

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  16. Bauxite (AL2 O3, 2H2 O) and clay (Al2 O3 2SiO2 2H2 O) are two natural...

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  17. Electricity and carbon monoxide (CO) and reducing agents used to extra...

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  18. Froth flotation process, hydraulic washing, magnetic separation, leach...

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  19. Complete the table. b) Why different methods are used for purifying t...

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  20. a) Name the ore of Iron? b) Which reduces lon from iron oxide in the...

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