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Pb and Sn are extracted from their chief...

Pb and Sn are extracted from their chief ore by

A

Carbon reduction and self reduction

B

Self reduction and carbon reduction

C

Electrolylsis and self reduction

D

Self reduction and electrolylsis

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-REVISION EXERCISE -METALLURGY
  1. Silver sulphide is heated in the presence of air and common salt to co...

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  2. Metal extracted only by electrolysis process is

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  3. Silver can be precipitated in hydrometallurgy by using aluminium. Thi...

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  4. At which one of the following condition, a reducing agent is suitable ...

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  5. From the below Ellingham diągram, incorrect statement among the follow...

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  6. Colourless solutions of the following four salts are placed separately...

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  7. Zirconium and titanim are purified by

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  8. Pb and Sn are extracted from their chief ore by

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  9. Gold and silver are extracted from their repective ores by

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  10. The process of protecting iron by coating with zinc is called

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  11. All of the following metals are silvery white except

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  12. A common metal widely used in electrical cables and kitchen ware is

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  13. The percentage of carbon in steel is approx

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  14. Which of the following is used in electroplating?

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  15. {:("List-I","List-II"),("(reaction)","(Slope of the graph in Ellingham...

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  16. Neutral refractory material used in furnaces is

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  17. The process of bringing the metal or its ore into solution by the acti...

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  18. The removal of impurities from an ore by forming molten mass is called

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  19. In the froth flotation process for the purification of minerals the pa...

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  20. Cryolite is chemically

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