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The process of bringing the metal or its...

The process of bringing the metal or its ore into solution by the action of a suitable chemical reagnet following by extraction of the metal either by electrolysis or by suitable precipitating agent is called

A

Electrometallurgy

B

Electro-refining

C

Hydrometallurgy

D

Zone-refining

Text Solution

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The correct Answer is:
C
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Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Ag is precipitated from an aqueous solution of sodium argentocynide by adding

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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