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Metals can be recovered from their ores ...

Metals can be recovered from their ores by chemical methods.

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A metal X present in rock salt is highly reactive and it is stored under kerosene to prevent it from catching fire. It exists in nature as XCI. Identify the metal 'X'. How can this metal be extracted from its Chloride ore, Write chemical equations to explain your answer? How is calcination different from roasting?

ALLEN-METALLURGY-EXERCISE-03
  1. Metals can be recovered from their ores by chemical methods.

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  2. Sulphide ore of copper can be concentrated by froth floatation process...

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  3. Silver is purified by distillation process

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  4. Hightly pure metal can be obtained by zone refining

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  5. Zinc is precipitated from a solution of zinc sulphate by addition of i...

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  6. The slag obtained during the extraction of copper pyrites is composed ...

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  7. In calcination, ore is heated strongly in the absence of air

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  8. A number of elements are available in earth's crust but most abundant ...

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  9. Cassiterite is an ore of

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  10. In the metallurgical process for the electro-refining of the metal, th...

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  11. In the thermite process, is used as a reducting agent.

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  12. The mineral carnallite contains magnesiuma and...........metal

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  13. The actual reducing agent of haematite in blast furnace is ..........

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  14. In the basic Bessemer process for the manufacture of steel, the lining...

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  15. The transition metal present in the alooy gun metal is .

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  16. The slag obtained during the extraction of copper from coper pyrites i...

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  17. Iron is copper in the electrochemical series and hence displaces fro...

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  18. {:(Column-I(Ore),Column-II("Created formula & properties")),((A)"Iron ...

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  19. {:(Column-I("Metal"),column-II),((A)"Magnesite",(p)"Ore of magnesium")...

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  20. {:(Column-I(Ore),Column-II),((A)"Iron",(p)"Carbon reduction method"),(...

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