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The actual reducing agent of haematite i...

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

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`CO`
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Answer the following questions briefly. (i) What is the actual reducing agent of haematite in blast furnace ? (ii) Give the equations for the recovery of lead from galena by air reduction. (iii) Why is sodium chloride added during electrolysis of fused anhydrous magnesium chloride. (iv) Zinc, not copper, is used for the recovery of metallic silver from the complex [Ag(CN)_(2)] . Explain. (v) Why is chalcocite roasted and not calcinated during recovery of copper ?

Purpose of coke in the blast furnace is

The fuel used in blast furnaces is _____.

The iron formed in blast furnace is calle d

ALLEN-METALLURGY-EXERCISE-03
  1. In the thermite process, is used as a reducting agent.

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

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

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

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

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

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

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

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

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

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  11. Statement-I : All the ores are mineral Statement-II : Most of the or...

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  12. Statement-I : In the extraction of Ag the complex Na[Ag(CN)(2)] is rea...

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  13. Statement-I : Thermite mixture Fe(2)O(3) +AI (powder) is used in the w...

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  14. Statement-I : CuFeS(2) is concentrated by froath floatation method S...

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  15. Statement-I : In the smelting of copper ore coke is added in the blas...

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  16. Statement-I : Extraction of iron metal from iron oxide ore is carried ...

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  17. Statement-I : Wolframite impurities are separated from cassiterite by ...

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  18. Statement-I : Lead, tin the bismuth are purified by liquation method. ...

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  19. Dow's process of extraction of Mg involves extraction of Mg from sea w...

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  20. Dow's process of extraction of Mg involves extraction of Mg from sea w...

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