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Reducing agent of haematite in blast- fu...

Reducing agent of haematite in blast`-` furnace is

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Carbon monoxide, 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 ?

The flux used in the extraction of iron from Haematite in te blast furnace is "["EAM(ENG)2014"]"

A mixture of haematite, coke and limestone on heating in blast furnace gives molten iron metal. This is known as

Purpose of coke in the blast furnace is

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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Conceptual Questions
  1. Describe the principle of froth flotation process. What is the role of...

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  2. Name three forms of iron. How do these three forms differ?

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  3. Reducing agent of haematite in blast- furnace is

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  4. (a) What is a slag ? (b) Give the principle of zone refining ? ( c...

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  5. Name the method used for the refining of (i) Nickel (ii) Zirconium.

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  6. Pine oil is generally added in the froth floatation process. Explain.

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  7. Giving examples differentiate between roasting and calcination.

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  8. What is meant by benefaction process ?

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  9. Write the equation of the net reaction taking place in Hall Heroult el...

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  10. Why is the froth flotation method selected for the concentration of Su...

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  11. Which of the following reactions taking place in the blast furnace dur...

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  12. Why Al cannot be reduced by carbon?

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  13. What is the role of flux in metallurgical processes?

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  14. Out of C and CO which is a better reducing agent for Feo. (i) In the...

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  15. Name the method of refining of metals such as germanium.

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  16. (i) Name the method of refining of metals such as Germanium. (ii) In...

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  17. Name the method of refining which is based on the principle of adsorpt...

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  18. (i) What is the role of cryolite in the extraction of aluminium ? (i...

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  19. (i) Name the method of refining of metals such as Germanium. (ii) In...

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  20. (a) Write the principle of method used for the refining of germanium. ...

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