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Discuss the use of an acidic flux in met...

Discuss the use of an acidic flux in metallurgy.

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`SiO_2` is used in the metallurgy of copper to remove FeO as FeSIO_3 (salg) i.e, acidic flux is used to remove basic impurities
`FeO+SiO_2toFeSiO_3`
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AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Try yourself
  1. Name some elements that can occur free in nature

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  2. Define the term flux.

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  3. Discuss the use of an acidic flux in metallurgy.

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  4. Name and formula of two magnetic ores.

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  5. Which types of ores are purified by hydraulic washing ? Give two examp...

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  6. What is the role of collectors in Froth Floatation process ?

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  7. Sulphdies ores are converted to oxides before reduction . This is expl...

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  8. Discuss the process of roasting with suitable example.

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  9. During roasting the temperature should be kept below its m.p. Why ?

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  10. What type of the reduction method does the following reaction show (Be...

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  11. Which reducing agent is commonly employed for reduction of (a) ZnO "...

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  12. In some cases, Ellingham diagrams (graphs) show a bend. What do you re...

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  13. On Ellingham diagrams if two graphs intersect each other, what does th...

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  14. Name the four man zones of blast furnace in the extraction of Fe from ...

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  15. Write down the reactions taking place in different zones in the blast ...

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  16. Coke can be used to reduce Cu(2)O. Explain it based on thermodynamic v...

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  17. What is the impure copper collected from Bessemer converter commonly c...

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  18. Name and formulate the main ore from which zinc is extracted.

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  19. What is the impure form of zinc commonly known as ?

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  20. Name and formulate the reagent used for the leaching of argentite.

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