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Describe the role of the following: l...

Describe the role of the following:
lodine in the refining of titanium

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Describe the role of the following: Cryolite in the extraction of aluminium from pure alumina.

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Describe the role of the following: NaCN in the extraction of silver from a silver ore.

Describe the principle controlling each of the following processes: (i) Vapour phase refining of titanium metal. (ii) Froth floatation method of concetration of a sulphide ore

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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (SHORT ANSWER QUESTIONS)
  1. What is the utility of air blast in the extraction of iron in blast fu...

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  2. What is 'anodisation'? Give an example of the process.

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  3. Describe the role of the following: lodine in the refining of titan...

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  4. Describe the role of the following: Cryolite in the metallurgy of A...

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  5. Explain the role of each of the following in the extraction of metals ...

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  6. Explain the role of each of the following in the extraction of metals ...

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  7. Explain the role of each of the following in the extraction of metals ...

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  8. State the role of depressant in froth floatation process.

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  9. What is the function of SiO(2) in the metallurgy of copper?

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  10. State the role of graphite rod in the electrolytic reduction of alu...

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

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  12. How can you obtain pure alumina from a bauxite ore associated with sil...

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  13. What is a flux? What is the role of flux in the metallurgy of iron and...

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  14. What is the role of depressant in froth floatation process?

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  15. Describe the principle involved in each of the following processes: ...

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  16. Describe the principle involved in each of the following processes: ...

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  17. Name one chief ore each of copper and aluminium. Name the method used ...

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  18. What is slag? Give one example.

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  19. What are the main constituents of German silver.

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  20. Draw the Ellingham diagram for the formation of carbon monoxide. What ...

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