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The extraction of Au by leaching with Na...

The extraction of Au by leaching with NaCN involves both oxidation and reduction. Justify giving equations.

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The extraction of Au by leaching with NaCN both oxidation and reduction. Justify giving equations.

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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (SHORT ANSWER QUESTIONS)
  1. Account for the following facts : pine oil is used in froth floatat...

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  2. Name the method used for the refining of (i) nickel (ii) Titanium.

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  3. The extraction of Au by leaching with NaCN involves both oxidation and...

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  4. Describe how the following changes are brought about: Pig iron into...

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  5. Describe how the following changes are brought about: Zinc oxide to...

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  6. Describe how the following changes are brought about: Impure titani...

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  7. What is the utility of air blast in the extraction of iron in blast fu...

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

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

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

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

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

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

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

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

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

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

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

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

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

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