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Describe the role of the following: N...

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

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Describe the role of the following : (i) NaCN in the extraction of silver from a silver ore (ii) Iodine in the refining of titanium (iii) Cryolite in the metallurgy of aluminium

Describe the role of the following : (i) NaCN in the extraction of silver ore. (ii) Cryolite in the extraction of aluminium from pure alumina.

Describe the role of the following: Coke in the extraction of iron from its oxides.

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

Explain the role of each of the following : (i) NaCN in the extraction of silver (ii) SiO_(2) in the extraction of copper

Explain the role of each of the following : (i) NaCN in the extraction of silver (ii) SiO_(2) in the extraction of copper

What is the role of zinc metal in the extraction of silver?

Explain the role of each of the following in the extraction of metals from their ores: Zinc in the extraction of silver

Explain the role of each of the following in the extraction of metals from their ores : (i) CO in the extraction of nickel. (ii) Zinc in the extraction of silver. (iii) Silica in the extraction of copper.

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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (SHORT ANSWER QUESTIONS)
  1. Write the chemical reactions which take place in the following operati...

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  2. What chemical principle is involved in choosing a reducing agent for g...

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  3. Describe the role of the following: NaCN in the extraction of silve...

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  4. Describe the role of the following: Cryolite in the extraction of a...

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  5. Give reason : Reduction of Cr(2) O(3) with Al is thermodynamically fea...

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  6. Account for the following facts: (a) The reduction of a metal oxide ...

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  7. Account for the following facts : pine oil is used in froth floatat...

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

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

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

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

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

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

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

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

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

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

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

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

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

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