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Explain the role of the following in the...

Explain the role of the following in the processes mentioned: Silica in the extraction of copper.

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R G PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. Explain the role of the following in the processes mentioned: Silica i...

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  2. Explain the role of the following in the processes mentioned: Cryolite...

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  3. Explain the role of the following in the processes mentioned: Depressa...

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  4. Describe the role of the following in the processes mentioned: NaCN in...

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  5. Describe the role of the following in the processes mentioned: Limesto...

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  6. Describe the role of the following in the processes mentioned: Iodine ...

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  7. Name two ores which can be concentrated by froth floatation process.

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  8. How is 'cast iron' different from pig iron?

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  9. Name the common elements present in the anode mud in electrolyte refin...

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  10. Name one metal which is refined by Van Arkel method?

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  11. complete the following reaction Al2O3+C rarr

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  12. Which metal foils are used for wrapping chocolates?

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  13. What are ores? Name one sulphide ore.

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  14. Explain the role of Cryolite in the electrolytic reducion of alumina.

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  15. How does the FeO impurity present in sulphide ore of copper is removed...

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  16. Name one important ore of aluminium. Give its chemical composition.

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  17. Write down the reaction taking place in different zones in the blast f...

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  18. Name the method used for the refining of Nickel.

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  19. Differentiate between 'minerals' and 'ores'.

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  20. Distinguish between calcination and roasting.

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