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Write down the chemical formulae of the ...

Write down the chemical formulae of the following ores: Chalcopyrites, Bauxite, Flourspar, Haematite.

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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (SHORT ANSWER QUESTIONS)
  1. What are the reactions taking place at the two electrodes during elect...

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  2. How is pure alumina prepared from bauxite in Baeyer's process? Give th...

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  3. Write down the chemical formulae of the following ores: Chalcopyrites,...

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  4. Name the principal ore of aluminium.

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  5. Describe the leaching of aluminium ore.

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  6. Explain the basic principles of the following metallurgical operations...

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  7. State briefly the principles which serve as the basis for the followin...

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  8. Write the chemical reactions which take place in the following operati...

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  9. Write the chemical reactions which take place in the following operati...

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  10. Write the chemical reactions which take place in the following operati...

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

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

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

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

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

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

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  17. Name the method used for the refining of (i) nickel (ii) zirconium.

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

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

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

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