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From the following diagram suggest a con...

From the following diagram suggest a condition under which magnesium could reduce alumina.

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R G PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. Giving example differentiate between "roasting"& calcination.

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  2. What is pyro metallurgy? Describe the conditions of the equation used ...

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  3. From the following diagram suggest a condition under which magnesium c...

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

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  5. How wrough iron is prepared from cast iron?

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  6. In reverberatory furnace how Cu is extracted from copper matte? Write ...

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  7. The reaction, Cr2O3 + 2Al rarr Al2O3 + 2Cr (DeltaG^@ = -421KJ) is ther...

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  8. Why Zinc not extracted from Zinc oxide through reduction using CO?

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  9. What is the role of graphite rod in the electrometallurgy of aluminium...

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  10. What is hydro metallurgy? How Cu is extracted by this method.

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  11. Name the processes from which Chlorine is obtained as a by product.

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  12. Outline the prinicples of refining of metals by the following methods....

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  13. Describe the underlying principle of each of the following metal refin...

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  14. Outline of refining of metals by the following methods. Vapour phase ...

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  15. Outline of refining of metals by the following methods. Van Arkel met...

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  16. What is Hall-Heroult process? How many Al can be obtained by burning a...

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  17. What criterion is followed for the selection of the stationary phase i...

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  18. Zinc and not Copper is used for the recovery of silver from the comple...

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

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  20. What is the role of iodine in the refining of titanium?

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