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Write down the reaction taking place in different zones in the blast furnace during the extraction of iron.

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ASSAM ACADEMIC CENTRE-General Principles of Processes of Isolation of Elements-Example
  1. Out of C and CO, which is a better reducing agent at 673 K?

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

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

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

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  5. Explain the role of the following in the processes mentioned: Silica i...

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  6. What is meant by the term 'chromatography'?

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

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

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  9. Giving examples, differentiate between 'roasting' and 'calcination'.

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

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  11. Differentiate between 'minerals' and 'ores'.

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  12. Why Copper matte is put in Silica lined converter?

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

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  14. How is leaching carried out in case of low grade copper ores?

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

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  16. Out of C and CO, which is a better reducing agent at 673 K?

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

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

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

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  20. Predict conditions under which Al might be expected to reduce MgO.

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