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What is liquation ?...

What is liquation ?

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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (SHORT ANSWER QUESTIONS)
  1. Silver ores and native gold have to be leached with metal . cyanides. ...

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  2. Explain briefly the term poling.

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  3. What is liquation ?

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  4. Describe briefly Van Arkel method for refining of metals.

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  5. What is the principle of zone refining of metals?

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  6. Carbon monoxide is more effective reducing agent than carbon below 983...

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  7. Which metals are generally extracted by the electrolytic process ? Wha...

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  8. What are the reactions taking place at the two electrodes during elect...

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

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

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  11. Name the principal ore of aluminium.

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  12. Describe the leaching of aluminium ore.

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

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

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

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

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

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

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

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

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