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Explain the following terms used in meta...

Explain the following terms used in metallurgy:
(a) Roasting (b) Calcination (c) Smelting

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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (LONG ANSWER QUESTIONS)
  1. What are the different methods to obtain concentrated ores?

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  2. Describe the different steps involved in the extraction of metals from...

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  3. Explain the following terms used in metallurgy: (a) Roasting (b) Ca...

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  4. Discuss briefly the important methods used to obtain free metal from a...

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  5. Describe briefly a process used for the purification of a metal like c...

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  6. Describe various methods used for refining of metals.

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  7. Describe the principle of each of the following processes in detail : ...

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  8. Discuss the electrolytic process to obtain aluminium metal from bauxit...

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  9. How is copper extracted from copper pyrites ?

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  10. Name the chief ore of aluminium. Describe briefly the extraction of al...

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  11. Discuss briefly, with equations, the principle of extraction of bliste...

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  12. Describe the steps in the extraction of zinc metal from zinc blende.

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  13. List the important ores of iron.

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  14. Write a short note on alloy steels.

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  15. Discuss the chromatographic method for purification of crude metals.

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  16. Give uses of aluminium, copper and zinc.

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  17. What is galvanization? How is galvanization done?

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  18. Mention two important substances present in the 'anode mud' obtained i...

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  19. What is the main difference in the constituents of bell metal and bras...

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  20. What are the different methods to obtain concentrated ores?

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