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Which of the following ores can be conce...

Which of the following ores can be concentrated by froth-floatation process ? (`Fe_2O_3`, `AI_2O_3`, ZnS)

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USHA PUBLICATION-GENERL PRINCIPAL AND PROCESS OF ISOLATION OF ELEMENTS-EXERCISE
  1. The molten impure zinc tapped off from furnace is called as .

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  2. What is composition of copper matte ?

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  3. Which of the following ores can be concentrated by froth-floatation pr...

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  4. What is the role of silica in the metallurgy of copper?

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  5. method is used for refining of copper.

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  6. What is difference between mineral and ore ?

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  7. What is difference between calcination and roasting ?

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  8. What is leaching ? Glve an example.

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  9. What is Goldschmidt aluminothermic process ?

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  10. Write down the reactions taking place in different zones in the blast ...

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  11. Copper can be extracted by hydrometallurgy but not zinc. Explain.

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  12. Describe the principle of van-Arkel process for refining of metal.

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  13. Name three ores which can be purified by froth floatation process. Wha...

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  14. Name one chief ore of iron and aluminium. Name the methods used for th...

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  15. Explain the electrolytic refining of a metal.

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  16. How is zinc extracted from its sulphide ore ?

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  17. How is zinc dust and granulated zine prepared from zinc metal ?

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  18. The process used for purification of bauxite ore containing high silic...

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  19. What is the role of lime stone in the extraction of iron ?

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  20. How can you get wrought iron from cast iron ?

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