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What is froth-floatation? Write its prin...

What is froth-floatation? Write its principle.

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CHHAYA PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE (SHORT ANSWER-TYPE QUESTIONS)
  1. Name two metals which can be extracted by self-reduction. How does the...

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  2. Write the principle of basic oxygen process (BOP) in preparing steel.

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  3. What is froth-floatation? Write its principle.

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  4. What is leaching? Explain with an example.

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  5. What do you mean by concentration or beneficiation of ores?

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  6. Comment on the occurrence of metals like Na, Fe and Au in nature.

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  7. What type of ore is usually concentrated by electromagnetic separation...

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  8. Mention the methods briefly used in the beneficiation of the following...

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  9. Mention the methods briefly used in the beneficiation of the following...

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  10. Mention the methods briefly used in the beneficiation of the following...

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  11. Mention the methods briefly used in the beneficiation of the following...

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  12. What is flux? How is it chosen in metallurgy?

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  13. Is carbon a suitable reducing agent for all metal oxides? Give reason.

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  14. Differentiate between hydrometallurgy and electrometallurgy with suita...

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  15. Is it possible to extract aluminium by electrolytic reduction of Al(2)...

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  16. Is it possible to extract Al by the electrolysis of an aqueous solutio...

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  17. Copper is obtained by roasting its sulphide ore - explain.

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  18. Discuss the thermodynamic principles of metallurgy.

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  19. Explain why the following reaction, although thermodynamically feasibl...

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  20. Discuss the limitations of Ellingham diagram.

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