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Fill in the blanks : Acidic refractory m...

Fill in the blanks : Acidic refractory material is ………….

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SHARAM PUBLICATION-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-EXERCISE
  1. Fill in the blanks : Impurities in the minerals are usually removed by...

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  2. Fill in the blanks : ………….. And ……………. Process can remove volatile imp...

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  3. Fill in the blanks : Acidic refractory material is ………….

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  4. Fill in the blanks : Name one ore which contains both iron and copper.

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  5. The ore that can be concentrated by magnetic separation method, are .....

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  6. Why is aluminium a good reducing agent ? Give examples.

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  7. How does SiO2 remove impurities of CaO in an ore ?

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  8. What is the role of depressant in froth flotation process ?

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  9. What is self-reduction in metallurgy? Give example.

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

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  11. Give two requirements for vapour phase refining.

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  12. What is leaching ? Glve an example.

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  13. What do you mean by liquation process of refining of metal ?

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  14. Why are Ag and Au remain in anode mud during electrolysis refining of ...

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  15. Outline the principles of refining metals by the method: Zone refini...

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  16. Give an example of Van Arkel method of refining.

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  17. How is nickel refined by Mond' s process ?

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  18. What do you mean by calcination ?

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  19. What do you mean by roasting ?

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  20. What is difference between calcination and roasting ?

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