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Name the method used for removing gangue...

Name the method used for removing gangue from sulfide ores.

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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (SHORT ANSWER QUESTIONS)
  1. Which of the following ores can be concentrated by froth floatation me...

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  2. What is the role of silica in the metallurgy of copper.

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  3. Name the method used for removing gangue from sulfide ores.

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  4. How is wrought iron different from steel?

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  5. Name the principal ore of aluminium. Explain the significance of leach...

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  6. Predict the modes of occurrence of the following three types of metals...

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  7. Name the chief forms of the occurrence of the following in the earth's...

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  8. Discuss some of the factors which need consideration before deciding o...

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  9. What is the difference between a rock and a mineral ?

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  10. How do elements generally occur?

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  11. What is meant by minerals and ores ? Are all minerals ores?

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  12. Name the methods used for the concentration of ores.

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  13. What is calcination and roasting ?

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  14. Giving appropriate examples (at least three), explain how the reactivi...

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  15. The choice of a reducing agent in a particular case depends upon therm...

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  16. Name three metals which are obtained by the reduction of their oxides ...

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  17. Which methods would you recommed for the purification of impure metals...

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  18. Distinguish: Slag and flux

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  19. Silver ores and native gold have to be leached with metal . cyanides. ...

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  20. Explain briefly the term poling.

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