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Predict the modes of occurrence of the f...

Predict the modes of occurrence of the following three types of metals :
(a) Highly reactive (e.g `Na`)
(b) Moderately reactive (e.g `Fe`)
( c) Noble metal (e.g `Au`).

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PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS)
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  2. (a) Name the chief form of occurrence of the following in the...

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

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  4. What is the difference between mineral and ore ?

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  5. All ores are minerals , but all minerals are not ores. Why ?

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  6. How do non-metals occur in nature ? How are they extracted//isolated f...

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  7. What is meant by concentration of ores ?

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  8. Describe magnetic separation method of concentration of ores.

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  9. Describe the principle of froth flotation process. What is the role of...

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  10. Describe the principle of froth floatation process.

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  11. What is meant by leaching ? Give reactions involved during lea...

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  12. Describe the leaching of aluminium ore.

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  13. Write the chemical equations involved in the preparation of p...

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  14. Describe the pinciple controlling the preparation of pure alumin...

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  15. Mention the role of cryolite in the extraction of aluminium.

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  17. Describe the role of the following : (i) NaCN in the extractio...

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  18. What is the main difference between ? (i) Cupellation and poling (...

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  19. Differentiate between roasting and calcination.

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