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Why do some metals occur in the native s...

Why do some metals occur in the native state?

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Metals like Au ant Pt, which are not reactive, i.e., are not attacked by ` O _2 ` , moisture and ` CO _ 2 ` of the air occur in the native state.
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Why do some metals occur in the native rate ?

Reactive metals occur in native state.

Identify the metal that occurs in the native state in nature.

Which of following metals occurs in native state?

In general which metal do you expecto to occur in the native state in nature? Give example.

The metal not found in the native state is-

PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ADDITIONAL QUESTIONS (Very Short Answer Questions)
  1. Why do some metals occur in the native state?

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  2. Why do metal sulphides occur mainly in rocks and metal halides in lake...

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  3. Give the names of the four most abundant elements in the earth's crust...

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  4. Name a sulphide ore of copper.

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  5. What is a mineral? How does it differ from an ore?

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  6. What is meant by benefaction process ?

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  7. What is gangue ?

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  8. What type of ores can be concentrated by magnetic separation method ...

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  9. Name a method used for removing gangue from sulphide ore.

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  10. (a) Why is it that only sulphide ores are concentrated by frot...

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  11. Write the name of the method of concentrated applied for the...

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  12. Out of PbS and PhCO 3 (ores of lead), which one is co...

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  13. Metal sulphides occur mainly in rocks and metal halides occur in lakes...

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  14. What is the role of collectors in froth floatation process ? G...

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  15. A sample of galena is contaminated with zinc blende. Name one chemical...

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  16. In the extraction of Al, impure alumina is dissolved in conc....

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  17. What is slag ? Give one example.

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  18. What type of ores are roasted?

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  19. What is meant by the term 'pyrometallurgy' ?

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  20. Indicate the temperature at which carbon can be used as a reducing age...

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