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The metals occuring in the form of their...

The metals occuring in the form of their compounds in the earth's crust are called

A

maltee

B

minerals

C

alloys

D

gangue

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The correct Answer is:
B
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V PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. Mond's process is used for

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  2. Some metals occur in the native form because of their

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  3. The metals occuring in the form of their compounds in the earth's crus...

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  4. In metallurgy, flux is a substance used to convert

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  5. Carbon is used as a reducing agent to obtain metals from their ores. I...

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  6. Out of the following metals, the metal which cannot be obtained by ele...

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  7. Froth floatation process for the concentration: of ores'is an illistra...

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  8. Sulphide ores, of metáls are usually concentrated by froth floatation ...

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  9. Which of the following oxides carnot be reduced to metal by carbon?

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  10. The Oil used in the floatation method for the purification-of ores is

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  11. Froth floatation process may be used to increase the concentration of ...

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  12. Malachite is a mineral of

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  13. Electrolytic réduction method is used in the extraction of

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  14. Extraction of zinc from zinc blende is achieved by

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  15. Which metal has a greater tendency to form metal oxide

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  16. Silver containing lead as an impurity is purified by

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  17. During electrolytic refining of copper, some metals present as inpurit...

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  18. Blister copper is

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  19. In blast furnace, iron oxide is reduced by

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  20. One of the following metals forms a volatite compoụd and this property...

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