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Common impurities present in bauxite are...

Common impurities present in bauxite are

A

CuO

B

ZnO

C

`Fe_(2)O_3`

D

`SiO_2`

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The correct Answer is:
C, D
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-SELECTED STRAIGHT OBJECTIVE TYPE MCQS
  1. Common impurities present in bauxite are

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  2. Auto-reduction process is used for the extraction of :

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  3. Which of the following metal/metals can be used for the extraction of ...

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  4. Hydrogen is used as a reducing agent in the extraction of

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  5. In nature , metals are found in the

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  6. In nature, non metals are found in the

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  7. Leaching is used for the concentration of

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  8. Pick out the correct statements

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  9. Of the following that cannot be obtained by electrolysis of the aqueou...

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  10. The element which exists in the liquid state at room tempertaure are

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  11. The major role of fluorpar (CaF2 ) which added in small quantities in ...

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  12. Which of the following oxides is/are amphoteric ?

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  13. Extraction of metal from the ore cassiterite involves

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  14. The carbon-based reduction method is not used in the extraction of

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  15. In the metallurgical processes, aluminium acts as

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  16. Hydrogen will not reduce

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

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  18. In which of the following mineral aluminium is not present ?

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  19. An important ore of magensium is

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  20. Among the following statements the incoorect one is

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