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Hydrogen is used as a reducing agent in ...

Hydrogen is used as a reducing agent in the extraction of

A

Mo

B

Ca

C

W

D

Na

Text Solution

Verified by Experts

The correct Answer is:
A, C
`H_(2)` is used as a reducing agent for the extraction of Mo and W.
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-SELECTED STRAIGHT OBJECTIVE TYPE MCQS
  1. Auto-reduction process is used for the extraction of :

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

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

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  4. In nature , metals are found in the

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  5. In nature, non metals are found in the

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  6. Leaching is used for the concentration of

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  7. Pick out the correct statements

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

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

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

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

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  12. Extraction of metal from the ore cassiterite involves

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

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  14. In the metallurgical processes, aluminium acts as

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  15. Hydrogen will not reduce

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

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

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  18. An important ore of magensium is

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  19. Among the following statements the incoorect one is

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  20. In the commercial electrochemical process for aluminium extraction, th...

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