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B4C (boron carbide) is used except:...

`B_4C` (boron carbide) is used except:

A

to extract boron

B

As an abrasive for polishing

C

For making bullet-proof clothing

D

For making diborane

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The correct Answer is:
D
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MOTION-METALLURGY-EXERCISE 2 (LEVEL - I)
  1. Which one of the following statements is not correct

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  2. In the extraction of nickel of Mond's process, the metal is obtained b...

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  3. B4C (boron carbide) is used except:

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  4. Froth floatation process is based on

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  5. When ZnS and PbS minearls are present together, then NaCN is added to ...

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  6. When copper is purified by electrorefining process, noble metals like ...

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  7. Formation of volatile Ni(CO)(4) and then its subsquent decomposition i...

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  8. Match column–I (process) with column–II (electrolyte) : Column–I (p...

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  9. (I) FeCr2 O4 + NaOH + air to (A) + Fe2O3 (II) (A) + (B) to NaCr2O7 ...

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  10. (I) FeCr2 O4 + NaOH + air to (A) + Fe2O3 (II) (A) + (B) to NaCr2O7 ...

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  11. (I) FeCr2 O4 + NaOH + air to (A) + Fe2O3 (II) (A) + (B) to NaCr2O7 ...

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  12. (I) FeCr2 O4 + NaOH + air to (A) + Fe2O3 (II) (A) + (B) to NaCr2O7 ...

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  13. In Froth floatation process for, pine oil functions oil functions as:

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  14. Collectors are the subsances which help in attachment of an ore partic...

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  15. Zone refinning is based on the principle of:

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  16. Which of the following species is desirable substance in extraction of...

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  17. Select correct statement regrading silver extraction//purification pro...

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  18. Which of the following reaction does not occur in Bessemer’s converter...

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  19. Dow’s process :

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  20. In the cyanide process involving extraction of silver, zinc is used in...

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