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In the froth floatation process for the ...

In the froth floatation process for the purification of ores the particles float because……

A

They are light

B

Their surface is not easil wetted by water

C

they bear electrostatic charge

D

they are insoluble

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The correct Answer is:
B
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FULL MARKS-METALLURGY -Additional questions ( CHOOSE THE BEST ANSWER )
  1. Choose the best answer.

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  2. Froth floatation process involves the……

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  3. In the froth floatation process for the purification of ores the parti...

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  4. In a metallurgical process ,an acid flux is used for removing…..

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  5. The process of the removal of impurities from a crude metal is called…...

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  6. Which of the following metal is obtained by self reduction method?

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  7. Which one of the following ore is best concentrated by froth floatatio...

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  8. Heating mixture of Cu(2)O and Cu(2)S will give……..

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  9. Which of the following pairs of metals is puridied by Van-Arkel method...

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  10. Aluminium is extracted from alumina (Al(2)O(3)) by electrolysis of a m...

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  11. The ore which contains both copper and iron….

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  12. Match the etraction processes listed in column-I with metals listed in...

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  13. The chief ore of Aluminium is

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  14. Which one of the following metal having least chemical reactive?

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  15. Pick out the more reactive metal

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  16. Consider the following statements. (i)All ores ar minerals but all m...

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  17. Match the List-I and List-II correctly using the code given below.

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  18. The impurities associated with ores is……

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  19. Oxide ores are concentrated by………

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  20. Heaematite and tin stone are purified by …………

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