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Pick out the more reactive metal...

Pick out the more reactive metal

A

Cu

B

Ag

C

Au

D

Na

Text Solution

Verified by Experts

The correct Answer is:
D
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FULL MARKS-METALLURGY -Additional questions ( CHOOSE THE BEST ANSWER )
  1. The chief ore of Aluminium is

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

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  3. Pick out the more reactive metal

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

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

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  6. The impurities associated with ores is……

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  7. Oxide ores are concentrated by………

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

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  9. Froth flotation process is suitable for concentrating …………… ores.

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  10. Copper pyrite and zinc blende are purified by……..

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  11. Frothing agents used to separate ZnS from PbS is……

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  12. Depressing agents used to separate ZnS from PbS is ……..

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  13. Leaching is also called as……..

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  14. In the leaching process ,the metal present in the ore is converted int...

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  15. Gold ore is concentrated by…….

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  16. Bauxite is purified by…….

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  17. Which type of leaching process convert insoluble sulphide ores into ...

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  18. A chemist involves mining process and he got two ores together .If on...

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  19. The process in which the concentrated ore is strongly heated in the ab...

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  20. A chemical substance that forms an easily fusible slag with gangue is ...

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