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Which of the following is not used to pu...

Which of the following is not used to purification of a metal ?

A

`1`. poling

B

`2`. distillation

C

`3`. alloying

D

`4`. liquation

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VGS PUBLICATION-BRILLIANT-PRINCIPLES OF METALLURGY-EXERCISE
  1. Which of the following undergoes an auto (self) reduction ? i) PbO i...

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  2. The process in which the ore is mixed with flux and fuel and strongly ...

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  3. Which of the following is not used to purification of a metal ?

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  4. Which of the following metal is low reactivity metal ?

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  5. Which of the following method is used for purification of Zinc ?

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  6. Name few highly reactive metals, which are never found in nature in fr...

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  7. Which of the following is the correct formula of gypsum?

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  8. Which of the following is not sulphide ore ?

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  9. In which of the following method a stream of water is used ?

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  10. Which of the following is a chemical method ?

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  11. Which of the following is wrong about poling ?

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  12. Which of the following is the correct order of activities series ?

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  13. Which of the following metal is not available in native state ?

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  14. Which method is most suitable to enrich the sulphide ores ?

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  15. Which of the following is slag formed in the smelting of iron ?

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  16. The parts 5 and 2 are

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  17. Which part is labelled wrong ?

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  18. Which reaction is appreciable for its role to join railings of railway...

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  19. Alloys are appreciable because

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  20. For the electrolysis of NaCl, a large quantity of electricity is requi...

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