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Which of the following metal (s) is /are...

Which of the following metal (s) is /are commercially extracted by self reduction method from their correspoindign ore ?

A

Cu

B

Fe

C

Pb

D

Hg

Text Solution

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The correct Answer is:
A, C, D
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VK JAISWAL-METALLURGY-One OR MORE ANSWERS IS/ ARE CORRECT
  1. Which of the following metal (s) is /are commercially extracted by sel...

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  2. Which of the following process makes the ore porous ?

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  3. Which of the following ores is / are oxide ore (s) ?

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  4. Roasting of copper pyrites is done :

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  5. Which of the following is a correct statement ?

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  6. In which of the following pairs, both the minerals are oxides ?

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  7. Which of the following mineral does not contain sodium ?

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  8. Which of the following pair consists of ore of the same metal ?

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  9. The process by which ligher earthly particles are made free from heavi...

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  10. Roasting is carried out to :

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  11. The chemical treatment of the ore for concentration is done in the cas...

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  12. Froth floatation :

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  13. Which of the following reactions occurs during calcination ?

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  14. Amphoteric nature of aluminium is employed in which of the following p...

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  15. Which of the following is true for calcination of a metal ore ?

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  16. The difference (s) between roasting and calcination is / are :

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  17. The etraction of metals from oxide ores involves

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  18. Metals which can be extracted by smelting process are :

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  19. Of the following reduction processes, correct processes are :

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  20. During the production of iron and steel.

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