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Which of the following process makes the...

Which of the following process makes the one porous?

A

Roasting

B

Calcination

C

Reduction

D

Distillation

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
In roasting and calcinations ore becomes porous.
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AAKASH SERIES-METALLURGY-LEVEL-II (LECTRURE SHEET) (EXERCISE-I)
  1. The ore concentrated by electromagnetic separation is

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  2. Ellingham diagram does not represents

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  3. Which of the following process makes the one porous?

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  4. The extraction of metals from oxide ores involve

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

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  6. Roosting is carried out to

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  7. of the following reduction process, correct processes are:

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  8. Roasting of copper pyrites is done

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  9. Highly electropositive metals can not he extracted by carbon reduction...

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  10. Which one of the following metals can be extracted by aluminothermit p...

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  11. For which of the following metal the carbon reduction cannot be used ?

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  12. The advantages of using carbon to reduce a number of oxides and other ...

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  13. The disadvantages of carbon reduction method are:

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

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  15. What are the froth stabilizers in forth floatation process

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  16. Froth flotation

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  17. The function of adding cryolite in the clectrolytic reduction of alumi...

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  18. Electrolysis method is used for the extraction of

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  19. Which of the following equation reprsents smelting process

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  20. In the extraction of which of the following metals is used for amalgam...

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