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The disadvantages of carbon reduction me...

The disadvantages of carbon reduction method are:

A

high temperature needed which is expensive and requires the use of a blast furnace

B

many metals combine with carbon forming carbides

C

carbon combines with oxygen to form poisonous CO

D

carbon cannot be used with highly electro-positive metals

Text Solution

Verified by Experts

The correct Answer is:
A, B
When carbon is used as reducing agent, high temperature is needed which is expensive and requires the use of blast fumace.
Many E.P. metals reacts with carbon and forms metal carbides.
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AAKASH SERIES-METALLURGY-LEVEL-II (LECTRURE SHEET) (EXERCISE-I)
  1. For which of the following metal the carbon reduction cannot be used ?

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

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  3. The disadvantages of carbon reduction method are:

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

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  5. What are the froth stabilizers in forth floatation process

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  6. Froth flotation

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

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  8. Electrolysis method is used for the extraction of

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  9. Which of the following equation reprsents smelting process

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

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  11. The flux that can be used for the removal of hasic impurities like Cou...

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  12. Chemical reduction is used in the extraction of

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  13. Bessemerisation is used in the metallurgy of

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  14. Electro-metallurgical process (electrolysis of fused electrolyte) is e...

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  15. Electrolytic reduction is used in the extraction of

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  16. Carbon is used as a common reducing agent in the extraction of

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  17. The smelting of iron in a blast furnace involves the following process...

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  18. Which of the following reaction in the blast furnaces are endothermic ...

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  19. Silver is extracted by

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  20. In the electrolysis of alumina cryolite is added to:

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