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In blast furnace, iron oxide is reduced ...

In blast furnace, iron oxide is reduced by

A

Carbon

B

Limestone

C

CO

D

Zinc

Text Solution

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The correct Answer is:
C
CO
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In blast furnace, the iron oxide is reduced by

Near the top of the blast furnace, iron oxides are reduced to …… by carbon monoxide .

The chief ores of iron are haemalite (Fe_2O_3) , magnetite (Fe_3O_4) , limonite (FeO(OH)) and siderite (FeCO_3) .In the extraction of iron , oxides ores of iron, after concentration through calcination/roasting in reverberatory furnace are mixed with lime stone and coke and fed into a blast furnace. Here, the oxide is reduced to the metal. Reducing species in the extractive metallurgy of iron from haematite ore is :

The chief ores of iron are haemalite (Fe_2O_3) , magnetite (Fe_3O_4) , limonite (FeO(OH)) and siderite (FeCO_3) .In the extraction of iron , oxides ores of iron, after concentration through calcination/roasting in reverberatory furnace are mixed with lime stone and coke and fed into a blast furnace. Here, the oxide is reduced to the metal. Which of the following is obtained as a slag in the extraction of iron from haematite ore ?

MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-COMPETION FILE (Objective Questions) (Multiple Choice Question with only one correct answer)
  1. Copper pyrites are concentrated by

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  2. Electrolyte reduction method is used in the extraction of

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  3. The purpose of smelting an ore is

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  4. Which of the following metals is obtained by leaching its ore with dil...

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  5. Which of the following metals cannot be extracted by carbon reduction ...

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  6. Van Arkel method of purification of metals involves converting the met...

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  7. In which of the following, ore does not match with the metal ?

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  8. Smelting involves reduction of metal oxide with :

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  9. Out of the following matals that cannot be obtained by electrolysis of...

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  10. Which of the following is used in thermine welding ?

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  11. DeltaG^(Ө) vs T plot in Ellingham diagram slopes downward for the reac...

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  12. Which of the following statement is not true?

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  13. From the Ellingham graphs on carbon, which of the following statements...

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  14. During roasting of zinc blende, it converts to

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  15. The form of iron obtained from blast furnace is:

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  16. In blast furnace, iron oxide is reduced by

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  17. The smelting of iron in a blast furance involves all the steps except

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  18. Heating pyrities in air to remove sulphur is called

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  19. In the metallurgy of iron, when limestone is added to the blast furnac...

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  20. In electrorefining, the impure metal is made .

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