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Before introducing FeO in blast furance,...

Before introducing `FeO` in blast furance, it is converted to `Fe_(2)O_(3)` by roasting so that

A

it may not be removed as slag with silica.

B

it may not evaporate in the furnace.

C

presence of it may increase the m.pt. of charge.

D

None of these.

Text Solution

Verified by Experts

The correct Answer is:
A
FeO is capable forming slag with ` SiO_2`
` SiO_2 + FeO to Fe SiO_3`
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DISHA PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE -1: CONCEPT BUILDER (TOPICWISE)
  1. Which of the following statement is correct?

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  2. Froth floatation process is based on .

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  3. Before introducing FeO in blast furance, it is converted to Fe(2)O(3) ...

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  4. Electrolytic reduction method is used fro the extraction of

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  5. Calcination is used in matallurgy for removal of

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  6. Heating of pyrites in air for oxidation of sulphur is called

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  7. Which one of the furnaces among the following can produce the highest ...

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  8. Furances are lined with calcium oxide as

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  9. Roasting is generally done in case of the

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  10. Aluminothermic process is used for the extraction of metals, whose oxi...

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  11. Frothers (used in Froth floatation process) are

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  12. Identify x,y,z for the following metallurgical process : metal sulph...

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  13. The process of converting hydrated alumina into anhydrous alumina is c...

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  14. Furances are lined with calcium oxide as

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  15. The substance used in the thermite process of reducing metal ores is

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  16. After partial roasting, the sulphide of copper is reduced by

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  17. Before introducing FeO in blast furance, it is converted to Fe(2)O(3) ...

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  18. ELLINGHAM DIAGRAM

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

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  20. The slag obtained during the extraction of copper from coper pyrites i...

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