In blast furnace, the iron oxide is reduced by: | Filo
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Class 12



General Principles and Processes of Isolation of Elements

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In blast furnace, the iron oxide is reduced by:

  1. silica
  2. carbon monoxide
  3. carbon
  4. lime stone
Correct Answer: Option(b)
Solution: is the main reducing agent in the furnace. Iron oxide is reduced to iron by .
In a blast furnace, a substance called coke (mainly C) reacts with oxygen, , to form carbon monoxide, . The carbon monoxide (a strong reducing agent) then reacts with iron oxide (in the form of hematite or magnetite) to form pig iron (mainly Fe) and carbon dioxide.

Option B is correct.
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general principles and processes of isolation of elements
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