A mixture of haematite, coke and limestone, on heating in blast fu | Filo
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Class 12

Chemistry

Metallurgy

General Principles and Processes of Isolation of Elements

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A mixture of haematite, coke and limestone, on heating in blast furnace, gives molten iron metal. This is known as:

  1. Smelting
  2. Calcination
  3. Roasting
  4. Liquation
Correct Answer: Option(a)
Solution: In the extraction of iron:
Smelting is done in blast furnace, where a mixture of haematite, coke and limestone, on heating, gives molten iron metal. It is a combined term for the roasting, reduction and use of fluxes, all of which finally give iron, starting from its ore. 
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