Question

What is the role of limestone in the extraction of iron from its oxides fe2o3?

Answer 1

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Iron is extracted from its ore, haematite, in a blast furnace. The ore is fed into the top of the furnace along with coke and limestone. ... The limestone decomposes in the hot furnace, forming calcium oxide. This reacts with the sandy impurities (silicon dioxide) to form a slag.

Answer 2

Explanation:

The main role of limestone in extraction of iron is to decomposes in hot furnace and form the calcium oxide. Iron is extracted from its ore, haematite, in a blast furnace. ... The limestone decomposes in the hot furnace, forming calcium oxide.