AP EAMCET · Chemistry · General Principles and Processes of Isolation of Metals
Which among the following is used as flux in the extraction of iron from oxide ores?
- A \(\mathrm{SiO}_2\)
- B \(\mathrm{CaCO}_3\)
- C \(\mathrm{CaO}\)
- D \(\mathrm{CaSiO}_3\)
Answer & Solution
Correct Answer
(B) \(\mathrm{CaCO}_3\)
Step-by-step Solution
Detailed explanation
Lime stone \(\left(\mathrm{CaCO}_3\right)\) used in the extraction of Fe from haematite in blast furnace get decomposed to \(\mathrm{CaO}\), which removes silicate impurity (gangue) of the ore as molten slag.…
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