Question

The reaction that does NOT take place in a blast furnace between 900 K to 1500 K temperature range during extraction of iron is? 

• A. FeO + CO \(\to\) Fe + CO₂
• B. C + CO₂ \(\to\) 2CO
• C. CaO + SiO₂ \(\to\) CaSiO₃
• D. Fe₂O₃ + CO \(\to\) 2FeO + CO₂

Answer 1

The Correct Option is D

To determine which reaction does not take place in the blast furnace between 900 K to 1500 K during the extraction of iron, we must examine the typical reactions involved in this process.

• The reaction FeO + CO → Fe + CO₂ is a reduction reaction essential for extracting iron. Hence, this reaction does occur.

• C + CO₂ → 2CO represents the formation of CO, which is a reducing agent vital for further reactions. This takedns place.

• CaO + SiO₂ → CaSiO₃ is a slag formation reaction to remove impurities and occurs within the furnace's temperature range.

• The reaction Fe₂O₃ + CO → 2FeO + CO₂ is not a typical occurrence at the given temperature range in the blast furnace process, as Fe₂O₃ is reduced in stages to obtain metallic iron, not reverted to FeO.

Thus, the reaction that does not take place in the blast furnace within the specified temperature range is:

Fe₂O₃ + CO → 2FeO + CO₂

Answer 2

Fe₂O₃ + CO → 2FeO + CO₂
This reaction does not take place at between 900 K to 1500 K temperature range during extraction of iron.
It takes place at between 500 K to 800 K temperature range.
So, the correct option is (D): Fe₂O₃ + CO \(\to\) 2FeO + CO₂