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  • Assertion: Iron is extracted from iron ore using a blast furnace. Reason: The blast furnace utilizes carbon monoxide to reduce iron oxide and produce mol

Assertion: Iron is extracted from iron ore using a blast furnace.

Reason: The blast furnace utilizes carbon monoxide to reduce iron oxide and produce molten iron.

Option: 1

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion


Option: 2

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion


Option: 3

Assertion is correct but Reason is incorrect

 


Option: 4

Assertion is incorrect but Reason is correct


Answers (1)

best_answer

The assertion that iron is extracted from iron ore using a blast furnace is correct. The blast furnace is a commonly used method for the extraction of iron from iron ore. It is a large, cylindrical furnace where iron ore (mainly in the form of hematite, \mathrm{Fe}_2 \mathrm{O}_3, or magnetite, \mathrm{Fe}_3 \mathrm{O}_4 is combined with coke (carbon) and limestone and subjected to high temperatures.

The reason provided, stating that the blast furnace utilizes carbon monoxide (\mathrm{CO}) to reduce iron oxide and produce molten iron, is also correct. In the blast furnace, coke (which is primarily carbon) is burned to produce carbon monoxide gas. The carbon monoxide acts as a reducing agent and reacts with the iron oxide in the ore. The following reactions take place:

\begin{aligned} & \mathrm{Fe}_2 \mathrm{O}_3+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_2 \\ & \mathrm{Fe}_3 \mathrm{O}_4+4 \mathrm{CO} \rightarrow 3 \mathrm{Fe}+4 \mathrm{CO}_2 \end{aligned}

These reactions show the reduction of iron oxide  \left(\mathrm{Fe}_2 \mathrm{O}_3\, \, or\, \, \mathrm{Fe}_3 \mathrm{O}_4 )\right. by carbon monoxide,

resulting in the production of molten iron (Fe) and carbon dioxide \left(\mathrm{CO}_2\right)as a byproduct.

Therefore, both the assertion and the reason are correct, and the reason provides the correct explanation for the assertion.

 

Posted by

himanshu.meshram

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