Chemistry - Metallurgy Question with Solution | TestHub

ChemistryMetallurgyEllingham diagram & Reduction methods, Refining of metalMedium2 minQB

ChemistryMediumsingle choice

Passage / Comprehension

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Below point 'A' FeO can $____$ .

Options:

Answer:

Solution:

Based on the Ellingham diagram provided:

Point A is the intersection of the $F e \to F e O$ line and the $CO \to C O_{2}$ line. Below Point A, the line for $2 CO + O_{2} \to 2 C O_{2}$ lies lower (is more stable) than the $2 F e + O_{2} \to 2 F e O$ line, meaning CO can reduce $F e O$ . However, the carbon reduction lines ( $C + O_{2} \to C O_{2}$ and $2 C + O_{2} \to 2 CO$ ) are both above the iron oxide line in this temperature range, so carbon cannot reduce $F e O$ here. Therefore, in the region below temperature A, $F e O$ is only reducible by carbon monoxide.

Stream:JEESubject:ChemistryTopic:MetallurgySubtopic:Ellingham diagram & Reduction methods, Refining of metal

⏱ 2mℹ️ Source: QB

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