JEE Main 2017 · 9 Apr · Shift 1 · Chemistry Q42

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ChemistrySingle correct+4 / -1Question 42 of 90

The following reaction occurs in the Blast Furnace where iron ore is reduced to iron metal :
$\ce{Fe2O3(s) + 3CO(g) <=> 2Fe(l) + 3CO2(g)}$
Using the Le Chatelier's principle, predict which one of the following will not disturb the equilibrium ?

Removal of CO

Removal of

\ce{CO2}

Addition of

\ce{CO2}

Addition of

\ce{Fe2O3}

Answer and worked solution

Official answer: D

$\ce{Fe2O3}$ is a solid, so its amount does not enter the equilibrium expression; adding it does not shift the equilibrium. Changing CO or $\ce{CO2}$ does.

Topics:Le Chatelier's principle Extraction of specific metals

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JEE Main 2017 · 9 Apr · Shift 1, Chemistry question 42