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Prevention of Corrosion

The iron (iii...

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The iron (iii) oxide, Fe_2O_3 reacts with CO to give iron and CO_2 Fe_2O_3 + 3CO →2Fe +3CO_2 The reaction of 480.0 g Fe_2O_{} with excess of CO yields 252.0 g iron. Thus.percentage yeld is (Fe = 55) a. 100.0% C. 75.0% b. 91.2% d. 50.0%

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Q. Iron (III) oxide can be reduced with

C O

to form metallic iron as described by unbalanced chemical reaction.

F e_{2} O_{3} + C O \to F e + C O_{2}

The number of moles of

C O

required to form one mole of

F e

from its oxide is:

Q. How many moles of iron can be made from the excess of

F e_{2} O_{3}

using 16 mol of carbon monoxide in the following reaction?

F e_{2} O_{3} + 3 C O \to 2 F e + 3 C O_{2}

Q. One of the reactions that occurs in a blast furnace, where iron ore is converted to cast iron is as follows:

F e_{2} O_{3} + 3 C O ⟶ 2 F e + 3 C O_{2}

1.64 \times 10^{3}

kg of Fe are obtained from

2.62 \times 10^{3}

F e_{2} O_{3}

. Assuming that the reaction goes to completion, what is the percent purity of

F e_{2} O_{3}

in the original sample (rounded to the nearest integer)?

Q. Given below are the different temperature reactions and products during extraction of iron in blast furnace.
P. 900 K 1.

F e_{2} O_{3} + 3 C \to 2 F e + 3 C O

C a C O_{3} \to C a O + C O_{2}

2 C + O_{2} \to 2 C O

F e_{2} O_{3} + 3 C O \to 2 F e + 3 C O_{2}

Find the correct match.

Q. The oxidizing agent in the given reaction is:

F e_{2} O_{3} + 3 C O \to 2 F e + 3 C O_{2}

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