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Iron, Fe, can be extracted from iron oxide, Fe2O3, in a blast furnace, by the reaction shown in the equation - OCR Gateway - GCSE Chemistry: Combined Science - Question 7 - 2023 - Paper 10
Question 7
Iron, Fe, can be extracted from iron oxide, Fe2O3, in a blast furnace, by the reaction shown in the equation. Fe2O3 + 3X → 2Fe + 3Y What are the formulae of X and ... show full transcript
Worked Solution & Example Answer:Iron, Fe, can be extracted from iron oxide, Fe2O3, in a blast furnace, by the reaction shown in the equation - OCR Gateway - GCSE Chemistry: Combined Science - Question 7 - 2023 - Paper 10
Step 1
What are the formulae of X and Y?
Answer
To determine the values of X and Y in the equation given, we must analyze the reduction process of the iron oxide.
In a blast furnace, carbon monoxide (CO) is commonly used as a reducing agent for iron oxide. Therefore, X is CO.
For Y, the reaction produces carbon dioxide (CO2) as a byproduct when CO reduces Fe2O3. Thus, Y is CO2.
Consequently, the formulae of X and Y are:
- X = CO
- Y = CO2
Referring to the option choices provided, the correct answer is:
C
X = CO and Y = CO2.