Which of the following reactions is a reduction? (2020)

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Question: Which of the following reactions is a reduction? (2020)

Options:

Correct Answer: Fe2O3 + 3CO → 2Fe + 3CO2

Exam Year: 2020

Solution:

In the reaction Fe2O3 + 3CO → 2Fe + 3CO2, iron (Fe) is reduced as it gains electrons from carbon monoxide (CO).

Which of the following reactions is a reduction? (2020)

Which of the following reactions is a reduction? (2020)

Step 1: Identify the reactants in the reaction: Fe2O3 and CO.
Step 2: Understand what reduction means: Reduction is when a substance gains electrons.
Step 3: Look at the products of the reaction: 2Fe and 3CO2.
Step 4: Determine what happens to iron (Fe) in the reaction: It goes from Fe2O3 to elemental Fe.
Step 5: Recognize that iron (Fe) is gaining electrons during this process.
Step 6: Identify that carbon monoxide (CO) is losing electrons to iron (Fe).
Step 7: Conclude that since iron (Fe) gains electrons, it is being reduced.

No concepts available.