JAMB Chemistry 2025 Objective — Question 13

Question 13 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2025 Objective paper, with the correct answer and a full explanation.

In the blast furnace, Fe₂O₃ is reduced by

A. Carbon monoxideCorrect
B. Carbon dioxide
C. Hydrogen
D. Steam

Explanation

Fe₂O₃ + 3CO → 2Fe + 3CO₂. Carbon monoxide (produced by incomplete combustion of coke) is the primary reducing agent.

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