JAMB Chemistry 2023 Objective — Question 14

Question 14 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2023 Objective paper, with the correct answer and a full explanation.

What volume of CO is produced by reacting excess carbon with 5 dm³ of oxygen?

A. 5 dm³
B. 8 dm³
C. 10 dm³Correct
D. 2 dm³

Explanation

2C + O₂ → 2CO. 1 mole O₂ produces 2 moles CO. By Gay-Lussac's law, 5 dm³ O₂ produces 10 dm³ CO.

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