Chemical Equilibrium — JAMB Chemistry Past Questions
Chemical Equilibrium is one topic inside the JAMB Chemistry syllabus, and drilling it on its own is usually faster than revising the whole subject again. Below: which JAMB years have examined it, then real Chemical Equilibrium questions with worked answers.
When JAMB examined Chemical Equilibrium
Chemical Equilibrium questions appear in our bank for the JAMB years below. This is taken from the questions themselves, not from a syllabus outline — so if a year is listed, this topic was genuinely examined that year.
A topic that keeps reappearing is a topic JAMB keeps testing. Newer years matter most, because question style drifts.
Try Chemical Equilibrium questions
Real Chemistry questions tagged to Chemical Equilibrium. The first is worked through completely so you can see how our explanations read — the rest you can attempt now and check inside the app.
In which of the following equilibrium the value of Kp is less than Kc?
- A A. N₂ + O₂ ⇌ 2NO
- B B. N₂ + 3H₂ ⇌ 2NH₃
- C C. 2SO₂ + O₂ ⇌ 2SO₃
- D D. O₂ ⇌ 2O
Answer: B
Kp < Kc when the number of moles of gaseous products is less than that of reactants. This occurs in: N₂ + 3H₂ ⇌ 2NH₃.
In the diagram above, which of the curves represents the evolution of oxygen with time in the equation 2KClO₃(s) → 2KCl(s) + 3O₂(g)?
- A Y
- B X
- C Q
- D Z
Answer and full explanation are inside the app.
Check the answerIn the chemical reaction 2SO₂(g) + O₂(g) ⇌ 2SO₃(g), the substance that will increase the rate of production of sulphur (VI) oxide is
- A Manganese (IV) oxide
- B Finely divided iron
- C Vanadium (V) oxide
- D Nickel
Answer and full explanation are inside the app.
Check the answerOther Chemistry topics
Drill Chemical Equilibrium until it stops costing you marks
Filter Chemistry practice to Chemical Equilibrium alone, work through it with worked explanations, and let the analytics show you when it has actually stuck. Free to start.
Chemical Equilibrium in JAMB Chemistry: common questions
Are Chemical Equilibrium questions free?
Yes. Create a free account and every Chemistry question tagged to Chemical Equilibrium is available with a worked explanation. Past questions are not paywalled.
Is Chemical Equilibrium really examined?
Yes. Chemical Equilibrium appears in our bank across 4 JAMB years, taken from the questions themselves rather than a syllabus outline.
Can I practise Chemical Equilibrium on its own?
Yes. JambUp lets you filter Chemistry questions to a single topic, so you can drill Chemical Equilibrium until it stops costing you marks, then move on to the next weak area.