Chemical Formulae, Equations and Reactions — JAMB Chemistry Past Questions
Chemical Formulae, Equations and Reactions 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 Formulae, Equations and Reactions questions with worked answers.
When JAMB examined Chemical Formulae, Equations and Reactions
Chemical Formulae, Equations and Reactions 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 Formulae, Equations and Reactions questions
Real Chemistry questions tagged to Chemical Formulae, Equations and Reactions. 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.
A mixture of petrol and water can be separated through:
- A The use of filter paper
- B Centrifugation
- C The use of a separating funnel
- D Distillation
Answer: C
Petrol and water are immiscible liquids with different densities. A separating funnel allows them to be separated based on these properties.
MnO₂(s) + xHCl(aq) → MnCl₂(aq) + yH₂O(l) + zCl₂(g). In the equation above, what are the values of x, y, and z respectively?
- A 2, 2, 2
- B 4, 2, 1
- C 2, 1, 2
- D 4, 1, 2
Answer and full explanation are inside the app.
Check the answerWhat is the concentration of a solution containing 2g of NaOH in 100 cm³ of solution? [Na = 23, O = 16, H = 1]
- A 0.50 mol dm⁻³
- B 0.30 mol dm⁻³
- C 0.40 mol dm⁻³
- D 0.05 mol dm⁻³
Answer and full explanation are inside the app.
Check the answerOther Chemistry topics
Drill Chemical Formulae, Equations and Reactions until it stops costing you marks
Filter Chemistry practice to Chemical Formulae, Equations and Reactions alone, work through it with worked explanations, and let the analytics show you when it has actually stuck. Free to start.
Chemical Formulae, Equations and Reactions in JAMB Chemistry: common questions
Are Chemical Formulae, Equations and Reactions questions free?
Yes. Create a free account and every Chemistry question tagged to Chemical Formulae, Equations and Reactions is available with a worked explanation. Past questions are not paywalled.
Is Chemical Formulae, Equations and Reactions really examined?
Yes. Chemical Formulae, Equations and Reactions appears in our bank across 8 JAMB years, taken from the questions themselves rather than a syllabus outline.
Can I practise Chemical Formulae, Equations and Reactions on its own?
Yes. JambUp lets you filter Chemistry questions to a single topic, so you can drill Chemical Formulae, Equations and Reactions until it stops costing you marks, then move on to the next weak area.