JAMB Chemistry practice questions
Five free Chemistry questions with answers and explanations. The UTME Chemistry paper has 40 questions. Practise the full paper in a timed CBT on your phone.
Try five Chemistry questions
Question 1. The atomic number of an element is the number of
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B: protons in the nucleus. The atomic number is the number of protons. Protons plus neutrons give the mass number.
Question 2. What is the pH of a neutral solution at 25 °C?
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C: 7. At 25 °C a neutral solution has pH 7. Below 7 is acidic, above 7 is alkaline.
Question 3. What is the molar mass of water? (H = 1, O = 16)
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B: 18 g/mol. H₂O = 2 × 1 + 16 = 18 g/mol.
Question 4. Which gas turns limewater milky?
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C: carbon dioxide. Carbon dioxide reacts with limewater to form calcium carbonate, which makes it cloudy.
Question 5. Which of these is an alkali metal?
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B: sodium. Sodium is in Group 1, the alkali metals. Calcium is in Group 2.
What the Chemistry paper covers
- Atomic structure and the periodic table
- Chemical bonding and the mole concept
- Acids, bases and salts
- Electrolysis, rates and equilibrium
- Organic chemistry
These are the main areas. JAMB publishes the full syllabus for each subject, so use it as your checklist.
Practise the rest in a timed CBT
Etest JAMB CBT has 5,553 past questions across 11 subjects, each with the answer and an explanation. Set the timer, take the exam, then see your score subject by subject and review every answer.
Practice is free to start. Read more on the JAMB CBT practice page or in how to choose a JAMB CBT app.
Chemistry questions people ask
How many questions are in the JAMB Chemistry paper?
40 questions.
Is Chemistry compulsory in JAMB?
Only if your course asks for it. Use of English is compulsory; the other three subjects depend on the course you apply for, so check its requirements in JAMB's brochure.
Are these real JAMB questions?
No. The five questions on this page were written for practice. The Etest JAMB CBT app has past questions with explanations.
Is this official JAMB material?
No. Etest JAMB CBT is an independent practice app and is not linked to JAMB.