JAMB Chemistry Past Questions 2020

Practice JAMB 2020 Chemistry questions with detailed answers and explanations.

Sample Questions

About JAMB Chemistry 2020

JAMB Chemistry covers atomic structure, chemical bonding, chemical reactions, and organic chemistry with 40 questions. Strong performance is required for Medicine, Pharmacy, Biochemistry, and all Engineering programmes.

Study Tips for JAMB Chemistry

• 1Memorise the first 20 elements with their symbols and the periodic table trends (electronegativity, ionisation energy).
• 2Organic Chemistry (hydrocarbons, alcohols, esters, polymers) accounts for about 25% of JAMB Chemistry — do not skip it.
• 3Master mole calculations: molar mass, stoichiometry, and concentration problems appear in every paper.
• 4Revisit acid-base reactions, redox reactions, and electrolysis — reliable sources of 5–8 marks per year.

More tips in our blog: How to Score 300+ in JAMB →

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