NECO Chemistry is a high-stakes subject for any science student seeking university admission in Nigeria. A credit in NECO Chemistry satisfies the O’Level chemistry requirement accepted by every Nigerian university — and preparing with NECO-specific past questions is the most targeted approach available.
While NECO and WAEC share a similar chemistry curriculum, their examination styles differ. NECO Chemistry tends to test certain calculation topics and practical observations from a distinct angle, and students who prepare exclusively with WAEC past questions can find themselves wrong-footed. Working through NECO Chemistry past questions removes this risk entirely — you learn the format, the phrasing, and the depth NECO specifically requires.
This PDF compilation covers NECO Chemistry past questions up to 2022 with complete answers. It spans organic chemistry, inorganic chemistry, physical chemistry, stoichiometry, and the alternative-to-practical section. It is organised for both topic-based revision and full-paper practice, giving you the flexibility to use it in whatever way suits your preparation schedule.
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Ten real past-question-style items on Chemistry, the kind you’ll meet solved and explained in the textbook itself. Tap an option to check your answer.
1. What is the chemical symbol for Sodium?
2. Which gas is produced when a metal reacts with a dilute acid?
3. What is the pH value of a neutral solution at 25°C?
4. Which particle in an atom carries a negative charge?
5. What term describes a substance that speeds up a chemical reaction without being consumed?
6. What is the general formula for alkanes in organic chemistry?
7. Which process separates a mixture of miscible liquids with different boiling points?
8. What is the chemical name for common table salt?
9. What type of bond is formed by the transfer of electrons from one atom to another?
10. Which exam bodies commonly set the objective Chemistry past questions used for WAEC/JAMB preparation?