Here are the 2026 WAEC May/June chemistry Practical (Alternative A & B ) Questions and Answers along with free live WAEC Chemistry (CHM) Practical questions and answers Expo room (2026) WASSCE Chemistry 3 (Practical) (Alternative A/B) questions and answers. It's important to note that this exam is open to both internal and external candidates
WASSCE 2026 Chemistry Practical (Alternative A & B) - EXPO
This year WASSCE Chemistry Practical (Alternative A & B) examination is derived from the National Curriculum for Senior Secondary School chemistry Practical, outlining the course scope for examinations at this level.
2026 Chemistry Practical (Alternative A) Answers:
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A). 2024 Chemistry Practical (Alternative A) (1st Set) Answers:
(3a)
(i)ammonia (NH₃)
(ii)carbon dioxide (CO₂).
(3b)
(ii) A burette can be used.
(3c)
A fume cupboard in a laboratory is used to provide ventilation that limits exposure to toxic fumes, vapors, or dust.
(3d)
(i)safety goggles.
(ii)lab coats.
(iii)gloves.
WAEC 2024 chemistry Practical Questions paper :
2023 WAEC CHEMISTRY PRACTICAL ANSWER:
Important Note for Question 1
-
Use your school’s endpoint (average titre value) wherever you see ours (15.15 cm³).
-
Replace 15.15 in (1b) and calculate with it.
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If your school wants to use our value, then your chemistry teacher must submit an endpoint similar to ours without much difference (e.g. 15.15, 15.20, 15.30, etc.)
👉 Example:
-
Our calculation:
0.1 × 15.15 ÷ 1000 -
If your school’s endpoint is 12.50, your calculation should be:
0.1 × 12.50 ÷ 1000
(1a) Experimental Setup
Volume of pipette used, VA = 25.0 cm³
Indicator used = Methyl Orange
Table of Burette Readings:
| Burette Reading | Rough Titre | 1st Titre | 2nd Titre |
|---|---|---|---|
| Final Burette Reading (cm³) | 25.60 | 32.80 | 26.40 |
| Initial Burette Reading (cm³) | 1.20 | 8.70 | 2.30 |
| Volume of HCl used (cm³) | 24.40 | 24.10 | 24.10 |
Average burette reading:
Therefore, volume of HCl used = 24.10 cm³
(1b) Calculation Example
If using our endpoint:
If your school’s endpoint is 12.50:
Always use your school’s value unless instructed otherwise by your chemistry teacher
(3a) Test with NaOH
(i) If a few drops of NaOH are added to 2 cm³ of Pb(NO₃)₂ solution:
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A white precipitate of Lead(II) hydroxide [Pb(OH)₂] is formed.
Equation:
(ii) If a few drops of NaOH are added to 2 cm³ of FeSO₄ solution:
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A green precipitate of Iron(II) hydroxide [Fe(OH)₂] is formed.
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On exposure to air, Fe(OH)₂ is oxidized to Iron(III) hydroxide [Fe(OH)₃], a reddish-brown precipitate.
Equations:
Observation: Green precipitate turns reddish-brown in air.
WAEC 2023 CHEMISTRY PRACTICAL QUESTIONS (ALT. A & B) ANSWERS
WAEC CHEMISTRY PRACTICAL 2026 SPECIMEN
How To Pass 2026 Waec Chemistry Practical Alternative Question and Answers
- Study the syllabus: Review the WAEC Chemistry syllabus to understand the topics and practical exercises that may be covered in the exam. Pay attention to the required laboratory techniques and procedures.
- Practice experiments: Set up a makeshift laboratory at home or utilize your school's laboratory facilities to practice the practical experiments outlined in the syllabus. Perform the experiments following the instructions and record your observations and results accurately.
- Understand concepts and theories: Study the theoretical aspects of Chemistry to have a solid understanding of the principles behind the practical experiments. This will help you explain the purpose, expected outcomes, and underlying theories during the exam.
- Safety precautions: Familiarize yourself with safety measures and precautions in the laboratory. Be aware of proper handling and disposal of chemicals, use safety equipment such as goggles and lab coats, and follow all guidelines to ensure a safe environment.
- Time management: During the exam, manage your time effectively. Read the instructions carefully, plan your approach for each experiment, and allocate time accordingly. Be mindful of the time available and try to complete all tasks within the given duration.
- Review past papers: Solve previous years' WAEC Chemistry Practical papers to get acquainted with the format and types of questions asked. This will give you an idea of the level of difficulty and help you identify areas where you need more practice.
- Seek guidance: If you're having difficulty with specific concepts or experiments, don't hesitate to reach out to your teacher or instructor for clarification. They can provide additional guidance and support to help you better understand the material.

















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