Yomi BlackWorking Chemistry past papers for WAEC is a diagnostic exercise, and the diagnosis depends on the format. Here it is a written examination with an objective paper, an essay paper, and a practical or alternative to practical where the subject has one.
- Subject
- Chemistry
- Examined by
- WAEC
- Format here
- A written examination with an objective paper, an essay paper, and a practical or alternative to practical where the subject has one
- Depth
- Senior secondary depth, three years of teaching examined in one diet
- What the grade does
- A credit, and credits are the unit almost every admission requirement is written in
- Method
- Whole paper, timed, no notes, then marked, then tagged
- What they predict
- Nothing. New papers are set each diet.
Why the format changes the method
The papers are a written examination with an objective paper, an essay paper, and a practical or alternative to practical where the subject has one, and they are marked by examiners against a published mark scheme, with method marks awarded for working and presentation marks for layout.
The preparation that fits it: three years of school teaching, which means your gaps are your school’s gaps, and finding them is the first job.
The topic areas to tag against
- Separation of mixtures and purification.
- Atomic structure and bonding.
- The periodic table and periodicity.
- Stoichiometry and the mole concept.
- States of matter and gas laws.
- Energetics, rates and equilibrium.
- Acids, bases and salts.
- Oxidation and reduction, electrolysis.
- Organic chemistry.
- Metals, non-metals and their compounds.
What this subject punishes
Working past papers without knowing what the marker penalises wastes the exercise. In Chemistry the recurring losses are:
- Reporting titration values to the wrong number of decimal places.
- Balancing equations carelessly, which cascades through every calculation that follows.
- Ignoring the concordant-titres convention in the practical and averaging everything.
The mole concept sits underneath most of the calculation marks, and a candidate who has not internalised it loses across the whole paper rather than in one topic.
Do the stoichiometry until it is automatic. Every other calculation topic in the subject stands on it.
Match the papers to your syllabus period
Syllabuses carry year ranges and subjects are revised. Papers from a period governed by a different syllabus can send you into content no longer examined and leave out content that now is. Prefer papers within or close to your syllabus range, and treat older ones as practice in technique rather than as a guide to content.
Material sold before a paper as the paper itself is the route to a cancelled result. A past paper is one already sat and already marked. The two are not on a spectrum.
What you are practising for
The grade sits on a certificate that does not expire and that you will show for the rest of your working life. One diet a year for school candidates, so there is no second attempt inside the same admission cycle.
Quick answers on Chemistry
Is Chemistry compulsory?
No. It is a science subject, chosen as one of your electives, and you should choose it because a course you want names it.
What is it required for?
Medicine, pharmacy, chemical engineering, biochemistry, agriculture, nursing and the physical sciences.
How many papers are there?
Objective, essay, and a practical or alternative to practical.
What makes it hard?
The mole concept sits underneath most of the calculation marks, and a candidate who has not internalised it loses across the whole paper rather than in one topic.
What is the most common way candidates lose marks?
Reporting titration values to the wrong number of decimal places.
Where do I get the official syllabus?
From WAEC, on its own site, free. Check the year range on the cover before you use it.
Do the questions repeat?
No. New papers are set each diet. Past papers are a diagnostic, not a prediction.
How many years should I work?
Four papers properly analysed beat fifteen read. The analysis is where the value is, not the volume.
Working them properly
- Sit a whole paper at the printed duration. The first attempt will be uncomfortable, and that discomfort is the diagnostic.
- Mark it before looking at anything. Checking answers as you go turns the exercise into reading.
- Tag every question to a topic area. This converts a score into a plan.
- Sort the errors. Never taught it, forgot it, or ran out of time. Three problems, three fixes.
- Repeat monthly with a different year. Four papers analysed beat fifteen read.
- WAEC Chemistry: syllabus
- WAEC Chemistry: how to pass
- All WAEC subjects
- WAEC syllabus, all subjects
- WAEC grading and what counts as a credit
Sources
- The West African Examinations Council, Nigeria. Entry regulations for WASSCE. waecnigeria.org
- The West African Examinations Council, Nigeria. Registration and entry. waecnigeria.org
- The West African Examinations Council, Nigeria. Frequently Asked Questions. www.waecnigeria.org