WAEC Chemistry Syllabus 2027 | Download WAEC Chemistry Syllabus PDF

Today you and I will quickly take a look at the topic “WAEC Chemistry Syllabus 2027 | Download WAEC Chemistry Syllabus PDF.”

If you are preparing for the WAEC examination, the Chemistry syllabus should be one of the first things you get.

It shows the areas you need to study.

It also helps you plan your reading and avoid spending too much time on topics that are not part of your examination preparation.

Chemistry covers many areas. These include atomic structure, periodic chemistry, chemical bonding, stoichiometry, states of matter, energy changes, acids and bases, solubility, chemical kinetics, redox reactions, organic chemistry, industrial chemistry, biochemistry and practical Chemistry.

So, do not read Chemistry without a plan.

Get the syllabus.

Break it into smaller topics.

Study each topic well.

Then practise questions and practical work.

If you have been searching for WAEC Chemistry Syllabus 2027, WAEC Chemistry Syllabus PDF, WAEC Chemistry topics 2027, WAEC Chemistry questions and answers, WAEC Chemistry past questions, WAEC Chemistry practical, WAEC Chemistry notes, WAEC Chemistry online lessons or Chemistry syllabus for WAEC, you are in the right place.

Right here, right now, you will find a clear guide to the major areas covered by the Chemistry syllabus.

WAEC Chemistry Syllabus 2027

The WAEC Chemistry syllabus is designed to test more than your ability to remember definitions.

You should understand Chemistry.

You should also be able to apply what you learn.

The syllabus covers:

• Introduction to Chemistry
• Structure of the atom
• Separation techniques
• Periodic chemistry
• Chemical bonding
• Stoichiometry
• States of matter
• Energy and energy changes
• Acids, bases and salts
• Solubility
• Chemical kinetics and equilibrium
• Redox reactions
• Chemistry of carbon compounds
• Chemistry, industry and the environment
• Basic biochemistry
• Synthetic polymers
• Non-metals and their compounds
• Metals and their compounds
• Practical Chemistry

The practical part is very important.

Do not prepare for WAEC Chemistry by reading theory alone.

Download WAEC Chemistry Syllabus PDF

You can download the WAEC Chemistry Syllabus PDF for your study.

You can also visit our main WAEC Syllabus for All Subjects page to find the syllabus for your other subjects.

Keep the PDF on your phone or computer.

Use it as a study checklist.

As you complete a topic, mark it as done.

WAEC Chemistry Examination Scheme

The Chemistry examination has three papers.

Candidates are expected to take all three papers.

WAEC Chemistry Paper 1

Paper 1 is the objective paper.

It contains 50 multiple-choice questions from the common section of the syllabus.

Candidates are required to answer all the questions within 1 hour.

The paper carries 50 marks.

WAEC Chemistry Paper 2

Paper 2 is the essay paper.

It lasts 2 hours and carries 100 marks.

It contains structured and essay questions from the Chemistry syllabus.

Candidates should be ready to:

• Explain Chemistry concepts.
• Write chemical equations.
• Balance equations.
• Perform calculations.
• Interpret information.
• Apply chemical principles.
• Solve numerical problems.

WAEC Chemistry Paper 3

Paper 3 is the practical examination for school candidates.

The syllabus also provides for an alternative-to-practical examination for private candidates.

The practical areas include:

• Quantitative analysis
• Qualitative analysis
• Laboratory skills
• Chemical tests
• Preparation of solutions
• Titration
• Observation and recording
• Practical activities

The official 2026 WAEC Nigeria timetable also lists Chemistry Paper 3 as a practical paper, showing the continued importance of practical Chemistry preparation.

WAEC Chemistry Syllabus Topics 2027

Below are the major areas you should cover.

1. Introduction to Chemistry

Start with the basics.

Study:

• Measurement of physical quantities
• Scientific measurement
• Importance of measurement
• Scientific methods
• Observation
• Hypothesis
• Experiment
• Laws
• Theories
• SI units
• Significant figures
• Accuracy
• Precision

You should be able to use the correct units in Chemistry calculations.

2. Structure of the Atom

Study the structure of the atom.

Important areas include:

• Protons
• Neutrons
• Electrons
• Atomic number
• Mass number
• Isotopes
• Relative atomic mass
• Relative molecular mass
• Atoms
• Molecules
• Ions
• Electron configuration
• Orbitals
• Sub-energy levels

You should also understand:

• Dalton’s atomic theory
• J.J. Thomson’s work
• Rutherford’s experiment
• Bohr’s model
• Aufbau principle
• Hund’s rule
• Pauli exclusion principle

Practise electron configurations.

They are important in many other Chemistry topics.

3. Separation Techniques for Mixtures

Study the different types of mixtures.

These include:

• Solid-solid mixtures
• Solid-liquid mixtures
• Liquid-liquid mixtures
• Gas-gas mixtures

Learn the methods used to separate mixtures.

These include:

• Filtration
• Crystallisation
• Distillation
• Precipitation
• Magnetisation
• Chromatography
• Sublimation

You should also know how purity can be tested using:

• Melting point
• Boiling point

4. Periodic Chemistry

The periodic table is a major part of WAEC Chemistry.

Study:

• Periodic law
• Periodic table
• Groups
• Periods
• Metals
• Non-metals
• Semi-metals
• Alkali metals
• Alkaline earth metals
• Halogens
• Transition elements

Also learn periodic trends such as:

• Atomic size
• Ionic size
• Ionisation energy
• Electron affinity
• Electronegativity

Study the periodic behaviour of elements in the third period.

You should also understand the properties of the halogens.

5. Transition Elements

Study the first transition series.

This includes elements from Scandium to Zinc.

Learn:

• Electron configurations
• Physical properties
• Chemical properties
• Oxidation states
• Coloured compounds
• Complex formation
• Catalytic properties
• Paramagnetism
• Hardness
• Magnetic properties

Also compare transition metals with s-block elements.

6. Chemical Bonding

Study the major types of chemical bonds.

These include:

• Ionic bonding
• Covalent bonding
• Coordinate covalent bonding
• Metallic bonding
• Intermolecular forces
• Hydrogen bonding
• Van der Waals forces

Understand how bonds are formed.

You should also know the properties of compounds formed by different types of bonding.

Study:

• Lewis structures
• Electronegativity
• Ionisation energy
• Electron affinity
• Molecular shapes
• Polarity

Important molecular shapes include:

• Linear
• Trigonal planar
• Tetrahedral

7. Stoichiometry and Chemical Reactions

This is one of the areas where many students need more practice.

Study:

• Chemical symbols
• Chemical formulae
• Chemical equations
• Empirical formula
• Molecular formula
• Mole concept
• Mole ratios
• Chemical combination laws
• Solutions
• Concentration
• Standard solutions
• Dilution

You should practise calculations involving:

• Moles
• Mass
• Volume
• Concentration
• Percentage composition
• Percentage yield
• Number of particles

Also study different types of chemical reactions:

• Combustion
• Synthesis
• Decomposition
• Displacement
• Ionic reactions

8. States of Matter

Study the three common states of matter:

• Solids
• Liquids
• Gases

Understand the kinetic theory of matter.

Study:

• Arrangement of particles
• Movement of particles
• Changes of state
• Diffusion
• Brownian motion
• Density
• Compressibility

For gases, study:

• Boyle’s law
• Charles’ law
• Dalton’s law
• Graham’s law
• Avogadro’s law
• Ideal gas equation

You should also understand the difference between ideal and real gases.

9. Energy and Energy Changes

Study:

• Energy
• Enthalpy
• Exothermic reactions
• Endothermic reactions
• Heat changes
• Combustion
• Dissolution
• Neutralisation

Understand the difference between exothermic and endothermic processes.

You should also learn how energy changes relate to chemical reactions.

10. Acids, Bases and Salts

This is another major WAEC Chemistry topic.

Study:

• Definitions of acids
• Definitions of bases
• Properties of acids
• Properties of bases
• Strong acids
• Weak acids
• Strong bases
• Weak bases
• Electrolytes
• Non-electrolytes
• pH
• Acid-base indicators
• Salts
• Hydrolysis
• Acid-base titration

Learn the Arrhenius concept of acids and bases.

Also understand how acids and bases react with:

• Metals
• Metal oxides
• Carbonates
• Hydrogen carbonates

11. pH and Indicators

You should understand the pH scale.

Study:

• Meaning of pH
• Acidic solutions
• Neutral solutions
• Alkaline solutions
• Universal indicator
• Methyl orange
• Phenolphthalein

Also learn how indicators are used in titration.

12. Salts

Study the different types of salts.

These include:

• Normal salts
• Acidic salts
• Basic salts
• Double salts
• Complex salts

Learn:

• Laboratory preparation
• Industrial preparation
• Uses of salts
• Solubility
• Hydrolysis

You should also know common examples of salts and their reactions.

13. Solubility of Substances

Study:

• Meaning of solubility
• Soluble substances
• Insoluble substances
• Saturated solutions
• Unsaturated solutions
• Solubility curves
• Effect of temperature
• Crystallisation
• Recrystallisation

Practise calculations involving solubility.

Also learn the basic solubility rules used in qualitative analysis.

14. Chemical Kinetics

Study the rate of chemical reactions.

Important factors include:

• Concentration
• Temperature
• Pressure
• Surface area
• Catalyst
• Light
• Nature of reactants

Understand:

• Collision theory
• Activation energy
• Effective collision
• Energy profile

You should also learn how to read and interpret reaction-rate graphs.

15. Chemical Equilibrium

Study:

• Reversible reactions
• Irreversible reactions
• Dynamic equilibrium
• Equilibrium constant
• Le Chatelier’s principle

Understand how changes in:

• Concentration
• Temperature
• Pressure
• Volume

affect equilibrium.

16. Redox Reactions

Study oxidation and reduction.

You should know oxidation and reduction in terms of:

• Gain and loss of oxygen
• Gain and loss of hydrogen
• Gain and loss of electrons
• Changes in oxidation number

Also study:

• Oxidising agents
• Reducing agents
• Oxidation states
• Redox equations

Practise balancing redox equations.

17. Electrochemical Cells

Study:

• Electrochemical cells
• Half-cells
• Electrode potential
• Standard electrode potential
• Cell notation
• Cell diagrams
• Electromotive force
• Primary cells
• Secondary cells

Examples include:

• Daniell cell
• Dry cell
• Lead-acid battery
• Fuel cell

Understand how chemical reactions can produce electrical energy.

18. Electrolysis

Study:

• Electrolytic cells
• Electrolysis
• Electrolytes
• Electrodes
• Discharge of ions
• Faraday’s laws
• Electroplating
• Extraction of metals
• Purification of metals

Practise calculations involving:

• Charge
• Current
• Time
• Mass
• Amount of substance
• Volume of gas

19. Corrosion

Study corrosion as a redox process.

The major example is rusting of iron.

Know:

• Conditions needed for rusting
• Effects of rusting
• Economic costs
• Prevention of corrosion

Methods of prevention include:

• Painting
• Oiling
• Greasing
• Galvanising
• Sacrificial protection
• Cathodic protection

20. Chemistry of Carbon Compounds

Organic Chemistry is a major part of WAEC Chemistry.

Study:

• Classification of organic compounds
• Functional groups
• Homologous series
• Isomerism
• Organic nomenclature
• Separation and purification
• Petroleum
• Empirical formula
• Molecular formula
• Molecular structures

21. Alkanes

Study:

• Sources
• Structure
• Nomenclature
• Physical properties
• Chemical properties
• Uses

Also learn:

• Combustion
• Substitution
• Cracking

Understand why alkanes are important as fuels and raw materials.

22. Alkenes

Study:

• Structure
• Nomenclature
• Preparation
• Properties
• Uses
• Addition reactions
• Oxidation
• Polymerisation

Know the tests used to identify alkenes.

23. Alkynes

Study:

• Structure
• Nomenclature
• Properties
• Preparation
• Uses
• Reactions

You should also understand the difference between terminal and non-terminal alkynes.

24. Benzene

Study:

• Structure of benzene
• Physical properties
• Chemical properties
• Resonance
• Stability
• Substitution reactions

Also understand how benzene differs from alkenes.

25. Alkanols

Study:

• Sources
• Structure
• Nomenclature
• Classification
• Physical properties
• Chemical properties
• Uses
• Laboratory tests

Know the difference between:

• Primary alkanols
• Secondary alkanols
• Tertiary alkanols

Ethanol is an important example.

26. Alkanoic Acids

Study:

• Sources
• Structure
• Nomenclature
• Physical properties
• Chemical properties
• Uses
• Laboratory tests

Know common examples such as:

• Methanoic acid
• Ethanoic acid
• Benzoic acid

27. Esters and Alkanoates

Study:

• Preparation
• Structure
• Nomenclature
• Physical properties
• Chemical properties
• Hydrolysis
• Uses

Esters are important in areas such as:

• Perfumes
• Flavouring
• Solvents
• Plasticisers
• Soap production

28. Petroleum and Crude Oil

Study:

• Composition of crude oil
• Classification
• Fractional distillation
• Petroleum products
• Cracking
• Reforming
• Petrochemicals
• Octane number
• Importance of petroleum

Also learn the uses of the major fractions obtained from crude oil.

29. Chemistry, Industry and the Environment

Study the relationship between Chemistry and industry.

Learn about:

• Chemical industries
• Raw materials
• Industrial products
• Fine chemicals
• Heavy chemicals
• Location of industries
• Environmental effects

Also study pollution.

Important areas include:

• Air pollution
• Water pollution
• Soil pollution
• Greenhouse effect
• Ozone depletion
• Biodegradable pollutants
• Non-biodegradable pollutants

30. Biotechnology and Food Processing

Study the role of Chemistry in biotechnology.

Examples include:

• Fermentation
• Food processing
• Production of garri
• Bread production
• Production of alcoholic beverages

Understand how chemical processes are used in everyday life.

31. Basic Biochemistry

Study the major biological molecules.

These include:

• Proteins
• Amino acids
• Fats
• Oils
• Carbohydrates

For proteins, study:

• Sources
• Properties
• Uses
• Amino acids
• Peptide bonds
• Hydrolysis
• Protein tests

32. Fats and Oils

Study:

• Sources
• Physical properties
• Chemical properties
• Structure
• Hydrolysis
• Hydrogenation
• Tests for fats and oils

Also learn how fats and oils are used to make soap.

33. Soap and Detergents

Study:

• Saponification
• Preparation of soap
• Properties of soap
• Soap in hard water
• Detergents
• Differences between soap and detergents

Know why some detergents work better than soap in hard water.

34. Carbohydrates

Study:

• Monosaccharides
• Disaccharides
• Polysaccharides
• Sources
• Structure
• Properties
• Uses

Examples include:

• Glucose
• Fructose
• Sucrose
• Starch

Also learn the tests used for reducing sugars and starch.

35. Synthetic Polymers

Study:

• Monomers
• Polymers
• Polymerisation
• Addition polymerisation
• Condensation polymerisation
• Thermoplastics
• Thermosets
• Plastics
• Resins

Understand how polymers are produced and used.

Also learn how some polymers can affect the environment.

36. Non-Metals and Their Compounds

This section covers several important elements and compounds.

Study:

• Carbon
• Oxygen
• Hydrogen
• Water
• Halogens
• Nitrogen
• Sulphur
• Noble gases

For each important element, learn:

• Preparation
• Properties
• Reactions
• Tests
• Uses

37. Carbon and Its Compounds

Study carbon allotropes such as:

• Diamond
• Graphite
• Amorphous carbon

Understand how their structures affect their properties.

Also study:

• Coal
• Coke
• Carbon oxides
• Carbonates

38. Oxygen

Study:

• Laboratory preparation
• Industrial preparation
• Properties
• Uses
• Tests

Know how to test for oxygen.

39. Hydrogen

Study:

• Laboratory preparation
• Properties
• Uses
• Tests

Know the test for hydrogen gas.

40. Water

Study:

• Composition of water
• Water as a solvent
• Hard water
• Soft water
• Causes of hardness
• Removal of hardness
• Water treatment

Understand the advantages and disadvantages of hard water.

41. Halogens

Study:

• Fluorine
• Chlorine
• Bromine
• Iodine

Pay special attention to:

• Physical properties
• Chemical properties
• Oxidising ability
• Displacement reactions
• Uses

Chlorine and its compounds are particularly important.

42. Nitrogen and Its Compounds

Study:

• Preparation of nitrogen
• Properties
• Uses
• Ammonia
• Nitric acid
• Nitrates

Also learn the preparation and properties of ammonia.

43. Sulphur and Its Compounds

Study:

• Allotropes of sulphur
• Uses of sulphur
• Sulphur compounds
• Sulphur dioxide
• Sulphuric acid
• Sulphates

Learn the Contact Process for the industrial production of sulphuric acid.

44. Noble Gases

Study the properties and uses of noble gases.

Know why they are generally less reactive than many other elements.

45. Metals and Their Compounds

Study the extraction, properties and uses of important metals.

These include:

• Aluminium
• Iron
• Tin
• Sodium
• Calcium
• Copper

Learn:

• Sources
• Ores
• Extraction
• Properties
• Uses
• Important compounds

46. Alloys

Study common alloys.

Know:

• Meaning of alloy
• Examples
• Composition
• Properties
• Uses

Examples include alloys of:

• Copper
• Aluminium
• Iron
• Lead
• Tin

47. WAEC Chemistry Practical

Do not leave practical Chemistry until the last minute.

Practise:

• Measurement of mass
• Measurement of volume
• Preparation of solutions
• Dilution
• Filtration
• Recrystallisation
• Melting point determination
• Heat measurement
• pH determination
• Rate-of-reaction experiments
• Equilibrium experiments
• Titration
• Qualitative analysis

WAEC Chemistry Titration

Titration is one practical area you should practise well.

Learn:

• Apparatus
• Indicators
• End point
• Titre value
• Standard solutions
• Concentration
• Molarity
• Mole ratio
• Calculations

You should be able to use titration results to calculate unknown concentrations.

WAEC Chemistry Qualitative Analysis

Study tests for common cations.

These include:

• NH4+
• Ca2+
• Pb2+
• Cu2+
• Fe2+
• Fe3+
• Al3+
• Zn2+

Also learn tests for common anions.

These include:

• Chloride
• Sulphite
• Carbonate
• Nitrate
• Sulphate

You should also know tests for gases such as:

• Hydrogen
• Ammonia
• Carbon dioxide
• Hydrogen chloride
• Sulphur dioxide

How to Prepare for WAEC Chemistry 2027

Do not try to finish the whole syllabus in one week.

Use a simple study plan.

Step 1: Get the syllabus

Use the syllabus to know what to study.

Step 2: Start with basic Chemistry

Make sure you understand atoms, formulae, equations and the mole concept.

Step 3: Practise calculations

Do not only read solved examples.

Solve questions yourself.

Step 4: Study Organic Chemistry

Learn the structures, reactions, properties and uses of organic compounds.

Step 5: Prepare for practical Chemistry

Learn laboratory apparatus, tests, observations and calculations.

Step 6: Use past questions

After studying a topic, answer related WAEC past questions.

Step 7: Revise

Return to difficult topics often.

WAEC Chemistry Questions and Answers

If you are searching for WAEC Chemistry questions and answers, use past questions as a revision tool.

Do not rely on claims that someone knows the exact questions that will appear in the examination.

No one can honestly guarantee the exact questions WAEC will set.

Instead:

Study → Practise → Check → Correct → Repeat.

This is a better way to prepare.

You can also explore our WAEC Past Questions and Answers resources.

WAEC Chemistry Online Lessons

You can combine the syllabus with online Chemistry lessons.

A good study pattern is:

WAEC syllabus → Chemistry lesson → Notes → Practice questions → Practical work → Revision

This makes it easier to track your progress.

If you are also preparing for JAMB, you can use the O3SCHOOLS JAMB App for additional CBT practice and study materials.

O3SCHOOLS JAMB App

Android:
https://play.google.com/store/apps/details?id=com.iafsawii.o3schools.jamb&hl=en

iPhone/iPad:
https://apps.apple.com/ng/app/o3schools-jamb-app/id6743569200

PC/Desktop/Laptop:
https://o3schools.com/jambapp

WAEC Syllabus for Other Subjects

Chemistry is only one part of your WAEC preparation.

You can also study the syllabus for your other subjects:

• WAEC English Language Syllabus
• WAEC Mathematics Syllabus
• WAEC Biology Syllabus
• WAEC Physics Syllabus
• WAEC Agricultural Science Syllabus
• WAEC Economics Syllabus
• WAEC Government Syllabus
• WAEC Geography Syllabus
• WAEC Civic Education Syllabus
• WAEC CRS Syllabus
• WAEC Commerce Syllabus
• WAEC Literature in English Syllabus

For the complete list, visit WAEC Syllabus for All Subjects.

WAEC 2027 Registration and Examination Updates

Do not focus only on the syllabus.

You should also keep track of registration, examination dates and other important WAEC updates.

Start with our WAEC Registration 2027 guide.

You can also check:

• WAEC Registration Portal
• How to Register for WAEC
• WAEC Registration Requirements
• WAEC Registration Fees
• WAEC Registration Closing Date
• WAEC Candidate Information
• WAEC Examination Centres
• WAEC CBT Registration
• WAEC Latest News
• WAEC Examination Date
• WAEC Timetable

Frequently Asked Questions About WAEC Chemistry Syllabus 2027

What is the WAEC Chemistry syllabus?

The WAEC Chemistry syllabus is a guide to the Chemistry areas candidates should study for the examination.

It covers theory, calculations, organic Chemistry, inorganic Chemistry and practical Chemistry.

What are the major WAEC Chemistry topics?

Major areas include:

• Atomic structure
• Periodic chemistry
• Chemical bonding
• Stoichiometry
• States of matter
• Energy changes
• Acids, bases and salts
• Solubility
• Chemical kinetics
• Equilibrium
• Redox reactions
• Organic Chemistry
• Industrial Chemistry
• Biochemistry
• Practical Chemistry

Does WAEC Chemistry have a practical examination?

Yes.

Chemistry includes a practical component for school candidates, while the examination arrangements for private candidates may include an alternative-to-practical paper. The exact arrangements should be checked against the applicable WAEC timetable and instructions for your examination year.

What should I study for WAEC Chemistry practical?

Focus on:

• Titration
• Qualitative analysis
• Laboratory apparatus
• Preparation of solutions
• Dilution
• Chemical tests
• Gas tests
• Cation tests
• Anion tests
• Organic compound tests
• Observations
• Calculations

Can past questions help me pass WAEC Chemistry?

Yes. Past questions are useful for practice.

But do not depend on past questions alone.

Study the syllabus first, understand each topic and then use past questions to test yourself.

Where can I download the WAEC Chemistry syllabus?

You can download the WAEC Chemistry Syllabus PDF.

You can also visit our WAEC Syllabus page.

Final Words

That’s the much we can take on the topic “WAEC Chemistry Syllabus 2027 | Download WAEC Chemistry Syllabus PDF.”

If you want a good result in Chemistry, start early.

Get the syllabus.

Study one topic at a time.

Practise calculations.

Learn your chemical equations.

Understand organic Chemistry.

Prepare for practical Chemistry.

Use past questions for revision.

And always go back to the topics you find difficult.

Do not wait until the examination is near before you start.

Read. Understand. Practise. Revise.

O3SCHOOLS TEAM

Related WAEC Resources

• WAEC Registration 2027
• WAEC Registration Portal
• How to Register for WAEC
• WAEC Registration Requirements
• WAEC Registration Fees
• WAEC Registration Closing Date
• WAEC Candidate Information
• WAEC Examination Centres
• WAEC CBT Registration
• WAEC Latest News
• WAEC Examination Date
• WAEC Timetable
• WAEC Syllabus for All Subjects
• WAEC Past Questions and Answers
• WAEC Grading System
• How to Check WAEC Result
• WAEC Certificate